./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.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 8259c4061eb15e4ed63bc06f98acbb6dc3f9862bbe262b5cabdd3ad4658d3239 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 05:49:13,116 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 05:49:13,187 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-19 05:49:13,194 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 05:49:13,195 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 05:49:13,216 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 05:49:13,217 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 05:49:13,217 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 05:49:13,217 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 05:49:13,218 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 05:49:13,218 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 05:49:13,219 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 05:49:13,219 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 05:49:13,219 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 05:49:13,220 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 05:49:13,220 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 05:49:13,220 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 05:49:13,221 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 05:49:13,221 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 05:49:13,221 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 05:49:13,222 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 05:49:13,222 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 05:49:13,223 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-19 05:49:13,223 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 05:49:13,223 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 05:49:13,224 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 05:49:13,224 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 05:49:13,224 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 05:49:13,225 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 05:49:13,225 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 05:49:13,225 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 05:49:13,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:49:13,226 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 05:49:13,230 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 05:49:13,230 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 05:49:13,231 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 05:49:13,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 05:49:13,231 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 05:49:13,231 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 05:49:13,232 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 05:49:13,232 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 05:49:13,233 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8259c4061eb15e4ed63bc06f98acbb6dc3f9862bbe262b5cabdd3ad4658d3239 [2024-11-19 05:49:13,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 05:49:13,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 05:49:13,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 05:49:13,516 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 05:49:13,517 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 05:49:13,518 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i [2024-11-19 05:49:14,926 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 05:49:15,195 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 05:49:15,196 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i [2024-11-19 05:49:15,222 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fe31ca5a/4e0821dac729404eba059377df8a4e4f/FLAGd86de7c50 [2024-11-19 05:49:15,236 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fe31ca5a/4e0821dac729404eba059377df8a4e4f [2024-11-19 05:49:15,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 05:49:15,240 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 05:49:15,241 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 05:49:15,241 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 05:49:15,247 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 05:49:15,248 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:49:15" (1/1) ... [2024-11-19 05:49:15,249 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4af21c29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:15, skipping insertion in model container [2024-11-19 05:49:15,249 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:49:15" (1/1) ... [2024-11-19 05:49:15,294 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 05:49:15,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:49:15,824 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 05:49:15,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:49:15,939 INFO L204 MainTranslator]: Completed translation [2024-11-19 05:49:15,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:15 WrapperNode [2024-11-19 05:49:15,940 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 05:49:15,941 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 05:49:15,942 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 05:49:15,942 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 05:49:15,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:15" (1/1) ... [2024-11-19 05:49:15,974 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:15" (1/1) ... [2024-11-19 05:49:16,021 INFO L138 Inliner]: procedures = 263, calls = 72, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 173 [2024-11-19 05:49:16,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 05:49:16,023 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 05:49:16,023 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 05:49:16,023 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 05:49:16,034 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:15" (1/1) ... [2024-11-19 05:49:16,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:15" (1/1) ... [2024-11-19 05:49:16,045 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:15" (1/1) ... [2024-11-19 05:49:16,046 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:15" (1/1) ... [2024-11-19 05:49:16,061 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:15" (1/1) ... [2024-11-19 05:49:16,071 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:15" (1/1) ... [2024-11-19 05:49:16,073 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:15" (1/1) ... [2024-11-19 05:49:16,078 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:15" (1/1) ... [2024-11-19 05:49:16,081 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 05:49:16,086 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 05:49:16,086 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 05:49:16,086 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 05:49:16,087 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:15" (1/1) ... [2024-11-19 05:49:16,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:49:16,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:49:16,134 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 05:49:16,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 05:49:16,184 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 05:49:16,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-19 05:49:16,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 05:49:16,184 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 05:49:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 05:49:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-19 05:49:16,185 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-19 05:49:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 05:49:16,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 05:49:16,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 05:49:16,187 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 05:49:16,312 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 05:49:16,314 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 05:49:16,671 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 05:49:16,673 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 05:49:16,709 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 05:49:16,709 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-19 05:49:16,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:49:16 BoogieIcfgContainer [2024-11-19 05:49:16,710 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 05:49:16,719 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 05:49:16,719 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 05:49:16,727 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 05:49:16,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:49:15" (1/3) ... [2024-11-19 05:49:16,728 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e837ac1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:49:16, skipping insertion in model container [2024-11-19 05:49:16,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:15" (2/3) ... [2024-11-19 05:49:16,728 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e837ac1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:49:16, skipping insertion in model container [2024-11-19 05:49:16,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:49:16" (3/3) ... [2024-11-19 05:49:16,730 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_03-funloop_simple.i [2024-11-19 05:49:16,748 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 05:49:16,749 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-19 05:49:16,750 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 05:49:16,825 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 05:49:16,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 181 transitions, 366 flow [2024-11-19 05:49:16,943 INFO L124 PetriNetUnfolderBase]: 6/180 cut-off events. [2024-11-19 05:49:16,945 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:49:16,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 180 events. 6/180 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 212 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2024-11-19 05:49:16,954 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 181 transitions, 366 flow [2024-11-19 05:49:16,961 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 178 places, 180 transitions, 363 flow [2024-11-19 05:49:16,974 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:49:16,982 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;@6493978d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:49:16,983 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-19 05:49:17,015 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:49:17,015 INFO L124 PetriNetUnfolderBase]: 4/112 cut-off events. [2024-11-19 05:49:17,015 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:49:17,016 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:17,017 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:17,017 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 05:49:17,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:17,023 INFO L85 PathProgramCache]: Analyzing trace with hash -211118510, now seen corresponding path program 1 times [2024-11-19 05:49:17,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:17,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079263905] [2024-11-19 05:49:17,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:17,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:17,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:17,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:17,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079263905] [2024-11-19 05:49:17,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079263905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:17,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:17,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:49:17,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960339870] [2024-11-19 05:49:17,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:17,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:49:17,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:17,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:49:17,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:49:17,554 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 181 [2024-11-19 05:49:17,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 180 transitions, 363 flow. Second operand has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:17,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:17,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 181 [2024-11-19 05:49:17,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:17,695 INFO L124 PetriNetUnfolderBase]: 14/335 cut-off events. [2024-11-19 05:49:17,696 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:49:17,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 369 conditions, 335 events. 14/335 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 776 event pairs, 6 based on Foata normal form. 11/323 useless extension candidates. Maximal degree in co-relation 273. Up to 29 conditions per place. [2024-11-19 05:49:17,702 INFO L140 encePairwiseOnDemand]: 175/181 looper letters, 10 selfloop transitions, 2 changer transitions 0/178 dead transitions. [2024-11-19 05:49:17,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 178 transitions, 383 flow [2024-11-19 05:49:17,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:49:17,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:49:17,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 518 transitions. [2024-11-19 05:49:17,721 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9539594843462247 [2024-11-19 05:49:17,724 INFO L175 Difference]: Start difference. First operand has 178 places, 180 transitions, 363 flow. Second operand 3 states and 518 transitions. [2024-11-19 05:49:17,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 178 transitions, 383 flow [2024-11-19 05:49:17,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 178 transitions, 382 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:49:17,733 INFO L231 Difference]: Finished difference. Result has 180 places, 178 transitions, 368 flow [2024-11-19 05:49:17,736 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=368, PETRI_PLACES=180, PETRI_TRANSITIONS=178} [2024-11-19 05:49:17,742 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 2 predicate places. [2024-11-19 05:49:17,742 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 178 transitions, 368 flow [2024-11-19 05:49:17,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:17,743 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:17,743 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:17,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 05:49:17,744 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 05:49:17,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:17,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1977973560, now seen corresponding path program 1 times [2024-11-19 05:49:17,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:17,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755429236] [2024-11-19 05:49:17,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:17,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:17,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:17,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:17,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755429236] [2024-11-19 05:49:17,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755429236] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:49:17,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495142003] [2024-11-19 05:49:17,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:17,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:17,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:49:17,932 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:49:17,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 05:49:18,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:18,039 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 05:49:18,044 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:49:18,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 05:49:18,075 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 05:49:18,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495142003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:18,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 05:49:18,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-19 05:49:18,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511211269] [2024-11-19 05:49:18,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:18,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:49:18,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:18,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:49:18,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:49:18,096 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 181 [2024-11-19 05:49:18,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 178 transitions, 368 flow. Second operand has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:18,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:18,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 181 [2024-11-19 05:49:18,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:18,183 INFO L124 PetriNetUnfolderBase]: 29/451 cut-off events. [2024-11-19 05:49:18,183 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:49:18,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 518 conditions, 451 events. 29/451 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1512 event pairs, 8 based on Foata normal form. 3/426 useless extension candidates. Maximal degree in co-relation 439. Up to 39 conditions per place. [2024-11-19 05:49:18,188 INFO L140 encePairwiseOnDemand]: 178/181 looper letters, 14 selfloop transitions, 2 changer transitions 0/183 dead transitions. [2024-11-19 05:49:18,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 183 transitions, 410 flow [2024-11-19 05:49:18,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:49:18,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:49:18,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 518 transitions. [2024-11-19 05:49:18,190 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9539594843462247 [2024-11-19 05:49:18,191 INFO L175 Difference]: Start difference. First operand has 180 places, 178 transitions, 368 flow. Second operand 3 states and 518 transitions. [2024-11-19 05:49:18,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 183 transitions, 410 flow [2024-11-19 05:49:18,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 183 transitions, 408 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:49:18,196 INFO L231 Difference]: Finished difference. Result has 182 places, 179 transitions, 378 flow [2024-11-19 05:49:18,197 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=378, PETRI_PLACES=182, PETRI_TRANSITIONS=179} [2024-11-19 05:49:18,198 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 4 predicate places. [2024-11-19 05:49:18,199 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 179 transitions, 378 flow [2024-11-19 05:49:18,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:18,199 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:18,200 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:18,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 05:49:18,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:18,401 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 05:49:18,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:18,402 INFO L85 PathProgramCache]: Analyzing trace with hash 261699259, now seen corresponding path program 1 times [2024-11-19 05:49:18,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:18,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383413750] [2024-11-19 05:49:18,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:18,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:18,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:18,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:18,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383413750] [2024-11-19 05:49:18,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383413750] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:49:18,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614599470] [2024-11-19 05:49:18,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:18,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:18,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:49:18,657 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:49:18,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 05:49:18,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:18,765 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 05:49:18,768 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:49:18,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:18,831 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:49:18,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:18,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614599470] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:49:18,876 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:49:18,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-19 05:49:18,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538453464] [2024-11-19 05:49:18,877 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:49:18,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 05:49:18,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:18,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 05:49:18,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 05:49:18,936 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 181 [2024-11-19 05:49:18,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 179 transitions, 378 flow. Second operand has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:18,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:18,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 181 [2024-11-19 05:49:18,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:19,086 INFO L124 PetriNetUnfolderBase]: 15/395 cut-off events. [2024-11-19 05:49:19,086 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:49:19,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 465 conditions, 395 events. 15/395 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1098 event pairs, 10 based on Foata normal form. 2/375 useless extension candidates. Maximal degree in co-relation 355. Up to 34 conditions per place. [2024-11-19 05:49:19,090 INFO L140 encePairwiseOnDemand]: 175/181 looper letters, 14 selfloop transitions, 9 changer transitions 0/187 dead transitions. [2024-11-19 05:49:19,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 187 transitions, 442 flow [2024-11-19 05:49:19,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:49:19,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:49:19,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1501 transitions. [2024-11-19 05:49:19,095 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9214241866175568 [2024-11-19 05:49:19,096 INFO L175 Difference]: Start difference. First operand has 182 places, 179 transitions, 378 flow. Second operand 9 states and 1501 transitions. [2024-11-19 05:49:19,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 187 transitions, 442 flow [2024-11-19 05:49:19,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 187 transitions, 440 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:49:19,103 INFO L231 Difference]: Finished difference. Result has 192 places, 185 transitions, 426 flow [2024-11-19 05:49:19,103 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=426, PETRI_PLACES=192, PETRI_TRANSITIONS=185} [2024-11-19 05:49:19,104 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 14 predicate places. [2024-11-19 05:49:19,104 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 185 transitions, 426 flow [2024-11-19 05:49:19,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:19,106 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:19,107 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:19,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 05:49:19,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-19 05:49:19,310 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 05:49:19,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:19,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1127065211, now seen corresponding path program 2 times [2024-11-19 05:49:19,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:19,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315949221] [2024-11-19 05:49:19,311 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:49:19,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:19,346 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:49:19,346 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:19,891 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 05:49:19,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:19,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315949221] [2024-11-19 05:49:19,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315949221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:19,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:19,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:49:19,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002672824] [2024-11-19 05:49:19,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:19,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:49:19,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:19,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:49:19,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:49:20,099 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-19 05:49:20,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 185 transitions, 426 flow. Second operand has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:20,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:20,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-19 05:49:20,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:20,494 INFO L124 PetriNetUnfolderBase]: 355/1812 cut-off events. [2024-11-19 05:49:20,495 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-19 05:49:20,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2588 conditions, 1812 events. 355/1812 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 12646 event pairs, 172 based on Foata normal form. 0/1684 useless extension candidates. Maximal degree in co-relation 2476. Up to 583 conditions per place. [2024-11-19 05:49:20,506 INFO L140 encePairwiseOnDemand]: 166/181 looper letters, 34 selfloop transitions, 38 changer transitions 0/230 dead transitions. [2024-11-19 05:49:20,507 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 230 transitions, 660 flow [2024-11-19 05:49:20,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:49:20,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:49:20,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 979 transitions. [2024-11-19 05:49:20,510 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9014732965009208 [2024-11-19 05:49:20,511 INFO L175 Difference]: Start difference. First operand has 192 places, 185 transitions, 426 flow. Second operand 6 states and 979 transitions. [2024-11-19 05:49:20,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 230 transitions, 660 flow [2024-11-19 05:49:20,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 230 transitions, 654 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-19 05:49:20,518 INFO L231 Difference]: Finished difference. Result has 201 places, 222 transitions, 674 flow [2024-11-19 05:49:20,518 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=674, PETRI_PLACES=201, PETRI_TRANSITIONS=222} [2024-11-19 05:49:20,520 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 23 predicate places. [2024-11-19 05:49:20,520 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 222 transitions, 674 flow [2024-11-19 05:49:20,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:20,521 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:20,521 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:20,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 05:49:20,522 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 05:49:20,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:20,522 INFO L85 PathProgramCache]: Analyzing trace with hash -378395017, now seen corresponding path program 1 times [2024-11-19 05:49:20,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:20,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075793097] [2024-11-19 05:49:20,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:20,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:20,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:20,712 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:20,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:20,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075793097] [2024-11-19 05:49:20,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075793097] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:49:20,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188117350] [2024-11-19 05:49:20,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:20,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:20,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:49:20,715 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:49:20,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 05:49:20,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:20,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 05:49:20,832 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:49:20,895 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:20,895 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:49:20,997 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:20,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188117350] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:49:20,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:49:20,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-19 05:49:20,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517454525] [2024-11-19 05:49:20,999 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:49:21,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 05:49:21,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:21,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 05:49:21,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-19 05:49:21,038 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 181 [2024-11-19 05:49:21,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 222 transitions, 674 flow. Second operand has 18 states, 18 states have (on average 166.0) internal successors, (2988), 18 states have internal predecessors, (2988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:21,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:21,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 181 [2024-11-19 05:49:21,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:21,385 INFO L124 PetriNetUnfolderBase]: 133/1064 cut-off events. [2024-11-19 05:49:21,386 INFO L125 PetriNetUnfolderBase]: For 104/117 co-relation queries the response was YES. [2024-11-19 05:49:21,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1668 conditions, 1064 events. 133/1064 cut-off events. For 104/117 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 5983 event pairs, 28 based on Foata normal form. 4/1012 useless extension candidates. Maximal degree in co-relation 1479. Up to 177 conditions per place. [2024-11-19 05:49:21,394 INFO L140 encePairwiseOnDemand]: 175/181 looper letters, 18 selfloop transitions, 21 changer transitions 0/240 dead transitions. [2024-11-19 05:49:21,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 240 transitions, 840 flow [2024-11-19 05:49:21,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-19 05:49:21,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-19 05:49:21,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3487 transitions. [2024-11-19 05:49:21,401 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9173901604840832 [2024-11-19 05:49:21,401 INFO L175 Difference]: Start difference. First operand has 201 places, 222 transitions, 674 flow. Second operand 21 states and 3487 transitions. [2024-11-19 05:49:21,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 240 transitions, 840 flow [2024-11-19 05:49:21,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 240 transitions, 840 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:49:21,414 INFO L231 Difference]: Finished difference. Result has 226 places, 235 transitions, 804 flow [2024-11-19 05:49:21,414 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=804, PETRI_PLACES=226, PETRI_TRANSITIONS=235} [2024-11-19 05:49:21,416 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 48 predicate places. [2024-11-19 05:49:21,416 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 235 transitions, 804 flow [2024-11-19 05:49:21,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 166.0) internal successors, (2988), 18 states have internal predecessors, (2988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:21,419 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:21,419 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:21,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 05:49:21,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:21,624 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 05:49:21,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:21,625 INFO L85 PathProgramCache]: Analyzing trace with hash -271780361, now seen corresponding path program 2 times [2024-11-19 05:49:21,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:21,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191060726] [2024-11-19 05:49:21,627 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:49:21,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:21,654 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:49:21,656 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:22,038 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-19 05:49:22,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:22,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191060726] [2024-11-19 05:49:22,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191060726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:22,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:22,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:49:22,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103939891] [2024-11-19 05:49:22,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:22,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:49:22,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:22,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:49:22,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:49:22,233 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-19 05:49:22,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 235 transitions, 804 flow. Second operand has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:22,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:22,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-19 05:49:22,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:22,583 INFO L124 PetriNetUnfolderBase]: 451/2077 cut-off events. [2024-11-19 05:49:22,583 INFO L125 PetriNetUnfolderBase]: For 482/534 co-relation queries the response was YES. [2024-11-19 05:49:22,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3738 conditions, 2077 events. 451/2077 cut-off events. For 482/534 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 14586 event pairs, 153 based on Foata normal form. 13/1992 useless extension candidates. Maximal degree in co-relation 3542. Up to 712 conditions per place. [2024-11-19 05:49:22,597 INFO L140 encePairwiseOnDemand]: 170/181 looper letters, 67 selfloop transitions, 30 changer transitions 0/272 dead transitions. [2024-11-19 05:49:22,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 272 transitions, 1114 flow [2024-11-19 05:49:22,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:49:22,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:49:22,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 963 transitions. [2024-11-19 05:49:22,600 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8867403314917127 [2024-11-19 05:49:22,600 INFO L175 Difference]: Start difference. First operand has 226 places, 235 transitions, 804 flow. Second operand 6 states and 963 transitions. [2024-11-19 05:49:22,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 272 transitions, 1114 flow [2024-11-19 05:49:22,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 272 transitions, 1090 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-19 05:49:22,608 INFO L231 Difference]: Finished difference. Result has 230 places, 264 transitions, 1030 flow [2024-11-19 05:49:22,609 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=780, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1030, PETRI_PLACES=230, PETRI_TRANSITIONS=264} [2024-11-19 05:49:22,610 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 52 predicate places. [2024-11-19 05:49:22,610 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 264 transitions, 1030 flow [2024-11-19 05:49:22,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:22,611 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:22,611 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:22,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 05:49:22,611 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 05:49:22,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:22,612 INFO L85 PathProgramCache]: Analyzing trace with hash 631674752, now seen corresponding path program 1 times [2024-11-19 05:49:22,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:22,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962807122] [2024-11-19 05:49:22,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:22,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:22,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:22,953 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:22,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:22,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962807122] [2024-11-19 05:49:22,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962807122] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:49:22,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33526778] [2024-11-19 05:49:22,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:22,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:22,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:49:22,956 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:49:22,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 05:49:23,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:23,061 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 05:49:23,065 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:49:23,156 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:23,157 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:49:23,373 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:23,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33526778] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:49:23,374 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:49:23,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-19 05:49:23,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252815133] [2024-11-19 05:49:23,374 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:49:23,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 05:49:23,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:23,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 05:49:23,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-19 05:49:23,427 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 181 [2024-11-19 05:49:23,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 264 transitions, 1030 flow. Second operand has 23 states, 23 states have (on average 166.08695652173913) internal successors, (3820), 23 states have internal predecessors, (3820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:23,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:23,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 181 [2024-11-19 05:49:23,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:23,998 INFO L124 PetriNetUnfolderBase]: 236/1582 cut-off events. [2024-11-19 05:49:23,998 INFO L125 PetriNetUnfolderBase]: For 548/581 co-relation queries the response was YES. [2024-11-19 05:49:24,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2913 conditions, 1582 events. 236/1582 cut-off events. For 548/581 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10150 event pairs, 35 based on Foata normal form. 13/1528 useless extension candidates. Maximal degree in co-relation 2636. Up to 221 conditions per place. [2024-11-19 05:49:24,011 INFO L140 encePairwiseOnDemand]: 175/181 looper letters, 21 selfloop transitions, 30 changer transitions 0/281 dead transitions. [2024-11-19 05:49:24,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 281 transitions, 1254 flow [2024-11-19 05:49:24,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-19 05:49:24,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-19 05:49:24,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4974 transitions. [2024-11-19 05:49:24,022 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9160220994475138 [2024-11-19 05:49:24,022 INFO L175 Difference]: Start difference. First operand has 230 places, 264 transitions, 1030 flow. Second operand 30 states and 4974 transitions. [2024-11-19 05:49:24,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 281 transitions, 1254 flow [2024-11-19 05:49:24,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 281 transitions, 1254 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:49:24,033 INFO L231 Difference]: Finished difference. Result has 263 places, 274 transitions, 1182 flow [2024-11-19 05:49:24,034 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1182, PETRI_PLACES=263, PETRI_TRANSITIONS=274} [2024-11-19 05:49:24,034 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 85 predicate places. [2024-11-19 05:49:24,034 INFO L471 AbstractCegarLoop]: Abstraction has has 263 places, 274 transitions, 1182 flow [2024-11-19 05:49:24,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 166.08695652173913) internal successors, (3820), 23 states have internal predecessors, (3820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:24,036 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:24,036 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:24,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-19 05:49:24,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:24,241 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 05:49:24,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:24,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1177218906, now seen corresponding path program 2 times [2024-11-19 05:49:24,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:24,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678183346] [2024-11-19 05:49:24,242 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:49:24,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:24,267 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:49:24,267 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:24,583 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:49:24,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:24,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678183346] [2024-11-19 05:49:24,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678183346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:24,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:24,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:49:24,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483226413] [2024-11-19 05:49:24,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:24,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:49:24,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:24,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:49:24,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:49:24,755 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 181 [2024-11-19 05:49:24,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 274 transitions, 1182 flow. Second operand has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:24,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:24,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 181 [2024-11-19 05:49:24,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:25,464 INFO L124 PetriNetUnfolderBase]: 1000/3561 cut-off events. [2024-11-19 05:49:25,464 INFO L125 PetriNetUnfolderBase]: For 1866/1935 co-relation queries the response was YES. [2024-11-19 05:49:25,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7941 conditions, 3561 events. 1000/3561 cut-off events. For 1866/1935 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 26763 event pairs, 304 based on Foata normal form. 18/3379 useless extension candidates. Maximal degree in co-relation 7663. Up to 1732 conditions per place. [2024-11-19 05:49:25,487 INFO L140 encePairwiseOnDemand]: 158/181 looper letters, 100 selfloop transitions, 89 changer transitions 0/361 dead transitions. [2024-11-19 05:49:25,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 361 transitions, 1900 flow [2024-11-19 05:49:25,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:49:25,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:49:25,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 961 transitions. [2024-11-19 05:49:25,490 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8848987108655617 [2024-11-19 05:49:25,490 INFO L175 Difference]: Start difference. First operand has 263 places, 274 transitions, 1182 flow. Second operand 6 states and 961 transitions. [2024-11-19 05:49:25,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 361 transitions, 1900 flow [2024-11-19 05:49:25,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 361 transitions, 1854 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-19 05:49:25,504 INFO L231 Difference]: Finished difference. Result has 255 places, 353 transitions, 1874 flow [2024-11-19 05:49:25,504 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=1136, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1874, PETRI_PLACES=255, PETRI_TRANSITIONS=353} [2024-11-19 05:49:25,505 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 77 predicate places. [2024-11-19 05:49:25,505 INFO L471 AbstractCegarLoop]: Abstraction has has 255 places, 353 transitions, 1874 flow [2024-11-19 05:49:25,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:25,506 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:25,506 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:25,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 05:49:25,507 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 05:49:25,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:25,507 INFO L85 PathProgramCache]: Analyzing trace with hash -723352546, now seen corresponding path program 1 times [2024-11-19 05:49:25,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:25,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998294112] [2024-11-19 05:49:25,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:25,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:25,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:26,058 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:49:26,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:26,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998294112] [2024-11-19 05:49:26,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998294112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:26,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:26,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:49:26,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774535940] [2024-11-19 05:49:26,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:26,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:49:26,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:26,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:49:26,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:49:26,181 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 181 [2024-11-19 05:49:26,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 353 transitions, 1874 flow. Second operand has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:26,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:26,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 181 [2024-11-19 05:49:26,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:26,966 INFO L124 PetriNetUnfolderBase]: 1203/4090 cut-off events. [2024-11-19 05:49:26,967 INFO L125 PetriNetUnfolderBase]: For 4618/4742 co-relation queries the response was YES. [2024-11-19 05:49:26,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10932 conditions, 4090 events. 1203/4090 cut-off events. For 4618/4742 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 30789 event pairs, 276 based on Foata normal form. 21/3965 useless extension candidates. Maximal degree in co-relation 10671. Up to 1975 conditions per place. [2024-11-19 05:49:26,995 INFO L140 encePairwiseOnDemand]: 166/181 looper letters, 169 selfloop transitions, 71 changer transitions 0/414 dead transitions. [2024-11-19 05:49:26,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 414 transitions, 2708 flow [2024-11-19 05:49:26,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:49:26,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:49:26,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 929 transitions. [2024-11-19 05:49:26,998 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8554327808471455 [2024-11-19 05:49:26,998 INFO L175 Difference]: Start difference. First operand has 255 places, 353 transitions, 1874 flow. Second operand 6 states and 929 transitions. [2024-11-19 05:49:26,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 414 transitions, 2708 flow [2024-11-19 05:49:27,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 414 transitions, 2612 flow, removed 48 selfloop flow, removed 0 redundant places. [2024-11-19 05:49:27,078 INFO L231 Difference]: Finished difference. Result has 265 places, 406 transitions, 2454 flow [2024-11-19 05:49:27,079 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=1784, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2454, PETRI_PLACES=265, PETRI_TRANSITIONS=406} [2024-11-19 05:49:27,080 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 87 predicate places. [2024-11-19 05:49:27,080 INFO L471 AbstractCegarLoop]: Abstraction has has 265 places, 406 transitions, 2454 flow [2024-11-19 05:49:27,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:27,080 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:27,081 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:27,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 05:49:27,081 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 05:49:27,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:27,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1817390323, now seen corresponding path program 1 times [2024-11-19 05:49:27,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:27,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535092452] [2024-11-19 05:49:27,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:27,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:27,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:27,700 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:49:27,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:27,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535092452] [2024-11-19 05:49:27,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535092452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:27,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:27,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 05:49:27,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174729885] [2024-11-19 05:49:27,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:27,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 05:49:27,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:27,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 05:49:27,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 05:49:29,261 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-19 05:49:29,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 406 transitions, 2454 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:29,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:29,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-19 05:49:29,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:31,151 INFO L124 PetriNetUnfolderBase]: 2157/8130 cut-off events. [2024-11-19 05:49:31,151 INFO L125 PetriNetUnfolderBase]: For 10319/10561 co-relation queries the response was YES. [2024-11-19 05:49:31,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22215 conditions, 8130 events. 2157/8130 cut-off events. For 10319/10561 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 74242 event pairs, 297 based on Foata normal form. 73/8074 useless extension candidates. Maximal degree in co-relation 21937. Up to 1356 conditions per place. [2024-11-19 05:49:31,230 INFO L140 encePairwiseOnDemand]: 167/181 looper letters, 74 selfloop transitions, 15 changer transitions 2/469 dead transitions. [2024-11-19 05:49:31,230 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 469 transitions, 2794 flow [2024-11-19 05:49:31,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:49:31,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:49:31,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1447 transitions. [2024-11-19 05:49:31,235 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8882750153468385 [2024-11-19 05:49:31,235 INFO L175 Difference]: Start difference. First operand has 265 places, 406 transitions, 2454 flow. Second operand 9 states and 1447 transitions. [2024-11-19 05:49:31,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 469 transitions, 2794 flow [2024-11-19 05:49:31,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 469 transitions, 2712 flow, removed 41 selfloop flow, removed 0 redundant places. [2024-11-19 05:49:31,320 INFO L231 Difference]: Finished difference. Result has 280 places, 421 transitions, 2490 flow [2024-11-19 05:49:31,321 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=2372, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2490, PETRI_PLACES=280, PETRI_TRANSITIONS=421} [2024-11-19 05:49:31,322 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 102 predicate places. [2024-11-19 05:49:31,322 INFO L471 AbstractCegarLoop]: Abstraction has has 280 places, 421 transitions, 2490 flow [2024-11-19 05:49:31,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:31,323 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:31,323 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:31,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 05:49:31,323 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 05:49:31,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:31,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1367447591, now seen corresponding path program 2 times [2024-11-19 05:49:31,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:31,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370847129] [2024-11-19 05:49:31,325 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:49:31,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:31,378 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:49:31,379 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:31,838 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:49:31,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:31,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370847129] [2024-11-19 05:49:31,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370847129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:31,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:31,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 05:49:31,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453163455] [2024-11-19 05:49:31,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:31,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 05:49:31,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:31,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 05:49:31,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 05:49:33,303 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-19 05:49:33,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 421 transitions, 2490 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:33,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:33,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-19 05:49:33,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:35,048 INFO L124 PetriNetUnfolderBase]: 2461/9026 cut-off events. [2024-11-19 05:49:35,048 INFO L125 PetriNetUnfolderBase]: For 12153/12463 co-relation queries the response was YES. [2024-11-19 05:49:35,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25977 conditions, 9026 events. 2461/9026 cut-off events. For 12153/12463 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 84777 event pairs, 299 based on Foata normal form. 80/8946 useless extension candidates. Maximal degree in co-relation 25691. Up to 1603 conditions per place. [2024-11-19 05:49:35,142 INFO L140 encePairwiseOnDemand]: 168/181 looper letters, 113 selfloop transitions, 20 changer transitions 0/511 dead transitions. [2024-11-19 05:49:35,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 511 transitions, 3154 flow [2024-11-19 05:49:35,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:49:35,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:49:35,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1446 transitions. [2024-11-19 05:49:35,151 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8876611418047882 [2024-11-19 05:49:35,152 INFO L175 Difference]: Start difference. First operand has 280 places, 421 transitions, 2490 flow. Second operand 9 states and 1446 transitions. [2024-11-19 05:49:35,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 511 transitions, 3154 flow [2024-11-19 05:49:35,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 511 transitions, 3154 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:49:35,238 INFO L231 Difference]: Finished difference. Result has 295 places, 437 transitions, 2664 flow [2024-11-19 05:49:35,239 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=2490, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2664, PETRI_PLACES=295, PETRI_TRANSITIONS=437} [2024-11-19 05:49:35,240 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 117 predicate places. [2024-11-19 05:49:35,240 INFO L471 AbstractCegarLoop]: Abstraction has has 295 places, 437 transitions, 2664 flow [2024-11-19 05:49:35,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:35,241 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:35,241 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:35,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 05:49:35,241 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 05:49:35,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:35,242 INFO L85 PathProgramCache]: Analyzing trace with hash 405411171, now seen corresponding path program 3 times [2024-11-19 05:49:35,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:35,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188201770] [2024-11-19 05:49:35,242 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 05:49:35,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:35,357 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 05:49:35,357 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:35,661 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:49:35,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:35,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188201770] [2024-11-19 05:49:35,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188201770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:35,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:35,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 05:49:35,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623471997] [2024-11-19 05:49:35,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:35,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 05:49:35,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:35,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 05:49:35,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 05:49:36,842 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-19 05:49:36,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 437 transitions, 2664 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:36,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:36,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-19 05:49:36,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:38,757 INFO L124 PetriNetUnfolderBase]: 2736/10058 cut-off events. [2024-11-19 05:49:38,758 INFO L125 PetriNetUnfolderBase]: For 16000/16410 co-relation queries the response was YES. [2024-11-19 05:49:38,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30201 conditions, 10058 events. 2736/10058 cut-off events. For 16000/16410 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 95558 event pairs, 315 based on Foata normal form. 104/10013 useless extension candidates. Maximal degree in co-relation 29907. Up to 1744 conditions per place. [2024-11-19 05:49:38,849 INFO L140 encePairwiseOnDemand]: 167/181 looper letters, 119 selfloop transitions, 22 changer transitions 2/521 dead transitions. [2024-11-19 05:49:38,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 521 transitions, 3458 flow [2024-11-19 05:49:38,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:49:38,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:49:38,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1452 transitions. [2024-11-19 05:49:38,856 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8913443830570903 [2024-11-19 05:49:38,857 INFO L175 Difference]: Start difference. First operand has 295 places, 437 transitions, 2664 flow. Second operand 9 states and 1452 transitions. [2024-11-19 05:49:38,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 521 transitions, 3458 flow [2024-11-19 05:49:38,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 521 transitions, 3417 flow, removed 15 selfloop flow, removed 1 redundant places. [2024-11-19 05:49:38,970 INFO L231 Difference]: Finished difference. Result has 307 places, 449 transitions, 2835 flow [2024-11-19 05:49:38,971 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=2649, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2835, PETRI_PLACES=307, PETRI_TRANSITIONS=449} [2024-11-19 05:49:38,972 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 129 predicate places. [2024-11-19 05:49:38,972 INFO L471 AbstractCegarLoop]: Abstraction has has 307 places, 449 transitions, 2835 flow [2024-11-19 05:49:38,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:38,974 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:38,974 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:38,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 05:49:38,974 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 05:49:38,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:38,975 INFO L85 PathProgramCache]: Analyzing trace with hash 670087223, now seen corresponding path program 4 times [2024-11-19 05:49:38,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:38,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270087015] [2024-11-19 05:49:38,975 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 05:49:38,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:39,028 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 05:49:39,029 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:39,834 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:49:39,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:39,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270087015] [2024-11-19 05:49:39,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270087015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:39,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:39,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 05:49:39,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711955540] [2024-11-19 05:49:39,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:39,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 05:49:39,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:39,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 05:49:39,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-19 05:49:41,202 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-19 05:49:41,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 449 transitions, 2835 flow. Second operand has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:41,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:41,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-19 05:49:41,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:43,376 INFO L124 PetriNetUnfolderBase]: 3055/11090 cut-off events. [2024-11-19 05:49:43,376 INFO L125 PetriNetUnfolderBase]: For 19745/20246 co-relation queries the response was YES. [2024-11-19 05:49:43,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34186 conditions, 11090 events. 3055/11090 cut-off events. For 19745/20246 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 107038 event pairs, 322 based on Foata normal form. 119/11034 useless extension candidates. Maximal degree in co-relation 33886. Up to 1981 conditions per place. [2024-11-19 05:49:43,472 INFO L140 encePairwiseOnDemand]: 166/181 looper letters, 133 selfloop transitions, 28 changer transitions 0/539 dead transitions. [2024-11-19 05:49:43,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 539 transitions, 3784 flow [2024-11-19 05:49:43,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 05:49:43,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 05:49:43,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1603 transitions. [2024-11-19 05:49:43,476 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8856353591160221 [2024-11-19 05:49:43,476 INFO L175 Difference]: Start difference. First operand has 307 places, 449 transitions, 2835 flow. Second operand 10 states and 1603 transitions. [2024-11-19 05:49:43,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 539 transitions, 3784 flow [2024-11-19 05:49:43,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 539 transitions, 3705 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-19 05:49:43,609 INFO L231 Difference]: Finished difference. Result has 318 places, 461 transitions, 3013 flow [2024-11-19 05:49:43,610 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=2809, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3013, PETRI_PLACES=318, PETRI_TRANSITIONS=461} [2024-11-19 05:49:43,611 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 140 predicate places. [2024-11-19 05:49:43,612 INFO L471 AbstractCegarLoop]: Abstraction has has 318 places, 461 transitions, 3013 flow [2024-11-19 05:49:43,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:43,613 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:43,613 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:43,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 05:49:43,614 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 05:49:43,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:43,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1834117809, now seen corresponding path program 5 times [2024-11-19 05:49:43,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:43,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988036838] [2024-11-19 05:49:43,616 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 05:49:43,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:43,650 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 05:49:43,652 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:44,513 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-11-19 05:49:44,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:44,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988036838] [2024-11-19 05:49:44,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988036838] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:49:44,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296750242] [2024-11-19 05:49:44,514 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 05:49:44,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:44,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:49:44,516 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:49:44,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 05:49:44,677 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 05:49:44,677 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:44,680 INFO L255 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-19 05:49:44,683 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:49:44,953 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 13 treesize of output 9 [2024-11-19 05:49:45,048 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:49:45,049 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 05:49:45,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296750242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:45,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 05:49:45,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2024-11-19 05:49:45,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529014813] [2024-11-19 05:49:45,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:45,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 05:49:45,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:45,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 05:49:45,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2024-11-19 05:49:46,456 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-19 05:49:46,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 461 transitions, 3013 flow. Second operand has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:46,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:46,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-19 05:49:46,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:48,672 INFO L124 PetriNetUnfolderBase]: 3363/12284 cut-off events. [2024-11-19 05:49:48,672 INFO L125 PetriNetUnfolderBase]: For 24785/25331 co-relation queries the response was YES. [2024-11-19 05:49:48,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38684 conditions, 12284 events. 3363/12284 cut-off events. For 24785/25331 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 120892 event pairs, 345 based on Foata normal form. 113/12227 useless extension candidates. Maximal degree in co-relation 38378. Up to 2138 conditions per place. [2024-11-19 05:49:48,769 INFO L140 encePairwiseOnDemand]: 166/181 looper letters, 133 selfloop transitions, 30 changer transitions 1/542 dead transitions. [2024-11-19 05:49:48,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 542 transitions, 3999 flow [2024-11-19 05:49:48,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 05:49:48,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 05:49:48,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1606 transitions. [2024-11-19 05:49:48,772 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.887292817679558 [2024-11-19 05:49:48,772 INFO L175 Difference]: Start difference. First operand has 318 places, 461 transitions, 3013 flow. Second operand 10 states and 1606 transitions. [2024-11-19 05:49:48,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 542 transitions, 3999 flow [2024-11-19 05:49:49,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 542 transitions, 3906 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-11-19 05:49:49,140 INFO L231 Difference]: Finished difference. Result has 329 places, 476 transitions, 3255 flow [2024-11-19 05:49:49,141 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=2970, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3255, PETRI_PLACES=329, PETRI_TRANSITIONS=476} [2024-11-19 05:49:49,141 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 151 predicate places. [2024-11-19 05:49:49,141 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 476 transitions, 3255 flow [2024-11-19 05:49:49,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:49,142 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:49,142 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:49,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-19 05:49:49,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-19 05:49:49,343 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 05:49:49,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:49,344 INFO L85 PathProgramCache]: Analyzing trace with hash -2103707617, now seen corresponding path program 6 times [2024-11-19 05:49:49,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:49,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141614547] [2024-11-19 05:49:49,344 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 05:49:49,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:49,372 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-19 05:49:49,376 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:49,736 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:49:49,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:49,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141614547] [2024-11-19 05:49:49,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141614547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:49,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:49,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 05:49:49,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206454878] [2024-11-19 05:49:49,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:49,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 05:49:49,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:49,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 05:49:49,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 05:49:50,973 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-19 05:49:50,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 476 transitions, 3255 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:50,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:50,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-19 05:49:50,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:53,431 INFO L124 PetriNetUnfolderBase]: 3707/13427 cut-off events. [2024-11-19 05:49:53,432 INFO L125 PetriNetUnfolderBase]: For 30830/31473 co-relation queries the response was YES. [2024-11-19 05:49:53,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43330 conditions, 13427 events. 3707/13427 cut-off events. For 30830/31473 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 134740 event pairs, 352 based on Foata normal form. 120/13356 useless extension candidates. Maximal degree in co-relation 43018. Up to 2368 conditions per place. [2024-11-19 05:49:53,537 INFO L140 encePairwiseOnDemand]: 167/181 looper letters, 150 selfloop transitions, 34 changer transitions 0/562 dead transitions. [2024-11-19 05:49:53,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 562 transitions, 4379 flow [2024-11-19 05:49:53,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:49:53,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:49:53,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1455 transitions. [2024-11-19 05:49:53,540 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8931860036832413 [2024-11-19 05:49:53,540 INFO L175 Difference]: Start difference. First operand has 329 places, 476 transitions, 3255 flow. Second operand 9 states and 1455 transitions. [2024-11-19 05:49:53,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 562 transitions, 4379 flow [2024-11-19 05:49:53,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 562 transitions, 4281 flow, removed 27 selfloop flow, removed 3 redundant places. [2024-11-19 05:49:53,680 INFO L231 Difference]: Finished difference. Result has 340 places, 491 transitions, 3496 flow [2024-11-19 05:49:53,680 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=3194, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=476, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3496, PETRI_PLACES=340, PETRI_TRANSITIONS=491} [2024-11-19 05:49:53,681 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 162 predicate places. [2024-11-19 05:49:53,681 INFO L471 AbstractCegarLoop]: Abstraction has has 340 places, 491 transitions, 3496 flow [2024-11-19 05:49:53,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:53,681 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:53,681 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:53,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 05:49:53,682 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 05:49:53,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:53,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1601582507, now seen corresponding path program 7 times [2024-11-19 05:49:53,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:53,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368431393] [2024-11-19 05:49:53,682 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 05:49:53,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:53,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:54,181 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:49:54,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:54,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368431393] [2024-11-19 05:49:54,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368431393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:54,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:54,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 05:49:54,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304830117] [2024-11-19 05:49:54,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:54,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 05:49:54,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:54,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 05:49:54,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 05:49:55,218 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-19 05:49:55,219 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 491 transitions, 3496 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:55,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:55,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-19 05:49:55,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:58,119 INFO L124 PetriNetUnfolderBase]: 4051/14658 cut-off events. [2024-11-19 05:49:58,119 INFO L125 PetriNetUnfolderBase]: For 39381/40076 co-relation queries the response was YES. [2024-11-19 05:49:58,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48600 conditions, 14658 events. 4051/14658 cut-off events. For 39381/40076 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 150069 event pairs, 436 based on Foata normal form. 112/14565 useless extension candidates. Maximal degree in co-relation 48283. Up to 2511 conditions per place. [2024-11-19 05:49:58,241 INFO L140 encePairwiseOnDemand]: 167/181 looper letters, 148 selfloop transitions, 36 changer transitions 0/562 dead transitions. [2024-11-19 05:49:58,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 562 transitions, 4599 flow [2024-11-19 05:49:58,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:49:58,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:49:58,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1457 transitions. [2024-11-19 05:49:58,243 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.894413750767342 [2024-11-19 05:49:58,243 INFO L175 Difference]: Start difference. First operand has 340 places, 491 transitions, 3496 flow. Second operand 9 states and 1457 transitions. [2024-11-19 05:49:58,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 562 transitions, 4599 flow [2024-11-19 05:49:58,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 562 transitions, 4499 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-11-19 05:49:58,594 INFO L231 Difference]: Finished difference. Result has 353 places, 510 transitions, 3852 flow [2024-11-19 05:49:58,595 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=3418, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=491, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3852, PETRI_PLACES=353, PETRI_TRANSITIONS=510} [2024-11-19 05:49:58,595 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 175 predicate places. [2024-11-19 05:49:58,595 INFO L471 AbstractCegarLoop]: Abstraction has has 353 places, 510 transitions, 3852 flow [2024-11-19 05:49:58,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:58,596 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:58,596 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:49:58,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 05:49:58,596 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 05:49:58,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:58,596 INFO L85 PathProgramCache]: Analyzing trace with hash -249459233, now seen corresponding path program 8 times [2024-11-19 05:49:58,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:58,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193103235] [2024-11-19 05:49:58,597 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:49:58,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:58,619 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:49:58,619 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:58,857 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:49:58,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:58,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193103235] [2024-11-19 05:49:58,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193103235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:58,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:58,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 05:49:58,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386823048] [2024-11-19 05:49:58,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:58,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 05:49:58,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:58,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 05:49:58,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 05:49:59,305 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-19 05:49:59,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 510 transitions, 3852 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:49:59,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:59,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-19 05:49:59,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:50:02,559 INFO L124 PetriNetUnfolderBase]: 4625/16577 cut-off events. [2024-11-19 05:50:02,559 INFO L125 PetriNetUnfolderBase]: For 49894/50715 co-relation queries the response was YES. [2024-11-19 05:50:02,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56204 conditions, 16577 events. 4625/16577 cut-off events. For 49894/50715 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 174957 event pairs, 455 based on Foata normal form. 139/16509 useless extension candidates. Maximal degree in co-relation 55880. Up to 2910 conditions per place. [2024-11-19 05:50:02,687 INFO L140 encePairwiseOnDemand]: 166/181 looper letters, 169 selfloop transitions, 45 changer transitions 0/592 dead transitions. [2024-11-19 05:50:02,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 592 transitions, 5156 flow [2024-11-19 05:50:02,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:50:02,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:50:02,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1459 transitions. [2024-11-19 05:50:02,689 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8956414978514426 [2024-11-19 05:50:02,689 INFO L175 Difference]: Start difference. First operand has 353 places, 510 transitions, 3852 flow. Second operand 9 states and 1459 transitions. [2024-11-19 05:50:02,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 592 transitions, 5156 flow [2024-11-19 05:50:02,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 592 transitions, 5052 flow, removed 52 selfloop flow, removed 0 redundant places. [2024-11-19 05:50:03,094 INFO L231 Difference]: Finished difference. Result has 368 places, 528 transitions, 4205 flow [2024-11-19 05:50:03,094 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=3748, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=470, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4205, PETRI_PLACES=368, PETRI_TRANSITIONS=528} [2024-11-19 05:50:03,095 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 190 predicate places. [2024-11-19 05:50:03,095 INFO L471 AbstractCegarLoop]: Abstraction has has 368 places, 528 transitions, 4205 flow [2024-11-19 05:50:03,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:50:03,095 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:50:03,095 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:50:03,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 05:50:03,096 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 05:50:03,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:50:03,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1870549351, now seen corresponding path program 9 times [2024-11-19 05:50:03,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:50:03,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663951669] [2024-11-19 05:50:03,102 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 05:50:03,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:50:03,134 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 05:50:03,135 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:50:03,399 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:50:03,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:50:03,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663951669] [2024-11-19 05:50:03,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663951669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:50:03,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:50:03,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 05:50:03,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156119487] [2024-11-19 05:50:03,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:50:03,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 05:50:03,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:50:03,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 05:50:03,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 05:50:03,856 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-19 05:50:03,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 528 transitions, 4205 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:50:03,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:50:03,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-19 05:50:03,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:50:07,569 INFO L124 PetriNetUnfolderBase]: 5214/18627 cut-off events. [2024-11-19 05:50:07,569 INFO L125 PetriNetUnfolderBase]: For 61992/62938 co-relation queries the response was YES. [2024-11-19 05:50:07,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64474 conditions, 18627 events. 5214/18627 cut-off events. For 61992/62938 co-relation queries the response was YES. Maximal size of possible extension queue 662. Compared 202631 event pairs, 501 based on Foata normal form. 152/18561 useless extension candidates. Maximal degree in co-relation 64142. Up to 3261 conditions per place. [2024-11-19 05:50:07,987 INFO L140 encePairwiseOnDemand]: 166/181 looper letters, 184 selfloop transitions, 46 changer transitions 0/608 dead transitions. [2024-11-19 05:50:07,988 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 608 transitions, 5463 flow [2024-11-19 05:50:07,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:50:07,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:50:07,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1459 transitions. [2024-11-19 05:50:07,990 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8956414978514426 [2024-11-19 05:50:07,991 INFO L175 Difference]: Start difference. First operand has 368 places, 528 transitions, 4205 flow. Second operand 9 states and 1459 transitions. [2024-11-19 05:50:07,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 608 transitions, 5463 flow [2024-11-19 05:50:08,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 608 transitions, 5377 flow, removed 43 selfloop flow, removed 0 redundant places. [2024-11-19 05:50:08,288 INFO L231 Difference]: Finished difference. Result has 382 places, 545 transitions, 4528 flow [2024-11-19 05:50:08,289 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=4119, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=528, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=487, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4528, PETRI_PLACES=382, PETRI_TRANSITIONS=545} [2024-11-19 05:50:08,289 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 204 predicate places. [2024-11-19 05:50:08,289 INFO L471 AbstractCegarLoop]: Abstraction has has 382 places, 545 transitions, 4528 flow [2024-11-19 05:50:08,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:50:08,290 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:50:08,290 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:50:08,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 05:50:08,291 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 05:50:08,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:50:08,291 INFO L85 PathProgramCache]: Analyzing trace with hash -196177047, now seen corresponding path program 10 times [2024-11-19 05:50:08,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:50:08,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479866957] [2024-11-19 05:50:08,291 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 05:50:08,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:50:08,333 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 05:50:08,333 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:50:09,008 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:50:09,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:50:09,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479866957] [2024-11-19 05:50:09,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479866957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:50:09,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:50:09,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 05:50:09,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100405260] [2024-11-19 05:50:09,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:50:09,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 05:50:09,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:50:09,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 05:50:09,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-19 05:50:10,320 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-19 05:50:10,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 545 transitions, 4528 flow. Second operand has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:50:10,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:50:10,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-19 05:50:10,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:50:14,333 INFO L124 PetriNetUnfolderBase]: 5502/19572 cut-off events. [2024-11-19 05:50:14,333 INFO L125 PetriNetUnfolderBase]: For 70308/71318 co-relation queries the response was YES. [2024-11-19 05:50:14,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68719 conditions, 19572 events. 5502/19572 cut-off events. For 70308/71318 co-relation queries the response was YES. Maximal size of possible extension queue 725. Compared 215317 event pairs, 533 based on Foata normal form. 173/19523 useless extension candidates. Maximal degree in co-relation 68380. Up to 3435 conditions per place. [2024-11-19 05:50:14,513 INFO L140 encePairwiseOnDemand]: 164/181 looper letters, 182 selfloop transitions, 54 changer transitions 0/614 dead transitions. [2024-11-19 05:50:14,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 614 transitions, 5830 flow [2024-11-19 05:50:14,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 05:50:14,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 05:50:14,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1612 transitions. [2024-11-19 05:50:14,515 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8906077348066298 [2024-11-19 05:50:14,515 INFO L175 Difference]: Start difference. First operand has 382 places, 545 transitions, 4528 flow. Second operand 10 states and 1612 transitions. [2024-11-19 05:50:14,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 614 transitions, 5830 flow [2024-11-19 05:50:14,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 614 transitions, 5677 flow, removed 57 selfloop flow, removed 2 redundant places. [2024-11-19 05:50:14,849 INFO L231 Difference]: Finished difference. Result has 393 places, 559 transitions, 4809 flow [2024-11-19 05:50:14,850 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=4431, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=495, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4809, PETRI_PLACES=393, PETRI_TRANSITIONS=559} [2024-11-19 05:50:14,850 INFO L277 CegarLoopForPetriNet]: 178 programPoint places, 215 predicate places. [2024-11-19 05:50:14,850 INFO L471 AbstractCegarLoop]: Abstraction has has 393 places, 559 transitions, 4809 flow [2024-11-19 05:50:14,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:50:14,851 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:50:14,851 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:50:14,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 05:50:14,851 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-19 05:50:14,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:50:14,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1353806149, now seen corresponding path program 11 times [2024-11-19 05:50:14,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:50:14,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058687741] [2024-11-19 05:50:14,852 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 05:50:14,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:50:14,875 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 05:50:14,875 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:50:15,767 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-11-19 05:50:15,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:50:15,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058687741] [2024-11-19 05:50:15,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058687741] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:50:15,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597101146] [2024-11-19 05:50:15,768 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 05:50:15,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:50:15,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:50:15,771 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:50:15,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 05:50:15,942 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 05:50:15,943 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:50:15,944 INFO L255 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-19 05:50:15,947 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:50:16,221 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 13 treesize of output 9 [2024-11-19 05:50:16,266 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:50:16,266 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 05:50:16,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597101146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:50:16,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 05:50:16,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2024-11-19 05:50:16,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059117022] [2024-11-19 05:50:16,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:50:16,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 05:50:16,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:50:16,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 05:50:16,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-11-19 05:50:17,328 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 181 [2024-11-19 05:50:17,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 559 transitions, 4809 flow. Second operand has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:50:17,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:50:17,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 181 [2024-11-19 05:50:17,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand