./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_76-tricky_address3_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 53e3b4cf7a6885129025777f14c3b33a959debd694827832fbe127376cb0a5f9 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:11:51,249 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:11:51,330 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 17:11:51,333 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:11:51,334 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:11:51,354 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:11:51,354 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:11:51,355 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:11:51,355 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:11:51,356 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:11:51,356 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:11:51,357 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:11:51,357 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:11:51,357 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:11:51,358 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 17:11:51,358 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:11:51,359 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:11:51,359 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:11:51,359 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:11:51,360 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 17:11:51,360 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:11:51,361 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 17:11:51,361 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 17:11:51,361 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:11:51,362 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:11:51,362 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:11:51,362 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 17:11:51,363 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:11:51,363 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:11:51,363 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:11:51,364 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:11:51,364 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:11:51,365 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:11:51,365 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:11:51,365 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 17:11:51,366 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:11:51,366 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:11:51,366 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:11:51,366 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:11:51,375 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:11:51,375 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:11:51,377 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53e3b4cf7a6885129025777f14c3b33a959debd694827832fbe127376cb0a5f9 [2024-10-11 17:11:51,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:11:51,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:11:51,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:11:51,646 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:11:51,646 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:11:51,647 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i [2024-10-11 17:11:53,138 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:11:53,391 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:11:53,394 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i [2024-10-11 17:11:53,416 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/4f82cc362/1f264a14862545bc9120715d6c195ef2/FLAGd6c1d48ea [2024-10-11 17:11:53,437 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/4f82cc362/1f264a14862545bc9120715d6c195ef2 [2024-10-11 17:11:53,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:11:53,442 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:11:53,445 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:11:53,445 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:11:53,450 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:11:53,451 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:11:53" (1/1) ... [2024-10-11 17:11:53,452 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3174b6d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:11:53, skipping insertion in model container [2024-10-11 17:11:53,452 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:11:53" (1/1) ... [2024-10-11 17:11:53,514 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:11:54,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:11:54,039 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:11:54,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:11:54,180 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:11:54,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:11:54 WrapperNode [2024-10-11 17:11:54,181 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:11:54,182 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:11:54,182 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:11:54,182 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:11:54,189 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:11:54" (1/1) ... [2024-10-11 17:11:54,219 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:11:54" (1/1) ... [2024-10-11 17:11:54,261 INFO L138 Inliner]: procedures = 271, calls = 50, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 289 [2024-10-11 17:11:54,262 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:11:54,263 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:11:54,263 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:11:54,263 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:11:54,273 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:11:54" (1/1) ... [2024-10-11 17:11:54,273 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:11:54" (1/1) ... [2024-10-11 17:11:54,282 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:11:54" (1/1) ... [2024-10-11 17:11:54,282 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:11:54" (1/1) ... [2024-10-11 17:11:54,297 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:11:54" (1/1) ... [2024-10-11 17:11:54,302 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:11:54" (1/1) ... [2024-10-11 17:11:54,305 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:11:54" (1/1) ... [2024-10-11 17:11:54,306 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:11:54" (1/1) ... [2024-10-11 17:11:54,310 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:11:54,313 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:11:54,313 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:11:54,313 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:11:54,314 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:11:54" (1/1) ... [2024-10-11 17:11:54,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:11:54,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:11:54,370 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 17:11:54,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 17:11:54,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 17:11:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 17:11:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 17:11:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 17:11:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 17:11:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 17:11:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:11:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-11 17:11:54,430 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-11 17:11:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 17:11:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:11:54,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:11:54,432 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 17:11:54,621 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:11:54,625 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:11:55,121 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 17:11:55,122 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:11:55,173 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:11:55,173 INFO L314 CfgBuilder]: Removed 23 assume(true) statements. [2024-10-11 17:11:55,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:11:55 BoogieIcfgContainer [2024-10-11 17:11:55,174 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:11:55,199 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:11:55,199 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:11:55,206 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:11:55,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:11:53" (1/3) ... [2024-10-11 17:11:55,207 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a51e511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:11:55, skipping insertion in model container [2024-10-11 17:11:55,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:11:54" (2/3) ... [2024-10-11 17:11:55,208 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a51e511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:11:55, skipping insertion in model container [2024-10-11 17:11:55,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:11:55" (3/3) ... [2024-10-11 17:11:55,209 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_76-tricky_address3_racefree.i [2024-10-11 17:11:55,243 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:11:55,244 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-10-11 17:11:55,244 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 17:11:55,340 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-11 17:11:55,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 265 places, 295 transitions, 597 flow [2024-10-11 17:11:55,533 INFO L124 PetriNetUnfolderBase]: 48/424 cut-off events. [2024-10-11 17:11:55,533 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:11:55,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 429 conditions, 424 events. 48/424 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1671 event pairs, 0 based on Foata normal form. 0/354 useless extension candidates. Maximal degree in co-relation 248. Up to 8 conditions per place. [2024-10-11 17:11:55,548 INFO L82 GeneralOperation]: Start removeDead. Operand has 265 places, 295 transitions, 597 flow [2024-10-11 17:11:55,562 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 265 places, 295 transitions, 597 flow [2024-10-11 17:11:55,572 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:11:55,581 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;@7b9adf5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:11:55,581 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-10-11 17:11:55,600 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:11:55,600 INFO L124 PetriNetUnfolderBase]: 8/74 cut-off events. [2024-10-11 17:11:55,600 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:11:55,601 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:11:55,601 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] [2024-10-11 17:11:55,602 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)] === [2024-10-11 17:11:55,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:11:55,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1287411917, now seen corresponding path program 1 times [2024-10-11 17:11:55,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:11:55,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455655984] [2024-10-11 17:11:55,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:11:55,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:11:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:11:55,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:11:55,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:11:55,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455655984] [2024-10-11 17:11:55,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455655984] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:11:55,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:11:55,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:11:55,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810063155] [2024-10-11 17:11:55,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:11:55,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:11:55,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:11:55,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:11:55,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:11:56,002 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 295 [2024-10-11 17:11:56,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 295 transitions, 597 flow. Second operand has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 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) [2024-10-11 17:11:56,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:11:56,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 295 [2024-10-11 17:11:56,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:11:56,374 INFO L124 PetriNetUnfolderBase]: 85/1251 cut-off events. [2024-10-11 17:11:56,378 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-11 17:11:56,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1435 conditions, 1251 events. 85/1251 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8287 event pairs, 72 based on Foata normal form. 205/1340 useless extension candidates. Maximal degree in co-relation 1250. Up to 178 conditions per place. [2024-10-11 17:11:56,412 INFO L140 encePairwiseOnDemand]: 263/295 looper letters, 23 selfloop transitions, 2 changer transitions 1/263 dead transitions. [2024-10-11 17:11:56,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 263 transitions, 583 flow [2024-10-11 17:11:56,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:11:56,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:11:56,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 776 transitions. [2024-10-11 17:11:56,436 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8768361581920904 [2024-10-11 17:11:56,439 INFO L175 Difference]: Start difference. First operand has 265 places, 295 transitions, 597 flow. Second operand 3 states and 776 transitions. [2024-10-11 17:11:56,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 263 transitions, 583 flow [2024-10-11 17:11:56,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 263 transitions, 583 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:11:56,452 INFO L231 Difference]: Finished difference. Result has 264 places, 262 transitions, 541 flow [2024-10-11 17:11:56,454 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=541, PETRI_PLACES=264, PETRI_TRANSITIONS=262} [2024-10-11 17:11:56,459 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, -1 predicate places. [2024-10-11 17:11:56,459 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 262 transitions, 541 flow [2024-10-11 17:11:56,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 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) [2024-10-11 17:11:56,461 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:11:56,461 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] [2024-10-11 17:11:56,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:11:56,462 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)] === [2024-10-11 17:11:56,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:11:56,464 INFO L85 PathProgramCache]: Analyzing trace with hash -330683134, now seen corresponding path program 1 times [2024-10-11 17:11:56,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:11:56,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238447844] [2024-10-11 17:11:56,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:11:56,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:11:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:11:56,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:11:56,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:11:56,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238447844] [2024-10-11 17:11:56,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238447844] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:11:56,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438932271] [2024-10-11 17:11:56,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:11:56,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:11:56,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:11:56,682 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:11:56,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 17:11:56,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:11:56,789 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 17:11:56,794 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:11:56,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:11:56,866 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:11:56,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:11:56,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438932271] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:11:56,922 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:11:56,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-11 17:11:56,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871226768] [2024-10-11 17:11:56,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:11:56,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 17:11:56,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:11:56,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 17:11:56,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-11 17:11:56,977 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 295 [2024-10-11 17:11:56,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 262 transitions, 541 flow. Second operand has 10 states, 10 states have (on average 238.8) internal successors, (2388), 10 states have internal predecessors, (2388), 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) [2024-10-11 17:11:56,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:11:56,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 295 [2024-10-11 17:11:56,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:11:57,287 INFO L124 PetriNetUnfolderBase]: 85/1257 cut-off events. [2024-10-11 17:11:57,287 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-11 17:11:57,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1460 conditions, 1257 events. 85/1257 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8330 event pairs, 72 based on Foata normal form. 2/1144 useless extension candidates. Maximal degree in co-relation 1424. Up to 178 conditions per place. [2024-10-11 17:11:57,297 INFO L140 encePairwiseOnDemand]: 289/295 looper letters, 27 selfloop transitions, 9 changer transitions 0/270 dead transitions. [2024-10-11 17:11:57,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 270 transitions, 631 flow [2024-10-11 17:11:57,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 17:11:57,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 17:11:57,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2171 transitions. [2024-10-11 17:11:57,303 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8177024482109227 [2024-10-11 17:11:57,303 INFO L175 Difference]: Start difference. First operand has 264 places, 262 transitions, 541 flow. Second operand 9 states and 2171 transitions. [2024-10-11 17:11:57,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 270 transitions, 631 flow [2024-10-11 17:11:57,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 270 transitions, 629 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:11:57,314 INFO L231 Difference]: Finished difference. Result has 273 places, 268 transitions, 589 flow [2024-10-11 17:11:57,315 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=539, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=589, PETRI_PLACES=273, PETRI_TRANSITIONS=268} [2024-10-11 17:11:57,316 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, 8 predicate places. [2024-10-11 17:11:57,317 INFO L471 AbstractCegarLoop]: Abstraction has has 273 places, 268 transitions, 589 flow [2024-10-11 17:11:57,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 238.8) internal successors, (2388), 10 states have internal predecessors, (2388), 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) [2024-10-11 17:11:57,318 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:11:57,319 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] [2024-10-11 17:11:57,337 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 17:11:57,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:11:57,520 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)] === [2024-10-11 17:11:57,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:11:57,521 INFO L85 PathProgramCache]: Analyzing trace with hash 471515042, now seen corresponding path program 2 times [2024-10-11 17:11:57,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:11:57,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967699220] [2024-10-11 17:11:57,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:11:57,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:11:57,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:11:57,728 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:11:57,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:11:57,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967699220] [2024-10-11 17:11:57,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967699220] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:11:57,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475535046] [2024-10-11 17:11:57,729 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:11:57,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:11:57,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:11:57,732 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:11:57,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 17:11:57,817 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 17:11:57,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:11:57,818 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-11 17:11:57,821 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:11:57,897 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 [2024-10-11 17:11:57,934 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 [2024-10-11 17:11:57,981 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:11:57,982 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 [2024-10-11 17:11:58,030 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:11:58,030 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 [2024-10-11 17:11:58,069 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-11 17:11:58,070 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:11:58,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475535046] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:11:58,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:11:58,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-10-11 17:11:58,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982332361] [2024-10-11 17:11:58,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:11:58,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 17:11:58,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:11:58,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 17:11:58,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-11 17:11:58,428 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 295 [2024-10-11 17:11:58,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 268 transitions, 589 flow. Second operand has 8 states, 8 states have (on average 188.125) internal successors, (1505), 8 states have internal predecessors, (1505), 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) [2024-10-11 17:11:58,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:11:58,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 295 [2024-10-11 17:11:58,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:11:59,181 INFO L124 PetriNetUnfolderBase]: 1305/4921 cut-off events. [2024-10-11 17:11:59,182 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-11 17:11:59,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7545 conditions, 4921 events. 1305/4921 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 43609 event pairs, 1025 based on Foata normal form. 1/4478 useless extension candidates. Maximal degree in co-relation 7480. Up to 2436 conditions per place. [2024-10-11 17:11:59,209 INFO L140 encePairwiseOnDemand]: 283/295 looper letters, 127 selfloop transitions, 11 changer transitions 2/331 dead transitions. [2024-10-11 17:11:59,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 331 transitions, 995 flow [2024-10-11 17:11:59,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 17:11:59,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 17:11:59,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1638 transitions. [2024-10-11 17:11:59,213 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6940677966101695 [2024-10-11 17:11:59,213 INFO L175 Difference]: Start difference. First operand has 273 places, 268 transitions, 589 flow. Second operand 8 states and 1638 transitions. [2024-10-11 17:11:59,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 331 transitions, 995 flow [2024-10-11 17:11:59,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 331 transitions, 989 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-11 17:11:59,222 INFO L231 Difference]: Finished difference. Result has 284 places, 275 transitions, 650 flow [2024-10-11 17:11:59,223 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=583, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=650, PETRI_PLACES=284, PETRI_TRANSITIONS=275} [2024-10-11 17:11:59,224 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, 19 predicate places. [2024-10-11 17:11:59,224 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 275 transitions, 650 flow [2024-10-11 17:11:59,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 188.125) internal successors, (1505), 8 states have internal predecessors, (1505), 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) [2024-10-11 17:11:59,225 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:11:59,226 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] [2024-10-11 17:11:59,244 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 17:11:59,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:11:59,431 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)] === [2024-10-11 17:11:59,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:11:59,431 INFO L85 PathProgramCache]: Analyzing trace with hash 802124064, now seen corresponding path program 1 times [2024-10-11 17:11:59,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:11:59,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206288324] [2024-10-11 17:11:59,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:11:59,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:11:59,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:11:59,715 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 17:11:59,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:11:59,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206288324] [2024-10-11 17:11:59,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206288324] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:11:59,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500449558] [2024-10-11 17:11:59,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:11:59,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:11:59,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:11:59,720 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:11:59,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 17:11:59,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:11:59,813 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 17:11:59,816 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:11:59,855 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 17:11:59,855 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:11:59,948 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 17:11:59,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500449558] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:11:59,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:11:59,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-11 17:11:59,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273932215] [2024-10-11 17:11:59,949 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:11:59,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 17:11:59,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:11:59,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 17:11:59,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-11 17:11:59,986 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 295 [2024-10-11 17:11:59,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 275 transitions, 650 flow. Second operand has 18 states, 18 states have (on average 238.94444444444446) internal successors, (4301), 18 states have internal predecessors, (4301), 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) [2024-10-11 17:11:59,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:11:59,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 295 [2024-10-11 17:11:59,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:12:00,378 INFO L124 PetriNetUnfolderBase]: 88/1266 cut-off events. [2024-10-11 17:12:00,378 INFO L125 PetriNetUnfolderBase]: For 30/34 co-relation queries the response was YES. [2024-10-11 17:12:00,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1572 conditions, 1266 events. 88/1266 cut-off events. For 30/34 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8500 event pairs, 74 based on Foata normal form. 4/1158 useless extension candidates. Maximal degree in co-relation 1430. Up to 175 conditions per place. [2024-10-11 17:12:00,388 INFO L140 encePairwiseOnDemand]: 289/295 looper letters, 31 selfloop transitions, 21 changer transitions 0/293 dead transitions. [2024-10-11 17:12:00,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 293 transitions, 842 flow [2024-10-11 17:12:00,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-11 17:12:00,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-11 17:12:00,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5033 transitions. [2024-10-11 17:12:00,398 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8124293785310734 [2024-10-11 17:12:00,398 INFO L175 Difference]: Start difference. First operand has 284 places, 275 transitions, 650 flow. Second operand 21 states and 5033 transitions. [2024-10-11 17:12:00,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 293 transitions, 842 flow [2024-10-11 17:12:00,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 293 transitions, 835 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:12:00,407 INFO L231 Difference]: Finished difference. Result has 307 places, 288 transitions, 773 flow [2024-10-11 17:12:00,408 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=643, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=773, PETRI_PLACES=307, PETRI_TRANSITIONS=288} [2024-10-11 17:12:00,409 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, 42 predicate places. [2024-10-11 17:12:00,410 INFO L471 AbstractCegarLoop]: Abstraction has has 307 places, 288 transitions, 773 flow [2024-10-11 17:12:00,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 238.94444444444446) internal successors, (4301), 18 states have internal predecessors, (4301), 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) [2024-10-11 17:12:00,413 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:12:00,413 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] [2024-10-11 17:12:00,431 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 17:12:00,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:12:00,615 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)] === [2024-10-11 17:12:00,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:12:00,615 INFO L85 PathProgramCache]: Analyzing trace with hash 979242592, now seen corresponding path program 2 times [2024-10-11 17:12:00,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:12:00,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887681786] [2024-10-11 17:12:00,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:12:00,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:12:00,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:12:01,020 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 17:12:01,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:12:01,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887681786] [2024-10-11 17:12:01,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887681786] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:12:01,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249238186] [2024-10-11 17:12:01,021 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:12:01,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:12:01,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:12:01,025 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:12:01,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 17:12:01,117 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 17:12:01,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:12:01,119 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 17:12:01,122 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:12:01,133 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 [2024-10-11 17:12:01,155 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 [2024-10-11 17:12:01,188 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:12:01,189 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 [2024-10-11 17:12:01,223 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:12:01,223 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 [2024-10-11 17:12:01,261 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-11 17:12:01,261 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:12:01,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249238186] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:12:01,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:12:01,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-11 17:12:01,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722139343] [2024-10-11 17:12:01,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:12:01,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:12:01,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:12:01,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:12:01,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-11 17:12:01,531 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 295 [2024-10-11 17:12:01,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 288 transitions, 773 flow. Second operand has 6 states, 6 states have (on average 190.66666666666666) internal successors, (1144), 6 states have internal predecessors, (1144), 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) [2024-10-11 17:12:01,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:12:01,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 295 [2024-10-11 17:12:01,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:12:02,582 INFO L124 PetriNetUnfolderBase]: 1363/5180 cut-off events. [2024-10-11 17:12:02,582 INFO L125 PetriNetUnfolderBase]: For 284/284 co-relation queries the response was YES. [2024-10-11 17:12:02,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8363 conditions, 5180 events. 1363/5180 cut-off events. For 284/284 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 46223 event pairs, 1033 based on Foata normal form. 29/4764 useless extension candidates. Maximal degree in co-relation 8214. Up to 2519 conditions per place. [2024-10-11 17:12:02,615 INFO L140 encePairwiseOnDemand]: 268/295 looper letters, 107 selfloop transitions, 92 changer transitions 0/404 dead transitions. [2024-10-11 17:12:02,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 404 transitions, 1425 flow [2024-10-11 17:12:02,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:12:02,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:12:02,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1322 transitions. [2024-10-11 17:12:02,619 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7468926553672316 [2024-10-11 17:12:02,619 INFO L175 Difference]: Start difference. First operand has 307 places, 288 transitions, 773 flow. Second operand 6 states and 1322 transitions. [2024-10-11 17:12:02,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 404 transitions, 1425 flow [2024-10-11 17:12:02,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 404 transitions, 1401 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-11 17:12:02,631 INFO L231 Difference]: Finished difference. Result has 311 places, 372 transitions, 1357 flow [2024-10-11 17:12:02,631 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=749, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1357, PETRI_PLACES=311, PETRI_TRANSITIONS=372} [2024-10-11 17:12:02,633 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, 46 predicate places. [2024-10-11 17:12:02,634 INFO L471 AbstractCegarLoop]: Abstraction has has 311 places, 372 transitions, 1357 flow [2024-10-11 17:12:02,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 190.66666666666666) internal successors, (1144), 6 states have internal predecessors, (1144), 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) [2024-10-11 17:12:02,635 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:12:02,635 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] [2024-10-11 17:12:02,654 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 17:12:02,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:12:02,837 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)] === [2024-10-11 17:12:02,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:12:02,837 INFO L85 PathProgramCache]: Analyzing trace with hash 291750212, now seen corresponding path program 1 times [2024-10-11 17:12:02,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:12:02,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639333006] [2024-10-11 17:12:02,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:12:02,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:12:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:12:03,183 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 17:12:03,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:12:03,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639333006] [2024-10-11 17:12:03,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639333006] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:12:03,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132455398] [2024-10-11 17:12:03,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:12:03,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:12:03,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:12:03,187 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:12:03,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 17:12:03,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:12:03,312 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 17:12:03,315 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:12:03,396 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 17:12:03,397 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:12:03,627 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 17:12:03,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132455398] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:12:03,628 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:12:03,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-11 17:12:03,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840248801] [2024-10-11 17:12:03,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:12:03,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 17:12:03,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:12:03,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 17:12:03,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-11 17:12:03,667 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 295 [2024-10-11 17:12:03,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 372 transitions, 1357 flow. Second operand has 23 states, 23 states have (on average 239.04347826086956) internal successors, (5498), 23 states have internal predecessors, (5498), 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) [2024-10-11 17:12:03,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:12:03,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 295 [2024-10-11 17:12:03,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:12:04,318 INFO L124 PetriNetUnfolderBase]: 258/1933 cut-off events. [2024-10-11 17:12:04,319 INFO L125 PetriNetUnfolderBase]: For 480/536 co-relation queries the response was YES. [2024-10-11 17:12:04,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3140 conditions, 1933 events. 258/1933 cut-off events. For 480/536 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 14519 event pairs, 72 based on Foata normal form. 3/1794 useless extension candidates. Maximal degree in co-relation 2911. Up to 232 conditions per place. [2024-10-11 17:12:04,335 INFO L140 encePairwiseOnDemand]: 289/295 looper letters, 34 selfloop transitions, 30 changer transitions 0/389 dead transitions. [2024-10-11 17:12:04,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 389 transitions, 1607 flow [2024-10-11 17:12:04,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-11 17:12:04,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-11 17:12:04,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 7177 transitions. [2024-10-11 17:12:04,351 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8109604519774011 [2024-10-11 17:12:04,351 INFO L175 Difference]: Start difference. First operand has 311 places, 372 transitions, 1357 flow. Second operand 30 states and 7177 transitions. [2024-10-11 17:12:04,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 389 transitions, 1607 flow [2024-10-11 17:12:04,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 389 transitions, 1589 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-10-11 17:12:04,365 INFO L231 Difference]: Finished difference. Result has 344 places, 382 transitions, 1491 flow [2024-10-11 17:12:04,366 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=1339, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1491, PETRI_PLACES=344, PETRI_TRANSITIONS=382} [2024-10-11 17:12:04,368 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, 79 predicate places. [2024-10-11 17:12:04,368 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 382 transitions, 1491 flow [2024-10-11 17:12:04,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 239.04347826086956) internal successors, (5498), 23 states have internal predecessors, (5498), 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) [2024-10-11 17:12:04,370 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:12:04,371 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] [2024-10-11 17:12:04,389 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-11 17:12:04,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:12:04,572 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)] === [2024-10-11 17:12:04,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:12:04,572 INFO L85 PathProgramCache]: Analyzing trace with hash -896090125, now seen corresponding path program 2 times [2024-10-11 17:12:04,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:12:04,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460219971] [2024-10-11 17:12:04,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:12:04,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:12:04,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:12:04,609 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 17:12:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 17:12:04,667 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 17:12:04,670 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 17:12:04,671 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-10-11 17:12:04,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-10-11 17:12:04,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-10-11 17:12:04,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-10-11 17:12:04,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-10-11 17:12:04,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-10-11 17:12:04,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-10-11 17:12:04,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-10-11 17:12:04,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-10-11 17:12:04,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-10-11 17:12:04,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-10-11 17:12:04,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-10-11 17:12:04,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-10-11 17:12:04,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-10-11 17:12:04,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-10-11 17:12:04,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-10-11 17:12:04,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-10-11 17:12:04,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-10-11 17:12:04,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 17:12:04,675 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1] [2024-10-11 17:12:04,680 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 17:12:04,680 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-11 17:12:04,772 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-11 17:12:04,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 370 places, 413 transitions, 842 flow [2024-10-11 17:12:04,871 INFO L124 PetriNetUnfolderBase]: 80/699 cut-off events. [2024-10-11 17:12:04,871 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2024-10-11 17:12:04,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 711 conditions, 699 events. 80/699 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3358 event pairs, 0 based on Foata normal form. 0/583 useless extension candidates. Maximal degree in co-relation 426. Up to 12 conditions per place. [2024-10-11 17:12:04,884 INFO L82 GeneralOperation]: Start removeDead. Operand has 370 places, 413 transitions, 842 flow [2024-10-11 17:12:04,896 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 370 places, 413 transitions, 842 flow [2024-10-11 17:12:04,901 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:12:04,901 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;@7b9adf5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:12:04,901 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-10-11 17:12:04,908 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:12:04,908 INFO L124 PetriNetUnfolderBase]: 8/74 cut-off events. [2024-10-11 17:12:04,908 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:12:04,908 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:12:04,909 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] [2024-10-11 17:12:04,909 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)] === [2024-10-11 17:12:04,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:12:04,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1929003184, now seen corresponding path program 1 times [2024-10-11 17:12:04,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:12:04,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346207510] [2024-10-11 17:12:04,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:12:04,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:12:04,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:12:04,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:12:04,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:12:04,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346207510] [2024-10-11 17:12:04,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346207510] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:12:04,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:12:04,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:12:04,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109231093] [2024-10-11 17:12:04,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:12:04,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:12:04,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:12:04,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:12:04,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:12:04,965 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 413 [2024-10-11 17:12:04,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 413 transitions, 842 flow. Second operand has 3 states, 3 states have (on average 335.3333333333333) internal successors, (1006), 3 states have internal predecessors, (1006), 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) [2024-10-11 17:12:04,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:12:04,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 413 [2024-10-11 17:12:04,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:12:06,923 INFO L124 PetriNetUnfolderBase]: 1580/11854 cut-off events. [2024-10-11 17:12:06,923 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2024-10-11 17:12:06,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14315 conditions, 11854 events. 1580/11854 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 142667 event pairs, 1464 based on Foata normal form. 2927/13876 useless extension candidates. Maximal degree in co-relation 12718. Up to 2408 conditions per place. [2024-10-11 17:12:07,006 INFO L140 encePairwiseOnDemand]: 368/413 looper letters, 33 selfloop transitions, 2 changer transitions 1/366 dead transitions. [2024-10-11 17:12:07,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 366 transitions, 818 flow [2024-10-11 17:12:07,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:12:07,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:12:07,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1081 transitions. [2024-10-11 17:12:07,009 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8724778046811945 [2024-10-11 17:12:07,009 INFO L175 Difference]: Start difference. First operand has 370 places, 413 transitions, 842 flow. Second operand 3 states and 1081 transitions. [2024-10-11 17:12:07,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 366 transitions, 818 flow [2024-10-11 17:12:07,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 366 transitions, 818 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:12:07,016 INFO L231 Difference]: Finished difference. Result has 367 places, 365 transitions, 756 flow [2024-10-11 17:12:07,019 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=756, PETRI_PLACES=367, PETRI_TRANSITIONS=365} [2024-10-11 17:12:07,020 INFO L277 CegarLoopForPetriNet]: 370 programPoint places, -3 predicate places. [2024-10-11 17:12:07,021 INFO L471 AbstractCegarLoop]: Abstraction has has 367 places, 365 transitions, 756 flow [2024-10-11 17:12:07,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 335.3333333333333) internal successors, (1006), 3 states have internal predecessors, (1006), 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) [2024-10-11 17:12:07,021 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:12:07,022 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] [2024-10-11 17:12:07,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 17:12:07,022 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)] === [2024-10-11 17:12:07,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:12:07,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1869159422, now seen corresponding path program 1 times [2024-10-11 17:12:07,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:12:07,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30256127] [2024-10-11 17:12:07,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:12:07,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:12:07,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:12:07,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:12:07,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:12:07,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30256127] [2024-10-11 17:12:07,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30256127] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:12:07,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691183656] [2024-10-11 17:12:07,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:12:07,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:12:07,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:12:07,079 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:12:07,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 17:12:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:12:07,167 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 17:12:07,168 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:12:07,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:12:07,190 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:12:07,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:12:07,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691183656] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:12:07,224 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:12:07,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-11 17:12:07,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970925572] [2024-10-11 17:12:07,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:12:07,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 17:12:07,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:12:07,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 17:12:07,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-11 17:12:07,252 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 413 [2024-10-11 17:12:07,255 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 365 transitions, 756 flow. Second operand has 10 states, 10 states have (on average 332.8) internal successors, (3328), 10 states have internal predecessors, (3328), 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) [2024-10-11 17:12:07,255 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:12:07,255 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 413 [2024-10-11 17:12:07,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:12:09,061 INFO L124 PetriNetUnfolderBase]: 1580/11860 cut-off events. [2024-10-11 17:12:09,061 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2024-10-11 17:12:09,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14340 conditions, 11860 events. 1580/11860 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 142561 event pairs, 1464 based on Foata normal form. 2/10958 useless extension candidates. Maximal degree in co-relation 14303. Up to 2408 conditions per place. [2024-10-11 17:12:09,139 INFO L140 encePairwiseOnDemand]: 407/413 looper letters, 37 selfloop transitions, 9 changer transitions 0/373 dead transitions. [2024-10-11 17:12:09,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 373 transitions, 866 flow [2024-10-11 17:12:09,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 17:12:09,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 17:12:09,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3027 transitions. [2024-10-11 17:12:09,146 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.814366424535916 [2024-10-11 17:12:09,146 INFO L175 Difference]: Start difference. First operand has 367 places, 365 transitions, 756 flow. Second operand 9 states and 3027 transitions. [2024-10-11 17:12:09,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 373 transitions, 866 flow [2024-10-11 17:12:09,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 373 transitions, 864 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:12:09,152 INFO L231 Difference]: Finished difference. Result has 376 places, 371 transitions, 804 flow [2024-10-11 17:12:09,152 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=754, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=804, PETRI_PLACES=376, PETRI_TRANSITIONS=371} [2024-10-11 17:12:09,153 INFO L277 CegarLoopForPetriNet]: 370 programPoint places, 6 predicate places. [2024-10-11 17:12:09,153 INFO L471 AbstractCegarLoop]: Abstraction has has 376 places, 371 transitions, 804 flow [2024-10-11 17:12:09,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 332.8) internal successors, (3328), 10 states have internal predecessors, (3328), 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) [2024-10-11 17:12:09,155 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:12:09,155 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] [2024-10-11 17:12:09,172 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-11 17:12:09,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-10-11 17:12:09,359 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)] === [2024-10-11 17:12:09,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:12:09,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1610852546, now seen corresponding path program 2 times [2024-10-11 17:12:09,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:12:09,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607189973] [2024-10-11 17:12:09,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:12:09,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:12:09,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:12:09,576 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:12:09,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:12:09,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607189973] [2024-10-11 17:12:09,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607189973] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:12:09,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521563489] [2024-10-11 17:12:09,578 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:12:09,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:12:09,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:12:09,580 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:12:09,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 17:12:09,677 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 17:12:09,677 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:12:09,678 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-11 17:12:09,680 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:12:09,722 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 [2024-10-11 17:12:09,747 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 [2024-10-11 17:12:09,779 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:12:09,780 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 [2024-10-11 17:12:09,820 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:12:09,821 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 [2024-10-11 17:12:09,856 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-11 17:12:09,857 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:12:09,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521563489] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:12:09,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:12:09,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-10-11 17:12:09,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137739149] [2024-10-11 17:12:09,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:12:09,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 17:12:09,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:12:09,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 17:12:09,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-11 17:12:10,329 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 413 [2024-10-11 17:12:10,331 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 371 transitions, 804 flow. Second operand has 8 states, 8 states have (on average 262.125) internal successors, (2097), 8 states have internal predecessors, (2097), 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) [2024-10-11 17:12:10,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:12:10,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 413 [2024-10-11 17:12:10,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:12:34,435 INFO L124 PetriNetUnfolderBase]: 77253/188802 cut-off events. [2024-10-11 17:12:34,435 INFO L125 PetriNetUnfolderBase]: For 296/296 co-relation queries the response was YES. [2024-10-11 17:12:35,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304538 conditions, 188802 events. 77253/188802 cut-off events. For 296/296 co-relation queries the response was YES. Maximal size of possible extension queue 3719. Compared 2541365 event pairs, 70336 based on Foata normal form. 1/174105 useless extension candidates. Maximal degree in co-relation 304472. Up to 110272 conditions per place. [2024-10-11 17:12:35,851 INFO L140 encePairwiseOnDemand]: 401/413 looper letters, 188 selfloop transitions, 11 changer transitions 0/463 dead transitions. [2024-10-11 17:12:35,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 463 transitions, 1386 flow [2024-10-11 17:12:35,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 17:12:35,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 17:12:35,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2289 transitions. [2024-10-11 17:12:35,857 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6927966101694916 [2024-10-11 17:12:35,857 INFO L175 Difference]: Start difference. First operand has 376 places, 371 transitions, 804 flow. Second operand 8 states and 2289 transitions. [2024-10-11 17:12:35,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 463 transitions, 1386 flow [2024-10-11 17:12:35,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 463 transitions, 1380 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-11 17:12:35,866 INFO L231 Difference]: Finished difference. Result has 387 places, 379 transitions, 869 flow [2024-10-11 17:12:35,867 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=798, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=869, PETRI_PLACES=387, PETRI_TRANSITIONS=379} [2024-10-11 17:12:35,868 INFO L277 CegarLoopForPetriNet]: 370 programPoint places, 17 predicate places. [2024-10-11 17:12:35,868 INFO L471 AbstractCegarLoop]: Abstraction has has 387 places, 379 transitions, 869 flow [2024-10-11 17:12:35,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 262.125) internal successors, (2097), 8 states have internal predecessors, (2097), 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) [2024-10-11 17:12:35,869 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:12:35,869 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] [2024-10-11 17:12:35,887 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-11 17:12:36,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:12:36,074 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)] === [2024-10-11 17:12:36,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:12:36,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1561714772, now seen corresponding path program 1 times [2024-10-11 17:12:36,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:12:36,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071405065] [2024-10-11 17:12:36,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:12:36,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:12:36,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:12:36,458 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 17:12:36,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:12:36,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071405065] [2024-10-11 17:12:36,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071405065] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:12:36,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175592774] [2024-10-11 17:12:36,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:12:36,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:12:36,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:12:36,461 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:12:36,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 17:12:36,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:12:36,598 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 17:12:36,599 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:12:36,646 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 17:12:36,646 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:12:36,738 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 17:12:36,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175592774] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:12:36,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:12:36,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-11 17:12:36,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660414729] [2024-10-11 17:12:36,739 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:12:36,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 17:12:36,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:12:36,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 17:12:36,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-11 17:12:36,770 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 413 [2024-10-11 17:12:36,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 379 transitions, 869 flow. Second operand has 18 states, 18 states have (on average 332.94444444444446) internal successors, (5993), 18 states have internal predecessors, (5993), 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) [2024-10-11 17:12:36,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:12:36,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 413 [2024-10-11 17:12:36,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:12:38,640 INFO L124 PetriNetUnfolderBase]: 1611/12112 cut-off events. [2024-10-11 17:12:38,640 INFO L125 PetriNetUnfolderBase]: For 115/119 co-relation queries the response was YES. [2024-10-11 17:12:38,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14964 conditions, 12112 events. 1611/12112 cut-off events. For 115/119 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 146952 event pairs, 1492 based on Foata normal form. 4/11183 useless extension candidates. Maximal degree in co-relation 14821. Up to 2431 conditions per place. [2024-10-11 17:12:38,722 INFO L140 encePairwiseOnDemand]: 407/413 looper letters, 41 selfloop transitions, 21 changer transitions 0/397 dead transitions. [2024-10-11 17:12:38,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 397 transitions, 1081 flow [2024-10-11 17:12:38,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-11 17:12:38,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-11 17:12:38,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 7017 transitions. [2024-10-11 17:12:38,736 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8090626080940851 [2024-10-11 17:12:38,736 INFO L175 Difference]: Start difference. First operand has 387 places, 379 transitions, 869 flow. Second operand 21 states and 7017 transitions. [2024-10-11 17:12:38,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 397 transitions, 1081 flow [2024-10-11 17:12:38,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 397 transitions, 1079 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:12:38,747 INFO L231 Difference]: Finished difference. Result has 411 places, 392 transitions, 997 flow [2024-10-11 17:12:38,748 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=867, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=997, PETRI_PLACES=411, PETRI_TRANSITIONS=392} [2024-10-11 17:12:38,749 INFO L277 CegarLoopForPetriNet]: 370 programPoint places, 41 predicate places. [2024-10-11 17:12:38,749 INFO L471 AbstractCegarLoop]: Abstraction has has 411 places, 392 transitions, 997 flow [2024-10-11 17:12:38,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 332.94444444444446) internal successors, (5993), 18 states have internal predecessors, (5993), 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) [2024-10-11 17:12:38,752 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:12:38,752 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] [2024-10-11 17:12:38,767 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-11 17:12:38,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-11 17:12:38,953 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)] === [2024-10-11 17:12:38,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:12:38,953 INFO L85 PathProgramCache]: Analyzing trace with hash 391133484, now seen corresponding path program 2 times [2024-10-11 17:12:38,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:12:38,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902828192] [2024-10-11 17:12:38,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:12:38,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:12:38,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:12:39,251 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 17:12:39,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:12:39,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902828192] [2024-10-11 17:12:39,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902828192] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:12:39,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776318342] [2024-10-11 17:12:39,252 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:12:39,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:12:39,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:12:39,254 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:12:39,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-11 17:12:39,355 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 17:12:39,355 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:12:39,356 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 17:12:39,358 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:12:39,364 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 [2024-10-11 17:12:39,383 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 [2024-10-11 17:12:39,409 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:12:39,409 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 [2024-10-11 17:12:39,579 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:12:39,579 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 [2024-10-11 17:12:39,611 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-11 17:12:39,611 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:12:39,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776318342] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:12:39,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:12:39,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-11 17:12:39,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89574515] [2024-10-11 17:12:39,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:12:39,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:12:39,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:12:39,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:12:39,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-11 17:12:39,925 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 413 [2024-10-11 17:12:39,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 392 transitions, 997 flow. Second operand has 6 states, 6 states have (on average 264.6666666666667) internal successors, (1588), 6 states have internal predecessors, (1588), 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) [2024-10-11 17:12:39,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:12:39,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 413 [2024-10-11 17:12:39,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand