./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_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_77-tricky_address4_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 dce9d71ca8bbe247a74e6b2653e5cdb882c6b8b5d902edf534df70d90ee806fe --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 06:57:07,793 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:57:07,844 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-09 06:57:07,848 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:57:07,849 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:57:07,878 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:57:07,878 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:57:07,879 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:57:07,880 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:57:07,881 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:57:07,881 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:57:07,882 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:57:07,882 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 06:57:07,883 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:57:07,884 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:57:07,884 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:57:07,884 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:57:07,884 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:57:07,885 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:57:07,885 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:57:07,885 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:57:07,888 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:57:07,888 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 06:57:07,889 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:57:07,889 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:57:07,889 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:57:07,889 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:57:07,890 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:57:07,890 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:57:07,890 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:57:07,890 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:57:07,890 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:57:07,891 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:57:07,891 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:57:07,891 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:57:07,891 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 06:57:07,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:57:07,892 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:57:07,892 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 06:57:07,892 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 06:57:07,893 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:57:07,893 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dce9d71ca8bbe247a74e6b2653e5cdb882c6b8b5d902edf534df70d90ee806fe [2024-11-09 06:57:08,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:57:08,161 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:57:08,164 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:57:08,165 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:57:08,166 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:57:08,166 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i [2024-11-09 06:57:09,725 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:57:09,977 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:57:09,978 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i [2024-11-09 06:57:09,998 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c4a47b72/3a6ecf28c12e46a49fbd96133e049813/FLAGbc7e38cba [2024-11-09 06:57:10,016 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c4a47b72/3a6ecf28c12e46a49fbd96133e049813 [2024-11-09 06:57:10,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:57:10,020 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:57:10,021 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:57:10,022 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:57:10,029 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:57:10,030 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:57:10" (1/1) ... [2024-11-09 06:57:10,033 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aea2d5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:57:10, skipping insertion in model container [2024-11-09 06:57:10,033 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:57:10" (1/1) ... [2024-11-09 06:57:10,090 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:57:10,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:57:10,703 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:57:10,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:57:10,847 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:57:10,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:57:10 WrapperNode [2024-11-09 06:57:10,848 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:57:10,849 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:57:10,850 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:57:10,850 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:57:10,857 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:57:10" (1/1) ... [2024-11-09 06:57:10,886 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:57:10" (1/1) ... [2024-11-09 06:57:10,929 INFO L138 Inliner]: procedures = 271, calls = 110, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 348 [2024-11-09 06:57:10,930 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:57:10,930 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:57:10,930 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:57:10,931 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:57:10,940 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:57:10" (1/1) ... [2024-11-09 06:57:10,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:57:10" (1/1) ... [2024-11-09 06:57:10,947 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:57:10" (1/1) ... [2024-11-09 06:57:10,951 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:57:10" (1/1) ... [2024-11-09 06:57:10,967 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:57:10" (1/1) ... [2024-11-09 06:57:10,975 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:57:10" (1/1) ... [2024-11-09 06:57:10,978 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:57:10" (1/1) ... [2024-11-09 06:57:10,980 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:57:10" (1/1) ... [2024-11-09 06:57:10,988 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:57:10,989 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:57:10,989 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:57:10,989 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:57:10,989 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:57:10" (1/1) ... [2024-11-09 06:57:11,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:57:11,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:57:11,030 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 06:57:11,036 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 06:57:11,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:57:11,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:57:11,075 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 06:57:11,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:57:11,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:57:11,075 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 06:57:11,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:57:11,076 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-09 06:57:11,076 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-09 06:57:11,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:57:11,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:57:11,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:57:11,078 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 06:57:11,219 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:57:11,225 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:57:11,845 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 06:57:11,848 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:57:11,901 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:57:11,903 INFO L316 CfgBuilder]: Removed 23 assume(true) statements. [2024-11-09 06:57:11,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:57:11 BoogieIcfgContainer [2024-11-09 06:57:11,905 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:57:11,907 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:57:11,908 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:57:11,912 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:57:11,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:57:10" (1/3) ... [2024-11-09 06:57:11,913 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61cb61fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:57:11, skipping insertion in model container [2024-11-09 06:57:11,913 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:57:10" (2/3) ... [2024-11-09 06:57:11,913 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61cb61fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:57:11, skipping insertion in model container [2024-11-09 06:57:11,913 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:57:11" (3/3) ... [2024-11-09 06:57:11,915 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_77-tricky_address4_racing.i [2024-11-09 06:57:11,932 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:57:11,933 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-09 06:57:11,933 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 06:57:12,048 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 06:57:12,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 324 places, 354 transitions, 715 flow [2024-11-09 06:57:12,381 INFO L124 PetriNetUnfolderBase]: 48/483 cut-off events. [2024-11-09 06:57:12,382 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 06:57:12,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 488 conditions, 483 events. 48/483 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1659 event pairs, 0 based on Foata normal form. 0/413 useless extension candidates. Maximal degree in co-relation 248. Up to 8 conditions per place. [2024-11-09 06:57:12,394 INFO L82 GeneralOperation]: Start removeDead. Operand has 324 places, 354 transitions, 715 flow [2024-11-09 06:57:12,404 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 324 places, 354 transitions, 715 flow [2024-11-09 06:57:12,417 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:57:12,425 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;@53d15793, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:57:12,426 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-09 06:57:12,450 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:57:12,452 INFO L124 PetriNetUnfolderBase]: 8/133 cut-off events. [2024-11-09 06:57:12,452 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:57:12,452 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:57:12,453 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:57:12,454 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-09 06:57:12,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:57:12,460 INFO L85 PathProgramCache]: Analyzing trace with hash 709230511, now seen corresponding path program 1 times [2024-11-09 06:57:12,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:57:12,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554235606] [2024-11-09 06:57:12,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:12,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:57:12,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:12,957 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 06:57:12,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:57:12,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554235606] [2024-11-09 06:57:12,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554235606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:57:12,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:57:12,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:57:12,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356471527] [2024-11-09 06:57:12,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:57:12,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:57:12,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:57:12,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:57:12,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:57:13,024 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 354 [2024-11-09 06:57:13,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 354 transitions, 715 flow. Second operand has 3 states, 3 states have (on average 300.3333333333333) internal successors, (901), 3 states have internal predecessors, (901), 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 06:57:13,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:57:13,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 354 [2024-11-09 06:57:13,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:57:13,389 INFO L124 PetriNetUnfolderBase]: 85/1310 cut-off events. [2024-11-09 06:57:13,390 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-09 06:57:13,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1494 conditions, 1310 events. 85/1310 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8317 event pairs, 72 based on Foata normal form. 205/1399 useless extension candidates. Maximal degree in co-relation 1250. Up to 178 conditions per place. [2024-11-09 06:57:13,405 INFO L140 encePairwiseOnDemand]: 322/354 looper letters, 23 selfloop transitions, 2 changer transitions 1/322 dead transitions. [2024-11-09 06:57:13,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 322 transitions, 701 flow [2024-11-09 06:57:13,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:57:13,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:57:13,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 953 transitions. [2024-11-09 06:57:13,427 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8973634651600754 [2024-11-09 06:57:13,429 INFO L175 Difference]: Start difference. First operand has 324 places, 354 transitions, 715 flow. Second operand 3 states and 953 transitions. [2024-11-09 06:57:13,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 322 transitions, 701 flow [2024-11-09 06:57:13,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 322 transitions, 701 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:57:13,447 INFO L231 Difference]: Finished difference. Result has 323 places, 321 transitions, 659 flow [2024-11-09 06:57:13,449 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=649, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=659, PETRI_PLACES=323, PETRI_TRANSITIONS=321} [2024-11-09 06:57:13,456 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, -1 predicate places. [2024-11-09 06:57:13,456 INFO L471 AbstractCegarLoop]: Abstraction has has 323 places, 321 transitions, 659 flow [2024-11-09 06:57:13,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 300.3333333333333) internal successors, (901), 3 states have internal predecessors, (901), 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 06:57:13,457 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:57:13,458 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:57:13,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:57:13,459 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-09 06:57:13,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:57:13,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1439344414, now seen corresponding path program 1 times [2024-11-09 06:57:13,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:57:13,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334504039] [2024-11-09 06:57:13,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:13,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:57:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:13,703 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 06:57:13,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:57:13,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334504039] [2024-11-09 06:57:13,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334504039] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:57:13,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756120465] [2024-11-09 06:57:13,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:13,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:57:13,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:57:13,712 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 06:57:13,721 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 06:57:13,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:13,854 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:57:13,861 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:57:13,953 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 06:57:13,955 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:57:14,001 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 06:57:14,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756120465] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:57:14,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:57:14,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-09 06:57:14,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454997745] [2024-11-09 06:57:14,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:57:14,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:57:14,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:57:14,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:57:14,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:57:14,034 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 354 [2024-11-09 06:57:14,037 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 321 transitions, 659 flow. Second operand has 10 states, 10 states have (on average 297.8) internal successors, (2978), 10 states have internal predecessors, (2978), 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 06:57:14,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:57:14,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 354 [2024-11-09 06:57:14,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:57:14,407 INFO L124 PetriNetUnfolderBase]: 85/1316 cut-off events. [2024-11-09 06:57:14,408 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-09 06:57:14,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1519 conditions, 1316 events. 85/1316 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8311 event pairs, 72 based on Foata normal form. 2/1203 useless extension candidates. Maximal degree in co-relation 1424. Up to 178 conditions per place. [2024-11-09 06:57:14,416 INFO L140 encePairwiseOnDemand]: 348/354 looper letters, 27 selfloop transitions, 9 changer transitions 0/329 dead transitions. [2024-11-09 06:57:14,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 329 transitions, 749 flow [2024-11-09 06:57:14,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:57:14,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:57:14,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2702 transitions. [2024-11-09 06:57:14,422 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8480853735091023 [2024-11-09 06:57:14,422 INFO L175 Difference]: Start difference. First operand has 323 places, 321 transitions, 659 flow. Second operand 9 states and 2702 transitions. [2024-11-09 06:57:14,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 329 transitions, 749 flow [2024-11-09 06:57:14,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 329 transitions, 747 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 06:57:14,433 INFO L231 Difference]: Finished difference. Result has 332 places, 327 transitions, 707 flow [2024-11-09 06:57:14,433 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=657, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=707, PETRI_PLACES=332, PETRI_TRANSITIONS=327} [2024-11-09 06:57:14,434 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 8 predicate places. [2024-11-09 06:57:14,434 INFO L471 AbstractCegarLoop]: Abstraction has has 332 places, 327 transitions, 707 flow [2024-11-09 06:57:14,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 297.8) internal successors, (2978), 10 states have internal predecessors, (2978), 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 06:57:14,437 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:57:14,437 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:57:14,457 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 06:57:14,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:57:14,639 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-09 06:57:14,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:57:14,639 INFO L85 PathProgramCache]: Analyzing trace with hash -909527618, now seen corresponding path program 2 times [2024-11-09 06:57:14,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:57:14,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780266808] [2024-11-09 06:57:14,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:14,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:57:14,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:14,884 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:57:14,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:57:14,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780266808] [2024-11-09 06:57:14,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780266808] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:57:14,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053664758] [2024-11-09 06:57:14,885 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:57:14,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:57:14,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:57:14,890 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 06:57:14,891 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 06:57:15,007 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:57:15,007 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:57:15,011 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 06:57:15,015 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:57:15,106 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 06:57:15,139 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 19 treesize of output 18 [2024-11-09 06:57:15,193 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:57:15,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-11-09 06:57:15,254 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:57:15,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-11-09 06:57:15,295 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 06:57:15,295 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:57:15,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053664758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:57:15,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:57:15,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-09 06:57:15,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840773474] [2024-11-09 06:57:15,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:57:15,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:57:15,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:57:15,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:57:15,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-09 06:57:15,727 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 354 [2024-11-09 06:57:15,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 327 transitions, 707 flow. Second operand has 8 states, 8 states have (on average 247.125) internal successors, (1977), 8 states have internal predecessors, (1977), 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 06:57:15,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:57:15,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 354 [2024-11-09 06:57:15,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:57:16,646 INFO L124 PetriNetUnfolderBase]: 1305/5058 cut-off events. [2024-11-09 06:57:16,647 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-09 06:57:16,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7680 conditions, 5058 events. 1305/5058 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 44532 event pairs, 1148 based on Foata normal form. 1/4592 useless extension candidates. Maximal degree in co-relation 7556. Up to 2434 conditions per place. [2024-11-09 06:57:16,675 INFO L140 encePairwiseOnDemand]: 342/354 looper letters, 127 selfloop transitions, 11 changer transitions 2/390 dead transitions. [2024-11-09 06:57:16,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 390 transitions, 1113 flow [2024-11-09 06:57:16,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:57:16,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 06:57:16,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2110 transitions. [2024-11-09 06:57:16,682 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7450564971751412 [2024-11-09 06:57:16,682 INFO L175 Difference]: Start difference. First operand has 332 places, 327 transitions, 707 flow. Second operand 8 states and 2110 transitions. [2024-11-09 06:57:16,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 390 transitions, 1113 flow [2024-11-09 06:57:16,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 390 transitions, 1107 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-09 06:57:16,690 INFO L231 Difference]: Finished difference. Result has 343 places, 334 transitions, 768 flow [2024-11-09 06:57:16,691 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=701, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=768, PETRI_PLACES=343, PETRI_TRANSITIONS=334} [2024-11-09 06:57:16,692 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 19 predicate places. [2024-11-09 06:57:16,693 INFO L471 AbstractCegarLoop]: Abstraction has has 343 places, 334 transitions, 768 flow [2024-11-09 06:57:16,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 247.125) internal successors, (1977), 8 states have internal predecessors, (1977), 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 06:57:16,695 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:57:16,696 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:57:16,710 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 06:57:16,898 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,SelfDestructingSolverStorable2 [2024-11-09 06:57:16,899 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-09 06:57:16,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:57:16,900 INFO L85 PathProgramCache]: Analyzing trace with hash 181443847, now seen corresponding path program 1 times [2024-11-09 06:57:16,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:57:16,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735154386] [2024-11-09 06:57:16,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:16,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:57:16,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:17,124 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 06:57:17,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:57:17,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735154386] [2024-11-09 06:57:17,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735154386] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:57:17,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904349181] [2024-11-09 06:57:17,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:17,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:57:17,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:57:17,129 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 06:57:17,130 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 06:57:17,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:17,242 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:57:17,245 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:57:17,289 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 06:57:17,289 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:57:17,395 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 06:57:17,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904349181] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:57:17,396 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:57:17,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-09 06:57:17,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417168579] [2024-11-09 06:57:17,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:57:17,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 06:57:17,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:57:17,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 06:57:17,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-09 06:57:17,429 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 354 [2024-11-09 06:57:17,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 334 transitions, 768 flow. Second operand has 18 states, 18 states have (on average 297.94444444444446) internal successors, (5363), 18 states have internal predecessors, (5363), 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 06:57:17,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:57:17,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 354 [2024-11-09 06:57:17,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:57:17,848 INFO L124 PetriNetUnfolderBase]: 88/1325 cut-off events. [2024-11-09 06:57:17,848 INFO L125 PetriNetUnfolderBase]: For 30/34 co-relation queries the response was YES. [2024-11-09 06:57:17,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1631 conditions, 1325 events. 88/1325 cut-off events. For 30/34 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8486 event pairs, 74 based on Foata normal form. 4/1218 useless extension candidates. Maximal degree in co-relation 1430. Up to 175 conditions per place. [2024-11-09 06:57:17,861 INFO L140 encePairwiseOnDemand]: 348/354 looper letters, 31 selfloop transitions, 21 changer transitions 0/352 dead transitions. [2024-11-09 06:57:17,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 352 transitions, 960 flow [2024-11-09 06:57:17,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 06:57:17,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-09 06:57:17,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6272 transitions. [2024-11-09 06:57:17,873 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8436911487758946 [2024-11-09 06:57:17,873 INFO L175 Difference]: Start difference. First operand has 343 places, 334 transitions, 768 flow. Second operand 21 states and 6272 transitions. [2024-11-09 06:57:17,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 352 transitions, 960 flow [2024-11-09 06:57:17,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 352 transitions, 953 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 06:57:17,881 INFO L231 Difference]: Finished difference. Result has 366 places, 347 transitions, 891 flow [2024-11-09 06:57:17,882 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=761, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=891, PETRI_PLACES=366, PETRI_TRANSITIONS=347} [2024-11-09 06:57:17,882 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 42 predicate places. [2024-11-09 06:57:17,883 INFO L471 AbstractCegarLoop]: Abstraction has has 366 places, 347 transitions, 891 flow [2024-11-09 06:57:17,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 297.94444444444446) internal successors, (5363), 18 states have internal predecessors, (5363), 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 06:57:17,886 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:57:17,887 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:57:17,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 06:57:18,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:57:18,088 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-09 06:57:18,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:57:18,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1248408135, now seen corresponding path program 2 times [2024-11-09 06:57:18,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:57:18,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844715392] [2024-11-09 06:57:18,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:18,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:57:18,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:18,522 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 06:57:18,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:57:18,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844715392] [2024-11-09 06:57:18,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844715392] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:57:18,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039317676] [2024-11-09 06:57:18,524 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:57:18,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:57:18,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:57:18,528 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:57:18,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 06:57:18,634 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:57:18,635 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:57:18,636 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 06:57:18,640 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:57:18,651 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-09 06:57:18,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 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 06:57:18,704 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:57:18,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 40 treesize of output 42 [2024-11-09 06:57:18,748 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:57:18,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 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 06:57:18,785 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-09 06:57:18,785 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:57:18,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039317676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:57:18,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:57:18,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-09 06:57:18,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872624343] [2024-11-09 06:57:18,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:57:18,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:57:18,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:57:18,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:57:18,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-09 06:57:19,046 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 354 [2024-11-09 06:57:19,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 347 transitions, 891 flow. Second operand has 6 states, 6 states have (on average 249.66666666666666) internal successors, (1498), 6 states have internal predecessors, (1498), 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 06:57:19,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:57:19,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 354 [2024-11-09 06:57:19,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:57:20,141 INFO L124 PetriNetUnfolderBase]: 1362/5146 cut-off events. [2024-11-09 06:57:20,142 INFO L125 PetriNetUnfolderBase]: For 281/285 co-relation queries the response was YES. [2024-11-09 06:57:20,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8333 conditions, 5146 events. 1362/5146 cut-off events. For 281/285 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 45156 event pairs, 911 based on Foata normal form. 33/4764 useless extension candidates. Maximal degree in co-relation 8125. Up to 2520 conditions per place. [2024-11-09 06:57:20,179 INFO L140 encePairwiseOnDemand]: 327/354 looper letters, 107 selfloop transitions, 92 changer transitions 0/463 dead transitions. [2024-11-09 06:57:20,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 463 transitions, 1543 flow [2024-11-09 06:57:20,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:57:20,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:57:20,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1676 transitions. [2024-11-09 06:57:20,184 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7890772128060264 [2024-11-09 06:57:20,184 INFO L175 Difference]: Start difference. First operand has 366 places, 347 transitions, 891 flow. Second operand 6 states and 1676 transitions. [2024-11-09 06:57:20,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 463 transitions, 1543 flow [2024-11-09 06:57:20,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 463 transitions, 1519 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-09 06:57:20,196 INFO L231 Difference]: Finished difference. Result has 370 places, 431 transitions, 1475 flow [2024-11-09 06:57:20,197 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=867, PETRI_DIFFERENCE_MINUEND_PLACES=360, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1475, PETRI_PLACES=370, PETRI_TRANSITIONS=431} [2024-11-09 06:57:20,198 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 46 predicate places. [2024-11-09 06:57:20,198 INFO L471 AbstractCegarLoop]: Abstraction has has 370 places, 431 transitions, 1475 flow [2024-11-09 06:57:20,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 249.66666666666666) internal successors, (1498), 6 states have internal predecessors, (1498), 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 06:57:20,199 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:57:20,200 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:57:20,219 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 06:57:20,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:57:20,404 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-09 06:57:20,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:57:20,406 INFO L85 PathProgramCache]: Analyzing trace with hash 45947571, now seen corresponding path program 1 times [2024-11-09 06:57:20,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:57:20,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594639431] [2024-11-09 06:57:20,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:20,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:57:20,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:20,928 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 06:57:20,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:57:20,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594639431] [2024-11-09 06:57:20,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594639431] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:57:20,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339385597] [2024-11-09 06:57:20,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:20,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:57:20,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:57:20,931 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:57:20,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 06:57:21,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:21,056 INFO L255 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 06:57:21,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:57:21,145 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 06:57:21,146 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:57:21,348 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 06:57:21,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [339385597] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:57:21,348 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:57:21,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-09 06:57:21,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097666848] [2024-11-09 06:57:21,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:57:21,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 06:57:21,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:57:21,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 06:57:21,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-09 06:57:21,384 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 354 [2024-11-09 06:57:21,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 431 transitions, 1475 flow. Second operand has 23 states, 23 states have (on average 298.04347826086956) internal successors, (6855), 23 states have internal predecessors, (6855), 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 06:57:21,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:57:21,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 354 [2024-11-09 06:57:21,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:57:22,011 INFO L124 PetriNetUnfolderBase]: 240/1956 cut-off events. [2024-11-09 06:57:22,011 INFO L125 PetriNetUnfolderBase]: For 500/562 co-relation queries the response was YES. [2024-11-09 06:57:22,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3091 conditions, 1956 events. 240/1956 cut-off events. For 500/562 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 14313 event pairs, 72 based on Foata normal form. 3/1818 useless extension candidates. Maximal degree in co-relation 2803. Up to 232 conditions per place. [2024-11-09 06:57:22,029 INFO L140 encePairwiseOnDemand]: 348/354 looper letters, 34 selfloop transitions, 30 changer transitions 0/448 dead transitions. [2024-11-09 06:57:22,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 448 transitions, 1725 flow [2024-11-09 06:57:22,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-09 06:57:22,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-09 06:57:22,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 8947 transitions. [2024-11-09 06:57:22,045 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.842467043314501 [2024-11-09 06:57:22,045 INFO L175 Difference]: Start difference. First operand has 370 places, 431 transitions, 1475 flow. Second operand 30 states and 8947 transitions. [2024-11-09 06:57:22,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 448 transitions, 1725 flow [2024-11-09 06:57:22,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 448 transitions, 1707 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-09 06:57:22,058 INFO L231 Difference]: Finished difference. Result has 403 places, 441 transitions, 1609 flow [2024-11-09 06:57:22,059 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=1457, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1609, PETRI_PLACES=403, PETRI_TRANSITIONS=441} [2024-11-09 06:57:22,060 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 79 predicate places. [2024-11-09 06:57:22,060 INFO L471 AbstractCegarLoop]: Abstraction has has 403 places, 441 transitions, 1609 flow [2024-11-09 06:57:22,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 298.04347826086956) internal successors, (6855), 23 states have internal predecessors, (6855), 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 06:57:22,063 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:57:22,063 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:57:22,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 06:57:22,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:57:22,265 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-09 06:57:22,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:57:22,266 INFO L85 PathProgramCache]: Analyzing trace with hash -137490686, now seen corresponding path program 2 times [2024-11-09 06:57:22,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:57:22,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869647648] [2024-11-09 06:57:22,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:22,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:57:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:57:22,313 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:57:22,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:57:22,395 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 06:57:22,395 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:57:22,396 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-09 06:57:22,398 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-09 06:57:22,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-09 06:57:22,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-09 06:57:22,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-09 06:57:22,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-09 06:57:22,399 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-09 06:57:22,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-09 06:57:22,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-09 06:57:22,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-09 06:57:22,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-09 06:57:22,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-09 06:57:22,400 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-09 06:57:22,401 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-09 06:57:22,401 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-09 06:57:22,401 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-09 06:57:22,416 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-09 06:57:22,416 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-09 06:57:22,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 06:57:22,417 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1] [2024-11-09 06:57:22,420 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 06:57:22,420 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-09 06:57:22,490 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 06:57:22,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 429 places, 472 transitions, 960 flow [2024-11-09 06:57:22,657 INFO L124 PetriNetUnfolderBase]: 80/758 cut-off events. [2024-11-09 06:57:22,657 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2024-11-09 06:57:22,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 770 conditions, 758 events. 80/758 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3374 event pairs, 0 based on Foata normal form. 0/642 useless extension candidates. Maximal degree in co-relation 485. Up to 12 conditions per place. [2024-11-09 06:57:22,672 INFO L82 GeneralOperation]: Start removeDead. Operand has 429 places, 472 transitions, 960 flow [2024-11-09 06:57:22,687 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 429 places, 472 transitions, 960 flow [2024-11-09 06:57:22,689 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:57:22,692 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;@53d15793, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:57:22,692 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-09 06:57:22,705 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:57:22,705 INFO L124 PetriNetUnfolderBase]: 8/133 cut-off events. [2024-11-09 06:57:22,705 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:57:22,705 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:57:22,706 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:57:22,706 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-09 06:57:22,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:57:22,706 INFO L85 PathProgramCache]: Analyzing trace with hash 175079599, now seen corresponding path program 1 times [2024-11-09 06:57:22,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:57:22,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993984634] [2024-11-09 06:57:22,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:22,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:57:22,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:22,781 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 06:57:22,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:57:22,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993984634] [2024-11-09 06:57:22,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993984634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:57:22,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:57:22,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:57:22,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757540521] [2024-11-09 06:57:22,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:57:22,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:57:22,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:57:22,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:57:22,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:57:22,799 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 393 out of 472 [2024-11-09 06:57:22,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 472 transitions, 960 flow. Second operand has 3 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 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 06:57:22,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:57:22,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 393 of 472 [2024-11-09 06:57:22,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:57:25,196 INFO L124 PetriNetUnfolderBase]: 1580/11913 cut-off events. [2024-11-09 06:57:25,197 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2024-11-09 06:57:25,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14374 conditions, 11913 events. 1580/11913 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 142637 event pairs, 1464 based on Foata normal form. 2927/13935 useless extension candidates. Maximal degree in co-relation 12718. Up to 2408 conditions per place. [2024-11-09 06:57:25,294 INFO L140 encePairwiseOnDemand]: 427/472 looper letters, 33 selfloop transitions, 2 changer transitions 1/425 dead transitions. [2024-11-09 06:57:25,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 425 transitions, 936 flow [2024-11-09 06:57:25,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:57:25,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:57:25,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1258 transitions. [2024-11-09 06:57:25,298 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8884180790960452 [2024-11-09 06:57:25,298 INFO L175 Difference]: Start difference. First operand has 429 places, 472 transitions, 960 flow. Second operand 3 states and 1258 transitions. [2024-11-09 06:57:25,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 425 transitions, 936 flow [2024-11-09 06:57:25,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 425 transitions, 936 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:57:25,305 INFO L231 Difference]: Finished difference. Result has 426 places, 424 transitions, 874 flow [2024-11-09 06:57:25,306 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=864, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=874, PETRI_PLACES=426, PETRI_TRANSITIONS=424} [2024-11-09 06:57:25,308 INFO L277 CegarLoopForPetriNet]: 429 programPoint places, -3 predicate places. [2024-11-09 06:57:25,308 INFO L471 AbstractCegarLoop]: Abstraction has has 426 places, 424 transitions, 874 flow [2024-11-09 06:57:25,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 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 06:57:25,309 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:57:25,309 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:57:25,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 06:57:25,309 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-09 06:57:25,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:57:25,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1665323510, now seen corresponding path program 1 times [2024-11-09 06:57:25,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:57:25,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121900516] [2024-11-09 06:57:25,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:25,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:57:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:25,397 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 06:57:25,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:57:25,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121900516] [2024-11-09 06:57:25,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121900516] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:57:25,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531000219] [2024-11-09 06:57:25,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:25,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:57:25,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:57:25,401 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:57:25,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 06:57:25,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:25,507 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:57:25,509 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:57:25,532 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 06:57:25,532 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:57:25,563 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 06:57:25,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531000219] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:57:25,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:57:25,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-09 06:57:25,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784725697] [2024-11-09 06:57:25,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:57:25,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:57:25,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:57:25,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:57:25,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:57:25,589 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 472 [2024-11-09 06:57:25,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 424 transitions, 874 flow. Second operand has 10 states, 10 states have (on average 391.8) internal successors, (3918), 10 states have internal predecessors, (3918), 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 06:57:25,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:57:25,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 472 [2024-11-09 06:57:25,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:57:27,356 INFO L124 PetriNetUnfolderBase]: 1580/11919 cut-off events. [2024-11-09 06:57:27,356 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2024-11-09 06:57:27,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14399 conditions, 11919 events. 1580/11919 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 142579 event pairs, 1464 based on Foata normal form. 2/11017 useless extension candidates. Maximal degree in co-relation 14303. Up to 2408 conditions per place. [2024-11-09 06:57:27,575 INFO L140 encePairwiseOnDemand]: 466/472 looper letters, 37 selfloop transitions, 9 changer transitions 0/432 dead transitions. [2024-11-09 06:57:27,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 432 transitions, 984 flow [2024-11-09 06:57:27,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:57:27,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:57:27,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3558 transitions. [2024-11-09 06:57:27,586 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8375706214689266 [2024-11-09 06:57:27,587 INFO L175 Difference]: Start difference. First operand has 426 places, 424 transitions, 874 flow. Second operand 9 states and 3558 transitions. [2024-11-09 06:57:27,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 432 transitions, 984 flow [2024-11-09 06:57:27,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 432 transitions, 982 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 06:57:27,597 INFO L231 Difference]: Finished difference. Result has 435 places, 430 transitions, 922 flow [2024-11-09 06:57:27,598 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=872, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=922, PETRI_PLACES=435, PETRI_TRANSITIONS=430} [2024-11-09 06:57:27,600 INFO L277 CegarLoopForPetriNet]: 429 programPoint places, 6 predicate places. [2024-11-09 06:57:27,602 INFO L471 AbstractCegarLoop]: Abstraction has has 435 places, 430 transitions, 922 flow [2024-11-09 06:57:27,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 391.8) internal successors, (3918), 10 states have internal predecessors, (3918), 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 06:57:27,604 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:57:27,604 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:57:27,623 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 06:57:27,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:57:27,806 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-09 06:57:27,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:57:27,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1659774570, now seen corresponding path program 2 times [2024-11-09 06:57:27,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:57:27,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026271969] [2024-11-09 06:57:27,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:27,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:57:27,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:27,976 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:57:27,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:57:27,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026271969] [2024-11-09 06:57:27,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026271969] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:57:27,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793901261] [2024-11-09 06:57:27,978 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:57:27,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:57:27,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:57:27,980 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:57:27,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 06:57:28,105 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:57:28,106 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:57:28,108 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 06:57:28,111 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:57:28,170 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 06:57:28,198 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 19 treesize of output 18 [2024-11-09 06:57:28,236 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:57:28,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-11-09 06:57:28,284 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:57:28,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-11-09 06:57:28,320 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 06:57:28,321 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:57:28,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793901261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:57:28,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:57:28,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-11-09 06:57:28,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413579945] [2024-11-09 06:57:28,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:57:28,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:57:28,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:57:28,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:57:28,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-09 06:57:28,717 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 320 out of 472 [2024-11-09 06:57:28,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 430 transitions, 922 flow. Second operand has 8 states, 8 states have (on average 321.125) internal successors, (2569), 8 states have internal predecessors, (2569), 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 06:57:28,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:57:28,721 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 320 of 472 [2024-11-09 06:57:28,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:57:57,084 INFO L124 PetriNetUnfolderBase]: 77253/188861 cut-off events. [2024-11-09 06:57:57,084 INFO L125 PetriNetUnfolderBase]: For 296/296 co-relation queries the response was YES. [2024-11-09 06:57:57,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304597 conditions, 188861 events. 77253/188861 cut-off events. For 296/296 co-relation queries the response was YES. Maximal size of possible extension queue 3719. Compared 2541727 event pairs, 70336 based on Foata normal form. 1/174164 useless extension candidates. Maximal degree in co-relation 304472. Up to 110272 conditions per place. [2024-11-09 06:57:58,580 INFO L140 encePairwiseOnDemand]: 460/472 looper letters, 188 selfloop transitions, 11 changer transitions 0/522 dead transitions. [2024-11-09 06:57:58,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 522 transitions, 1504 flow [2024-11-09 06:57:58,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:57:58,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 06:57:58,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2761 transitions. [2024-11-09 06:57:58,586 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.731197033898305 [2024-11-09 06:57:58,586 INFO L175 Difference]: Start difference. First operand has 435 places, 430 transitions, 922 flow. Second operand 8 states and 2761 transitions. [2024-11-09 06:57:58,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 522 transitions, 1504 flow [2024-11-09 06:57:58,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 522 transitions, 1498 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-09 06:57:58,595 INFO L231 Difference]: Finished difference. Result has 446 places, 438 transitions, 987 flow [2024-11-09 06:57:58,596 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=916, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=987, PETRI_PLACES=446, PETRI_TRANSITIONS=438} [2024-11-09 06:57:58,596 INFO L277 CegarLoopForPetriNet]: 429 programPoint places, 17 predicate places. [2024-11-09 06:57:58,597 INFO L471 AbstractCegarLoop]: Abstraction has has 446 places, 438 transitions, 987 flow [2024-11-09 06:57:58,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 321.125) internal successors, (2569), 8 states have internal predecessors, (2569), 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 06:57:58,598 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:57:58,599 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:57:58,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-09 06:57:58,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:57:58,800 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-09 06:57:58,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:57:58,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1502060565, now seen corresponding path program 1 times [2024-11-09 06:57:58,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:57:58,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483225449] [2024-11-09 06:57:58,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:58,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:57:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:58,966 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 06:57:58,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:57:58,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483225449] [2024-11-09 06:57:58,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483225449] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:57:58,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795150885] [2024-11-09 06:57:58,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:58,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:57:58,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:57:58,969 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:57:58,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 06:57:59,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:59,100 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:57:59,102 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:57:59,148 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 06:57:59,148 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:57:59,234 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 06:57:59,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795150885] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:57:59,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:57:59,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-09 06:57:59,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285474630] [2024-11-09 06:57:59,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:57:59,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 06:57:59,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:57:59,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 06:57:59,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-09 06:57:59,271 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 472 [2024-11-09 06:57:59,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 438 transitions, 987 flow. Second operand has 18 states, 18 states have (on average 391.94444444444446) internal successors, (7055), 18 states have internal predecessors, (7055), 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 06:57:59,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:57:59,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 472 [2024-11-09 06:57:59,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:58:00,972 INFO L124 PetriNetUnfolderBase]: 1611/12171 cut-off events. [2024-11-09 06:58:00,972 INFO L125 PetriNetUnfolderBase]: For 115/119 co-relation queries the response was YES. [2024-11-09 06:58:01,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15023 conditions, 12171 events. 1611/12171 cut-off events. For 115/119 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 146958 event pairs, 1492 based on Foata normal form. 4/11242 useless extension candidates. Maximal degree in co-relation 14821. Up to 2431 conditions per place. [2024-11-09 06:58:01,075 INFO L140 encePairwiseOnDemand]: 466/472 looper letters, 41 selfloop transitions, 21 changer transitions 0/456 dead transitions. [2024-11-09 06:58:01,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 456 transitions, 1199 flow [2024-11-09 06:58:01,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 06:58:01,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-09 06:58:01,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 8256 transitions. [2024-11-09 06:58:01,090 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8329297820823245 [2024-11-09 06:58:01,090 INFO L175 Difference]: Start difference. First operand has 446 places, 438 transitions, 987 flow. Second operand 21 states and 8256 transitions. [2024-11-09 06:58:01,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 456 transitions, 1199 flow [2024-11-09 06:58:01,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 456 transitions, 1197 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 06:58:01,101 INFO L231 Difference]: Finished difference. Result has 470 places, 451 transitions, 1115 flow [2024-11-09 06:58:01,103 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=985, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1115, PETRI_PLACES=470, PETRI_TRANSITIONS=451} [2024-11-09 06:58:01,103 INFO L277 CegarLoopForPetriNet]: 429 programPoint places, 41 predicate places. [2024-11-09 06:58:01,104 INFO L471 AbstractCegarLoop]: Abstraction has has 470 places, 451 transitions, 1115 flow [2024-11-09 06:58:01,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 391.94444444444446) internal successors, (7055), 18 states have internal predecessors, (7055), 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 06:58:01,107 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:58:01,107 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:58:01,123 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 06:58:01,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 06:58:01,308 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-09 06:58:01,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:58:01,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1314367275, now seen corresponding path program 2 times [2024-11-09 06:58:01,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:58:01,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70241130] [2024-11-09 06:58:01,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:58:01,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:58:01,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:58:01,665 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 06:58:01,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:58:01,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70241130] [2024-11-09 06:58:01,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70241130] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:58:01,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424753449] [2024-11-09 06:58:01,665 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:58:01,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:58:01,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:58:01,667 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:58:01,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 06:58:01,791 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:58:01,791 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:58:01,793 INFO L255 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 06:58:01,797 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:58:01,804 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-09 06:58:01,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 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 06:58:01,858 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:58:01,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 40 treesize of output 42 [2024-11-09 06:58:01,893 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:58:01,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 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 06:58:01,935 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-09 06:58:01,936 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:58:01,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424753449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:58:01,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:58:01,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-09 06:58:01,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913326217] [2024-11-09 06:58:01,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:58:01,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:58:01,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:58:01,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:58:01,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-09 06:58:02,210 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 472 [2024-11-09 06:58:02,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 451 transitions, 1115 flow. Second operand has 6 states, 6 states have (on average 323.6666666666667) internal successors, (1942), 6 states have internal predecessors, (1942), 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 06:58:02,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:58:02,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 472 [2024-11-09 06:58:02,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand