/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_55-pt_rwlock_rr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 03:16:43,869 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 03:16:43,941 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 03:16:43,946 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 03:16:43,946 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 03:16:43,974 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 03:16:43,975 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 03:16:43,975 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 03:16:43,976 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 03:16:43,976 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 03:16:43,976 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 03:16:43,977 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 03:16:43,977 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 03:16:43,980 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 03:16:43,980 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 03:16:43,980 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 03:16:43,981 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 03:16:43,982 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 03:16:43,982 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 03:16:43,982 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 03:16:43,982 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 03:16:43,983 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 03:16:43,983 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 03:16:43,984 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 03:16:43,984 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 03:16:43,984 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 03:16:43,984 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 03:16:43,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:16:43,985 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 03:16:43,985 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 03:16:43,986 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 03:16:43,986 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 03:16:43,986 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 03:16:43,986 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 03:16:43,986 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 03:16:43,987 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 03:16:44,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 03:16:44,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 03:16:44,315 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 03:16:44,316 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 03:16:44,317 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 03:16:44,322 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_55-pt_rwlock_rr.i [2023-08-25 03:16:45,465 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 03:16:45,768 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 03:16:45,768 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_55-pt_rwlock_rr.i [2023-08-25 03:16:45,790 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c4e61368/0d5fb8c3b53e4dd2ae4c1bf4fcd76c59/FLAG6fd0e5c23 [2023-08-25 03:16:45,805 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c4e61368/0d5fb8c3b53e4dd2ae4c1bf4fcd76c59 [2023-08-25 03:16:45,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 03:16:45,811 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 03:16:45,813 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 03:16:45,813 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 03:16:45,815 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 03:16:45,815 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:16:45" (1/1) ... [2023-08-25 03:16:45,816 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13009c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:45, skipping insertion in model container [2023-08-25 03:16:45,816 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:16:45" (1/1) ... [2023-08-25 03:16:45,862 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 03:16:46,244 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:16:46,260 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 03:16:46,281 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 03:16:46,283 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 03:16:46,290 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [736] [2023-08-25 03:16:46,298 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:16:46,353 INFO L206 MainTranslator]: Completed translation [2023-08-25 03:16:46,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:46 WrapperNode [2023-08-25 03:16:46,354 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 03:16:46,355 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 03:16:46,355 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 03:16:46,355 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 03:16:46,361 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:46" (1/1) ... [2023-08-25 03:16:46,392 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:46" (1/1) ... [2023-08-25 03:16:46,417 INFO L138 Inliner]: procedures = 263, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2023-08-25 03:16:46,418 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 03:16:46,419 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 03:16:46,420 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 03:16:46,420 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 03:16:46,426 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:46" (1/1) ... [2023-08-25 03:16:46,427 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:46" (1/1) ... [2023-08-25 03:16:46,439 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:46" (1/1) ... [2023-08-25 03:16:46,439 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:46" (1/1) ... [2023-08-25 03:16:46,443 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:46" (1/1) ... [2023-08-25 03:16:46,444 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:46" (1/1) ... [2023-08-25 03:16:46,446 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:46" (1/1) ... [2023-08-25 03:16:46,446 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:46" (1/1) ... [2023-08-25 03:16:46,457 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 03:16:46,458 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 03:16:46,458 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 03:16:46,459 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 03:16:46,459 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:46" (1/1) ... [2023-08-25 03:16:46,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:16:46,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:16:46,484 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 03:16:46,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 03:16:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockReadLock [2023-08-25 03:16:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 03:16:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 03:16:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockUnlock [2023-08-25 03:16:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 03:16:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 03:16:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 03:16:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 03:16:46,521 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 03:16:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 03:16:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 03:16:46,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 03:16:46,523 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 03:16:46,674 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 03:16:46,677 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 03:16:46,867 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 03:16:46,877 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 03:16:46,878 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 03:16:46,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:16:46 BoogieIcfgContainer [2023-08-25 03:16:46,880 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 03:16:46,882 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 03:16:46,882 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 03:16:46,885 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 03:16:46,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 03:16:45" (1/3) ... [2023-08-25 03:16:46,885 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@774a84ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:16:46, skipping insertion in model container [2023-08-25 03:16:46,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:16:46" (2/3) ... [2023-08-25 03:16:46,886 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@774a84ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:16:46, skipping insertion in model container [2023-08-25 03:16:46,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:16:46" (3/3) ... [2023-08-25 03:16:46,887 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_55-pt_rwlock_rr.i [2023-08-25 03:16:46,905 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 03:16:46,906 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-08-25 03:16:46,906 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 03:16:46,983 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-25 03:16:47,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 83 transitions, 174 flow [2023-08-25 03:16:47,076 INFO L124 PetriNetUnfolderBase]: 0/82 cut-off events. [2023-08-25 03:16:47,076 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 03:16:47,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 82 events. 0/82 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-08-25 03:16:47,080 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 83 transitions, 174 flow [2023-08-25 03:16:47,083 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 75 transitions, 153 flow [2023-08-25 03:16:47,087 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 03:16:47,095 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 75 transitions, 153 flow [2023-08-25 03:16:47,098 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 75 transitions, 153 flow [2023-08-25 03:16:47,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 75 transitions, 153 flow [2023-08-25 03:16:47,116 INFO L124 PetriNetUnfolderBase]: 0/75 cut-off events. [2023-08-25 03:16:47,116 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:16:47,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 75 events. 0/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-25 03:16:47,118 INFO L119 LiptonReduction]: Number of co-enabled transitions 1232 [2023-08-25 03:16:49,165 INFO L134 LiptonReduction]: Checked pairs total: 3988 [2023-08-25 03:16:49,166 INFO L136 LiptonReduction]: Total number of compositions: 55 [2023-08-25 03:16:49,177 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 03:16:49,182 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;@7af4f50c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 03:16:49,183 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-08-25 03:16:49,186 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 03:16:49,186 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-08-25 03:16:49,186 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:16:49,186 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:16:49,187 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 03:16:49,187 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-08-25 03:16:49,191 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:16:49,192 INFO L85 PathProgramCache]: Analyzing trace with hash 260727654, now seen corresponding path program 1 times [2023-08-25 03:16:49,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:16:49,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824125995] [2023-08-25 03:16:49,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:16:49,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:16:49,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:16:49,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:16:49,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:16:49,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824125995] [2023-08-25 03:16:49,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824125995] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:16:49,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:16:49,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:16:49,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646465618] [2023-08-25 03:16:49,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:16:49,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:16:49,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:16:49,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:16:49,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:16:49,395 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 138 [2023-08-25 03:16:49,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 25 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:16:49,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:16:49,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 138 [2023-08-25 03:16:49,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:16:49,509 INFO L124 PetriNetUnfolderBase]: 79/230 cut-off events. [2023-08-25 03:16:49,510 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:16:49,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 230 events. 79/230 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1091 event pairs, 16 based on Foata normal form. 0/201 useless extension candidates. Maximal degree in co-relation 413. Up to 107 conditions per place. [2023-08-25 03:16:49,515 INFO L140 encePairwiseOnDemand]: 131/138 looper letters, 27 selfloop transitions, 4 changer transitions 0/36 dead transitions. [2023-08-25 03:16:49,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 36 transitions, 137 flow [2023-08-25 03:16:49,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:16:49,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:16:49,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2023-08-25 03:16:49,532 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.606280193236715 [2023-08-25 03:16:49,533 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 251 transitions. [2023-08-25 03:16:49,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 251 transitions. [2023-08-25 03:16:49,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:16:49,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 251 transitions. [2023-08-25 03:16:49,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:16:49,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:16:49,546 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:16:49,548 INFO L175 Difference]: Start difference. First operand has 29 places, 25 transitions, 53 flow. Second operand 3 states and 251 transitions. [2023-08-25 03:16:49,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 36 transitions, 137 flow [2023-08-25 03:16:49,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 36 transitions, 136 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:16:49,552 INFO L231 Difference]: Finished difference. Result has 30 places, 26 transitions, 78 flow [2023-08-25 03:16:49,554 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=30, PETRI_TRANSITIONS=26} [2023-08-25 03:16:49,557 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2023-08-25 03:16:49,557 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 26 transitions, 78 flow [2023-08-25 03:16:49,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:16:49,557 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:16:49,558 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:16:49,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 03:16:49,558 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-08-25 03:16:49,566 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:16:49,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1451233665, now seen corresponding path program 1 times [2023-08-25 03:16:49,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:16:49,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604381399] [2023-08-25 03:16:49,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:16:49,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:16:49,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:16:49,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:16:49,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:16:49,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604381399] [2023-08-25 03:16:49,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604381399] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:16:49,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:16:49,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:16:49,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829771436] [2023-08-25 03:16:49,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:16:49,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:16:49,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:16:49,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:16:49,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:16:49,644 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 138 [2023-08-25 03:16:49,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 26 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:16:49,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:16:49,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 138 [2023-08-25 03:16:49,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:16:49,709 INFO L124 PetriNetUnfolderBase]: 80/231 cut-off events. [2023-08-25 03:16:49,710 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-25 03:16:49,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 489 conditions, 231 events. 80/231 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1126 event pairs, 37 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 479. Up to 140 conditions per place. [2023-08-25 03:16:49,712 INFO L140 encePairwiseOnDemand]: 133/138 looper letters, 28 selfloop transitions, 4 changer transitions 0/37 dead transitions. [2023-08-25 03:16:49,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 37 transitions, 176 flow [2023-08-25 03:16:49,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:16:49,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:16:49,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 239 transitions. [2023-08-25 03:16:49,714 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5772946859903382 [2023-08-25 03:16:49,714 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 239 transitions. [2023-08-25 03:16:49,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 239 transitions. [2023-08-25 03:16:49,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:16:49,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 239 transitions. [2023-08-25 03:16:49,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:16:49,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:16:49,717 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:16:49,717 INFO L175 Difference]: Start difference. First operand has 30 places, 26 transitions, 78 flow. Second operand 3 states and 239 transitions. [2023-08-25 03:16:49,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 37 transitions, 176 flow [2023-08-25 03:16:49,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 37 transitions, 164 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 03:16:49,719 INFO L231 Difference]: Finished difference. Result has 32 places, 29 transitions, 102 flow [2023-08-25 03:16:49,719 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=32, PETRI_TRANSITIONS=29} [2023-08-25 03:16:49,720 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 3 predicate places. [2023-08-25 03:16:49,720 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 29 transitions, 102 flow [2023-08-25 03:16:49,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:16:49,720 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:16:49,721 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:16:49,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 03:16:49,721 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-08-25 03:16:49,721 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:16:49,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1473968550, now seen corresponding path program 1 times [2023-08-25 03:16:49,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:16:49,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278469087] [2023-08-25 03:16:49,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:16:49,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:16:49,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:16:49,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 03:16:49,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:16:49,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278469087] [2023-08-25 03:16:49,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278469087] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:16:49,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:16:49,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 03:16:49,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126149622] [2023-08-25 03:16:49,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:16:49,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 03:16:49,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:16:49,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 03:16:49,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 03:16:49,766 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 138 [2023-08-25 03:16:49,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 29 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:16:49,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:16:49,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 138 [2023-08-25 03:16:49,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:16:49,825 INFO L124 PetriNetUnfolderBase]: 113/283 cut-off events. [2023-08-25 03:16:49,825 INFO L125 PetriNetUnfolderBase]: For 103/115 co-relation queries the response was YES. [2023-08-25 03:16:49,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 680 conditions, 283 events. 113/283 cut-off events. For 103/115 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1284 event pairs, 34 based on Foata normal form. 6/256 useless extension candidates. Maximal degree in co-relation 669. Up to 136 conditions per place. [2023-08-25 03:16:49,827 INFO L140 encePairwiseOnDemand]: 132/138 looper letters, 31 selfloop transitions, 5 changer transitions 2/43 dead transitions. [2023-08-25 03:16:49,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 43 transitions, 224 flow [2023-08-25 03:16:49,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 03:16:49,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 03:16:49,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 249 transitions. [2023-08-25 03:16:49,829 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6014492753623188 [2023-08-25 03:16:49,829 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 249 transitions. [2023-08-25 03:16:49,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 249 transitions. [2023-08-25 03:16:49,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:16:49,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 249 transitions. [2023-08-25 03:16:49,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:16:49,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:16:49,832 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:16:49,833 INFO L175 Difference]: Start difference. First operand has 32 places, 29 transitions, 102 flow. Second operand 3 states and 249 transitions. [2023-08-25 03:16:49,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 43 transitions, 224 flow [2023-08-25 03:16:49,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 43 transitions, 212 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 03:16:49,838 INFO L231 Difference]: Finished difference. Result has 33 places, 32 transitions, 134 flow [2023-08-25 03:16:49,838 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=33, PETRI_TRANSITIONS=32} [2023-08-25 03:16:49,839 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 4 predicate places. [2023-08-25 03:16:49,839 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 32 transitions, 134 flow [2023-08-25 03:16:49,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 03:16:49,839 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:16:49,839 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:16:49,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 03:16:49,840 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-08-25 03:16:49,840 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:16:49,840 INFO L85 PathProgramCache]: Analyzing trace with hash -392355325, now seen corresponding path program 1 times [2023-08-25 03:16:49,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:16:49,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868561943] [2023-08-25 03:16:49,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:16:49,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:16:49,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 03:16:49,868 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 03:16:49,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 03:16:49,896 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 03:16:49,896 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 03:16:49,897 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 11 remaining) [2023-08-25 03:16:49,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2023-08-25 03:16:49,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2023-08-25 03:16:49,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2023-08-25 03:16:49,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 11 remaining) [2023-08-25 03:16:49,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2023-08-25 03:16:49,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2023-08-25 03:16:49,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2023-08-25 03:16:49,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2023-08-25 03:16:49,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2023-08-25 03:16:49,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2023-08-25 03:16:49,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 03:16:49,901 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-25 03:16:49,908 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 03:16:49,908 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 03:16:49,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 03:16:49 BasicIcfg [2023-08-25 03:16:49,928 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 03:16:49,928 INFO L158 Benchmark]: Toolchain (without parser) took 4117.25ms. Allocated memory was 375.4MB in the beginning and 509.6MB in the end (delta: 134.2MB). Free memory was 350.1MB in the beginning and 387.3MB in the end (delta: -37.2MB). Peak memory consumption was 97.8MB. Max. memory is 16.0GB. [2023-08-25 03:16:49,929 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 375.4MB. Free memory is still 353.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 03:16:49,929 INFO L158 Benchmark]: CACSL2BoogieTranslator took 541.17ms. Allocated memory is still 375.4MB. Free memory was 350.1MB in the beginning and 321.5MB in the end (delta: 28.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-08-25 03:16:49,930 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.51ms. Allocated memory is still 375.4MB. Free memory was 321.5MB in the beginning and 319.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:16:49,930 INFO L158 Benchmark]: Boogie Preprocessor took 38.19ms. Allocated memory is still 375.4MB. Free memory was 319.4MB in the beginning and 317.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:16:49,931 INFO L158 Benchmark]: RCFGBuilder took 421.36ms. Allocated memory is still 375.4MB. Free memory was 317.3MB in the beginning and 303.2MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-25 03:16:49,931 INFO L158 Benchmark]: TraceAbstraction took 3046.03ms. Allocated memory was 375.4MB in the beginning and 509.6MB in the end (delta: 134.2MB). Free memory was 302.6MB in the beginning and 387.3MB in the end (delta: -84.6MB). Peak memory consumption was 51.7MB. Max. memory is 16.0GB. [2023-08-25 03:16:49,933 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 375.4MB. Free memory is still 353.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 541.17ms. Allocated memory is still 375.4MB. Free memory was 350.1MB in the beginning and 321.5MB in the end (delta: 28.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 63.51ms. Allocated memory is still 375.4MB. Free memory was 321.5MB in the beginning and 319.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 38.19ms. Allocated memory is still 375.4MB. Free memory was 319.4MB in the beginning and 317.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 421.36ms. Allocated memory is still 375.4MB. Free memory was 317.3MB in the beginning and 303.2MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 3046.03ms. Allocated memory was 375.4MB in the beginning and 509.6MB in the end (delta: 134.2MB). Free memory was 302.6MB in the beginning and 387.3MB in the end (delta: -84.6MB). Peak memory consumption was 51.7MB. 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: 2.1s, 79 PlacesBefore, 29 PlacesAfterwards, 75 TransitionsBefore, 25 TransitionsAfterwards, 1232 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 55 TotalNumberOfCompositions, 3988 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1754, independent: 1501, independent conditional: 0, independent unconditional: 1501, dependent: 253, dependent conditional: 0, dependent unconditional: 253, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 669, independent: 624, independent conditional: 0, independent unconditional: 624, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1754, independent: 877, independent conditional: 0, independent unconditional: 877, dependent: 208, dependent conditional: 0, dependent unconditional: 208, unknown: 669, unknown conditional: 0, unknown unconditional: 669] , Statistics on independence cache: Total cache size (in pairs): 108, Positive cache size: 87, Positive conditional cache size: 0, Positive unconditional cache size: 87, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 931]: Data race detected Data race detected The following path leads to a data race: [L917] 0 static int data1; [L918] 0 static int data2; [L919] 0 static pthread_rwlock_t rwlock = { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }; [L928] 0 pthread_t id; [L929] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data1=0, data2=0, id={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, rwlock={1:0}] [L922] 1 data1++ VAL [arg={0:0}, arg={0:0}, data1++=0, data1=1, data2=0, rwlock={1:0}] [L922] 1 data1++ VAL [arg={0:0}, arg={0:0}, data1++=0, data1++=33, data1=1, data2=0, rwlock={1:0}] [L931] 0 printf("%d",data1) VAL [arg={0:0}, arg={0:0}, data1++=0, data1++=33, data1=1, data2=0, id={3:0}, rwlock={1:0}] Now there is a data race on ~data1~0 between C: data1++ [922] and C: printf("%d",data1) [931] - UnprovableResult [Line: 932]: 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 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: 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. - UnprovableResult [Line: 922]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 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, 108 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 115 IncrementalHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 10 mSDtfsCounter, 115 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=3, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-25 03:16:49,967 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...