./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_70-funloop_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_70-funloop_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 2a10f98c1a89e2ac521234c9e4f0eca565cc5bc1484e9c7d67d861e216c6f9ba --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 17:09:21,107 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 17:09:21,159 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-14 17:09:21,164 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 17:09:21,166 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 17:09:21,185 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 17:09:21,185 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 17:09:21,186 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 17:09:21,186 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 17:09:21,189 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 17:09:21,189 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 17:09:21,189 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 17:09:21,189 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 17:09:21,190 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 17:09:21,191 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 17:09:21,191 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 17:09:21,191 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 17:09:21,191 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 17:09:21,192 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 17:09:21,192 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 17:09:21,192 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 17:09:21,192 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 17:09:21,193 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-14 17:09:21,193 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 17:09:21,193 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 17:09:21,193 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 17:09:21,193 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 17:09:21,193 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 17:09:21,194 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 17:09:21,194 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 17:09:21,194 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 17:09:21,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:09:21,194 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 17:09:21,194 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 17:09:21,195 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 17:09:21,195 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 17:09:21,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 17:09:21,195 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 17:09:21,196 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 17:09:21,196 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 17:09:21,196 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 17:09:21,196 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a10f98c1a89e2ac521234c9e4f0eca565cc5bc1484e9c7d67d861e216c6f9ba [2024-10-14 17:09:21,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 17:09:21,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 17:09:21,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 17:09:21,406 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 17:09:21,406 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 17:09:21,407 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i [2024-10-14 17:09:22,632 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 17:09:22,821 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 17:09:22,821 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i [2024-10-14 17:09:22,840 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5880e10d3/7e0652cd78ec477383e40a93c692a307/FLAG875eba327 [2024-10-14 17:09:23,203 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5880e10d3/7e0652cd78ec477383e40a93c692a307 [2024-10-14 17:09:23,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 17:09:23,207 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 17:09:23,209 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 17:09:23,209 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 17:09:23,213 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 17:09:23,213 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:09:23" (1/1) ... [2024-10-14 17:09:23,214 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6feb83d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:23, skipping insertion in model container [2024-10-14 17:09:23,214 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:09:23" (1/1) ... [2024-10-14 17:09:23,252 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 17:09:23,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:09:23,663 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 17:09:23,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:09:23,795 INFO L204 MainTranslator]: Completed translation [2024-10-14 17:09:23,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:23 WrapperNode [2024-10-14 17:09:23,796 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 17:09:23,797 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 17:09:23,797 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 17:09:23,797 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 17:09:23,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:23" (1/1) ... [2024-10-14 17:09:23,828 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:23" (1/1) ... [2024-10-14 17:09:23,866 INFO L138 Inliner]: procedures = 272, calls = 36, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 291 [2024-10-14 17:09:23,867 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 17:09:23,867 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 17:09:23,867 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 17:09:23,867 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 17:09:23,875 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:23" (1/1) ... [2024-10-14 17:09:23,876 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:23" (1/1) ... [2024-10-14 17:09:23,880 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:23" (1/1) ... [2024-10-14 17:09:23,880 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:23" (1/1) ... [2024-10-14 17:09:23,903 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:23" (1/1) ... [2024-10-14 17:09:23,912 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:23" (1/1) ... [2024-10-14 17:09:23,918 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:23" (1/1) ... [2024-10-14 17:09:23,919 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:23" (1/1) ... [2024-10-14 17:09:23,927 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 17:09:23,929 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 17:09:23,929 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 17:09:23,933 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 17:09:23,934 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:23" (1/1) ... [2024-10-14 17:09:23,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:09:23,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:09:23,970 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 17:09:23,973 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 17:09:24,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 17:09:24,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 17:09:24,015 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-14 17:09:24,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-14 17:09:24,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-14 17:09:24,016 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-14 17:09:24,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 17:09:24,016 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-14 17:09:24,016 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-14 17:09:24,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-14 17:09:24,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 17:09:24,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 17:09:24,018 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 17:09:24,125 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 17:09:24,127 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 17:09:24,484 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 17:09:24,484 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 17:09:24,528 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 17:09:24,530 INFO L314 CfgBuilder]: Removed 25 assume(true) statements. [2024-10-14 17:09:24,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:09:24 BoogieIcfgContainer [2024-10-14 17:09:24,531 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 17:09:24,532 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 17:09:24,532 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 17:09:24,535 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 17:09:24,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:09:23" (1/3) ... [2024-10-14 17:09:24,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ebff5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:09:24, skipping insertion in model container [2024-10-14 17:09:24,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:23" (2/3) ... [2024-10-14 17:09:24,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ebff5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:09:24, skipping insertion in model container [2024-10-14 17:09:24,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:09:24" (3/3) ... [2024-10-14 17:09:24,537 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_70-funloop_racefree.i [2024-10-14 17:09:24,550 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 17:09:24,550 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-10-14 17:09:24,550 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 17:09:24,617 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-14 17:09:24,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 261 places, 293 transitions, 593 flow [2024-10-14 17:09:24,796 INFO L124 PetriNetUnfolderBase]: 52/434 cut-off events. [2024-10-14 17:09:24,796 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 17:09:24,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 439 conditions, 434 events. 52/434 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1870 event pairs, 0 based on Foata normal form. 0/360 useless extension candidates. Maximal degree in co-relation 257. Up to 8 conditions per place. [2024-10-14 17:09:24,806 INFO L82 GeneralOperation]: Start removeDead. Operand has 261 places, 293 transitions, 593 flow [2024-10-14 17:09:24,814 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 261 places, 293 transitions, 593 flow [2024-10-14 17:09:24,822 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 17:09:24,827 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;@62047aaf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 17:09:24,827 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-10-14 17:09:24,837 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 17:09:24,837 INFO L124 PetriNetUnfolderBase]: 5/61 cut-off events. [2024-10-14 17:09:24,837 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:09:24,837 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:24,838 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 17:09:24,838 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-14 17:09:24,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:24,844 INFO L85 PathProgramCache]: Analyzing trace with hash -897242055, now seen corresponding path program 1 times [2024-10-14 17:09:24,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:24,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200158032] [2024-10-14 17:09:24,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:24,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:24,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:25,096 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 17:09:25,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:09:25,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200158032] [2024-10-14 17:09:25,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200158032] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:09:25,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:09:25,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 17:09:25,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348651185] [2024-10-14 17:09:25,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:09:25,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:09:25,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:09:25,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:09:25,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:09:25,156 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 293 [2024-10-14 17:09:25,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 293 transitions, 593 flow. Second operand has 3 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 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 17:09:25,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:09:25,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 293 [2024-10-14 17:09:25,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:09:25,426 INFO L124 PetriNetUnfolderBase]: 98/1324 cut-off events. [2024-10-14 17:09:25,427 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-10-14 17:09:25,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1517 conditions, 1324 events. 98/1324 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 9021 event pairs, 72 based on Foata normal form. 228/1438 useless extension candidates. Maximal degree in co-relation 1331. Up to 187 conditions per place. [2024-10-14 17:09:25,439 INFO L140 encePairwiseOnDemand]: 261/293 looper letters, 23 selfloop transitions, 2 changer transitions 0/261 dead transitions. [2024-10-14 17:09:25,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 261 transitions, 579 flow [2024-10-14 17:09:25,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:09:25,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:09:25,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 770 transitions. [2024-10-14 17:09:25,458 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.875995449374289 [2024-10-14 17:09:25,461 INFO L175 Difference]: Start difference. First operand has 261 places, 293 transitions, 593 flow. Second operand 3 states and 770 transitions. [2024-10-14 17:09:25,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 261 transitions, 579 flow [2024-10-14 17:09:25,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 261 transitions, 579 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:09:25,473 INFO L231 Difference]: Finished difference. Result has 260 places, 261 transitions, 539 flow [2024-10-14 17:09:25,475 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=539, PETRI_PLACES=260, PETRI_TRANSITIONS=261} [2024-10-14 17:09:25,480 INFO L277 CegarLoopForPetriNet]: 261 programPoint places, -1 predicate places. [2024-10-14 17:09:25,480 INFO L471 AbstractCegarLoop]: Abstraction has has 260 places, 261 transitions, 539 flow [2024-10-14 17:09:25,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 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 17:09:25,481 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:25,482 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 17:09:25,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 17:09:25,482 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-14 17:09:25,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:25,483 INFO L85 PathProgramCache]: Analyzing trace with hash -786908097, now seen corresponding path program 1 times [2024-10-14 17:09:25,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:25,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672471562] [2024-10-14 17:09:25,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:25,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:25,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:25,635 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 17:09:25,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:09:25,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672471562] [2024-10-14 17:09:25,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672471562] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:09:25,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719440230] [2024-10-14 17:09:25,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:25,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:09:25,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:09:25,639 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 17:09:25,640 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 17:09:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:25,727 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 17:09:25,731 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:09:25,782 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 17:09:25,783 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:09:25,825 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 17:09:25,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719440230] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:09:25,826 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:09:25,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-14 17:09:25,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185931159] [2024-10-14 17:09:25,827 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:09:25,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 17:09:25,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:09:25,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 17:09:25,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-14 17:09:25,863 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 293 [2024-10-14 17:09:25,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 261 transitions, 539 flow. Second operand has 10 states, 10 states have (on average 236.8) internal successors, (2368), 10 states have internal predecessors, (2368), 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 17:09:25,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:09:25,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 293 [2024-10-14 17:09:25,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:09:26,165 INFO L124 PetriNetUnfolderBase]: 98/1331 cut-off events. [2024-10-14 17:09:26,165 INFO L125 PetriNetUnfolderBase]: For 7/9 co-relation queries the response was YES. [2024-10-14 17:09:26,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1543 conditions, 1331 events. 98/1331 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 9042 event pairs, 72 based on Foata normal form. 2/1219 useless extension candidates. Maximal degree in co-relation 1507. Up to 187 conditions per place. [2024-10-14 17:09:26,171 INFO L140 encePairwiseOnDemand]: 287/293 looper letters, 27 selfloop transitions, 9 changer transitions 0/269 dead transitions. [2024-10-14 17:09:26,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 269 transitions, 629 flow [2024-10-14 17:09:26,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 17:09:26,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-14 17:09:26,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2153 transitions. [2024-10-14 17:09:26,175 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8164580963215775 [2024-10-14 17:09:26,176 INFO L175 Difference]: Start difference. First operand has 260 places, 261 transitions, 539 flow. Second operand 9 states and 2153 transitions. [2024-10-14 17:09:26,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 269 transitions, 629 flow [2024-10-14 17:09:26,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 269 transitions, 627 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:09:26,180 INFO L231 Difference]: Finished difference. Result has 270 places, 267 transitions, 587 flow [2024-10-14 17:09:26,180 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=537, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=587, PETRI_PLACES=270, PETRI_TRANSITIONS=267} [2024-10-14 17:09:26,181 INFO L277 CegarLoopForPetriNet]: 261 programPoint places, 9 predicate places. [2024-10-14 17:09:26,181 INFO L471 AbstractCegarLoop]: Abstraction has has 270 places, 267 transitions, 587 flow [2024-10-14 17:09:26,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 236.8) internal successors, (2368), 10 states have internal predecessors, (2368), 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 17:09:26,182 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:26,183 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 17:09:26,196 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 17:09:26,390 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 17:09:26,390 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-14 17:09:26,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:26,391 INFO L85 PathProgramCache]: Analyzing trace with hash -13107073, now seen corresponding path program 2 times [2024-10-14 17:09:26,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:26,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99334278] [2024-10-14 17:09:26,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:26,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:26,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:26,524 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 17:09:26,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:09:26,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99334278] [2024-10-14 17:09:26,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99334278] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:09:26,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403830033] [2024-10-14 17:09:26,525 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 17:09:26,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:09:26,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:09:26,527 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 17:09:26,528 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 17:09:26,593 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 17:09:26,593 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:09:26,594 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-14 17:09:26,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:09:26,670 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 17:09:26,697 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 17:09:26,736 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:09:26,737 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 17:09:26,781 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:09:26,782 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 17:09:26,812 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 17:09:26,812 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:09:26,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403830033] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:09:26,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:09:26,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-10-14 17:09:26,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529542768] [2024-10-14 17:09:26,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:09:26,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 17:09:26,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:09:26,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 17:09:26,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-14 17:09:27,050 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 293 [2024-10-14 17:09:27,052 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 267 transitions, 587 flow. Second operand has 8 states, 8 states have (on average 186.125) internal successors, (1489), 8 states have internal predecessors, (1489), 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 17:09:27,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:09:27,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 293 [2024-10-14 17:09:27,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:09:27,811 INFO L124 PetriNetUnfolderBase]: 1430/5605 cut-off events. [2024-10-14 17:09:27,811 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-10-14 17:09:27,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8352 conditions, 5605 events. 1430/5605 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 50791 event pairs, 1148 based on Foata normal form. 1/5096 useless extension candidates. Maximal degree in co-relation 8287. Up to 2528 conditions per place. [2024-10-14 17:09:27,838 INFO L140 encePairwiseOnDemand]: 281/293 looper letters, 134 selfloop transitions, 11 changer transitions 0/335 dead transitions. [2024-10-14 17:09:27,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 335 transitions, 1013 flow [2024-10-14 17:09:27,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 17:09:27,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-14 17:09:27,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1627 transitions. [2024-10-14 17:09:27,842 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6941126279863481 [2024-10-14 17:09:27,843 INFO L175 Difference]: Start difference. First operand has 270 places, 267 transitions, 587 flow. Second operand 8 states and 1627 transitions. [2024-10-14 17:09:27,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 335 transitions, 1013 flow [2024-10-14 17:09:27,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 335 transitions, 1007 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-14 17:09:27,850 INFO L231 Difference]: Finished difference. Result has 281 places, 274 transitions, 648 flow [2024-10-14 17:09:27,851 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=581, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=648, PETRI_PLACES=281, PETRI_TRANSITIONS=274} [2024-10-14 17:09:27,852 INFO L277 CegarLoopForPetriNet]: 261 programPoint places, 20 predicate places. [2024-10-14 17:09:27,852 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 274 transitions, 648 flow [2024-10-14 17:09:27,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 186.125) internal successors, (1489), 8 states have internal predecessors, (1489), 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 17:09:27,853 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:27,854 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 17:09:27,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-14 17:09:28,054 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 17:09:28,055 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-14 17:09:28,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:28,056 INFO L85 PathProgramCache]: Analyzing trace with hash -2068178222, now seen corresponding path program 1 times [2024-10-14 17:09:28,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:28,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065752305] [2024-10-14 17:09:28,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:28,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:28,227 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 17:09:28,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:09:28,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065752305] [2024-10-14 17:09:28,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065752305] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:09:28,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168364418] [2024-10-14 17:09:28,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:28,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:09:28,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:09:28,232 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 17:09:28,234 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 17:09:28,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:28,307 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 17:09:28,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:09:28,351 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 17:09:28,351 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:09:28,427 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 17:09:28,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [168364418] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:09:28,427 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:09:28,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-14 17:09:28,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123375362] [2024-10-14 17:09:28,428 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:09:28,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-14 17:09:28,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:09:28,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-14 17:09:28,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-14 17:09:28,456 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 293 [2024-10-14 17:09:28,460 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 274 transitions, 648 flow. Second operand has 18 states, 18 states have (on average 236.94444444444446) internal successors, (4265), 18 states have internal predecessors, (4265), 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 17:09:28,460 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:09:28,460 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 293 [2024-10-14 17:09:28,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:09:28,785 INFO L124 PetriNetUnfolderBase]: 112/1389 cut-off events. [2024-10-14 17:09:28,785 INFO L125 PetriNetUnfolderBase]: For 35/41 co-relation queries the response was YES. [2024-10-14 17:09:28,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1734 conditions, 1389 events. 112/1389 cut-off events. For 35/41 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 9621 event pairs, 74 based on Foata normal form. 4/1277 useless extension candidates. Maximal degree in co-relation 1592. Up to 197 conditions per place. [2024-10-14 17:09:28,792 INFO L140 encePairwiseOnDemand]: 287/293 looper letters, 31 selfloop transitions, 21 changer transitions 0/292 dead transitions. [2024-10-14 17:09:28,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 292 transitions, 840 flow [2024-10-14 17:09:28,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-14 17:09:28,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-14 17:09:28,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4991 transitions. [2024-10-14 17:09:28,799 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8111490329920364 [2024-10-14 17:09:28,799 INFO L175 Difference]: Start difference. First operand has 281 places, 274 transitions, 648 flow. Second operand 21 states and 4991 transitions. [2024-10-14 17:09:28,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 292 transitions, 840 flow [2024-10-14 17:09:28,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 292 transitions, 833 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:09:28,806 INFO L231 Difference]: Finished difference. Result has 304 places, 287 transitions, 771 flow [2024-10-14 17:09:28,806 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=641, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=771, PETRI_PLACES=304, PETRI_TRANSITIONS=287} [2024-10-14 17:09:28,807 INFO L277 CegarLoopForPetriNet]: 261 programPoint places, 43 predicate places. [2024-10-14 17:09:28,808 INFO L471 AbstractCegarLoop]: Abstraction has has 304 places, 287 transitions, 771 flow [2024-10-14 17:09:28,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 236.94444444444446) internal successors, (4265), 18 states have internal predecessors, (4265), 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 17:09:28,810 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:28,810 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 17:09:28,823 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 17:09:29,014 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 17:09:29,016 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-14 17:09:29,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:29,016 INFO L85 PathProgramCache]: Analyzing trace with hash 366924626, now seen corresponding path program 2 times [2024-10-14 17:09:29,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:29,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930587674] [2024-10-14 17:09:29,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:29,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:29,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:29,249 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 17:09:29,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:09:29,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930587674] [2024-10-14 17:09:29,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930587674] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:09:29,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128935772] [2024-10-14 17:09:29,251 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 17:09:29,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:09:29,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:09:29,255 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 17:09:29,256 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 17:09:29,326 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 17:09:29,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:09:29,327 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-14 17:09:29,330 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:09:29,340 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 17:09:29,370 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 17:09:29,392 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:09:29,392 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 17:09:29,420 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:09:29,420 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 17:09:29,445 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 17:09:29,446 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:09:29,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128935772] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:09:29,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:09:29,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-14 17:09:29,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101225044] [2024-10-14 17:09:29,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:09:29,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:09:29,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:09:29,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:09:29,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-14 17:09:29,614 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 293 [2024-10-14 17:09:29,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 287 transitions, 771 flow. Second operand has 6 states, 6 states have (on average 188.66666666666666) internal successors, (1132), 6 states have internal predecessors, (1132), 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 17:09:29,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:09:29,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 293 [2024-10-14 17:09:29,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:09:30,431 INFO L124 PetriNetUnfolderBase]: 1513/5815 cut-off events. [2024-10-14 17:09:30,432 INFO L125 PetriNetUnfolderBase]: For 318/322 co-relation queries the response was YES. [2024-10-14 17:09:30,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9196 conditions, 5815 events. 1513/5815 cut-off events. For 318/322 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 52807 event pairs, 1036 based on Foata normal form. 29/5358 useless extension candidates. Maximal degree in co-relation 9047. Up to 2679 conditions per place. [2024-10-14 17:09:30,457 INFO L140 encePairwiseOnDemand]: 266/293 looper letters, 107 selfloop transitions, 92 changer transitions 0/403 dead transitions. [2024-10-14 17:09:30,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 403 transitions, 1423 flow [2024-10-14 17:09:30,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:09:30,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:09:30,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1310 transitions. [2024-10-14 17:09:30,460 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.745164960182025 [2024-10-14 17:09:30,460 INFO L175 Difference]: Start difference. First operand has 304 places, 287 transitions, 771 flow. Second operand 6 states and 1310 transitions. [2024-10-14 17:09:30,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 403 transitions, 1423 flow [2024-10-14 17:09:30,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 403 transitions, 1399 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-14 17:09:30,468 INFO L231 Difference]: Finished difference. Result has 308 places, 371 transitions, 1355 flow [2024-10-14 17:09:30,469 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=747, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1355, PETRI_PLACES=308, PETRI_TRANSITIONS=371} [2024-10-14 17:09:30,469 INFO L277 CegarLoopForPetriNet]: 261 programPoint places, 47 predicate places. [2024-10-14 17:09:30,469 INFO L471 AbstractCegarLoop]: Abstraction has has 308 places, 371 transitions, 1355 flow [2024-10-14 17:09:30,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 188.66666666666666) internal successors, (1132), 6 states have internal predecessors, (1132), 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 17:09:30,470 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:30,470 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 17:09:30,483 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 17:09:30,671 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 17:09:30,671 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-14 17:09:30,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:30,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1510237545, now seen corresponding path program 1 times [2024-10-14 17:09:30,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:30,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218544623] [2024-10-14 17:09:30,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:30,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:30,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:30,930 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 17:09:30,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:09:30,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218544623] [2024-10-14 17:09:30,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218544623] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:09:30,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047916750] [2024-10-14 17:09:30,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:30,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:09:30,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:09:30,934 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 17:09:30,937 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 17:09:31,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:31,022 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-14 17:09:31,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:09:31,089 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 17:09:31,089 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:09:31,242 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 17:09:31,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047916750] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:09:31,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:09:31,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-14 17:09:31,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984693627] [2024-10-14 17:09:31,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:09:31,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-14 17:09:31,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:09:31,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-14 17:09:31,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-14 17:09:31,280 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 293 [2024-10-14 17:09:31,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 371 transitions, 1355 flow. Second operand has 23 states, 23 states have (on average 237.04347826086956) internal successors, (5452), 23 states have internal predecessors, (5452), 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 17:09:31,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:09:31,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 293 [2024-10-14 17:09:31,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:09:31,737 INFO L124 PetriNetUnfolderBase]: 296/2195 cut-off events. [2024-10-14 17:09:31,738 INFO L125 PetriNetUnfolderBase]: For 551/609 co-relation queries the response was YES. [2024-10-14 17:09:31,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3688 conditions, 2195 events. 296/2195 cut-off events. For 551/609 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 17254 event pairs, 72 based on Foata normal form. 3/2040 useless extension candidates. Maximal degree in co-relation 3459. Up to 438 conditions per place. [2024-10-14 17:09:31,750 INFO L140 encePairwiseOnDemand]: 287/293 looper letters, 34 selfloop transitions, 30 changer transitions 0/388 dead transitions. [2024-10-14 17:09:31,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 388 transitions, 1605 flow [2024-10-14 17:09:31,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-14 17:09:31,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-14 17:09:31,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 7117 transitions. [2024-10-14 17:09:31,760 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.80967007963595 [2024-10-14 17:09:31,760 INFO L175 Difference]: Start difference. First operand has 308 places, 371 transitions, 1355 flow. Second operand 30 states and 7117 transitions. [2024-10-14 17:09:31,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 388 transitions, 1605 flow [2024-10-14 17:09:31,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 388 transitions, 1587 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-10-14 17:09:31,770 INFO L231 Difference]: Finished difference. Result has 341 places, 381 transitions, 1489 flow [2024-10-14 17:09:31,770 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=1337, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1489, PETRI_PLACES=341, PETRI_TRANSITIONS=381} [2024-10-14 17:09:31,771 INFO L277 CegarLoopForPetriNet]: 261 programPoint places, 80 predicate places. [2024-10-14 17:09:31,771 INFO L471 AbstractCegarLoop]: Abstraction has has 341 places, 381 transitions, 1489 flow [2024-10-14 17:09:31,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 237.04347826086956) internal successors, (5452), 23 states have internal predecessors, (5452), 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 17:09:31,773 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:31,773 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 17:09:31,786 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 17:09:31,977 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 17:09:31,978 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-14 17:09:31,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:31,979 INFO L85 PathProgramCache]: Analyzing trace with hash 920359261, now seen corresponding path program 2 times [2024-10-14 17:09:31,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:31,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461860032] [2024-10-14 17:09:31,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:31,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 17:09:32,000 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 17:09:32,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 17:09:32,043 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 17:09:32,044 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 17:09:32,045 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-10-14 17:09:32,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-10-14 17:09:32,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-10-14 17:09:32,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-10-14 17:09:32,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-10-14 17:09:32,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-10-14 17:09:32,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-10-14 17:09:32,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-10-14 17:09:32,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-10-14 17:09:32,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-10-14 17:09:32,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-10-14 17:09:32,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-10-14 17:09:32,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-10-14 17:09:32,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-10-14 17:09:32,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-10-14 17:09:32,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-10-14 17:09:32,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-10-14 17:09:32,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-10-14 17:09:32,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 17:09:32,051 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1] [2024-10-14 17:09:32,054 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-14 17:09:32,054 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-14 17:09:32,092 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-14 17:09:32,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 362 places, 408 transitions, 832 flow [2024-10-14 17:09:32,170 INFO L124 PetriNetUnfolderBase]: 87/718 cut-off events. [2024-10-14 17:09:32,170 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-14 17:09:32,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 730 conditions, 718 events. 87/718 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3730 event pairs, 0 based on Foata normal form. 0/595 useless extension candidates. Maximal degree in co-relation 436. Up to 12 conditions per place. [2024-10-14 17:09:32,180 INFO L82 GeneralOperation]: Start removeDead. Operand has 362 places, 408 transitions, 832 flow [2024-10-14 17:09:32,188 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 362 places, 408 transitions, 832 flow [2024-10-14 17:09:32,189 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 17:09:32,193 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;@62047aaf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 17:09:32,194 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-10-14 17:09:32,196 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 17:09:32,199 INFO L124 PetriNetUnfolderBase]: 5/61 cut-off events. [2024-10-14 17:09:32,199 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:09:32,199 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:32,199 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 17:09:32,199 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-14 17:09:32,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:32,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1482518727, now seen corresponding path program 1 times [2024-10-14 17:09:32,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:32,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717162115] [2024-10-14 17:09:32,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:32,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:32,224 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 17:09:32,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:09:32,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717162115] [2024-10-14 17:09:32,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717162115] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:09:32,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:09:32,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 17:09:32,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084271688] [2024-10-14 17:09:32,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:09:32,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:09:32,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:09:32,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:09:32,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:09:32,244 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 408 [2024-10-14 17:09:32,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 408 transitions, 832 flow. Second operand has 3 states, 3 states have (on average 330.3333333333333) internal successors, (991), 3 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:09:32,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:09:32,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 408 [2024-10-14 17:09:32,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:09:33,760 INFO L124 PetriNetUnfolderBase]: 1782/12841 cut-off events. [2024-10-14 17:09:33,761 INFO L125 PetriNetUnfolderBase]: For 126/133 co-relation queries the response was YES. [2024-10-14 17:09:33,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15505 conditions, 12841 events. 1782/12841 cut-off events. For 126/133 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 157071 event pairs, 1464 based on Foata normal form. 3189/14962 useless extension candidates. Maximal degree in co-relation 13811. Up to 2601 conditions per place. [2024-10-14 17:09:33,842 INFO L140 encePairwiseOnDemand]: 363/408 looper letters, 33 selfloop transitions, 2 changer transitions 0/361 dead transitions. [2024-10-14 17:09:33,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 361 transitions, 808 flow [2024-10-14 17:09:33,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:09:33,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:09:33,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1066 transitions. [2024-10-14 17:09:33,845 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8709150326797386 [2024-10-14 17:09:33,845 INFO L175 Difference]: Start difference. First operand has 362 places, 408 transitions, 832 flow. Second operand 3 states and 1066 transitions. [2024-10-14 17:09:33,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 361 transitions, 808 flow [2024-10-14 17:09:33,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 361 transitions, 808 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:09:33,851 INFO L231 Difference]: Finished difference. Result has 359 places, 361 transitions, 748 flow [2024-10-14 17:09:33,852 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=748, PETRI_PLACES=359, PETRI_TRANSITIONS=361} [2024-10-14 17:09:33,853 INFO L277 CegarLoopForPetriNet]: 362 programPoint places, -3 predicate places. [2024-10-14 17:09:33,853 INFO L471 AbstractCegarLoop]: Abstraction has has 359 places, 361 transitions, 748 flow [2024-10-14 17:09:33,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 330.3333333333333) internal successors, (991), 3 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:09:33,854 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:33,854 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 17:09:33,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 17:09:33,854 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-14 17:09:33,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:33,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1525263145, now seen corresponding path program 1 times [2024-10-14 17:09:33,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:33,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067171495] [2024-10-14 17:09:33,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:33,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:33,908 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 17:09:33,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:09:33,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067171495] [2024-10-14 17:09:33,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067171495] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:09:33,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116903502] [2024-10-14 17:09:33,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:33,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:09:33,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:09:33,911 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 17:09:33,915 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 17:09:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:33,986 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 17:09:33,988 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:09:34,010 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 17:09:34,011 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:09:34,034 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 17:09:34,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116903502] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:09:34,035 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:09:34,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-14 17:09:34,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668897780] [2024-10-14 17:09:34,035 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:09:34,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 17:09:34,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:09:34,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 17:09:34,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-14 17:09:34,063 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 408 [2024-10-14 17:09:34,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 361 transitions, 748 flow. Second operand has 10 states, 10 states have (on average 327.8) internal successors, (3278), 10 states have internal predecessors, (3278), 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 17:09:34,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:09:34,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 408 [2024-10-14 17:09:34,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:09:35,529 INFO L124 PetriNetUnfolderBase]: 1782/12848 cut-off events. [2024-10-14 17:09:35,529 INFO L125 PetriNetUnfolderBase]: For 127/134 co-relation queries the response was YES. [2024-10-14 17:09:35,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15531 conditions, 12848 events. 1782/12848 cut-off events. For 127/134 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 157118 event pairs, 1464 based on Foata normal form. 2/11782 useless extension candidates. Maximal degree in co-relation 15494. Up to 2601 conditions per place. [2024-10-14 17:09:35,601 INFO L140 encePairwiseOnDemand]: 402/408 looper letters, 37 selfloop transitions, 9 changer transitions 0/369 dead transitions. [2024-10-14 17:09:35,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 369 transitions, 858 flow [2024-10-14 17:09:35,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 17:09:35,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-14 17:09:35,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2982 transitions. [2024-10-14 17:09:35,606 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8120915032679739 [2024-10-14 17:09:35,606 INFO L175 Difference]: Start difference. First operand has 359 places, 361 transitions, 748 flow. Second operand 9 states and 2982 transitions. [2024-10-14 17:09:35,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 369 transitions, 858 flow [2024-10-14 17:09:35,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 369 transitions, 856 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:09:35,610 INFO L231 Difference]: Finished difference. Result has 369 places, 367 transitions, 796 flow [2024-10-14 17:09:35,611 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=796, PETRI_PLACES=369, PETRI_TRANSITIONS=367} [2024-10-14 17:09:35,611 INFO L277 CegarLoopForPetriNet]: 362 programPoint places, 7 predicate places. [2024-10-14 17:09:35,611 INFO L471 AbstractCegarLoop]: Abstraction has has 369 places, 367 transitions, 796 flow [2024-10-14 17:09:35,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 327.8) internal successors, (3278), 10 states have internal predecessors, (3278), 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 17:09:35,612 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:35,613 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 17:09:35,625 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 17:09:35,813 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 17:09:35,814 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-14 17:09:35,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:35,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1010514455, now seen corresponding path program 2 times [2024-10-14 17:09:35,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:35,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295484342] [2024-10-14 17:09:35,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:35,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:35,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:35,887 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 17:09:35,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:09:35,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295484342] [2024-10-14 17:09:35,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295484342] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:09:35,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206378330] [2024-10-14 17:09:35,888 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 17:09:35,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:09:35,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:09:35,889 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 17:09:35,890 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 17:09:35,956 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 17:09:35,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:09:35,957 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-14 17:09:35,959 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:09:35,991 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 17:09:36,008 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 17:09:36,033 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:09:36,033 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 17:09:36,065 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:09:36,065 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 17:09:36,089 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 17:09:36,090 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:09:36,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206378330] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:09:36,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:09:36,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-10-14 17:09:36,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405609351] [2024-10-14 17:09:36,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:09:36,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 17:09:36,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:09:36,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 17:09:36,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-14 17:09:36,387 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 408 [2024-10-14 17:09:36,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 367 transitions, 796 flow. Second operand has 8 states, 8 states have (on average 257.125) internal successors, (2057), 8 states have internal predecessors, (2057), 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 17:09:36,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:09:36,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 408 [2024-10-14 17:09:36,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:09:59,141 INFO L124 PetriNetUnfolderBase]: 82210/203550 cut-off events. [2024-10-14 17:09:59,142 INFO L125 PetriNetUnfolderBase]: For 468/468 co-relation queries the response was YES. [2024-10-14 17:09:59,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324373 conditions, 203550 events. 82210/203550 cut-off events. For 468/468 co-relation queries the response was YES. Maximal size of possible extension queue 3799. Compared 2759018 event pairs, 66469 based on Foata normal form. 1/187121 useless extension candidates. Maximal degree in co-relation 324307. Up to 114447 conditions per place. [2024-10-14 17:10:00,433 INFO L140 encePairwiseOnDemand]: 396/408 looper letters, 193 selfloop transitions, 11 changer transitions 0/464 dead transitions. [2024-10-14 17:10:00,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 464 transitions, 1398 flow [2024-10-14 17:10:00,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 17:10:00,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-14 17:10:00,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2254 transitions. [2024-10-14 17:10:00,437 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6905637254901961 [2024-10-14 17:10:00,437 INFO L175 Difference]: Start difference. First operand has 369 places, 367 transitions, 796 flow. Second operand 8 states and 2254 transitions. [2024-10-14 17:10:00,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 464 transitions, 1398 flow [2024-10-14 17:10:00,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 464 transitions, 1392 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-14 17:10:00,445 INFO L231 Difference]: Finished difference. Result has 380 places, 375 transitions, 861 flow [2024-10-14 17:10:00,446 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=861, PETRI_PLACES=380, PETRI_TRANSITIONS=375} [2024-10-14 17:10:00,446 INFO L277 CegarLoopForPetriNet]: 362 programPoint places, 18 predicate places. [2024-10-14 17:10:00,446 INFO L471 AbstractCegarLoop]: Abstraction has has 380 places, 375 transitions, 861 flow [2024-10-14 17:10:00,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 257.125) internal successors, (2057), 8 states have internal predecessors, (2057), 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 17:10:00,447 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:10:00,447 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 17:10:00,465 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-14 17:10:00,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:10:00,648 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-14 17:10:00,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:10:00,649 INFO L85 PathProgramCache]: Analyzing trace with hash 563367577, now seen corresponding path program 1 times [2024-10-14 17:10:00,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:10:00,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063218448] [2024-10-14 17:10:00,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:10:00,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:10:00,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:10:00,754 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 17:10:00,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:10:00,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063218448] [2024-10-14 17:10:00,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063218448] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:10:00,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231871188] [2024-10-14 17:10:00,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:10:00,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:10:00,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:10:00,757 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:10:00,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 17:10:00,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:10:00,839 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 17:10:00,840 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:10:00,867 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 17:10:00,867 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:10:00,930 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 17:10:00,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231871188] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:10:00,931 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:10:00,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-14 17:10:00,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904745594] [2024-10-14 17:10:00,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:10:00,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-14 17:10:00,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:10:00,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-14 17:10:00,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-14 17:10:00,956 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 408 [2024-10-14 17:10:00,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 375 transitions, 861 flow. Second operand has 18 states, 18 states have (on average 327.94444444444446) internal successors, (5903), 18 states have internal predecessors, (5903), 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 17:10:00,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:10:00,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 408 [2024-10-14 17:10:00,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:10:03,013 INFO L124 PetriNetUnfolderBase]: 1884/13856 cut-off events. [2024-10-14 17:10:03,013 INFO L125 PetriNetUnfolderBase]: For 164/175 co-relation queries the response was YES. [2024-10-14 17:10:03,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16897 conditions, 13856 events. 1884/13856 cut-off events. For 164/175 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 173850 event pairs, 1532 based on Foata normal form. 4/12697 useless extension candidates. Maximal degree in co-relation 16754. Up to 2742 conditions per place. [2024-10-14 17:10:03,114 INFO L140 encePairwiseOnDemand]: 402/408 looper letters, 41 selfloop transitions, 21 changer transitions 0/393 dead transitions. [2024-10-14 17:10:03,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 393 transitions, 1073 flow [2024-10-14 17:10:03,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-14 17:10:03,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-14 17:10:03,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6912 transitions. [2024-10-14 17:10:03,123 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8067226890756303 [2024-10-14 17:10:03,123 INFO L175 Difference]: Start difference. First operand has 380 places, 375 transitions, 861 flow. Second operand 21 states and 6912 transitions. [2024-10-14 17:10:03,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 393 transitions, 1073 flow [2024-10-14 17:10:03,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 393 transitions, 1071 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:10:03,130 INFO L231 Difference]: Finished difference. Result has 404 places, 388 transitions, 989 flow [2024-10-14 17:10:03,131 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=859, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=989, PETRI_PLACES=404, PETRI_TRANSITIONS=388} [2024-10-14 17:10:03,131 INFO L277 CegarLoopForPetriNet]: 362 programPoint places, 42 predicate places. [2024-10-14 17:10:03,131 INFO L471 AbstractCegarLoop]: Abstraction has has 404 places, 388 transitions, 989 flow [2024-10-14 17:10:03,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 327.94444444444446) internal successors, (5903), 18 states have internal predecessors, (5903), 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 17:10:03,133 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:10:03,133 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 17:10:03,149 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-14 17:10:03,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-14 17:10:03,334 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-14 17:10:03,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:10:03,335 INFO L85 PathProgramCache]: Analyzing trace with hash 898173209, now seen corresponding path program 2 times [2024-10-14 17:10:03,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:10:03,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148015831] [2024-10-14 17:10:03,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:10:03,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:10:03,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:10:03,552 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 17:10:03,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:10:03,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148015831] [2024-10-14 17:10:03,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148015831] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:10:03,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968328914] [2024-10-14 17:10:03,552 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 17:10:03,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:10:03,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:10:03,554 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:10:03,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-14 17:10:03,633 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 17:10:03,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:10:03,634 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-14 17:10:03,637 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:10:03,643 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 17:10:03,657 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 17:10:03,682 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:10:03,683 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 17:10:03,719 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:10:03,720 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 17:10:03,748 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 17:10:03,748 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:10:03,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968328914] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:10:03,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:10:03,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-14 17:10:03,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107654166] [2024-10-14 17:10:03,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:10:03,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:10:03,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:10:03,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:10:03,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-14 17:10:04,189 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 408 [2024-10-14 17:10:04,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 388 transitions, 989 flow. Second operand has 6 states, 6 states have (on average 259.6666666666667) internal successors, (1558), 6 states have internal predecessors, (1558), 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 17:10:04,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:10:04,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 408 [2024-10-14 17:10:04,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand