./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 265daba2b5ad7b4578f16c23ab641f7a5441c3a3894a2482737cba7b750ee6df --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 06:55:09,878 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:55:09,951 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-09 06:55:09,957 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:55:09,959 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:55:09,992 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:55:09,995 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:55:09,995 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:55:09,996 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:55:09,998 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:55:09,998 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:55:09,999 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:55:09,999 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 06:55:09,999 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:55:10,002 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:55:10,002 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:55:10,003 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:55:10,003 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:55:10,003 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:55:10,003 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:55:10,004 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:55:10,004 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:55:10,008 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 06:55:10,008 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:55:10,009 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:55:10,009 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:55:10,009 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:55:10,009 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:55:10,010 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:55:10,010 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:55:10,010 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:55:10,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:55:10,010 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:55:10,011 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:55:10,011 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:55:10,011 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 06:55:10,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:55:10,014 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:55:10,014 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 06:55:10,014 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 06:55:10,014 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:55:10,015 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 265daba2b5ad7b4578f16c23ab641f7a5441c3a3894a2482737cba7b750ee6df [2024-11-09 06:55:10,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:55:10,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:55:10,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:55:10,323 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:55:10,324 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:55:10,325 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.i [2024-11-09 06:55:11,848 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:55:12,102 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:55:12,103 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.i [2024-11-09 06:55:12,121 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c02cea8e/7f96b78034b3420f9d086de5d29ac592/FLAG3be1cdbee [2024-11-09 06:55:12,136 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c02cea8e/7f96b78034b3420f9d086de5d29ac592 [2024-11-09 06:55:12,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:55:12,139 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:55:12,140 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:55:12,141 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:55:12,146 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:55:12,147 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:55:12" (1/1) ... [2024-11-09 06:55:12,148 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27c7b0a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:12, skipping insertion in model container [2024-11-09 06:55:12,148 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:55:12" (1/1) ... [2024-11-09 06:55:12,193 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:55:12,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:55:12,680 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:55:12,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:55:12,790 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:55:12,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:12 WrapperNode [2024-11-09 06:55:12,791 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:55:12,792 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:55:12,793 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:55:12,793 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:55:12,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:12" (1/1) ... [2024-11-09 06:55:12,821 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:12" (1/1) ... [2024-11-09 06:55:12,849 INFO L138 Inliner]: procedures = 171, calls = 49, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 105 [2024-11-09 06:55:12,850 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:55:12,851 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:55:12,851 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:55:12,851 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:55:12,860 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:12" (1/1) ... [2024-11-09 06:55:12,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:12" (1/1) ... [2024-11-09 06:55:12,866 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:12" (1/1) ... [2024-11-09 06:55:12,870 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:12" (1/1) ... [2024-11-09 06:55:12,888 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:12" (1/1) ... [2024-11-09 06:55:12,896 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:12" (1/1) ... [2024-11-09 06:55:12,900 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:12" (1/1) ... [2024-11-09 06:55:12,901 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:12" (1/1) ... [2024-11-09 06:55:12,906 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:55:12,907 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:55:12,908 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:55:12,908 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:55:12,909 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:12" (1/1) ... [2024-11-09 06:55:12,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:55:12,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:55:12,947 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 06:55:12,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 06:55:13,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:55:13,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:55:13,003 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 06:55:13,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:55:13,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:55:13,003 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-09 06:55:13,004 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-09 06:55:13,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:55:13,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:55:13,004 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 06:55:13,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:55:13,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:55:13,007 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 06:55:13,138 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:55:13,140 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:55:13,435 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 06:55:13,435 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:55:13,483 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:55:13,483 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-09 06:55:13,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:55:13 BoogieIcfgContainer [2024-11-09 06:55:13,484 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:55:13,487 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:55:13,488 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:55:13,492 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:55:13,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:55:12" (1/3) ... [2024-11-09 06:55:13,494 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57974248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:55:13, skipping insertion in model container [2024-11-09 06:55:13,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:12" (2/3) ... [2024-11-09 06:55:13,495 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57974248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:55:13, skipping insertion in model container [2024-11-09 06:55:13,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:55:13" (3/3) ... [2024-11-09 06:55:13,501 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_11-ptr_racing.i [2024-11-09 06:55:13,520 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:55:13,520 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-11-09 06:55:13,521 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 06:55:13,636 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 06:55:13,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 171 transitions, 349 flow [2024-11-09 06:55:13,840 INFO L124 PetriNetUnfolderBase]: 19/235 cut-off events. [2024-11-09 06:55:13,840 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 06:55:13,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 235 events. 19/235 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 713 event pairs, 0 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 131. Up to 4 conditions per place. [2024-11-09 06:55:13,851 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 171 transitions, 349 flow [2024-11-09 06:55:13,860 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 161 places, 171 transitions, 349 flow [2024-11-09 06:55:13,874 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:55:13,884 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@4930b524, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:55:13,884 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-09 06:55:13,907 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:55:13,907 INFO L124 PetriNetUnfolderBase]: 2/60 cut-off events. [2024-11-09 06:55:13,907 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:55:13,908 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:55:13,909 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:13,910 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-09 06:55:13,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:13,918 INFO L85 PathProgramCache]: Analyzing trace with hash 467652431, now seen corresponding path program 1 times [2024-11-09 06:55:13,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:55:13,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208521415] [2024-11-09 06:55:13,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:13,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:14,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:14,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:14,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:55:14,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208521415] [2024-11-09 06:55:14,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208521415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:14,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:14,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:55:14,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436421553] [2024-11-09 06:55:14,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:14,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:55:14,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:55:15,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:55:15,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:55:15,415 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 171 [2024-11-09 06:55:15,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 171 transitions, 349 flow. Second operand has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 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) [2024-11-09 06:55:15,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:55:15,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 171 [2024-11-09 06:55:15,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:55:15,982 INFO L124 PetriNetUnfolderBase]: 579/2152 cut-off events. [2024-11-09 06:55:15,982 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-09 06:55:15,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3410 conditions, 2152 events. 579/2152 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 15013 event pairs, 372 based on Foata normal form. 224/2225 useless extension candidates. Maximal degree in co-relation 3262. Up to 1080 conditions per place. [2024-11-09 06:55:16,009 INFO L140 encePairwiseOnDemand]: 136/171 looper letters, 73 selfloop transitions, 70 changer transitions 0/250 dead transitions. [2024-11-09 06:55:16,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 250 transitions, 793 flow [2024-11-09 06:55:16,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:55:16,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:55:16,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 828 transitions. [2024-11-09 06:55:16,028 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8070175438596491 [2024-11-09 06:55:16,033 INFO L175 Difference]: Start difference. First operand has 161 places, 171 transitions, 349 flow. Second operand 6 states and 828 transitions. [2024-11-09 06:55:16,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 250 transitions, 793 flow [2024-11-09 06:55:16,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 250 transitions, 793 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:55:16,051 INFO L231 Difference]: Finished difference. Result has 169 places, 226 transitions, 783 flow [2024-11-09 06:55:16,053 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=783, PETRI_PLACES=169, PETRI_TRANSITIONS=226} [2024-11-09 06:55:16,058 INFO L277 CegarLoopForPetriNet]: 161 programPoint places, 8 predicate places. [2024-11-09 06:55:16,060 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 226 transitions, 783 flow [2024-11-09 06:55:16,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 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) [2024-11-09 06:55:16,061 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:55:16,061 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:16,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:55:16,062 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-09 06:55:16,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:16,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1570351445, now seen corresponding path program 1 times [2024-11-09 06:55:16,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:55:16,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99868189] [2024-11-09 06:55:16,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:16,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:16,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:16,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:16,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:55:16,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99868189] [2024-11-09 06:55:16,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99868189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:16,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:16,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:55:16,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138720945] [2024-11-09 06:55:16,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:16,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:55:16,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:55:16,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:55:16,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:55:16,203 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 171 [2024-11-09 06:55:16,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 226 transitions, 783 flow. Second operand has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 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) [2024-11-09 06:55:16,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:55:16,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 171 [2024-11-09 06:55:16,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:55:16,371 INFO L124 PetriNetUnfolderBase]: 188/1063 cut-off events. [2024-11-09 06:55:16,373 INFO L125 PetriNetUnfolderBase]: For 119/133 co-relation queries the response was YES. [2024-11-09 06:55:16,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1750 conditions, 1063 events. 188/1063 cut-off events. For 119/133 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6099 event pairs, 28 based on Foata normal form. 1/992 useless extension candidates. Maximal degree in co-relation 1641. Up to 191 conditions per place. [2024-11-09 06:55:16,383 INFO L140 encePairwiseOnDemand]: 168/171 looper letters, 22 selfloop transitions, 3 changer transitions 0/232 dead transitions. [2024-11-09 06:55:16,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 232 transitions, 845 flow [2024-11-09 06:55:16,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:55:16,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:55:16,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 445 transitions. [2024-11-09 06:55:16,385 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8674463937621832 [2024-11-09 06:55:16,386 INFO L175 Difference]: Start difference. First operand has 169 places, 226 transitions, 783 flow. Second operand 3 states and 445 transitions. [2024-11-09 06:55:16,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 232 transitions, 845 flow [2024-11-09 06:55:16,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 232 transitions, 845 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:55:16,402 INFO L231 Difference]: Finished difference. Result has 172 places, 226 transitions, 794 flow [2024-11-09 06:55:16,402 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=783, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=794, PETRI_PLACES=172, PETRI_TRANSITIONS=226} [2024-11-09 06:55:16,403 INFO L277 CegarLoopForPetriNet]: 161 programPoint places, 11 predicate places. [2024-11-09 06:55:16,403 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 226 transitions, 794 flow [2024-11-09 06:55:16,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 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) [2024-11-09 06:55:16,404 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:55:16,405 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:16,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:55:16,406 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-09 06:55:16,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:16,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1630556509, now seen corresponding path program 1 times [2024-11-09 06:55:16,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:55:16,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992206865] [2024-11-09 06:55:16,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:16,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:16,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:16,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:16,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:55:16,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992206865] [2024-11-09 06:55:16,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992206865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:16,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:16,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:55:16,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049559501] [2024-11-09 06:55:16,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:16,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:55:16,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:55:16,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:55:16,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:55:17,159 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 171 [2024-11-09 06:55:17,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 226 transitions, 794 flow. Second operand has 6 states, 6 states have (on average 121.16666666666667) internal successors, (727), 6 states have internal predecessors, (727), 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) [2024-11-09 06:55:17,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:55:17,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 171 [2024-11-09 06:55:17,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:55:17,501 INFO L124 PetriNetUnfolderBase]: 370/1574 cut-off events. [2024-11-09 06:55:17,502 INFO L125 PetriNetUnfolderBase]: For 473/492 co-relation queries the response was YES. [2024-11-09 06:55:17,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3252 conditions, 1574 events. 370/1574 cut-off events. For 473/492 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 10718 event pairs, 96 based on Foata normal form. 2/1519 useless extension candidates. Maximal degree in co-relation 3131. Up to 642 conditions per place. [2024-11-09 06:55:17,517 INFO L140 encePairwiseOnDemand]: 153/171 looper letters, 112 selfloop transitions, 53 changer transitions 0/285 dead transitions. [2024-11-09 06:55:17,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 285 transitions, 1366 flow [2024-11-09 06:55:17,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:55:17,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:55:17,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 797 transitions. [2024-11-09 06:55:17,521 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.776803118908382 [2024-11-09 06:55:17,521 INFO L175 Difference]: Start difference. First operand has 172 places, 226 transitions, 794 flow. Second operand 6 states and 797 transitions. [2024-11-09 06:55:17,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 285 transitions, 1366 flow [2024-11-09 06:55:17,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 285 transitions, 1360 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 06:55:17,535 INFO L231 Difference]: Finished difference. Result has 180 places, 269 transitions, 1276 flow [2024-11-09 06:55:17,536 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=788, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1276, PETRI_PLACES=180, PETRI_TRANSITIONS=269} [2024-11-09 06:55:17,537 INFO L277 CegarLoopForPetriNet]: 161 programPoint places, 19 predicate places. [2024-11-09 06:55:17,538 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 269 transitions, 1276 flow [2024-11-09 06:55:17,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 121.16666666666667) internal successors, (727), 6 states have internal predecessors, (727), 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) [2024-11-09 06:55:17,539 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:55:17,540 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:17,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:55:17,540 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-09 06:55:17,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:17,542 INFO L85 PathProgramCache]: Analyzing trace with hash 794013781, now seen corresponding path program 1 times [2024-11-09 06:55:17,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:55:17,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185621240] [2024-11-09 06:55:17,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:17,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:17,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:55:17,566 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:55:17,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:55:17,620 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 06:55:17,621 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:55:17,623 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-11-09 06:55:17,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-09 06:55:17,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-09 06:55:17,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-09 06:55:17,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-09 06:55:17,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-09 06:55:17,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2024-11-09 06:55:17,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-09 06:55:17,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-09 06:55:17,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-09 06:55:17,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-09 06:55:17,626 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-09 06:55:17,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:55:17,627 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 06:55:17,634 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 06:55:17,634 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-09 06:55:17,682 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 06:55:17,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 222 places, 237 transitions, 490 flow [2024-11-09 06:55:17,731 INFO L124 PetriNetUnfolderBase]: 34/393 cut-off events. [2024-11-09 06:55:17,731 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-09 06:55:17,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 405 conditions, 393 events. 34/393 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1497 event pairs, 0 based on Foata normal form. 0/337 useless extension candidates. Maximal degree in co-relation 237. Up to 8 conditions per place. [2024-11-09 06:55:17,735 INFO L82 GeneralOperation]: Start removeDead. Operand has 222 places, 237 transitions, 490 flow [2024-11-09 06:55:17,738 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 222 places, 237 transitions, 490 flow [2024-11-09 06:55:17,739 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:55:17,740 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@4930b524, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:55:17,740 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-09 06:55:17,745 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:55:17,745 INFO L124 PetriNetUnfolderBase]: 2/60 cut-off events. [2024-11-09 06:55:17,745 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:55:17,745 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:55:17,745 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:17,746 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 06:55:17,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:17,746 INFO L85 PathProgramCache]: Analyzing trace with hash -83295473, now seen corresponding path program 1 times [2024-11-09 06:55:17,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:55:17,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206545671] [2024-11-09 06:55:17,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:17,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:17,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:18,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:18,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:55:18,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206545671] [2024-11-09 06:55:18,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206545671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:18,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:18,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:55:18,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642143851] [2024-11-09 06:55:18,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:18,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:55:18,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:55:18,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:55:18,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:55:18,306 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 237 [2024-11-09 06:55:18,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 237 transitions, 490 flow. Second operand has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 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) [2024-11-09 06:55:18,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:55:18,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 237 [2024-11-09 06:55:18,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:55:26,891 INFO L124 PetriNetUnfolderBase]: 29151/68521 cut-off events. [2024-11-09 06:55:26,892 INFO L125 PetriNetUnfolderBase]: For 733/733 co-relation queries the response was YES. [2024-11-09 06:55:27,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114057 conditions, 68521 events. 29151/68521 cut-off events. For 733/733 co-relation queries the response was YES. Maximal size of possible extension queue 1181. Compared 763548 event pairs, 20503 based on Foata normal form. 8143/72555 useless extension candidates. Maximal degree in co-relation 101006. Up to 40549 conditions per place. [2024-11-09 06:55:27,345 INFO L140 encePairwiseOnDemand]: 180/237 looper letters, 122 selfloop transitions, 134 changer transitions 0/399 dead transitions. [2024-11-09 06:55:27,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 399 transitions, 1331 flow [2024-11-09 06:55:27,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:55:27,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:55:27,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1187 transitions. [2024-11-09 06:55:27,348 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8347398030942335 [2024-11-09 06:55:27,349 INFO L175 Difference]: Start difference. First operand has 222 places, 237 transitions, 490 flow. Second operand 6 states and 1187 transitions. [2024-11-09 06:55:27,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 399 transitions, 1331 flow [2024-11-09 06:55:27,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 399 transitions, 1331 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:55:27,365 INFO L231 Difference]: Finished difference. Result has 230 places, 350 transitions, 1328 flow [2024-11-09 06:55:27,366 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1328, PETRI_PLACES=230, PETRI_TRANSITIONS=350} [2024-11-09 06:55:27,366 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 8 predicate places. [2024-11-09 06:55:27,367 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 350 transitions, 1328 flow [2024-11-09 06:55:27,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 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) [2024-11-09 06:55:27,368 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:55:27,368 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:27,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:55:27,368 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 06:55:27,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:27,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1544665099, now seen corresponding path program 1 times [2024-11-09 06:55:27,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:55:27,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743943756] [2024-11-09 06:55:27,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:27,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:27,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:27,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:27,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:55:27,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743943756] [2024-11-09 06:55:27,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743943756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:27,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:27,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:55:27,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397271551] [2024-11-09 06:55:27,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:27,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:55:27,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:55:27,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:55:27,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:55:27,449 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 237 [2024-11-09 06:55:27,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 350 transitions, 1328 flow. Second operand has 3 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 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) [2024-11-09 06:55:27,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:55:27,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 237 [2024-11-09 06:55:27,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:55:31,006 INFO L124 PetriNetUnfolderBase]: 9834/30958 cut-off events. [2024-11-09 06:55:31,006 INFO L125 PetriNetUnfolderBase]: For 5174/5550 co-relation queries the response was YES. [2024-11-09 06:55:31,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55394 conditions, 30958 events. 9834/30958 cut-off events. For 5174/5550 co-relation queries the response was YES. Maximal size of possible extension queue 600. Compared 350060 event pairs, 3863 based on Foata normal form. 1/28435 useless extension candidates. Maximal degree in co-relation 49398. Up to 9284 conditions per place. [2024-11-09 06:55:31,442 INFO L140 encePairwiseOnDemand]: 234/237 looper letters, 32 selfloop transitions, 3 changer transitions 0/358 dead transitions. [2024-11-09 06:55:31,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 358 transitions, 1420 flow [2024-11-09 06:55:31,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:55:31,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:55:31,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 610 transitions. [2024-11-09 06:55:31,445 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8579465541490858 [2024-11-09 06:55:31,445 INFO L175 Difference]: Start difference. First operand has 230 places, 350 transitions, 1328 flow. Second operand 3 states and 610 transitions. [2024-11-09 06:55:31,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 358 transitions, 1420 flow [2024-11-09 06:55:31,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 358 transitions, 1420 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:55:31,612 INFO L231 Difference]: Finished difference. Result has 233 places, 352 transitions, 1353 flow [2024-11-09 06:55:31,613 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=1328, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1353, PETRI_PLACES=233, PETRI_TRANSITIONS=352} [2024-11-09 06:55:31,615 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 11 predicate places. [2024-11-09 06:55:31,615 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 352 transitions, 1353 flow [2024-11-09 06:55:31,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 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) [2024-11-09 06:55:31,616 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:55:31,617 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:31,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 06:55:31,617 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 06:55:31,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:31,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1452137411, now seen corresponding path program 1 times [2024-11-09 06:55:31,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:55:31,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314220865] [2024-11-09 06:55:31,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:31,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:31,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:31,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:31,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:55:31,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314220865] [2024-11-09 06:55:31,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314220865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:31,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:31,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:55:31,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205614352] [2024-11-09 06:55:31,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:31,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:55:31,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:55:31,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:55:31,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:55:32,398 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 237 [2024-11-09 06:55:32,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 352 transitions, 1353 flow. Second operand has 6 states, 6 states have (on average 165.16666666666666) internal successors, (991), 6 states have internal predecessors, (991), 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) [2024-11-09 06:55:32,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:55:32,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 237 [2024-11-09 06:55:32,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:55:38,649 INFO L124 PetriNetUnfolderBase]: 21468/52051 cut-off events. [2024-11-09 06:55:38,650 INFO L125 PetriNetUnfolderBase]: For 19115/20486 co-relation queries the response was YES. [2024-11-09 06:55:38,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116664 conditions, 52051 events. 21468/52051 cut-off events. For 19115/20486 co-relation queries the response was YES. Maximal size of possible extension queue 1027. Compared 574105 event pairs, 8210 based on Foata normal form. 38/49382 useless extension candidates. Maximal degree in co-relation 116492. Up to 25409 conditions per place. [2024-11-09 06:55:39,063 INFO L140 encePairwiseOnDemand]: 211/237 looper letters, 192 selfloop transitions, 141 changer transitions 0/531 dead transitions. [2024-11-09 06:55:39,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 531 transitions, 2821 flow [2024-11-09 06:55:39,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:55:39,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:55:39,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1141 transitions. [2024-11-09 06:55:39,067 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8023909985935302 [2024-11-09 06:55:39,067 INFO L175 Difference]: Start difference. First operand has 233 places, 352 transitions, 1353 flow. Second operand 6 states and 1141 transitions. [2024-11-09 06:55:39,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 531 transitions, 2821 flow [2024-11-09 06:55:39,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 531 transitions, 2818 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 06:55:39,331 INFO L231 Difference]: Finished difference. Result has 242 places, 483 transitions, 2734 flow [2024-11-09 06:55:39,332 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=1350, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2734, PETRI_PLACES=242, PETRI_TRANSITIONS=483} [2024-11-09 06:55:39,333 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 20 predicate places. [2024-11-09 06:55:39,333 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 483 transitions, 2734 flow [2024-11-09 06:55:39,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.16666666666666) internal successors, (991), 6 states have internal predecessors, (991), 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) [2024-11-09 06:55:39,334 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:55:39,336 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:39,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 06:55:39,336 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 06:55:39,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:39,336 INFO L85 PathProgramCache]: Analyzing trace with hash -109579940, now seen corresponding path program 1 times [2024-11-09 06:55:39,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:55:39,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271629830] [2024-11-09 06:55:39,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:39,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:39,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:39,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:55:39,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271629830] [2024-11-09 06:55:39,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271629830] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:55:39,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208081703] [2024-11-09 06:55:39,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:39,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:55:39,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:55:39,436 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:55:39,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:55:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:39,548 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:55:39,550 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:39,622 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:39,623 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:55:39,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:39,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208081703] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:55:39,715 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:55:39,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-09 06:55:39,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175229818] [2024-11-09 06:55:39,715 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:55:39,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:55:39,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:55:39,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:55:39,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:55:39,803 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 237 [2024-11-09 06:55:39,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 483 transitions, 2734 flow. Second operand has 10 states, 10 states have (on average 191.3) internal successors, (1913), 10 states have internal predecessors, (1913), 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) [2024-11-09 06:55:39,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:55:39,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 237 [2024-11-09 06:55:39,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:55:44,275 INFO L124 PetriNetUnfolderBase]: 12751/34552 cut-off events. [2024-11-09 06:55:44,276 INFO L125 PetriNetUnfolderBase]: For 23626/25136 co-relation queries the response was YES. [2024-11-09 06:55:44,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85420 conditions, 34552 events. 12751/34552 cut-off events. For 23626/25136 co-relation queries the response was YES. Maximal size of possible extension queue 603. Compared 364597 event pairs, 2011 based on Foata normal form. 197/33131 useless extension candidates. Maximal degree in co-relation 35054. Up to 13493 conditions per place. [2024-11-09 06:55:44,527 INFO L140 encePairwiseOnDemand]: 232/237 looper letters, 72 selfloop transitions, 9 changer transitions 0/491 dead transitions. [2024-11-09 06:55:44,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 491 transitions, 2904 flow [2024-11-09 06:55:44,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:55:44,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:55:44,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1782 transitions. [2024-11-09 06:55:44,532 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8354430379746836 [2024-11-09 06:55:44,532 INFO L175 Difference]: Start difference. First operand has 242 places, 483 transitions, 2734 flow. Second operand 9 states and 1782 transitions. [2024-11-09 06:55:44,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 491 transitions, 2904 flow [2024-11-09 06:55:44,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 491 transitions, 2886 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-09 06:55:44,789 INFO L231 Difference]: Finished difference. Result has 202 places, 435 transitions, 2630 flow [2024-11-09 06:55:44,790 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=2608, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=426, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2630, PETRI_PLACES=202, PETRI_TRANSITIONS=435} [2024-11-09 06:55:44,791 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, -20 predicate places. [2024-11-09 06:55:44,791 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 435 transitions, 2630 flow [2024-11-09 06:55:44,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 191.3) internal successors, (1913), 10 states have internal predecessors, (1913), 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) [2024-11-09 06:55:44,793 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:55:44,793 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:44,812 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 06:55:44,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:55:44,998 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 06:55:44,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:44,999 INFO L85 PathProgramCache]: Analyzing trace with hash -369686586, now seen corresponding path program 1 times [2024-11-09 06:55:44,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:55:44,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368926744] [2024-11-09 06:55:44,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:45,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:45,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:45,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:45,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:55:45,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368926744] [2024-11-09 06:55:45,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368926744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:45,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:45,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:55:45,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128817271] [2024-11-09 06:55:45,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:45,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:55:45,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:55:45,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:55:45,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:55:45,640 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 237 [2024-11-09 06:55:45,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 435 transitions, 2630 flow. Second operand has 6 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 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) [2024-11-09 06:55:45,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:55:45,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 237 [2024-11-09 06:55:45,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:55:51,197 INFO L124 PetriNetUnfolderBase]: 19381/43330 cut-off events. [2024-11-09 06:55:51,197 INFO L125 PetriNetUnfolderBase]: For 43582/45766 co-relation queries the response was YES. [2024-11-09 06:55:51,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129445 conditions, 43330 events. 19381/43330 cut-off events. For 43582/45766 co-relation queries the response was YES. Maximal size of possible extension queue 716. Compared 430540 event pairs, 5304 based on Foata normal form. 67/41642 useless extension candidates. Maximal degree in co-relation 112407. Up to 28116 conditions per place. [2024-11-09 06:55:51,534 INFO L140 encePairwiseOnDemand]: 210/237 looper letters, 338 selfloop transitions, 213 changer transitions 0/666 dead transitions. [2024-11-09 06:55:51,534 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 666 transitions, 5074 flow [2024-11-09 06:55:51,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:55:51,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:55:51,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1048 transitions. [2024-11-09 06:55:51,537 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7369901547116737 [2024-11-09 06:55:51,537 INFO L175 Difference]: Start difference. First operand has 202 places, 435 transitions, 2630 flow. Second operand 6 states and 1048 transitions. [2024-11-09 06:55:51,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 666 transitions, 5074 flow [2024-11-09 06:55:51,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 666 transitions, 5051 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-09 06:55:51,875 INFO L231 Difference]: Finished difference. Result has 207 places, 638 transitions, 4917 flow [2024-11-09 06:55:51,876 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=2607, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4917, PETRI_PLACES=207, PETRI_TRANSITIONS=638} [2024-11-09 06:55:51,877 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, -15 predicate places. [2024-11-09 06:55:51,877 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 638 transitions, 4917 flow [2024-11-09 06:55:51,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 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) [2024-11-09 06:55:51,878 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:55:51,879 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:51,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 06:55:51,879 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 06:55:51,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:51,880 INFO L85 PathProgramCache]: Analyzing trace with hash 34053723, now seen corresponding path program 1 times [2024-11-09 06:55:51,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:55:51,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512114566] [2024-11-09 06:55:51,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:51,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:52,748 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 06:55:52,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:55:52,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512114566] [2024-11-09 06:55:52,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512114566] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:55:52,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150932491] [2024-11-09 06:55:52,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:52,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:55:52,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:55:52,752 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:55:52,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:55:52,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:52,869 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 06:55:52,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:53,037 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-09 06:55:53,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-09 06:55:53,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-09 06:55:53,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-09 06:55:53,211 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:55:53,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-09 06:55:53,246 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:55:53,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-09 06:55:53,456 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2024-11-09 06:55:53,500 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 06:55:53,502 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:55:53,553 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (and (forall ((v_ArrVal_267 (Array Int Int))) (= |c_ULTIMATE.start_main_#t~nondet16#1| (select (select (store |c_#race| c_t_funThread1of2ForFork0_~p~0.base v_ArrVal_267) |c_ULTIMATE.start_main_~#t_ids~0#1.base|) (+ .cse0 |c_ULTIMATE.start_main_~#t_ids~0#1.offset| 1)))) (forall ((v_ArrVal_267 (Array Int Int))) (= (select (select (store |c_#race| c_t_funThread1of2ForFork0_~p~0.base v_ArrVal_267) |c_ULTIMATE.start_main_~#t_ids~0#1.base|) (+ .cse0 3 |c_ULTIMATE.start_main_~#t_ids~0#1.offset|)) |c_ULTIMATE.start_main_#t~nondet16#1|)) (forall ((v_ArrVal_267 (Array Int Int))) (= (select (select (store |c_#race| c_t_funThread1of2ForFork0_~p~0.base v_ArrVal_267) |c_ULTIMATE.start_main_~#t_ids~0#1.base|) (+ .cse0 |c_ULTIMATE.start_main_~#t_ids~0#1.offset|)) |c_ULTIMATE.start_main_#t~nondet16#1|)) (forall ((v_ArrVal_267 (Array Int Int))) (= |c_ULTIMATE.start_main_#t~nondet16#1| (select (select (store |c_#race| c_t_funThread1of2ForFork0_~p~0.base v_ArrVal_267) |c_ULTIMATE.start_main_~#t_ids~0#1.base|) (+ .cse0 2 |c_ULTIMATE.start_main_~#t_ids~0#1.offset|)))))) is different from false [2024-11-09 06:55:53,698 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (and (forall ((v_ArrVal_267 (Array Int Int))) (= |c_ULTIMATE.start_main_#t~nondet16#1| (select (select (store |c_#race| |c_~#global~0.base| v_ArrVal_267) |c_ULTIMATE.start_main_~#t_ids~0#1.base|) (+ .cse0 2 |c_ULTIMATE.start_main_~#t_ids~0#1.offset|)))) (forall ((v_ArrVal_267 (Array Int Int))) (= (select (select (store |c_#race| |c_~#global~0.base| v_ArrVal_267) |c_ULTIMATE.start_main_~#t_ids~0#1.base|) (+ .cse0 3 |c_ULTIMATE.start_main_~#t_ids~0#1.offset|)) |c_ULTIMATE.start_main_#t~nondet16#1|)) (forall ((v_ArrVal_267 (Array Int Int))) (= (select (select (store |c_#race| |c_~#global~0.base| v_ArrVal_267) |c_ULTIMATE.start_main_~#t_ids~0#1.base|) (+ .cse0 |c_ULTIMATE.start_main_~#t_ids~0#1.offset|)) |c_ULTIMATE.start_main_#t~nondet16#1|)) (forall ((v_ArrVal_267 (Array Int Int))) (= |c_ULTIMATE.start_main_#t~nondet16#1| (select (select (store |c_#race| |c_~#global~0.base| v_ArrVal_267) |c_ULTIMATE.start_main_~#t_ids~0#1.base|) (+ .cse0 |c_ULTIMATE.start_main_~#t_ids~0#1.offset| 1)))))) is different from false [2024-11-09 06:55:53,733 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse2 (+ .cse1 3 |c_ULTIMATE.start_main_~#t_ids~0#1.offset|))) (let ((.cse0 (store |c_#race| |c_ULTIMATE.start_main_~#t_ids~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~#t_ids~0#1.base|) .cse2 |c_ULTIMATE.start_main_#t~nondet16#1|)))) (and (forall ((v_ArrVal_267 (Array Int Int))) (= (select (select (store .cse0 |c_~#global~0.base| v_ArrVal_267) |c_ULTIMATE.start_main_~#t_ids~0#1.base|) (+ .cse1 |c_ULTIMATE.start_main_~#t_ids~0#1.offset|)) |c_ULTIMATE.start_main_#t~nondet16#1|)) (forall ((v_ArrVal_267 (Array Int Int))) (= (select (select (store .cse0 |c_~#global~0.base| v_ArrVal_267) |c_ULTIMATE.start_main_~#t_ids~0#1.base|) (+ .cse1 2 |c_ULTIMATE.start_main_~#t_ids~0#1.offset|)) |c_ULTIMATE.start_main_#t~nondet16#1|)) (forall ((v_ArrVal_267 (Array Int Int))) (= (select (select (store .cse0 |c_~#global~0.base| v_ArrVal_267) |c_ULTIMATE.start_main_~#t_ids~0#1.base|) .cse2) |c_ULTIMATE.start_main_#t~nondet16#1|)) (forall ((v_ArrVal_267 (Array Int Int))) (= |c_ULTIMATE.start_main_#t~nondet16#1| (select (select (store .cse0 |c_~#global~0.base| v_ArrVal_267) |c_ULTIMATE.start_main_~#t_ids~0#1.base|) (+ .cse1 |c_ULTIMATE.start_main_~#t_ids~0#1.offset| 1)))))))) is different from false [2024-11-09 06:55:53,911 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:55:53,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 67 [2024-11-09 06:55:53,924 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:55:53,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 111 treesize of output 35 [2024-11-09 06:55:53,938 INFO L349 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2024-11-09 06:55:53,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 1 [2024-11-09 06:55:53,946 INFO L349 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2024-11-09 06:55:53,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 1 [2024-11-09 06:55:53,957 INFO L349 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2024-11-09 06:55:53,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 1 [2024-11-09 06:55:58,266 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 2 times theorem prover too weak. 6 trivial. 1 not checked. [2024-11-09 06:55:58,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150932491] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:55:58,266 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:55:58,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-11-09 06:55:58,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704349946] [2024-11-09 06:55:58,267 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:55:58,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-09 06:55:58,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:55:58,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-09 06:55:58,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=231, Unknown=15, NotChecked=102, Total=420 [2024-11-09 06:55:58,275 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 237 [2024-11-09 06:55:58,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 638 transitions, 4917 flow. Second operand has 21 states, 21 states have (on average 105.19047619047619) internal successors, (2209), 21 states have internal predecessors, (2209), 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) [2024-11-09 06:55:58,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:55:58,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 237 [2024-11-09 06:55:58,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:15,896 INFO L124 PetriNetUnfolderBase]: 56162/110833 cut-off events. [2024-11-09 06:56:15,897 INFO L125 PetriNetUnfolderBase]: For 148415/154460 co-relation queries the response was YES. [2024-11-09 06:56:16,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345393 conditions, 110833 events. 56162/110833 cut-off events. For 148415/154460 co-relation queries the response was YES. Maximal size of possible extension queue 1396. Compared 1115215 event pairs, 11945 based on Foata normal form. 2183/108048 useless extension candidates. Maximal degree in co-relation 302302. Up to 64432 conditions per place. [2024-11-09 06:56:17,154 INFO L140 encePairwiseOnDemand]: 194/237 looper letters, 428 selfloop transitions, 566 changer transitions 0/1072 dead transitions. [2024-11-09 06:56:17,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 1072 transitions, 9752 flow [2024-11-09 06:56:17,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 06:56:17,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 06:56:17,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1449 transitions. [2024-11-09 06:56:17,159 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6113924050632912 [2024-11-09 06:56:17,160 INFO L175 Difference]: Start difference. First operand has 207 places, 638 transitions, 4917 flow. Second operand 10 states and 1449 transitions. [2024-11-09 06:56:17,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 1072 transitions, 9752 flow [2024-11-09 06:56:18,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 1072 transitions, 9392 flow, removed 180 selfloop flow, removed 0 redundant places. [2024-11-09 06:56:18,816 INFO L231 Difference]: Finished difference. Result has 219 places, 883 transitions, 9170 flow [2024-11-09 06:56:18,817 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=4685, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=638, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=321, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=9170, PETRI_PLACES=219, PETRI_TRANSITIONS=883} [2024-11-09 06:56:18,818 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, -3 predicate places. [2024-11-09 06:56:18,819 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 883 transitions, 9170 flow [2024-11-09 06:56:18,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 105.19047619047619) internal successors, (2209), 21 states have internal predecessors, (2209), 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) [2024-11-09 06:56:18,820 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:18,820 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:18,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 06:56:19,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 06:56:19,021 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 06:56:19,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:19,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1879901099, now seen corresponding path program 2 times [2024-11-09 06:56:19,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:19,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359876714] [2024-11-09 06:56:19,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:19,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:19,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:19,474 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 06:56:19,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:19,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359876714] [2024-11-09 06:56:19,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359876714] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:56:19,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504376389] [2024-11-09 06:56:19,475 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:56:19,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:56:19,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:56:19,477 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:56:19,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 06:56:19,573 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:56:19,573 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:56:19,574 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 06:56:19,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:56:19,650 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-09 06:56:19,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-09 06:56:19,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-09 06:56:19,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-09 06:56:19,824 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:56:19,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-09 06:56:19,869 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:56:19,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-09 06:56:19,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45