./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_73-funloop_hard_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_73-funloop_hard_racefree.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 c8af2e9e80aefb6a93651d6c869df13510f679bd9566c8571973545c9393aab5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:54:40,866 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:54:40,930 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 09:54:40,934 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:54:40,935 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:54:40,964 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:54:40,965 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:54:40,965 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:54:40,966 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:54:40,966 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:54:40,967 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:54:40,967 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:54:40,967 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:54:40,968 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:54:40,968 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:54:40,968 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:54:40,969 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:54:40,973 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:54:40,973 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:54:40,973 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:54:40,973 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:54:40,974 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:54:40,976 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 09:54:40,976 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:54:40,976 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 09:54:40,976 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:54:40,977 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:54:40,977 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:54:40,977 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:54:40,977 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:54:40,978 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:54:40,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:54:40,978 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:54:40,978 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:54:40,979 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:54:40,979 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:54:40,979 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:54:40,980 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:54:40,981 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:54:40,981 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:54:40,981 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:54:40,981 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8af2e9e80aefb6a93651d6c869df13510f679bd9566c8571973545c9393aab5 [2024-10-13 09:54:41,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:54:41,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:54:41,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:54:41,266 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:54:41,267 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:54:41,268 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_73-funloop_hard_racefree.i [2024-10-13 09:54:42,758 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:54:43,038 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:54:43,039 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_73-funloop_hard_racefree.i [2024-10-13 09:54:43,063 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43f6d00b1/ab9c9a9e265240c79b28edf5264ad1be/FLAG83ad75370 [2024-10-13 09:54:43,079 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43f6d00b1/ab9c9a9e265240c79b28edf5264ad1be [2024-10-13 09:54:43,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:54:43,085 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:54:43,087 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:54:43,088 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:54:43,093 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:54:43,094 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:54:43" (1/1) ... [2024-10-13 09:54:43,095 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dbef498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:43, skipping insertion in model container [2024-10-13 09:54:43,095 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:54:43" (1/1) ... [2024-10-13 09:54:43,146 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:54:43,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:54:43,670 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:54:43,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:54:43,852 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:54:43,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:43 WrapperNode [2024-10-13 09:54:43,853 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:54:43,856 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:54:43,857 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:54:43,857 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:54:43,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:43" (1/1) ... [2024-10-13 09:54:43,900 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:43" (1/1) ... [2024-10-13 09:54:43,968 INFO L138 Inliner]: procedures = 272, calls = 50, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 389 [2024-10-13 09:54:43,969 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:54:43,969 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:54:43,969 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:54:43,970 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:54:43,978 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:43" (1/1) ... [2024-10-13 09:54:43,978 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:43" (1/1) ... [2024-10-13 09:54:43,984 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:43" (1/1) ... [2024-10-13 09:54:43,984 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:43" (1/1) ... [2024-10-13 09:54:44,018 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:43" (1/1) ... [2024-10-13 09:54:44,025 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:43" (1/1) ... [2024-10-13 09:54:44,028 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:43" (1/1) ... [2024-10-13 09:54:44,030 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:43" (1/1) ... [2024-10-13 09:54:44,038 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:54:44,039 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:54:44,043 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:54:44,043 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:54:44,044 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:43" (1/1) ... [2024-10-13 09:54:44,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:54:44,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:54:44,079 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) [2024-10-13 09:54:44,083 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 [2024-10-13 09:54:44,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 09:54:44,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 09:54:44,132 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 09:54:44,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-13 09:54:44,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-13 09:54:44,133 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 09:54:44,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:54:44,133 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-13 09:54:44,133 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-13 09:54:44,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-13 09:54:44,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:54:44,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:54:44,136 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 09:54:44,315 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:54:44,318 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:54:44,965 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 09:54:44,965 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:54:45,036 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:54:45,036 INFO L314 CfgBuilder]: Removed 35 assume(true) statements. [2024-10-13 09:54:45,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:54:45 BoogieIcfgContainer [2024-10-13 09:54:45,037 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:54:45,040 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:54:45,041 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:54:45,045 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:54:45,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:54:43" (1/3) ... [2024-10-13 09:54:45,046 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2098aee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:54:45, skipping insertion in model container [2024-10-13 09:54:45,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:54:43" (2/3) ... [2024-10-13 09:54:45,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2098aee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:54:45, skipping insertion in model container [2024-10-13 09:54:45,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:54:45" (3/3) ... [2024-10-13 09:54:45,049 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_73-funloop_hard_racefree.i [2024-10-13 09:54:45,069 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:54:45,069 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2024-10-13 09:54:45,069 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 09:54:45,152 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-13 09:54:45,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 345 places, 390 transitions, 787 flow [2024-10-13 09:54:45,419 INFO L124 PetriNetUnfolderBase]: 78/628 cut-off events. [2024-10-13 09:54:45,420 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:54:45,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 633 conditions, 628 events. 78/628 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3425 event pairs, 0 based on Foata normal form. 0/518 useless extension candidates. Maximal degree in co-relation 354. Up to 8 conditions per place. [2024-10-13 09:54:45,440 INFO L82 GeneralOperation]: Start removeDead. Operand has 345 places, 390 transitions, 787 flow [2024-10-13 09:54:45,452 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 345 places, 390 transitions, 787 flow [2024-10-13 09:54:45,461 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:54:45,469 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;@6e05332, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:54:45,469 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-10-13 09:54:45,481 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:54:45,481 INFO L124 PetriNetUnfolderBase]: 4/60 cut-off events. [2024-10-13 09:54:45,481 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:54:45,483 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:54:45,483 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] [2024-10-13 09:54:45,484 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-13 09:54:45,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:54:45,490 INFO L85 PathProgramCache]: Analyzing trace with hash 354593967, now seen corresponding path program 1 times [2024-10-13 09:54:45,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:54:45,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021526827] [2024-10-13 09:54:45,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:54:45,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:54:45,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:54:45,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:54:45,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:54:45,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021526827] [2024-10-13 09:54:45,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021526827] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:54:45,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:54:45,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 09:54:45,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842161175] [2024-10-13 09:54:45,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:54:45,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:54:45,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:54:45,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:54:45,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:54:45,927 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 390 [2024-10-13 09:54:45,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 390 transitions, 787 flow. Second operand has 3 states, 3 states have (on average 315.3333333333333) internal successors, (946), 3 states have internal predecessors, (946), 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) [2024-10-13 09:54:45,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:54:45,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 390 [2024-10-13 09:54:45,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:54:46,435 INFO L124 PetriNetUnfolderBase]: 181/2323 cut-off events. [2024-10-13 09:54:46,436 INFO L125 PetriNetUnfolderBase]: For 7/8 co-relation queries the response was YES. [2024-10-13 09:54:46,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2670 conditions, 2323 events. 181/2323 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 19815 event pairs, 136 based on Foata normal form. 404/2527 useless extension candidates. Maximal degree in co-relation 2390. Up to 340 conditions per place. [2024-10-13 09:54:46,454 INFO L140 encePairwiseOnDemand]: 346/390 looper letters, 31 selfloop transitions, 2 changer transitions 0/344 dead transitions. [2024-10-13 09:54:46,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 344 transitions, 761 flow [2024-10-13 09:54:46,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:54:46,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:54:46,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1018 transitions. [2024-10-13 09:54:46,476 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8700854700854701 [2024-10-13 09:54:46,481 INFO L175 Difference]: Start difference. First operand has 345 places, 390 transitions, 787 flow. Second operand 3 states and 1018 transitions. [2024-10-13 09:54:46,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 344 transitions, 761 flow [2024-10-13 09:54:46,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 344 transitions, 761 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:54:46,496 INFO L231 Difference]: Finished difference. Result has 342 places, 344 transitions, 705 flow [2024-10-13 09:54:46,498 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=705, PETRI_PLACES=342, PETRI_TRANSITIONS=344} [2024-10-13 09:54:46,502 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, -3 predicate places. [2024-10-13 09:54:46,502 INFO L471 AbstractCegarLoop]: Abstraction has has 342 places, 344 transitions, 705 flow [2024-10-13 09:54:46,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 315.3333333333333) internal successors, (946), 3 states have internal predecessors, (946), 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) [2024-10-13 09:54:46,504 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:54:46,504 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] [2024-10-13 09:54:46,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:54:46,505 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-13 09:54:46,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:54:46,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1610010690, now seen corresponding path program 1 times [2024-10-13 09:54:46,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:54:46,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796091560] [2024-10-13 09:54:46,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:54:46,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:54:46,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:54:46,716 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:54:46,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:54:46,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796091560] [2024-10-13 09:54:46,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796091560] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:54:46,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463900407] [2024-10-13 09:54:46,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:54:46,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:54:46,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:54:46,720 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) [2024-10-13 09:54:46,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 09:54:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:54:46,818 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 09:54:46,822 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:54:46,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:54:46,887 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:54:46,939 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:54:46,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463900407] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:54:46,941 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:54:46,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-13 09:54:46,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859836287] [2024-10-13 09:54:46,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:54:46,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 09:54:46,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:54:46,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 09:54:46,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-13 09:54:46,982 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 390 [2024-10-13 09:54:46,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 344 transitions, 705 flow. Second operand has 10 states, 10 states have (on average 312.8) internal successors, (3128), 10 states have internal predecessors, (3128), 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) [2024-10-13 09:54:46,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:54:46,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 390 [2024-10-13 09:54:46,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:54:47,429 INFO L124 PetriNetUnfolderBase]: 181/2330 cut-off events. [2024-10-13 09:54:47,430 INFO L125 PetriNetUnfolderBase]: For 8/9 co-relation queries the response was YES. [2024-10-13 09:54:47,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2696 conditions, 2330 events. 181/2330 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 19744 event pairs, 136 based on Foata normal form. 2/2132 useless extension candidates. Maximal degree in co-relation 2660. Up to 340 conditions per place. [2024-10-13 09:54:47,446 INFO L140 encePairwiseOnDemand]: 384/390 looper letters, 35 selfloop transitions, 9 changer transitions 0/352 dead transitions. [2024-10-13 09:54:47,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 352 transitions, 811 flow [2024-10-13 09:54:47,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 09:54:47,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 09:54:47,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2845 transitions. [2024-10-13 09:54:47,452 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8105413105413105 [2024-10-13 09:54:47,452 INFO L175 Difference]: Start difference. First operand has 342 places, 344 transitions, 705 flow. Second operand 9 states and 2845 transitions. [2024-10-13 09:54:47,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 352 transitions, 811 flow [2024-10-13 09:54:47,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 352 transitions, 809 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:54:47,461 INFO L231 Difference]: Finished difference. Result has 352 places, 350 transitions, 753 flow [2024-10-13 09:54:47,462 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=703, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=753, PETRI_PLACES=352, PETRI_TRANSITIONS=350} [2024-10-13 09:54:47,463 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, 7 predicate places. [2024-10-13 09:54:47,463 INFO L471 AbstractCegarLoop]: Abstraction has has 352 places, 350 transitions, 753 flow [2024-10-13 09:54:47,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 312.8) internal successors, (3128), 10 states have internal predecessors, (3128), 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) [2024-10-13 09:54:47,465 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:54:47,465 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] [2024-10-13 09:54:47,484 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 09:54:47,666 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 [2024-10-13 09:54:47,667 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-13 09:54:47,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:54:47,668 INFO L85 PathProgramCache]: Analyzing trace with hash 61864034, now seen corresponding path program 2 times [2024-10-13 09:54:47,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:54:47,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779893771] [2024-10-13 09:54:47,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:54:47,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:54:47,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:54:47,864 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:54:47,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:54:47,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779893771] [2024-10-13 09:54:47,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779893771] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:54:47,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873872238] [2024-10-13 09:54:47,868 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:54:47,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:54:47,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:54:47,870 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) [2024-10-13 09:54:47,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 09:54:47,964 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:54:47,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:54:47,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-13 09:54:47,969 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:54:48,081 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 [2024-10-13 09:54:48,116 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 [2024-10-13 09:54:48,167 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:54:48,168 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 [2024-10-13 09:54:48,220 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:54:48,221 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 [2024-10-13 09:54:48,258 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-13 09:54:48,259 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:54:48,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873872238] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:54:48,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:54:48,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-10-13 09:54:48,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932569569] [2024-10-13 09:54:48,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:54:48,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 09:54:48,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:54:48,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 09:54:48,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-13 09:54:48,688 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 390 [2024-10-13 09:54:48,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 350 transitions, 753 flow. Second operand has 8 states, 8 states have (on average 242.125) internal successors, (1937), 8 states have internal predecessors, (1937), 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) [2024-10-13 09:54:48,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:54:48,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 390 [2024-10-13 09:54:48,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:54:50,089 INFO L124 PetriNetUnfolderBase]: 2278/8749 cut-off events. [2024-10-13 09:54:50,090 INFO L125 PetriNetUnfolderBase]: For 14/17 co-relation queries the response was YES. [2024-10-13 09:54:50,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13140 conditions, 8749 events. 2278/8749 cut-off events. For 14/17 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 88785 event pairs, 1725 based on Foata normal form. 1/7989 useless extension candidates. Maximal degree in co-relation 13075. Up to 4195 conditions per place. [2024-10-13 09:54:50,137 INFO L140 encePairwiseOnDemand]: 378/390 looper letters, 162 selfloop transitions, 11 changer transitions 0/418 dead transitions. [2024-10-13 09:54:50,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 418 transitions, 1235 flow [2024-10-13 09:54:50,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 09:54:50,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 09:54:50,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2103 transitions. [2024-10-13 09:54:50,143 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6740384615384616 [2024-10-13 09:54:50,143 INFO L175 Difference]: Start difference. First operand has 352 places, 350 transitions, 753 flow. Second operand 8 states and 2103 transitions. [2024-10-13 09:54:50,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 418 transitions, 1235 flow [2024-10-13 09:54:50,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 418 transitions, 1229 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-13 09:54:50,153 INFO L231 Difference]: Finished difference. Result has 363 places, 357 transitions, 814 flow [2024-10-13 09:54:50,153 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=747, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=814, PETRI_PLACES=363, PETRI_TRANSITIONS=357} [2024-10-13 09:54:50,154 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, 18 predicate places. [2024-10-13 09:54:50,154 INFO L471 AbstractCegarLoop]: Abstraction has has 363 places, 357 transitions, 814 flow [2024-10-13 09:54:50,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 242.125) internal successors, (1937), 8 states have internal predecessors, (1937), 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) [2024-10-13 09:54:50,156 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:54:50,156 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] [2024-10-13 09:54:50,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-13 09:54:50,360 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 [2024-10-13 09:54:50,361 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-13 09:54:50,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:54:50,363 INFO L85 PathProgramCache]: Analyzing trace with hash -140062528, now seen corresponding path program 1 times [2024-10-13 09:54:50,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:54:50,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45011226] [2024-10-13 09:54:50,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:54:50,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:54:50,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:54:50,652 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-13 09:54:50,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:54:50,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45011226] [2024-10-13 09:54:50,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45011226] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:54:50,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31756717] [2024-10-13 09:54:50,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:54:50,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:54:50,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:54:50,660 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) [2024-10-13 09:54:50,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 09:54:50,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:54:50,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 09:54:50,756 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:54:50,806 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-13 09:54:50,806 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:54:50,920 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-13 09:54:50,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31756717] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:54:50,923 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:54:50,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-13 09:54:50,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451769435] [2024-10-13 09:54:50,924 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:54:50,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-13 09:54:50,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:54:50,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-13 09:54:50,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-13 09:54:50,964 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 390 [2024-10-13 09:54:50,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 357 transitions, 814 flow. Second operand has 18 states, 18 states have (on average 312.94444444444446) internal successors, (5633), 18 states have internal predecessors, (5633), 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) [2024-10-13 09:54:50,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:54:50,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 390 [2024-10-13 09:54:50,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:54:51,600 INFO L124 PetriNetUnfolderBase]: 192/2249 cut-off events. [2024-10-13 09:54:51,601 INFO L125 PetriNetUnfolderBase]: For 33/37 co-relation queries the response was YES. [2024-10-13 09:54:51,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2744 conditions, 2249 events. 192/2249 cut-off events. For 33/37 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 19122 event pairs, 138 based on Foata normal form. 4/2057 useless extension candidates. Maximal degree in co-relation 2602. Up to 341 conditions per place. [2024-10-13 09:54:51,616 INFO L140 encePairwiseOnDemand]: 384/390 looper letters, 39 selfloop transitions, 21 changer transitions 0/375 dead transitions. [2024-10-13 09:54:51,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 375 transitions, 1022 flow [2024-10-13 09:54:51,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-13 09:54:51,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-13 09:54:51,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6595 transitions. [2024-10-13 09:54:51,633 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8052503052503053 [2024-10-13 09:54:51,633 INFO L175 Difference]: Start difference. First operand has 363 places, 357 transitions, 814 flow. Second operand 21 states and 6595 transitions. [2024-10-13 09:54:51,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 375 transitions, 1022 flow [2024-10-13 09:54:51,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 375 transitions, 1015 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 09:54:51,642 INFO L231 Difference]: Finished difference. Result has 386 places, 370 transitions, 937 flow [2024-10-13 09:54:51,642 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=807, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=937, PETRI_PLACES=386, PETRI_TRANSITIONS=370} [2024-10-13 09:54:51,643 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, 41 predicate places. [2024-10-13 09:54:51,644 INFO L471 AbstractCegarLoop]: Abstraction has has 386 places, 370 transitions, 937 flow [2024-10-13 09:54:51,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 312.94444444444446) internal successors, (5633), 18 states have internal predecessors, (5633), 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) [2024-10-13 09:54:51,647 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:54:51,648 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] [2024-10-13 09:54:51,664 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 09:54:51,852 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 [2024-10-13 09:54:51,853 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-13 09:54:51,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:54:51,853 INFO L85 PathProgramCache]: Analyzing trace with hash -2131183360, now seen corresponding path program 2 times [2024-10-13 09:54:51,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:54:51,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055517091] [2024-10-13 09:54:51,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:54:51,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:54:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:54:52,279 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-13 09:54:52,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:54:52,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055517091] [2024-10-13 09:54:52,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055517091] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:54:52,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366583465] [2024-10-13 09:54:52,280 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:54:52,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:54:52,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:54:52,283 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) [2024-10-13 09:54:52,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 09:54:52,373 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:54:52,373 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:54:52,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-13 09:54:52,379 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:54:52,389 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 [2024-10-13 09:54:52,408 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 [2024-10-13 09:54:52,438 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:54:52,439 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 [2024-10-13 09:54:52,479 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:54:52,479 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 [2024-10-13 09:54:52,517 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-13 09:54:52,517 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:54:52,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366583465] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:54:52,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:54:52,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-13 09:54:52,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513728355] [2024-10-13 09:54:52,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:54:52,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:54:52,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:54:52,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:54:52,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-13 09:54:52,861 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 390 [2024-10-13 09:54:52,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 370 transitions, 937 flow. Second operand has 6 states, 6 states have (on average 244.66666666666666) internal successors, (1468), 6 states have internal predecessors, (1468), 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) [2024-10-13 09:54:52,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:54:52,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 390 [2024-10-13 09:54:52,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:54:54,446 INFO L124 PetriNetUnfolderBase]: 2359/8962 cut-off events. [2024-10-13 09:54:54,446 INFO L125 PetriNetUnfolderBase]: For 374/378 co-relation queries the response was YES. [2024-10-13 09:54:54,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14042 conditions, 8962 events. 2359/8962 cut-off events. For 374/378 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 90741 event pairs, 1820 based on Foata normal form. 29/8240 useless extension candidates. Maximal degree in co-relation 13893. Up to 4322 conditions per place. [2024-10-13 09:54:54,495 INFO L140 encePairwiseOnDemand]: 363/390 looper letters, 135 selfloop transitions, 92 changer transitions 0/486 dead transitions. [2024-10-13 09:54:54,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 486 transitions, 1645 flow [2024-10-13 09:54:54,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:54:54,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:54:54,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1674 transitions. [2024-10-13 09:54:54,501 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7153846153846154 [2024-10-13 09:54:54,501 INFO L175 Difference]: Start difference. First operand has 386 places, 370 transitions, 937 flow. Second operand 6 states and 1674 transitions. [2024-10-13 09:54:54,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 486 transitions, 1645 flow [2024-10-13 09:54:54,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 486 transitions, 1621 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-13 09:54:54,515 INFO L231 Difference]: Finished difference. Result has 390 places, 454 transitions, 1521 flow [2024-10-13 09:54:54,516 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=913, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1521, PETRI_PLACES=390, PETRI_TRANSITIONS=454} [2024-10-13 09:54:54,517 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, 45 predicate places. [2024-10-13 09:54:54,517 INFO L471 AbstractCegarLoop]: Abstraction has has 390 places, 454 transitions, 1521 flow [2024-10-13 09:54:54,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 244.66666666666666) internal successors, (1468), 6 states have internal predecessors, (1468), 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) [2024-10-13 09:54:54,518 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:54:54,519 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] [2024-10-13 09:54:54,537 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 09:54:54,723 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 [2024-10-13 09:54:54,724 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-13 09:54:54,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:54:54,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1642173509, now seen corresponding path program 1 times [2024-10-13 09:54:54,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:54:54,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143821789] [2024-10-13 09:54:54,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:54:54,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:54:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:54:55,076 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-13 09:54:55,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:54:55,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143821789] [2024-10-13 09:54:55,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143821789] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:54:55,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149188686] [2024-10-13 09:54:55,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:54:55,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:54:55,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:54:55,082 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) [2024-10-13 09:54:55,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 09:54:55,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:54:55,213 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-13 09:54:55,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:54:55,416 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-13 09:54:55,417 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:54:55,629 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-13 09:54:55,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149188686] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:54:55,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:54:55,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-13 09:54:55,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081074175] [2024-10-13 09:54:55,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:54:55,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-13 09:54:55,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:54:55,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-13 09:54:55,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-13 09:54:55,668 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 390 [2024-10-13 09:54:55,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 454 transitions, 1521 flow. Second operand has 23 states, 23 states have (on average 313.04347826086956) internal successors, (7200), 23 states have internal predecessors, (7200), 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) [2024-10-13 09:54:55,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:54:55,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 390 [2024-10-13 09:54:55,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:54:56,474 INFO L124 PetriNetUnfolderBase]: 340/3019 cut-off events. [2024-10-13 09:54:56,474 INFO L125 PetriNetUnfolderBase]: For 559/627 co-relation queries the response was YES. [2024-10-13 09:54:56,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4562 conditions, 3019 events. 340/3019 cut-off events. For 559/627 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 27461 event pairs, 136 based on Foata normal form. 3/2784 useless extension candidates. Maximal degree in co-relation 4333. Up to 418 conditions per place. [2024-10-13 09:54:56,496 INFO L140 encePairwiseOnDemand]: 384/390 looper letters, 42 selfloop transitions, 30 changer transitions 0/471 dead transitions. [2024-10-13 09:54:56,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 471 transitions, 1787 flow [2024-10-13 09:54:56,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-13 09:54:56,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-13 09:54:56,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 9405 transitions. [2024-10-13 09:54:56,515 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8038461538461539 [2024-10-13 09:54:56,515 INFO L175 Difference]: Start difference. First operand has 390 places, 454 transitions, 1521 flow. Second operand 30 states and 9405 transitions. [2024-10-13 09:54:56,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 471 transitions, 1787 flow [2024-10-13 09:54:56,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 471 transitions, 1769 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-10-13 09:54:56,528 INFO L231 Difference]: Finished difference. Result has 423 places, 464 transitions, 1655 flow [2024-10-13 09:54:56,529 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=1503, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1655, PETRI_PLACES=423, PETRI_TRANSITIONS=464} [2024-10-13 09:54:56,530 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, 78 predicate places. [2024-10-13 09:54:56,530 INFO L471 AbstractCegarLoop]: Abstraction has has 423 places, 464 transitions, 1655 flow [2024-10-13 09:54:56,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 313.04347826086956) internal successors, (7200), 23 states have internal predecessors, (7200), 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) [2024-10-13 09:54:56,533 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:54:56,533 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] [2024-10-13 09:54:56,551 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-13 09:54:56,734 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 [2024-10-13 09:54:56,734 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-13 09:54:56,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:54:56,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1802028206, now seen corresponding path program 2 times [2024-10-13 09:54:56,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:54:56,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30386632] [2024-10-13 09:54:56,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:54:56,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:54:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:54:56,776 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 09:54:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:54:56,842 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 09:54:56,842 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-13 09:54:56,843 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-10-13 09:54:56,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-10-13 09:54:56,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-10-13 09:54:56,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-10-13 09:54:56,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-10-13 09:54:56,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-10-13 09:54:56,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2024-10-13 09:54:56,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-10-13 09:54:56,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-10-13 09:54:56,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-10-13 09:54:56,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-10-13 09:54:56,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-10-13 09:54:56,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-10-13 09:54:56,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-10-13 09:54:56,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-10-13 09:54:56,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-10-13 09:54:56,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-10-13 09:54:56,850 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-10-13 09:54:56,851 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-10-13 09:54:56,852 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-10-13 09:54:56,852 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-10-13 09:54:56,852 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-10-13 09:54:56,852 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-10-13 09:54:56,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 09:54:56,852 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1] [2024-10-13 09:54:56,856 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-13 09:54:56,856 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-13 09:54:56,906 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-13 09:54:56,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 446 places, 505 transitions, 1026 flow [2024-10-13 09:54:57,036 INFO L124 PetriNetUnfolderBase]: 126/1009 cut-off events. [2024-10-13 09:54:57,036 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-13 09:54:57,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1021 conditions, 1009 events. 126/1009 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6191 event pairs, 0 based on Foata normal form. 0/832 useless extension candidates. Maximal degree in co-relation 630. Up to 12 conditions per place. [2024-10-13 09:54:57,058 INFO L82 GeneralOperation]: Start removeDead. Operand has 446 places, 505 transitions, 1026 flow [2024-10-13 09:54:57,068 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 446 places, 505 transitions, 1026 flow [2024-10-13 09:54:57,069 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:54:57,069 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;@6e05332, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:54:57,069 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-10-13 09:54:57,073 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:54:57,073 INFO L124 PetriNetUnfolderBase]: 4/60 cut-off events. [2024-10-13 09:54:57,073 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:54:57,073 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:54:57,074 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] [2024-10-13 09:54:57,074 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-13 09:54:57,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:54:57,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1380409905, now seen corresponding path program 1 times [2024-10-13 09:54:57,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:54:57,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698525438] [2024-10-13 09:54:57,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:54:57,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:54:57,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:54:57,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:54:57,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:54:57,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698525438] [2024-10-13 09:54:57,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698525438] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:54:57,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:54:57,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 09:54:57,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345047962] [2024-10-13 09:54:57,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:54:57,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:54:57,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:54:57,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:54:57,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:54:57,125 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 405 out of 505 [2024-10-13 09:54:57,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 505 transitions, 1026 flow. Second operand has 3 states, 3 states have (on average 406.3333333333333) internal successors, (1219), 3 states have internal predecessors, (1219), 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) [2024-10-13 09:54:57,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:54:57,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 405 of 505 [2024-10-13 09:54:57,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:55:00,303 INFO L124 PetriNetUnfolderBase]: 3251/22828 cut-off events. [2024-10-13 09:55:00,304 INFO L125 PetriNetUnfolderBase]: For 149/153 co-relation queries the response was YES. [2024-10-13 09:55:00,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27608 conditions, 22828 events. 3251/22828 cut-off events. For 149/153 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 311078 event pairs, 2680 based on Foata normal form. 5658/26597 useless extension candidates. Maximal degree in co-relation 24734. Up to 4707 conditions per place. [2024-10-13 09:55:00,466 INFO L140 encePairwiseOnDemand]: 448/505 looper letters, 41 selfloop transitions, 2 changer transitions 0/444 dead transitions. [2024-10-13 09:55:00,467 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 444 transitions, 990 flow [2024-10-13 09:55:00,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:55:00,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:55:00,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1314 transitions. [2024-10-13 09:55:00,470 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8673267326732673 [2024-10-13 09:55:00,470 INFO L175 Difference]: Start difference. First operand has 446 places, 505 transitions, 1026 flow. Second operand 3 states and 1314 transitions. [2024-10-13 09:55:00,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 444 transitions, 990 flow [2024-10-13 09:55:00,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 444 transitions, 990 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:55:00,478 INFO L231 Difference]: Finished difference. Result has 441 places, 444 transitions, 914 flow [2024-10-13 09:55:00,479 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=505, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=914, PETRI_PLACES=441, PETRI_TRANSITIONS=444} [2024-10-13 09:55:00,482 INFO L277 CegarLoopForPetriNet]: 446 programPoint places, -5 predicate places. [2024-10-13 09:55:00,482 INFO L471 AbstractCegarLoop]: Abstraction has has 441 places, 444 transitions, 914 flow [2024-10-13 09:55:00,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 406.3333333333333) internal successors, (1219), 3 states have internal predecessors, (1219), 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) [2024-10-13 09:55:00,483 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:55:00,483 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] [2024-10-13 09:55:00,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 09:55:00,483 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-13 09:55:00,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:55:00,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1875125979, now seen corresponding path program 1 times [2024-10-13 09:55:00,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:55:00,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798855865] [2024-10-13 09:55:00,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:55:00,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:55:00,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:55:00,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:55:00,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:55:00,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798855865] [2024-10-13 09:55:00,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798855865] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:55:00,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093135063] [2024-10-13 09:55:00,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:55:00,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:55:00,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:55:00,559 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) [2024-10-13 09:55:00,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 09:55:00,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:55:00,653 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 09:55:00,654 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:55:00,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:55:00,678 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:55:00,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:55:00,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093135063] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:55:00,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:55:00,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-13 09:55:00,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293118154] [2024-10-13 09:55:00,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:55:00,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 09:55:00,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:55:00,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 09:55:00,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-13 09:55:00,732 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 402 out of 505 [2024-10-13 09:55:00,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 444 transitions, 914 flow. Second operand has 10 states, 10 states have (on average 403.8) internal successors, (4038), 10 states have internal predecessors, (4038), 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) [2024-10-13 09:55:00,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:55:00,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 402 of 505 [2024-10-13 09:55:00,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:55:03,784 INFO L124 PetriNetUnfolderBase]: 3251/22835 cut-off events. [2024-10-13 09:55:03,784 INFO L125 PetriNetUnfolderBase]: For 152/156 co-relation queries the response was YES. [2024-10-13 09:55:03,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27634 conditions, 22835 events. 3251/22835 cut-off events. For 152/156 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 311382 event pairs, 2680 based on Foata normal form. 2/20948 useless extension candidates. Maximal degree in co-relation 27597. Up to 4707 conditions per place. [2024-10-13 09:55:03,928 INFO L140 encePairwiseOnDemand]: 499/505 looper letters, 45 selfloop transitions, 9 changer transitions 0/452 dead transitions. [2024-10-13 09:55:03,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 452 transitions, 1040 flow [2024-10-13 09:55:03,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 09:55:03,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 09:55:03,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3674 transitions. [2024-10-13 09:55:03,935 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8083608360836083 [2024-10-13 09:55:03,935 INFO L175 Difference]: Start difference. First operand has 441 places, 444 transitions, 914 flow. Second operand 9 states and 3674 transitions. [2024-10-13 09:55:03,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 452 transitions, 1040 flow [2024-10-13 09:55:03,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 452 transitions, 1038 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:55:03,943 INFO L231 Difference]: Finished difference. Result has 451 places, 450 transitions, 962 flow [2024-10-13 09:55:03,943 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=505, PETRI_DIFFERENCE_MINUEND_FLOW=912, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=444, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=962, PETRI_PLACES=451, PETRI_TRANSITIONS=450} [2024-10-13 09:55:03,944 INFO L277 CegarLoopForPetriNet]: 446 programPoint places, 5 predicate places. [2024-10-13 09:55:03,944 INFO L471 AbstractCegarLoop]: Abstraction has has 451 places, 450 transitions, 962 flow [2024-10-13 09:55:03,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 403.8) internal successors, (4038), 10 states have internal predecessors, (4038), 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) [2024-10-13 09:55:03,946 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:55:03,946 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] [2024-10-13 09:55:03,966 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-13 09:55:04,147 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 [2024-10-13 09:55:04,148 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-10-13 09:55:04,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:55:04,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1739394907, now seen corresponding path program 2 times [2024-10-13 09:55:04,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:55:04,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213747102] [2024-10-13 09:55:04,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:55:04,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:55:04,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:55:04,253 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:55:04,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:55:04,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213747102] [2024-10-13 09:55:04,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213747102] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:55:04,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766739481] [2024-10-13 09:55:04,254 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:55:04,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:55:04,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:55:04,256 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) [2024-10-13 09:55:04,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-13 09:55:04,350 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:55:04,351 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:55:04,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-13 09:55:04,358 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:55:04,415 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 [2024-10-13 09:55:04,437 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 [2024-10-13 09:55:04,473 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:55:04,474 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 [2024-10-13 09:55:04,516 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:55:04,517 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 [2024-10-13 09:55:04,550 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-13 09:55:04,550 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:55:04,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766739481] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:55:04,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:55:04,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-10-13 09:55:04,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100459245] [2024-10-13 09:55:04,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:55:04,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 09:55:04,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:55:04,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 09:55:04,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-13 09:55:04,848 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 505 [2024-10-13 09:55:04,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 450 transitions, 962 flow. Second operand has 8 states, 8 states have (on average 313.125) internal successors, (2505), 8 states have internal predecessors, (2505), 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) [2024-10-13 09:55:04,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:55:04,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 505 [2024-10-13 09:55:04,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand