./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 61a67961 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-wip.fs.cvc5-61a6796-m [2024-10-14 17:09:37,131 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 17:09:37,166 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-14 17:09:37,169 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 17:09:37,169 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 17:09:37,183 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 17:09:37,184 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 17:09:37,184 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 17:09:37,184 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 17:09:37,185 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 17:09:37,185 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 17:09:37,185 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 17:09:37,186 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 17:09:37,186 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 17:09:37,186 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 17:09:37,186 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 17:09:37,187 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 17:09:37,187 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 17:09:37,187 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 17:09:37,187 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 17:09:37,188 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 17:09:37,191 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 17:09:37,191 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-14 17:09:37,191 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 17:09:37,191 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 17:09:37,191 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 17:09:37,192 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 17:09:37,192 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 17:09:37,192 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 17:09:37,192 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 17:09:37,192 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 17:09:37,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:09:37,193 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 17:09:37,193 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 17:09:37,193 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 17:09:37,193 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 17:09:37,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 17:09:37,194 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 17:09:37,194 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 17:09:37,194 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 17:09:37,197 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 17:09:37,198 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8af2e9e80aefb6a93651d6c869df13510f679bd9566c8571973545c9393aab5 [2024-10-14 17:09:37,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 17:09:37,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 17:09:37,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 17:09:37,475 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 17:09:37,476 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 17:09:37,476 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_73-funloop_hard_racefree.i [2024-10-14 17:09:38,790 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 17:09:39,046 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 17:09:39,048 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_73-funloop_hard_racefree.i [2024-10-14 17:09:39,062 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7ff9f75f/1f3ca38869b147c7b50f456e591e0ee5/FLAG710b131dd [2024-10-14 17:09:39,077 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7ff9f75f/1f3ca38869b147c7b50f456e591e0ee5 [2024-10-14 17:09:39,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 17:09:39,080 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 17:09:39,082 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 17:09:39,082 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 17:09:39,090 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 17:09:39,091 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:09:39" (1/1) ... [2024-10-14 17:09:39,092 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22084b13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:39, skipping insertion in model container [2024-10-14 17:09:39,092 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:09:39" (1/1) ... [2024-10-14 17:09:39,142 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 17:09:39,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:09:39,517 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 17:09:39,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:09:39,621 INFO L204 MainTranslator]: Completed translation [2024-10-14 17:09:39,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:39 WrapperNode [2024-10-14 17:09:39,621 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 17:09:39,622 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 17:09:39,622 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 17:09:39,623 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 17:09:39,627 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:39" (1/1) ... [2024-10-14 17:09:39,650 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:39" (1/1) ... [2024-10-14 17:09:39,695 INFO L138 Inliner]: procedures = 272, calls = 50, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 389 [2024-10-14 17:09:39,695 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 17:09:39,696 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 17:09:39,696 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 17:09:39,696 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 17:09:39,703 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:39" (1/1) ... [2024-10-14 17:09:39,703 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:39" (1/1) ... [2024-10-14 17:09:39,708 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:39" (1/1) ... [2024-10-14 17:09:39,708 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:39" (1/1) ... [2024-10-14 17:09:39,723 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:39" (1/1) ... [2024-10-14 17:09:39,727 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:39" (1/1) ... [2024-10-14 17:09:39,729 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:39" (1/1) ... [2024-10-14 17:09:39,730 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:39" (1/1) ... [2024-10-14 17:09:39,733 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 17:09:39,734 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 17:09:39,734 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 17:09:39,734 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 17:09:39,735 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:39" (1/1) ... [2024-10-14 17:09:39,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:09:39,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:09:39,762 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) [2024-10-14 17:09:39,774 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 [2024-10-14 17:09:39,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 17:09:39,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 17:09:39,812 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-14 17:09:39,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-14 17:09:39,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-14 17:09:39,812 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-14 17:09:39,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 17:09:39,813 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-14 17:09:39,813 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-14 17:09:39,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-14 17:09:39,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 17:09:39,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 17:09:39,814 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 17:09:39,933 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 17:09:39,935 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 17:09:40,374 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 17:09:40,375 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 17:09:40,411 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 17:09:40,412 INFO L314 CfgBuilder]: Removed 35 assume(true) statements. [2024-10-14 17:09:40,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:09:40 BoogieIcfgContainer [2024-10-14 17:09:40,412 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 17:09:40,415 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 17:09:40,415 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 17:09:40,442 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 17:09:40,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:09:39" (1/3) ... [2024-10-14 17:09:40,443 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31545d7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:09:40, skipping insertion in model container [2024-10-14 17:09:40,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:39" (2/3) ... [2024-10-14 17:09:40,444 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31545d7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:09:40, skipping insertion in model container [2024-10-14 17:09:40,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:09:40" (3/3) ... [2024-10-14 17:09:40,445 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_73-funloop_hard_racefree.i [2024-10-14 17:09:40,456 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 17:09:40,456 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2024-10-14 17:09:40,457 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 17:09:40,567 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-14 17:09:40,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 345 places, 390 transitions, 787 flow [2024-10-14 17:09:40,702 INFO L124 PetriNetUnfolderBase]: 78/628 cut-off events. [2024-10-14 17:09:40,703 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 17:09:40,716 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. [2024-10-14 17:09:40,717 INFO L82 GeneralOperation]: Start removeDead. Operand has 345 places, 390 transitions, 787 flow [2024-10-14 17:09:40,728 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 345 places, 390 transitions, 787 flow [2024-10-14 17:09:40,740 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 17:09:40,746 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;@69ff39cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 17:09:40,747 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-10-14 17:09:40,754 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 17:09:40,755 INFO L124 PetriNetUnfolderBase]: 4/60 cut-off events. [2024-10-14 17:09:40,755 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:09:40,755 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:40,756 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] [2024-10-14 17:09:40,756 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)] === [2024-10-14 17:09:40,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:40,761 INFO L85 PathProgramCache]: Analyzing trace with hash 354593967, now seen corresponding path program 1 times [2024-10-14 17:09:40,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:40,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25517501] [2024-10-14 17:09:40,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:40,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:41,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:09:41,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:09:41,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25517501] [2024-10-14 17:09:41,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25517501] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:09:41,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:09:41,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 17:09:41,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833700589] [2024-10-14 17:09:41,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:09:41,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:09:41,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:09:41,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:09:41,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:09:41,104 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 390 [2024-10-14 17:09:41,111 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) [2024-10-14 17:09:41,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:09:41,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 390 [2024-10-14 17:09:41,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:09:41,439 INFO L124 PetriNetUnfolderBase]: 181/2323 cut-off events. [2024-10-14 17:09:41,440 INFO L125 PetriNetUnfolderBase]: For 8/9 co-relation queries the response was YES. [2024-10-14 17:09:41,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2670 conditions, 2323 events. 181/2323 cut-off events. For 8/9 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. [2024-10-14 17:09:41,453 INFO L140 encePairwiseOnDemand]: 346/390 looper letters, 31 selfloop transitions, 2 changer transitions 0/344 dead transitions. [2024-10-14 17:09:41,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 344 transitions, 761 flow [2024-10-14 17:09:41,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:09:41,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:09:41,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1018 transitions. [2024-10-14 17:09:41,467 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8700854700854701 [2024-10-14 17:09:41,468 INFO L175 Difference]: Start difference. First operand has 345 places, 390 transitions, 787 flow. Second operand 3 states and 1018 transitions. [2024-10-14 17:09:41,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 344 transitions, 761 flow [2024-10-14 17:09:41,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 344 transitions, 761 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:09:41,478 INFO L231 Difference]: Finished difference. Result has 342 places, 344 transitions, 705 flow [2024-10-14 17:09:41,480 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} [2024-10-14 17:09:41,483 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, -3 predicate places. [2024-10-14 17:09:41,483 INFO L471 AbstractCegarLoop]: Abstraction has has 342 places, 344 transitions, 705 flow [2024-10-14 17:09:41,484 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) [2024-10-14 17:09:41,484 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:41,484 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] [2024-10-14 17:09:41,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 17:09:41,485 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)] === [2024-10-14 17:09:41,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:41,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1610010690, now seen corresponding path program 1 times [2024-10-14 17:09:41,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:41,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319438417] [2024-10-14 17:09:41,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:41,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:41,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:41,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:09:41,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:09:41,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319438417] [2024-10-14 17:09:41,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319438417] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:09:41,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691162785] [2024-10-14 17:09:41,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:41,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:09:41,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:09:41,650 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) [2024-10-14 17:09:41,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 17:09:41,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:41,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 17:09:41,733 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:09:41,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:09:41,784 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:09:41,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:09:41,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691162785] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:09:41,850 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:09:41,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-14 17:09:41,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600919352] [2024-10-14 17:09:41,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:09:41,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 17:09:41,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:09:41,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 17:09:41,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-14 17:09:41,880 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 390 [2024-10-14 17:09:41,883 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) [2024-10-14 17:09:41,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:09:41,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 390 [2024-10-14 17:09:41,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:09:42,177 INFO L124 PetriNetUnfolderBase]: 181/2330 cut-off events. [2024-10-14 17:09:42,177 INFO L125 PetriNetUnfolderBase]: For 8/9 co-relation queries the response was YES. [2024-10-14 17:09:42,183 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. [2024-10-14 17:09:42,188 INFO L140 encePairwiseOnDemand]: 384/390 looper letters, 35 selfloop transitions, 9 changer transitions 0/352 dead transitions. [2024-10-14 17:09:42,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 352 transitions, 811 flow [2024-10-14 17:09:42,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 17:09:42,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-14 17:09:42,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2845 transitions. [2024-10-14 17:09:42,193 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8105413105413105 [2024-10-14 17:09:42,193 INFO L175 Difference]: Start difference. First operand has 342 places, 344 transitions, 705 flow. Second operand 9 states and 2845 transitions. [2024-10-14 17:09:42,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 352 transitions, 811 flow [2024-10-14 17:09:42,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 352 transitions, 809 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:09:42,198 INFO L231 Difference]: Finished difference. Result has 352 places, 350 transitions, 753 flow [2024-10-14 17:09:42,198 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} [2024-10-14 17:09:42,199 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, 7 predicate places. [2024-10-14 17:09:42,199 INFO L471 AbstractCegarLoop]: Abstraction has has 352 places, 350 transitions, 753 flow [2024-10-14 17:09:42,201 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) [2024-10-14 17:09:42,201 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:42,201 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] [2024-10-14 17:09:42,216 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 17:09:42,405 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 [2024-10-14 17:09:42,406 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)] === [2024-10-14 17:09:42,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:42,407 INFO L85 PathProgramCache]: Analyzing trace with hash 61864034, now seen corresponding path program 2 times [2024-10-14 17:09:42,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:42,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215295861] [2024-10-14 17:09:42,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:42,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:42,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:42,544 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:09:42,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:09:42,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215295861] [2024-10-14 17:09:42,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215295861] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:09:42,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387873119] [2024-10-14 17:09:42,546 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 17:09:42,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:09:42,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:09:42,547 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) [2024-10-14 17:09:42,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 17:09:42,609 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 17:09:42,609 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:09:42,610 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-14 17:09:42,612 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:09:42,706 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 [2024-10-14 17:09:42,730 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 [2024-10-14 17:09:42,762 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:09:42,762 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 [2024-10-14 17:09:42,799 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:09:42,800 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 [2024-10-14 17:09:42,828 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 17:09:42,829 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:09:42,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387873119] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:09:42,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:09:42,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-10-14 17:09:42,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27053954] [2024-10-14 17:09:42,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:09:42,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 17:09:42,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:09:42,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 17:09:42,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-14 17:09:43,163 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 390 [2024-10-14 17:09:43,166 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) [2024-10-14 17:09:43,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:09:43,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 390 [2024-10-14 17:09:43,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:09:44,134 INFO L124 PetriNetUnfolderBase]: 2278/8749 cut-off events. [2024-10-14 17:09:44,135 INFO L125 PetriNetUnfolderBase]: For 14/17 co-relation queries the response was YES. [2024-10-14 17:09:44,147 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. [2024-10-14 17:09:44,169 INFO L140 encePairwiseOnDemand]: 378/390 looper letters, 162 selfloop transitions, 11 changer transitions 0/418 dead transitions. [2024-10-14 17:09:44,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 418 transitions, 1235 flow [2024-10-14 17:09:44,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 17:09:44,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-14 17:09:44,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2103 transitions. [2024-10-14 17:09:44,173 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6740384615384616 [2024-10-14 17:09:44,173 INFO L175 Difference]: Start difference. First operand has 352 places, 350 transitions, 753 flow. Second operand 8 states and 2103 transitions. [2024-10-14 17:09:44,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 418 transitions, 1235 flow [2024-10-14 17:09:44,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 418 transitions, 1229 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-14 17:09:44,180 INFO L231 Difference]: Finished difference. Result has 363 places, 357 transitions, 814 flow [2024-10-14 17:09:44,181 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} [2024-10-14 17:09:44,182 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, 18 predicate places. [2024-10-14 17:09:44,182 INFO L471 AbstractCegarLoop]: Abstraction has has 363 places, 357 transitions, 814 flow [2024-10-14 17:09:44,183 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) [2024-10-14 17:09:44,183 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:44,183 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] [2024-10-14 17:09:44,196 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 17:09:44,387 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 [2024-10-14 17:09:44,388 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)] === [2024-10-14 17:09:44,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:44,389 INFO L85 PathProgramCache]: Analyzing trace with hash -140062528, now seen corresponding path program 1 times [2024-10-14 17:09:44,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:44,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850190213] [2024-10-14 17:09:44,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:44,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:44,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:44,545 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 17:09:44,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:09:44,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850190213] [2024-10-14 17:09:44,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850190213] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:09:44,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103811919] [2024-10-14 17:09:44,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:44,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:09:44,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:09:44,548 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) [2024-10-14 17:09:44,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 17:09:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:44,620 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 17:09:44,622 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:09:44,655 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 17:09:44,655 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:09:44,731 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 17:09:44,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103811919] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:09:44,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:09:44,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-14 17:09:44,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402919550] [2024-10-14 17:09:44,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:09:44,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-14 17:09:44,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:09:44,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-14 17:09:44,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-14 17:09:44,764 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 390 [2024-10-14 17:09:44,769 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) [2024-10-14 17:09:44,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:09:44,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 390 [2024-10-14 17:09:44,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:09:45,315 INFO L124 PetriNetUnfolderBase]: 192/2249 cut-off events. [2024-10-14 17:09:45,315 INFO L125 PetriNetUnfolderBase]: For 33/37 co-relation queries the response was YES. [2024-10-14 17:09:45,336 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. [2024-10-14 17:09:45,348 INFO L140 encePairwiseOnDemand]: 384/390 looper letters, 39 selfloop transitions, 21 changer transitions 0/375 dead transitions. [2024-10-14 17:09:45,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 375 transitions, 1022 flow [2024-10-14 17:09:45,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-14 17:09:45,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-14 17:09:45,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6595 transitions. [2024-10-14 17:09:45,370 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8052503052503053 [2024-10-14 17:09:45,371 INFO L175 Difference]: Start difference. First operand has 363 places, 357 transitions, 814 flow. Second operand 21 states and 6595 transitions. [2024-10-14 17:09:45,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 375 transitions, 1022 flow [2024-10-14 17:09:45,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 375 transitions, 1015 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:09:45,385 INFO L231 Difference]: Finished difference. Result has 386 places, 370 transitions, 937 flow [2024-10-14 17:09:45,386 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} [2024-10-14 17:09:45,390 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, 41 predicate places. [2024-10-14 17:09:45,391 INFO L471 AbstractCegarLoop]: Abstraction has has 386 places, 370 transitions, 937 flow [2024-10-14 17:09:45,394 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) [2024-10-14 17:09:45,394 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:45,395 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] [2024-10-14 17:09:45,410 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 17:09:45,595 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 [2024-10-14 17:09:45,596 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)] === [2024-10-14 17:09:45,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:45,597 INFO L85 PathProgramCache]: Analyzing trace with hash -2131183360, now seen corresponding path program 2 times [2024-10-14 17:09:45,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:45,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185426109] [2024-10-14 17:09:45,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:45,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:45,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:45,915 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 17:09:45,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:09:45,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185426109] [2024-10-14 17:09:45,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185426109] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:09:45,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230720353] [2024-10-14 17:09:45,916 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 17:09:45,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:09:45,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:09:45,919 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) [2024-10-14 17:09:45,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 17:09:46,000 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 17:09:46,000 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:09:46,001 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-14 17:09:46,004 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:09:46,012 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 [2024-10-14 17:09:46,026 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 [2024-10-14 17:09:46,051 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:09:46,051 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 [2024-10-14 17:09:46,079 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:09:46,079 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 [2024-10-14 17:09:46,105 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-14 17:09:46,105 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:09:46,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230720353] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:09:46,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:09:46,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-14 17:09:46,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856566896] [2024-10-14 17:09:46,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:09:46,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:09:46,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:09:46,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:09:46,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-14 17:09:46,369 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 390 [2024-10-14 17:09:46,371 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) [2024-10-14 17:09:46,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:09:46,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 390 [2024-10-14 17:09:46,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:09:47,546 INFO L124 PetriNetUnfolderBase]: 2359/8962 cut-off events. [2024-10-14 17:09:47,546 INFO L125 PetriNetUnfolderBase]: For 374/378 co-relation queries the response was YES. [2024-10-14 17:09:47,573 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. [2024-10-14 17:09:47,600 INFO L140 encePairwiseOnDemand]: 363/390 looper letters, 135 selfloop transitions, 92 changer transitions 0/486 dead transitions. [2024-10-14 17:09:47,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 486 transitions, 1645 flow [2024-10-14 17:09:47,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:09:47,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:09:47,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1674 transitions. [2024-10-14 17:09:47,603 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7153846153846154 [2024-10-14 17:09:47,603 INFO L175 Difference]: Start difference. First operand has 386 places, 370 transitions, 937 flow. Second operand 6 states and 1674 transitions. [2024-10-14 17:09:47,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 486 transitions, 1645 flow [2024-10-14 17:09:47,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 486 transitions, 1621 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-14 17:09:47,614 INFO L231 Difference]: Finished difference. Result has 390 places, 454 transitions, 1521 flow [2024-10-14 17:09:47,615 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} [2024-10-14 17:09:47,617 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, 45 predicate places. [2024-10-14 17:09:47,617 INFO L471 AbstractCegarLoop]: Abstraction has has 390 places, 454 transitions, 1521 flow [2024-10-14 17:09:47,617 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) [2024-10-14 17:09:47,617 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:47,618 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] [2024-10-14 17:09:47,631 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 17:09:47,821 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 [2024-10-14 17:09:47,822 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)] === [2024-10-14 17:09:47,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:47,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1642173509, now seen corresponding path program 1 times [2024-10-14 17:09:47,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:47,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956535547] [2024-10-14 17:09:47,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:47,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:47,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:48,169 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-14 17:09:48,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:09:48,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956535547] [2024-10-14 17:09:48,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956535547] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:09:48,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10511762] [2024-10-14 17:09:48,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:48,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:09:48,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:09:48,173 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) [2024-10-14 17:09:48,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 17:09:48,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:48,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-14 17:09:48,259 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:09:48,335 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-14 17:09:48,336 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:09:48,504 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-14 17:09:48,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10511762] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:09:48,505 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:09:48,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-14 17:09:48,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206417048] [2024-10-14 17:09:48,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:09:48,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-14 17:09:48,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:09:48,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-14 17:09:48,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-14 17:09:48,529 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 390 [2024-10-14 17:09:48,535 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) [2024-10-14 17:09:48,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:09:48,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 390 [2024-10-14 17:09:48,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:09:49,163 INFO L124 PetriNetUnfolderBase]: 340/3019 cut-off events. [2024-10-14 17:09:49,163 INFO L125 PetriNetUnfolderBase]: For 559/627 co-relation queries the response was YES. [2024-10-14 17:09:49,172 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. [2024-10-14 17:09:49,177 INFO L140 encePairwiseOnDemand]: 384/390 looper letters, 42 selfloop transitions, 30 changer transitions 0/471 dead transitions. [2024-10-14 17:09:49,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 471 transitions, 1787 flow [2024-10-14 17:09:49,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-14 17:09:49,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-14 17:09:49,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 9405 transitions. [2024-10-14 17:09:49,190 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8038461538461539 [2024-10-14 17:09:49,191 INFO L175 Difference]: Start difference. First operand has 390 places, 454 transitions, 1521 flow. Second operand 30 states and 9405 transitions. [2024-10-14 17:09:49,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 471 transitions, 1787 flow [2024-10-14 17:09:49,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 471 transitions, 1769 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-10-14 17:09:49,201 INFO L231 Difference]: Finished difference. Result has 423 places, 464 transitions, 1655 flow [2024-10-14 17:09:49,201 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} [2024-10-14 17:09:49,202 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, 78 predicate places. [2024-10-14 17:09:49,203 INFO L471 AbstractCegarLoop]: Abstraction has has 423 places, 464 transitions, 1655 flow [2024-10-14 17:09:49,205 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) [2024-10-14 17:09:49,205 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:49,206 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] [2024-10-14 17:09:49,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-14 17:09:49,406 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 [2024-10-14 17:09:49,407 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)] === [2024-10-14 17:09:49,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:49,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1802028206, now seen corresponding path program 2 times [2024-10-14 17:09:49,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:49,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596936994] [2024-10-14 17:09:49,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:49,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:49,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 17:09:49,443 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 17:09:49,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 17:09:49,480 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 17:09:49,481 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 17:09:49,481 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-10-14 17:09:49,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-10-14 17:09:49,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-10-14 17:09:49,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-10-14 17:09:49,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-10-14 17:09:49,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-10-14 17:09:49,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2024-10-14 17:09:49,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-10-14 17:09:49,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-10-14 17:09:49,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-10-14 17:09:49,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-10-14 17:09:49,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-10-14 17:09:49,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-10-14 17:09:49,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-10-14 17:09:49,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-10-14 17:09:49,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-10-14 17:09:49,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-10-14 17:09:49,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-10-14 17:09:49,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-10-14 17:09:49,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-10-14 17:09:49,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-10-14 17:09:49,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-10-14 17:09:49,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-10-14 17:09:49,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 17:09:49,486 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1] [2024-10-14 17:09:49,488 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-14 17:09:49,488 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-14 17:09:49,516 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-14 17:09:49,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 446 places, 505 transitions, 1026 flow [2024-10-14 17:09:49,619 INFO L124 PetriNetUnfolderBase]: 126/1009 cut-off events. [2024-10-14 17:09:49,620 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-14 17:09:49,634 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. [2024-10-14 17:09:49,634 INFO L82 GeneralOperation]: Start removeDead. Operand has 446 places, 505 transitions, 1026 flow [2024-10-14 17:09:49,640 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 446 places, 505 transitions, 1026 flow [2024-10-14 17:09:49,641 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 17:09:49,641 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;@69ff39cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 17:09:49,642 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-10-14 17:09:49,644 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 17:09:49,644 INFO L124 PetriNetUnfolderBase]: 4/60 cut-off events. [2024-10-14 17:09:49,644 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:09:49,644 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:49,645 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] [2024-10-14 17:09:49,645 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)] === [2024-10-14 17:09:49,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:49,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1380409905, now seen corresponding path program 1 times [2024-10-14 17:09:49,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:49,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267349926] [2024-10-14 17:09:49,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:49,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:49,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:49,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:09:49,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:09:49,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267349926] [2024-10-14 17:09:49,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267349926] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:09:49,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:09:49,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 17:09:49,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922195682] [2024-10-14 17:09:49,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:09:49,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:09:49,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:09:49,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:09:49,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:09:49,684 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 405 out of 505 [2024-10-14 17:09:49,688 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) [2024-10-14 17:09:49,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:09:49,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 405 of 505 [2024-10-14 17:09:49,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:09:52,682 INFO L124 PetriNetUnfolderBase]: 3251/22828 cut-off events. [2024-10-14 17:09:52,683 INFO L125 PetriNetUnfolderBase]: For 151/155 co-relation queries the response was YES. [2024-10-14 17:09:52,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27608 conditions, 22828 events. 3251/22828 cut-off events. For 151/155 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. [2024-10-14 17:09:52,826 INFO L140 encePairwiseOnDemand]: 448/505 looper letters, 41 selfloop transitions, 2 changer transitions 0/444 dead transitions. [2024-10-14 17:09:52,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 444 transitions, 990 flow [2024-10-14 17:09:52,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:09:52,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:09:52,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1314 transitions. [2024-10-14 17:09:52,829 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8673267326732673 [2024-10-14 17:09:52,829 INFO L175 Difference]: Start difference. First operand has 446 places, 505 transitions, 1026 flow. Second operand 3 states and 1314 transitions. [2024-10-14 17:09:52,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 444 transitions, 990 flow [2024-10-14 17:09:52,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 444 transitions, 990 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:09:52,835 INFO L231 Difference]: Finished difference. Result has 441 places, 444 transitions, 914 flow [2024-10-14 17:09:52,836 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} [2024-10-14 17:09:52,836 INFO L277 CegarLoopForPetriNet]: 446 programPoint places, -5 predicate places. [2024-10-14 17:09:52,836 INFO L471 AbstractCegarLoop]: Abstraction has has 441 places, 444 transitions, 914 flow [2024-10-14 17:09:52,837 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) [2024-10-14 17:09:52,837 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:52,837 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] [2024-10-14 17:09:52,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 17:09:52,837 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)] === [2024-10-14 17:09:52,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:52,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1875125979, now seen corresponding path program 1 times [2024-10-14 17:09:52,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:52,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339984569] [2024-10-14 17:09:52,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:52,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:52,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:52,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:09:52,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:09:52,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339984569] [2024-10-14 17:09:52,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339984569] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:09:52,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797289587] [2024-10-14 17:09:52,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:52,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:09:52,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:09:52,890 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) [2024-10-14 17:09:52,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 17:09:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:52,963 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 17:09:52,965 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:09:52,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:09:52,983 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:09:53,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:09:53,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797289587] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:09:53,008 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:09:53,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-14 17:09:53,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356615292] [2024-10-14 17:09:53,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:09:53,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 17:09:53,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:09:53,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 17:09:53,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-14 17:09:53,026 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 402 out of 505 [2024-10-14 17:09:53,030 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) [2024-10-14 17:09:53,030 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:09:53,030 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 402 of 505 [2024-10-14 17:09:53,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:09:56,174 INFO L124 PetriNetUnfolderBase]: 3251/22835 cut-off events. [2024-10-14 17:09:56,174 INFO L125 PetriNetUnfolderBase]: For 152/156 co-relation queries the response was YES. [2024-10-14 17:09:56,272 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. [2024-10-14 17:09:56,335 INFO L140 encePairwiseOnDemand]: 499/505 looper letters, 45 selfloop transitions, 9 changer transitions 0/452 dead transitions. [2024-10-14 17:09:56,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 452 transitions, 1040 flow [2024-10-14 17:09:56,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 17:09:56,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-14 17:09:56,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3674 transitions. [2024-10-14 17:09:56,342 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8083608360836083 [2024-10-14 17:09:56,342 INFO L175 Difference]: Start difference. First operand has 441 places, 444 transitions, 914 flow. Second operand 9 states and 3674 transitions. [2024-10-14 17:09:56,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 452 transitions, 1040 flow [2024-10-14 17:09:56,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 452 transitions, 1038 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:09:56,349 INFO L231 Difference]: Finished difference. Result has 451 places, 450 transitions, 962 flow [2024-10-14 17:09:56,349 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} [2024-10-14 17:09:56,350 INFO L277 CegarLoopForPetriNet]: 446 programPoint places, 5 predicate places. [2024-10-14 17:09:56,350 INFO L471 AbstractCegarLoop]: Abstraction has has 451 places, 450 transitions, 962 flow [2024-10-14 17:09:56,351 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) [2024-10-14 17:09:56,351 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:56,351 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] [2024-10-14 17:09:56,368 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-14 17:09:56,552 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 [2024-10-14 17:09:56,553 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)] === [2024-10-14 17:09:56,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:56,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1739394907, now seen corresponding path program 2 times [2024-10-14 17:09:56,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:56,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32679556] [2024-10-14 17:09:56,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:56,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:56,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:56,655 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:09:56,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:09:56,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32679556] [2024-10-14 17:09:56,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32679556] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:09:56,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9918876] [2024-10-14 17:09:56,656 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 17:09:56,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:09:56,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:09:56,658 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) [2024-10-14 17:09:56,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 17:09:56,734 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 17:09:56,734 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:09:56,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-14 17:09:56,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:09:56,774 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 [2024-10-14 17:09:56,794 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 [2024-10-14 17:09:56,825 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:09:56,825 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 [2024-10-14 17:09:56,862 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:09:56,862 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 [2024-10-14 17:09:56,891 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 17:09:56,892 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:09:56,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9918876] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:09:56,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:09:56,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-10-14 17:09:56,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474217531] [2024-10-14 17:09:56,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:09:56,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 17:09:56,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:09:56,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 17:09:56,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-14 17:09:57,201 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 505 [2024-10-14 17:09:57,204 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) [2024-10-14 17:09:57,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:09:57,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 505 [2024-10-14 17:09:57,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand