./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_75-tricky_address2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_75-tricky_address2_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3c0354ee6107efc04d15102ecf9eef73430e38e14b70f16419cd07cd733fd0df --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 17:09:43,498 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 17:09:43,550 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-14 17:09:43,553 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 17:09:43,553 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 17:09:43,575 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 17:09:43,575 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 17:09:43,576 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 17:09:43,576 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 17:09:43,576 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 17:09:43,577 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 17:09:43,578 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 17:09:43,578 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 17:09:43,578 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 17:09:43,580 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 17:09:43,580 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 17:09:43,581 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 17:09:43,581 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 17:09:43,581 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 17:09:43,581 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 17:09:43,582 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 17:09:43,583 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 17:09:43,583 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-14 17:09:43,586 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 17:09:43,587 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 17:09:43,587 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 17:09:43,587 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 17:09:43,587 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 17:09:43,587 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 17:09:43,588 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 17:09:43,588 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 17:09:43,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:09:43,589 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 17:09:43,589 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 17:09:43,589 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 17:09:43,589 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 17:09:43,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 17:09:43,590 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 17:09:43,590 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 17:09:43,590 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 17:09:43,590 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 17:09:43,591 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c0354ee6107efc04d15102ecf9eef73430e38e14b70f16419cd07cd733fd0df [2024-10-14 17:09:43,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 17:09:43,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 17:09:43,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 17:09:43,834 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 17:09:43,834 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 17:09:43,835 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_75-tricky_address2_racefree.i [2024-10-14 17:09:45,149 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 17:09:45,391 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 17:09:45,392 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_75-tricky_address2_racefree.i [2024-10-14 17:09:45,412 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dc8817d9/3e0771fdc0bf45b5878854c0210f63de/FLAGb61952ee9 [2024-10-14 17:09:45,426 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dc8817d9/3e0771fdc0bf45b5878854c0210f63de [2024-10-14 17:09:45,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 17:09:45,430 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 17:09:45,432 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 17:09:45,433 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 17:09:45,438 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 17:09:45,438 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:09:45" (1/1) ... [2024-10-14 17:09:45,439 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f095de5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:45, skipping insertion in model container [2024-10-14 17:09:45,440 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:09:45" (1/1) ... [2024-10-14 17:09:45,482 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 17:09:45,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:09:45,921 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 17:09:45,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:09:46,017 INFO L204 MainTranslator]: Completed translation [2024-10-14 17:09:46,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:46 WrapperNode [2024-10-14 17:09:46,018 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 17:09:46,019 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 17:09:46,019 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 17:09:46,019 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 17:09:46,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:46" (1/1) ... [2024-10-14 17:09:46,041 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:46" (1/1) ... [2024-10-14 17:09:46,083 INFO L138 Inliner]: procedures = 271, calls = 50, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 286 [2024-10-14 17:09:46,084 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 17:09:46,085 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 17:09:46,088 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 17:09:46,088 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 17:09:46,095 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:46" (1/1) ... [2024-10-14 17:09:46,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:46" (1/1) ... [2024-10-14 17:09:46,103 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:46" (1/1) ... [2024-10-14 17:09:46,103 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:46" (1/1) ... [2024-10-14 17:09:46,114 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:46" (1/1) ... [2024-10-14 17:09:46,117 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:46" (1/1) ... [2024-10-14 17:09:46,119 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:46" (1/1) ... [2024-10-14 17:09:46,120 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:46" (1/1) ... [2024-10-14 17:09:46,123 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 17:09:46,124 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 17:09:46,124 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 17:09:46,124 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 17:09:46,124 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:46" (1/1) ... [2024-10-14 17:09:46,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:09:46,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:09:46,157 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 17:09:46,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 17:09:46,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 17:09:46,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 17:09:46,236 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-14 17:09:46,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-14 17:09:46,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-14 17:09:46,236 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-14 17:09:46,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 17:09:46,236 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-14 17:09:46,236 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-14 17:09:46,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-14 17:09:46,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 17:09:46,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 17:09:46,238 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 17:09:46,350 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 17:09:46,352 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 17:09:46,723 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 17:09:46,724 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 17:09:46,768 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 17:09:46,771 INFO L314 CfgBuilder]: Removed 23 assume(true) statements. [2024-10-14 17:09:46,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:09:46 BoogieIcfgContainer [2024-10-14 17:09:46,772 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 17:09:46,773 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 17:09:46,775 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 17:09:46,778 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 17:09:46,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:09:45" (1/3) ... [2024-10-14 17:09:46,779 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@319fef4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:09:46, skipping insertion in model container [2024-10-14 17:09:46,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:09:46" (2/3) ... [2024-10-14 17:09:46,779 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@319fef4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:09:46, skipping insertion in model container [2024-10-14 17:09:46,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:09:46" (3/3) ... [2024-10-14 17:09:46,781 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_75-tricky_address2_racefree.i [2024-10-14 17:09:46,793 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 17:09:46,793 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-10-14 17:09:46,793 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 17:09:46,864 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-14 17:09:46,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 262 places, 292 transitions, 591 flow [2024-10-14 17:09:46,989 INFO L124 PetriNetUnfolderBase]: 48/421 cut-off events. [2024-10-14 17:09:46,990 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 17:09:46,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 421 events. 48/421 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1688 event pairs, 0 based on Foata normal form. 0/351 useless extension candidates. Maximal degree in co-relation 245. Up to 8 conditions per place. [2024-10-14 17:09:46,997 INFO L82 GeneralOperation]: Start removeDead. Operand has 262 places, 292 transitions, 591 flow [2024-10-14 17:09:47,002 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 262 places, 292 transitions, 591 flow [2024-10-14 17:09:47,015 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 17:09:47,023 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;@3fa92471, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 17:09:47,027 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-10-14 17:09:47,041 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 17:09:47,045 INFO L124 PetriNetUnfolderBase]: 8/74 cut-off events. [2024-10-14 17:09:47,045 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:09:47,045 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:47,046 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] [2024-10-14 17:09:47,046 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-14 17:09:47,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:47,054 INFO L85 PathProgramCache]: Analyzing trace with hash 799831410, now seen corresponding path program 1 times [2024-10-14 17:09:47,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:47,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837720213] [2024-10-14 17:09:47,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:47,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:47,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:47,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:09:47,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:09:47,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837720213] [2024-10-14 17:09:47,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837720213] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:09:47,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:09:47,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 17:09:47,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561016991] [2024-10-14 17:09:47,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:09:47,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:09:47,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:09:47,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:09:47,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:09:47,478 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 292 [2024-10-14 17:09:47,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 292 transitions, 591 flow. Second operand has 3 states, 3 states have (on average 238.33333333333334) internal successors, (715), 3 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:09:47,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:09:47,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 292 [2024-10-14 17:09:47,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:09:47,670 INFO L124 PetriNetUnfolderBase]: 85/1248 cut-off events. [2024-10-14 17:09:47,670 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-14 17:09:47,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1432 conditions, 1248 events. 85/1248 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8295 event pairs, 72 based on Foata normal form. 206/1339 useless extension candidates. Maximal degree in co-relation 1247. Up to 178 conditions per place. [2024-10-14 17:09:47,682 INFO L140 encePairwiseOnDemand]: 260/292 looper letters, 23 selfloop transitions, 2 changer transitions 1/260 dead transitions. [2024-10-14 17:09:47,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 260 transitions, 577 flow [2024-10-14 17:09:47,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:09:47,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:09:47,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 767 transitions. [2024-10-14 17:09:47,697 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8755707762557078 [2024-10-14 17:09:47,698 INFO L175 Difference]: Start difference. First operand has 262 places, 292 transitions, 591 flow. Second operand 3 states and 767 transitions. [2024-10-14 17:09:47,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 260 transitions, 577 flow [2024-10-14 17:09:47,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 260 transitions, 577 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:09:47,707 INFO L231 Difference]: Finished difference. Result has 261 places, 259 transitions, 535 flow [2024-10-14 17:09:47,709 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=292, PETRI_DIFFERENCE_MINUEND_FLOW=525, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=535, PETRI_PLACES=261, PETRI_TRANSITIONS=259} [2024-10-14 17:09:47,713 INFO L277 CegarLoopForPetriNet]: 262 programPoint places, -1 predicate places. [2024-10-14 17:09:47,713 INFO L471 AbstractCegarLoop]: Abstraction has has 261 places, 259 transitions, 535 flow [2024-10-14 17:09:47,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 238.33333333333334) internal successors, (715), 3 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:09:47,714 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:47,714 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] [2024-10-14 17:09:47,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 17:09:47,715 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-14 17:09:47,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:47,716 INFO L85 PathProgramCache]: Analyzing trace with hash 23099031, now seen corresponding path program 1 times [2024-10-14 17:09:47,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:47,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326957565] [2024-10-14 17:09:47,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:47,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:47,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:47,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:09:47,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:09:47,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326957565] [2024-10-14 17:09:47,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326957565] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:09:47,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468583708] [2024-10-14 17:09:47,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:47,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:09:47,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:09:47,889 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:09:47,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 17:09:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:47,982 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 17:09:47,986 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:09:48,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:09:48,033 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:09:48,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:09:48,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468583708] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:09:48,080 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:09:48,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-14 17:09:48,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235723056] [2024-10-14 17:09:48,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:09:48,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 17:09:48,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:09:48,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 17:09:48,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-14 17:09:48,142 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 292 [2024-10-14 17:09:48,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 259 transitions, 535 flow. Second operand has 10 states, 10 states have (on average 235.8) internal successors, (2358), 10 states have internal predecessors, (2358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:09:48,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:09:48,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 292 [2024-10-14 17:09:48,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:09:48,443 INFO L124 PetriNetUnfolderBase]: 85/1254 cut-off events. [2024-10-14 17:09:48,444 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-14 17:09:48,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1457 conditions, 1254 events. 85/1254 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8320 event pairs, 72 based on Foata normal form. 2/1142 useless extension candidates. Maximal degree in co-relation 1421. Up to 178 conditions per place. [2024-10-14 17:09:48,450 INFO L140 encePairwiseOnDemand]: 286/292 looper letters, 27 selfloop transitions, 9 changer transitions 0/267 dead transitions. [2024-10-14 17:09:48,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 267 transitions, 625 flow [2024-10-14 17:09:48,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 17:09:48,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-14 17:09:48,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2144 transitions. [2024-10-14 17:09:48,454 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8158295281582952 [2024-10-14 17:09:48,454 INFO L175 Difference]: Start difference. First operand has 261 places, 259 transitions, 535 flow. Second operand 9 states and 2144 transitions. [2024-10-14 17:09:48,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 267 transitions, 625 flow [2024-10-14 17:09:48,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 267 transitions, 623 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:09:48,458 INFO L231 Difference]: Finished difference. Result has 270 places, 265 transitions, 583 flow [2024-10-14 17:09:48,458 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=292, PETRI_DIFFERENCE_MINUEND_FLOW=533, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=583, PETRI_PLACES=270, PETRI_TRANSITIONS=265} [2024-10-14 17:09:48,459 INFO L277 CegarLoopForPetriNet]: 262 programPoint places, 8 predicate places. [2024-10-14 17:09:48,459 INFO L471 AbstractCegarLoop]: Abstraction has has 270 places, 265 transitions, 583 flow [2024-10-14 17:09:48,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 235.8) internal successors, (2358), 10 states have internal predecessors, (2358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:09:48,460 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:48,461 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] [2024-10-14 17:09:48,477 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 17:09:48,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:09:48,666 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-14 17:09:48,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:48,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1097008265, now seen corresponding path program 2 times [2024-10-14 17:09:48,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:48,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525021137] [2024-10-14 17:09:48,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:48,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:48,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:48,820 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:09:48,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:09:48,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525021137] [2024-10-14 17:09:48,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525021137] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:09:48,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078976579] [2024-10-14 17:09:48,820 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 17:09:48,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:09:48,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:09:48,823 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:09:48,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 17:09:48,892 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 17:09:48,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:09:48,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-14 17:09:48,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:09:48,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-14 17:09:49,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-10-14 17:09:49,055 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:09:49,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-10-14 17:09:49,096 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:09:49,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-10-14 17:09:49,124 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 17:09:49,124 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:09:49,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078976579] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:09:49,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:09:49,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-10-14 17:09:49,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577415726] [2024-10-14 17:09:49,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:09:49,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 17:09:49,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:09:49,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 17:09:49,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-14 17:09:49,397 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 292 [2024-10-14 17:09:49,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 265 transitions, 583 flow. Second operand has 8 states, 8 states have (on average 185.125) internal successors, (1481), 8 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:09:49,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:09:49,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 292 [2024-10-14 17:09:49,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:09:50,065 INFO L124 PetriNetUnfolderBase]: 1305/4917 cut-off events. [2024-10-14 17:09:50,065 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-14 17:09:50,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7545 conditions, 4917 events. 1305/4917 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 43457 event pairs, 1025 based on Foata normal form. 1/4493 useless extension candidates. Maximal degree in co-relation 7480. Up to 2440 conditions per place. [2024-10-14 17:09:50,083 INFO L140 encePairwiseOnDemand]: 280/292 looper letters, 127 selfloop transitions, 11 changer transitions 2/328 dead transitions. [2024-10-14 17:09:50,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 328 transitions, 989 flow [2024-10-14 17:09:50,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 17:09:50,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-14 17:09:50,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1614 transitions. [2024-10-14 17:09:50,087 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6909246575342466 [2024-10-14 17:09:50,087 INFO L175 Difference]: Start difference. First operand has 270 places, 265 transitions, 583 flow. Second operand 8 states and 1614 transitions. [2024-10-14 17:09:50,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 328 transitions, 989 flow [2024-10-14 17:09:50,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 328 transitions, 983 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-14 17:09:50,091 INFO L231 Difference]: Finished difference. Result has 281 places, 272 transitions, 644 flow [2024-10-14 17:09:50,092 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=292, PETRI_DIFFERENCE_MINUEND_FLOW=577, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=644, PETRI_PLACES=281, PETRI_TRANSITIONS=272} [2024-10-14 17:09:50,093 INFO L277 CegarLoopForPetriNet]: 262 programPoint places, 19 predicate places. [2024-10-14 17:09:50,093 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 272 transitions, 644 flow [2024-10-14 17:09:50,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 185.125) internal successors, (1481), 8 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:09:50,094 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:50,094 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:09:50,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-14 17:09:50,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-14 17:09:50,299 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-14 17:09:50,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:50,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1578159233, now seen corresponding path program 1 times [2024-10-14 17:09:50,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:50,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206439091] [2024-10-14 17:09:50,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:50,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:50,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:50,498 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 17:09:50,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:09:50,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206439091] [2024-10-14 17:09:50,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206439091] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:09:50,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089584013] [2024-10-14 17:09:50,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:50,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:09:50,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:09:50,502 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:09:50,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 17:09:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:50,610 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 17:09:50,615 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:09:50,667 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 17:09:50,667 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:09:50,773 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 17:09:50,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089584013] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:09:50,773 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:09:50,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-14 17:09:50,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876463015] [2024-10-14 17:09:50,774 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:09:50,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-14 17:09:50,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:09:50,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-14 17:09:50,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-14 17:09:50,800 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 292 [2024-10-14 17:09:50,803 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 272 transitions, 644 flow. Second operand has 18 states, 18 states have (on average 235.94444444444446) internal successors, (4247), 18 states have internal predecessors, (4247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:09:50,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:09:50,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 292 [2024-10-14 17:09:50,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:09:51,114 INFO L124 PetriNetUnfolderBase]: 88/1263 cut-off events. [2024-10-14 17:09:51,115 INFO L125 PetriNetUnfolderBase]: For 30/34 co-relation queries the response was YES. [2024-10-14 17:09:51,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1569 conditions, 1263 events. 88/1263 cut-off events. For 30/34 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8441 event pairs, 74 based on Foata normal form. 4/1157 useless extension candidates. Maximal degree in co-relation 1427. Up to 175 conditions per place. [2024-10-14 17:09:51,120 INFO L140 encePairwiseOnDemand]: 286/292 looper letters, 31 selfloop transitions, 21 changer transitions 0/290 dead transitions. [2024-10-14 17:09:51,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 290 transitions, 836 flow [2024-10-14 17:09:51,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-14 17:09:51,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-14 17:09:51,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4970 transitions. [2024-10-14 17:09:51,127 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8105022831050228 [2024-10-14 17:09:51,127 INFO L175 Difference]: Start difference. First operand has 281 places, 272 transitions, 644 flow. Second operand 21 states and 4970 transitions. [2024-10-14 17:09:51,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 290 transitions, 836 flow [2024-10-14 17:09:51,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 290 transitions, 829 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:09:51,134 INFO L231 Difference]: Finished difference. Result has 304 places, 285 transitions, 767 flow [2024-10-14 17:09:51,135 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=292, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=767, PETRI_PLACES=304, PETRI_TRANSITIONS=285} [2024-10-14 17:09:51,135 INFO L277 CegarLoopForPetriNet]: 262 programPoint places, 42 predicate places. [2024-10-14 17:09:51,136 INFO L471 AbstractCegarLoop]: Abstraction has has 304 places, 285 transitions, 767 flow [2024-10-14 17:09:51,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 235.94444444444446) internal successors, (4247), 18 states have internal predecessors, (4247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:09:51,138 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:51,139 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:09:51,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 17:09:51,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:09:51,343 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-14 17:09:51,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:51,344 INFO L85 PathProgramCache]: Analyzing trace with hash 736519487, now seen corresponding path program 2 times [2024-10-14 17:09:51,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:51,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261075594] [2024-10-14 17:09:51,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:51,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:51,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:51,618 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 17:09:51,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:09:51,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261075594] [2024-10-14 17:09:51,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261075594] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:09:51,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191088315] [2024-10-14 17:09:51,619 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 17:09:51,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:09:51,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:09:51,621 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:09:51,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 17:09:51,690 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 17:09:51,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:09:51,692 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-14 17:09:51,694 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:09:51,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-14 17:09:51,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-14 17:09:51,746 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:09:51,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-14 17:09:51,779 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:09:51,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-14 17:09:51,807 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-14 17:09:51,807 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:09:51,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191088315] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:09:51,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:09:51,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-14 17:09:51,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510095254] [2024-10-14 17:09:51,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:09:51,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:09:51,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:09:51,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:09:51,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-14 17:09:52,119 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 292 [2024-10-14 17:09:52,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 285 transitions, 767 flow. Second operand has 6 states, 6 states have (on average 187.66666666666666) internal successors, (1126), 6 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:09:52,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:09:52,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 292 [2024-10-14 17:09:52,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:09:53,071 INFO L124 PetriNetUnfolderBase]: 1363/5123 cut-off events. [2024-10-14 17:09:53,071 INFO L125 PetriNetUnfolderBase]: For 281/281 co-relation queries the response was YES. [2024-10-14 17:09:53,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8312 conditions, 5123 events. 1363/5123 cut-off events. For 281/281 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 45373 event pairs, 1033 based on Foata normal form. 29/4725 useless extension candidates. Maximal degree in co-relation 8163. Up to 2525 conditions per place. [2024-10-14 17:09:53,098 INFO L140 encePairwiseOnDemand]: 265/292 looper letters, 107 selfloop transitions, 92 changer transitions 0/401 dead transitions. [2024-10-14 17:09:53,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 401 transitions, 1419 flow [2024-10-14 17:09:53,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:09:53,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:09:53,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1304 transitions. [2024-10-14 17:09:53,102 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7442922374429224 [2024-10-14 17:09:53,102 INFO L175 Difference]: Start difference. First operand has 304 places, 285 transitions, 767 flow. Second operand 6 states and 1304 transitions. [2024-10-14 17:09:53,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 401 transitions, 1419 flow [2024-10-14 17:09:53,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 401 transitions, 1395 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-14 17:09:53,113 INFO L231 Difference]: Finished difference. Result has 308 places, 369 transitions, 1351 flow [2024-10-14 17:09:53,113 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=292, PETRI_DIFFERENCE_MINUEND_FLOW=743, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1351, PETRI_PLACES=308, PETRI_TRANSITIONS=369} [2024-10-14 17:09:53,114 INFO L277 CegarLoopForPetriNet]: 262 programPoint places, 46 predicate places. [2024-10-14 17:09:53,114 INFO L471 AbstractCegarLoop]: Abstraction has has 308 places, 369 transitions, 1351 flow [2024-10-14 17:09:53,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 187.66666666666666) internal successors, (1126), 6 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:09:53,115 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:53,115 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:09:53,131 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 17:09:53,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:09:53,316 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-14 17:09:53,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:53,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1357268540, now seen corresponding path program 1 times [2024-10-14 17:09:53,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:53,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527085148] [2024-10-14 17:09:53,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:53,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:53,722 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-14 17:09:53,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:09:53,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527085148] [2024-10-14 17:09:53,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527085148] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:09:53,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353377173] [2024-10-14 17:09:53,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:53,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:09:53,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:09:53,724 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:09:53,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 17:09:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:53,851 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-14 17:09:53,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:09:53,911 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-14 17:09:53,911 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:09:54,058 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-14 17:09:54,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353377173] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:09:54,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:09:54,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-14 17:09:54,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632802008] [2024-10-14 17:09:54,060 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:09:54,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-14 17:09:54,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:09:54,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-14 17:09:54,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-14 17:09:54,091 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 292 [2024-10-14 17:09:54,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 369 transitions, 1351 flow. Second operand has 23 states, 23 states have (on average 236.04347826086956) internal successors, (5429), 23 states have internal predecessors, (5429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:09:54,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:09:54,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 292 [2024-10-14 17:09:54,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:09:54,601 INFO L124 PetriNetUnfolderBase]: 207/1876 cut-off events. [2024-10-14 17:09:54,602 INFO L125 PetriNetUnfolderBase]: For 459/523 co-relation queries the response was YES. [2024-10-14 17:09:54,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2975 conditions, 1876 events. 207/1876 cut-off events. For 459/523 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 14426 event pairs, 72 based on Foata normal form. 3/1739 useless extension candidates. Maximal degree in co-relation 2746. Up to 232 conditions per place. [2024-10-14 17:09:54,612 INFO L140 encePairwiseOnDemand]: 286/292 looper letters, 34 selfloop transitions, 30 changer transitions 0/386 dead transitions. [2024-10-14 17:09:54,612 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 386 transitions, 1601 flow [2024-10-14 17:09:54,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-14 17:09:54,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-14 17:09:54,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 7087 transitions. [2024-10-14 17:09:54,624 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8090182648401827 [2024-10-14 17:09:54,624 INFO L175 Difference]: Start difference. First operand has 308 places, 369 transitions, 1351 flow. Second operand 30 states and 7087 transitions. [2024-10-14 17:09:54,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 386 transitions, 1601 flow [2024-10-14 17:09:54,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 386 transitions, 1583 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-10-14 17:09:54,634 INFO L231 Difference]: Finished difference. Result has 341 places, 379 transitions, 1485 flow [2024-10-14 17:09:54,635 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=292, PETRI_DIFFERENCE_MINUEND_FLOW=1333, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1485, PETRI_PLACES=341, PETRI_TRANSITIONS=379} [2024-10-14 17:09:54,635 INFO L277 CegarLoopForPetriNet]: 262 programPoint places, 79 predicate places. [2024-10-14 17:09:54,635 INFO L471 AbstractCegarLoop]: Abstraction has has 341 places, 379 transitions, 1485 flow [2024-10-14 17:09:54,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 236.04347826086956) internal successors, (5429), 23 states have internal predecessors, (5429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:09:54,637 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:54,638 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:09:54,659 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-14 17:09:54,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:09:54,841 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-14 17:09:54,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:54,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1730208001, now seen corresponding path program 2 times [2024-10-14 17:09:54,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:54,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702094386] [2024-10-14 17:09:54,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:54,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:54,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 17:09:54,883 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 17:09:54,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 17:09:54,945 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 17:09:54,945 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 17:09:54,946 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-10-14 17:09:54,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-10-14 17:09:54,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-10-14 17:09:54,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-10-14 17:09:54,948 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-10-14 17:09:54,949 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-10-14 17:09:54,951 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-10-14 17:09:54,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-10-14 17:09:54,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-10-14 17:09:54,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-10-14 17:09:54,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-10-14 17:09:54,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-10-14 17:09:54,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-10-14 17:09:54,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-10-14 17:09:54,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-10-14 17:09:54,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-10-14 17:09:54,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-10-14 17:09:54,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-10-14 17:09:54,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 17:09:54,955 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1] [2024-10-14 17:09:54,957 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-14 17:09:54,958 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-14 17:09:55,011 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-14 17:09:55,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 364 places, 407 transitions, 830 flow [2024-10-14 17:09:55,117 INFO L124 PetriNetUnfolderBase]: 80/693 cut-off events. [2024-10-14 17:09:55,118 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2024-10-14 17:09:55,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 705 conditions, 693 events. 80/693 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3395 event pairs, 0 based on Foata normal form. 0/577 useless extension candidates. Maximal degree in co-relation 423. Up to 12 conditions per place. [2024-10-14 17:09:55,123 INFO L82 GeneralOperation]: Start removeDead. Operand has 364 places, 407 transitions, 830 flow [2024-10-14 17:09:55,128 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 364 places, 407 transitions, 830 flow [2024-10-14 17:09:55,129 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 17:09:55,129 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;@3fa92471, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 17:09:55,129 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-10-14 17:09:55,132 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 17:09:55,132 INFO L124 PetriNetUnfolderBase]: 8/74 cut-off events. [2024-10-14 17:09:55,132 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:09:55,133 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:55,133 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] [2024-10-14 17:09:55,133 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-14 17:09:55,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:55,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1791768919, now seen corresponding path program 1 times [2024-10-14 17:09:55,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:55,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969852361] [2024-10-14 17:09:55,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:55,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:55,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:55,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:09:55,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:09:55,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969852361] [2024-10-14 17:09:55,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969852361] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:09:55,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:09:55,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 17:09:55,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048851902] [2024-10-14 17:09:55,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:09:55,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:09:55,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:09:55,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:09:55,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:09:55,165 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 328 out of 407 [2024-10-14 17:09:55,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 407 transitions, 830 flow. Second operand has 3 states, 3 states have (on average 329.3333333333333) internal successors, (988), 3 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:09:55,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:09:55,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 328 of 407 [2024-10-14 17:09:55,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:09:56,552 INFO L124 PetriNetUnfolderBase]: 1580/11575 cut-off events. [2024-10-14 17:09:56,552 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2024-10-14 17:09:56,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14036 conditions, 11575 events. 1580/11575 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 138793 event pairs, 1464 based on Foata normal form. 2929/13601 useless extension candidates. Maximal degree in co-relation 12445. Up to 2408 conditions per place. [2024-10-14 17:09:56,624 INFO L140 encePairwiseOnDemand]: 362/407 looper letters, 33 selfloop transitions, 2 changer transitions 1/360 dead transitions. [2024-10-14 17:09:56,624 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 360 transitions, 806 flow [2024-10-14 17:09:56,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:09:56,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:09:56,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1063 transitions. [2024-10-14 17:09:56,627 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8705978705978706 [2024-10-14 17:09:56,627 INFO L175 Difference]: Start difference. First operand has 364 places, 407 transitions, 830 flow. Second operand 3 states and 1063 transitions. [2024-10-14 17:09:56,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 360 transitions, 806 flow [2024-10-14 17:09:56,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 360 transitions, 806 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:09:56,632 INFO L231 Difference]: Finished difference. Result has 361 places, 359 transitions, 744 flow [2024-10-14 17:09:56,632 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=734, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=744, PETRI_PLACES=361, PETRI_TRANSITIONS=359} [2024-10-14 17:09:56,633 INFO L277 CegarLoopForPetriNet]: 364 programPoint places, -3 predicate places. [2024-10-14 17:09:56,633 INFO L471 AbstractCegarLoop]: Abstraction has has 361 places, 359 transitions, 744 flow [2024-10-14 17:09:56,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 329.3333333333333) internal successors, (988), 3 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:09:56,634 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:56,634 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] [2024-10-14 17:09:56,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 17:09:56,634 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-14 17:09:56,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:56,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1513825385, now seen corresponding path program 1 times [2024-10-14 17:09:56,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:56,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902483271] [2024-10-14 17:09:56,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:56,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:56,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:09:56,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:09:56,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902483271] [2024-10-14 17:09:56,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902483271] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:09:56,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560637712] [2024-10-14 17:09:56,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:56,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:09:56,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:09:56,690 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:09:56,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 17:09:56,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:56,767 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 17:09:56,768 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:09:56,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:09:56,788 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:09:56,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:09:56,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560637712] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:09:56,810 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:09:56,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-14 17:09:56,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017337361] [2024-10-14 17:09:56,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:09:56,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 17:09:56,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:09:56,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 17:09:56,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-14 17:09:56,830 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 407 [2024-10-14 17:09:56,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 359 transitions, 744 flow. Second operand has 10 states, 10 states have (on average 326.8) internal successors, (3268), 10 states have internal predecessors, (3268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:09:56,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:09:56,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 407 [2024-10-14 17:09:56,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:09:58,119 INFO L124 PetriNetUnfolderBase]: 1580/11581 cut-off events. [2024-10-14 17:09:58,120 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2024-10-14 17:09:58,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14061 conditions, 11581 events. 1580/11581 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 138780 event pairs, 1464 based on Foata normal form. 2/10681 useless extension candidates. Maximal degree in co-relation 14024. Up to 2408 conditions per place. [2024-10-14 17:09:58,219 INFO L140 encePairwiseOnDemand]: 401/407 looper letters, 37 selfloop transitions, 9 changer transitions 0/367 dead transitions. [2024-10-14 17:09:58,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 367 transitions, 854 flow [2024-10-14 17:09:58,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 17:09:58,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-14 17:09:58,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2973 transitions. [2024-10-14 17:09:58,227 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8116298116298116 [2024-10-14 17:09:58,227 INFO L175 Difference]: Start difference. First operand has 361 places, 359 transitions, 744 flow. Second operand 9 states and 2973 transitions. [2024-10-14 17:09:58,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 367 transitions, 854 flow [2024-10-14 17:09:58,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 367 transitions, 852 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:09:58,232 INFO L231 Difference]: Finished difference. Result has 370 places, 365 transitions, 792 flow [2024-10-14 17:09:58,233 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=742, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=792, PETRI_PLACES=370, PETRI_TRANSITIONS=365} [2024-10-14 17:09:58,233 INFO L277 CegarLoopForPetriNet]: 364 programPoint places, 6 predicate places. [2024-10-14 17:09:58,233 INFO L471 AbstractCegarLoop]: Abstraction has has 370 places, 365 transitions, 792 flow [2024-10-14 17:09:58,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 326.8) internal successors, (3268), 10 states have internal predecessors, (3268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:09:58,234 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:09:58,234 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] [2024-10-14 17:09:58,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-14 17:09:58,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:09:58,441 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-14 17:09:58,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:09:58,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1731727657, now seen corresponding path program 2 times [2024-10-14 17:09:58,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:09:58,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986901183] [2024-10-14 17:09:58,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:09:58,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:09:58,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:09:58,542 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:09:58,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:09:58,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986901183] [2024-10-14 17:09:58,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986901183] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:09:58,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609153332] [2024-10-14 17:09:58,543 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 17:09:58,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:09:58,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:09:58,546 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:09:58,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 17:09:58,633 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 17:09:58,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:09:58,635 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-14 17:09:58,642 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:09:58,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-14 17:09:58,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-10-14 17:09:58,760 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:09:58,760 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-10-14 17:09:58,803 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:09:58,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-10-14 17:09:58,838 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 17:09:58,839 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:09:58,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609153332] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:09:58,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:09:58,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-10-14 17:09:58,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390290623] [2024-10-14 17:09:58,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:09:58,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 17:09:58,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:09:58,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 17:09:58,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-14 17:09:59,348 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 407 [2024-10-14 17:09:59,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 365 transitions, 792 flow. Second operand has 8 states, 8 states have (on average 256.125) internal successors, (2049), 8 states have internal predecessors, (2049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:09:59,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:09:59,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 407 [2024-10-14 17:09:59,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:10:21,389 INFO L124 PetriNetUnfolderBase]: 77257/187710 cut-off events. [2024-10-14 17:10:21,389 INFO L125 PetriNetUnfolderBase]: For 288/312 co-relation queries the response was YES. [2024-10-14 17:10:22,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303604 conditions, 187710 events. 77257/187710 cut-off events. For 288/312 co-relation queries the response was YES. Maximal size of possible extension queue 3591. Compared 2510808 event pairs, 66469 based on Foata normal form. 1/173411 useless extension candidates. Maximal degree in co-relation 303538. Up to 110426 conditions per place. [2024-10-14 17:10:22,602 INFO L140 encePairwiseOnDemand]: 395/407 looper letters, 188 selfloop transitions, 11 changer transitions 0/457 dead transitions. [2024-10-14 17:10:22,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 457 transitions, 1374 flow [2024-10-14 17:10:22,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 17:10:22,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-14 17:10:22,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2241 transitions. [2024-10-14 17:10:22,606 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6882678132678133 [2024-10-14 17:10:22,606 INFO L175 Difference]: Start difference. First operand has 370 places, 365 transitions, 792 flow. Second operand 8 states and 2241 transitions. [2024-10-14 17:10:22,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 457 transitions, 1374 flow [2024-10-14 17:10:22,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 457 transitions, 1368 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-14 17:10:22,612 INFO L231 Difference]: Finished difference. Result has 381 places, 373 transitions, 857 flow [2024-10-14 17:10:22,613 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=786, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=857, PETRI_PLACES=381, PETRI_TRANSITIONS=373} [2024-10-14 17:10:22,613 INFO L277 CegarLoopForPetriNet]: 364 programPoint places, 17 predicate places. [2024-10-14 17:10:22,613 INFO L471 AbstractCegarLoop]: Abstraction has has 381 places, 373 transitions, 857 flow [2024-10-14 17:10:22,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 256.125) internal successors, (2049), 8 states have internal predecessors, (2049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:10:22,614 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:10:22,614 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:10:22,636 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-14 17:10:22,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:10:22,815 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-14 17:10:22,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:10:22,816 INFO L85 PathProgramCache]: Analyzing trace with hash 2060749358, now seen corresponding path program 1 times [2024-10-14 17:10:22,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:10:22,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115798078] [2024-10-14 17:10:22,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:10:22,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:10:22,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:10:22,919 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 17:10:22,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:10:22,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115798078] [2024-10-14 17:10:22,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115798078] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:10:22,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761300348] [2024-10-14 17:10:22,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:10:22,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:10:22,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:10:22,923 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:10:22,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 17:10:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:10:23,006 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 17:10:23,007 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:10:23,032 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 17:10:23,033 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:10:23,095 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 17:10:23,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [761300348] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:10:23,095 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:10:23,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-14 17:10:23,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973728392] [2024-10-14 17:10:23,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:10:23,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-14 17:10:23,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:10:23,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-14 17:10:23,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-14 17:10:23,118 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 407 [2024-10-14 17:10:23,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 373 transitions, 857 flow. Second operand has 18 states, 18 states have (on average 326.94444444444446) internal successors, (5885), 18 states have internal predecessors, (5885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:10:23,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:10:23,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 407 [2024-10-14 17:10:23,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:10:25,122 INFO L124 PetriNetUnfolderBase]: 1631/12143 cut-off events. [2024-10-14 17:10:25,123 INFO L125 PetriNetUnfolderBase]: For 115/119 co-relation queries the response was YES. [2024-10-14 17:10:25,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15038 conditions, 12143 events. 1631/12143 cut-off events. For 115/119 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 148282 event pairs, 1508 based on Foata normal form. 4/11191 useless extension candidates. Maximal degree in co-relation 14895. Up to 2474 conditions per place. [2024-10-14 17:10:25,190 INFO L140 encePairwiseOnDemand]: 401/407 looper letters, 41 selfloop transitions, 21 changer transitions 0/391 dead transitions. [2024-10-14 17:10:25,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 391 transitions, 1069 flow [2024-10-14 17:10:25,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-14 17:10:25,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-14 17:10:25,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6891 transitions. [2024-10-14 17:10:25,213 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8062478062478062 [2024-10-14 17:10:25,214 INFO L175 Difference]: Start difference. First operand has 381 places, 373 transitions, 857 flow. Second operand 21 states and 6891 transitions. [2024-10-14 17:10:25,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 391 transitions, 1069 flow [2024-10-14 17:10:25,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 391 transitions, 1067 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:10:25,225 INFO L231 Difference]: Finished difference. Result has 405 places, 386 transitions, 985 flow [2024-10-14 17:10:25,229 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=855, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=985, PETRI_PLACES=405, PETRI_TRANSITIONS=386} [2024-10-14 17:10:25,230 INFO L277 CegarLoopForPetriNet]: 364 programPoint places, 41 predicate places. [2024-10-14 17:10:25,231 INFO L471 AbstractCegarLoop]: Abstraction has has 405 places, 386 transitions, 985 flow [2024-10-14 17:10:25,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 326.94444444444446) internal successors, (5885), 18 states have internal predecessors, (5885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:10:25,237 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:10:25,237 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:10:25,261 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-14 17:10:25,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-14 17:10:25,438 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-14 17:10:25,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:10:25,439 INFO L85 PathProgramCache]: Analyzing trace with hash 894443694, now seen corresponding path program 2 times [2024-10-14 17:10:25,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:10:25,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859554778] [2024-10-14 17:10:25,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:10:25,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:10:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:10:25,720 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 17:10:25,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:10:25,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859554778] [2024-10-14 17:10:25,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859554778] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:10:25,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560104835] [2024-10-14 17:10:25,721 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 17:10:25,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:10:25,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:10:25,723 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:10:25,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-14 17:10:25,812 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 17:10:25,813 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:10:25,813 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-14 17:10:25,816 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:10:25,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-14 17:10:25,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-14 17:10:25,881 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:10:25,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-14 17:10:25,908 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:10:25,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-14 17:10:25,934 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-14 17:10:25,934 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 17:10:25,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560104835] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:10:25,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 17:10:25,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-14 17:10:25,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564882468] [2024-10-14 17:10:25,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:10:25,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:10:25,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:10:25,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:10:25,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-14 17:10:26,224 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 407 [2024-10-14 17:10:26,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 386 transitions, 985 flow. Second operand has 6 states, 6 states have (on average 258.6666666666667) internal successors, (1552), 6 states have internal predecessors, (1552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:10:26,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:10:26,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 407 [2024-10-14 17:10:26,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand