./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_74-tricky_address1_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_74-tricky_address1_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9a7db49c8892594e32a30fa9165fc3ad1a94911917cd8b63757bb8f24f04b536 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:28:27,970 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:28:28,022 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:28:28,027 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:28:28,028 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:28:28,063 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:28:28,064 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:28:28,065 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:28:28,065 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:28:28,066 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:28:28,067 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:28:28,067 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:28:28,068 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:28:28,068 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:28:28,068 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:28:28,068 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:28:28,069 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:28:28,069 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:28:28,069 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:28:28,069 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:28:28,070 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:28:28,070 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:28:28,071 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:28:28,071 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:28:28,071 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:28:28,072 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:28:28,072 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:28:28,072 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:28:28,073 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:28:28,073 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:28:28,073 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:28:28,073 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:28:28,074 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:28:28,074 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:28:28,074 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:28:28,075 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:28:28,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:28:28,075 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:28:28,076 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:28:28,076 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:28:28,076 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:28:28,077 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a7db49c8892594e32a30fa9165fc3ad1a94911917cd8b63757bb8f24f04b536 [2024-10-24 15:28:28,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:28:28,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:28:28,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:28:28,385 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:28:28,385 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:28:28,387 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_74-tricky_address1_racefree.i [2024-10-24 15:28:29,918 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:28:30,215 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:28:30,217 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_74-tricky_address1_racefree.i [2024-10-24 15:28:30,242 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1e85ae89/38d948dcdaac41e9891635019c1245c7/FLAGc740d9574 [2024-10-24 15:28:30,259 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1e85ae89/38d948dcdaac41e9891635019c1245c7 [2024-10-24 15:28:30,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:28:30,265 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:28:30,267 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:28:30,268 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:28:30,273 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:28:30,274 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:28:30" (1/1) ... [2024-10-24 15:28:30,275 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d93d911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:30, skipping insertion in model container [2024-10-24 15:28:30,275 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:28:30" (1/1) ... [2024-10-24 15:28:30,331 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:28:30,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:28:30,938 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:28:30,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:28:31,051 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:28:31,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:31 WrapperNode [2024-10-24 15:28:31,052 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:28:31,053 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:28:31,053 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:28:31,053 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:28:31,060 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:31" (1/1) ... [2024-10-24 15:28:31,079 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:31" (1/1) ... [2024-10-24 15:28:31,131 INFO L138 Inliner]: procedures = 271, calls = 50, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 286 [2024-10-24 15:28:31,131 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:28:31,132 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:28:31,132 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:28:31,132 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:28:31,142 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:31" (1/1) ... [2024-10-24 15:28:31,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:31" (1/1) ... [2024-10-24 15:28:31,156 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:31" (1/1) ... [2024-10-24 15:28:31,156 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:31" (1/1) ... [2024-10-24 15:28:31,174 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:31" (1/1) ... [2024-10-24 15:28:31,182 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:31" (1/1) ... [2024-10-24 15:28:31,185 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:31" (1/1) ... [2024-10-24 15:28:31,187 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:31" (1/1) ... [2024-10-24 15:28:31,193 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:28:31,194 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:28:31,194 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:28:31,195 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:28:31,196 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:31" (1/1) ... [2024-10-24 15:28:31,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:28:31,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:31,235 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 15:28:31,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 15:28:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 15:28:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 15:28:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 15:28:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-24 15:28:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-24 15:28:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 15:28:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:28:31,300 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-24 15:28:31,300 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-24 15:28:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:28:31,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:28:31,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:28:31,302 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 15:28:31,491 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:28:31,493 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:28:32,090 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:28:32,090 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:28:32,149 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:28:32,150 INFO L314 CfgBuilder]: Removed 23 assume(true) statements. [2024-10-24 15:28:32,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:28:32 BoogieIcfgContainer [2024-10-24 15:28:32,151 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:28:32,153 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:28:32,153 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:28:32,156 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:28:32,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:28:30" (1/3) ... [2024-10-24 15:28:32,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d68e6eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:28:32, skipping insertion in model container [2024-10-24 15:28:32,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:31" (2/3) ... [2024-10-24 15:28:32,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d68e6eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:28:32, skipping insertion in model container [2024-10-24 15:28:32,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:28:32" (3/3) ... [2024-10-24 15:28:32,160 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_74-tricky_address1_racefree.i [2024-10-24 15:28:32,176 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:28:32,176 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-10-24 15:28:32,176 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:28:32,266 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-24 15:28:32,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 262 places, 292 transitions, 591 flow [2024-10-24 15:28:32,469 INFO L124 PetriNetUnfolderBase]: 48/421 cut-off events. [2024-10-24 15:28:32,470 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:28:32,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 421 events. 48/421 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1688 event pairs, 0 based on Foata normal form. 0/351 useless extension candidates. Maximal degree in co-relation 245. Up to 8 conditions per place. [2024-10-24 15:28:32,483 INFO L82 GeneralOperation]: Start removeDead. Operand has 262 places, 292 transitions, 591 flow [2024-10-24 15:28:32,494 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 262 places, 292 transitions, 591 flow [2024-10-24 15:28:32,512 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:28:32,521 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;@75d37a5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:28:32,521 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-10-24 15:28:32,538 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:28:32,539 INFO L124 PetriNetUnfolderBase]: 8/74 cut-off events. [2024-10-24 15:28:32,539 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:28:32,540 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:32,541 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] [2024-10-24 15:28:32,541 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)] === [2024-10-24 15:28:32,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:32,546 INFO L85 PathProgramCache]: Analyzing trace with hash 799831410, now seen corresponding path program 1 times [2024-10-24 15:28:32,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:32,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889975573] [2024-10-24 15:28:32,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:32,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:32,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:32,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:32,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:32,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889975573] [2024-10-24 15:28:32,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889975573] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:28:32,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:28:32,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:28:32,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826254780] [2024-10-24 15:28:32,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:28:32,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:28:32,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:32,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:28:32,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:28:32,984 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 292 [2024-10-24 15:28:32,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 292 transitions, 591 flow. Second operand has 3 states, 3 states have (on average 238.33333333333334) internal successors, (715), 3 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:28:32,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:32,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 292 [2024-10-24 15:28:32,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:33,421 INFO L124 PetriNetUnfolderBase]: 85/1248 cut-off events. [2024-10-24 15:28:33,422 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-24 15:28:33,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1432 conditions, 1248 events. 85/1248 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8295 event pairs, 72 based on Foata normal form. 206/1339 useless extension candidates. Maximal degree in co-relation 1247. Up to 178 conditions per place. [2024-10-24 15:28:33,439 INFO L140 encePairwiseOnDemand]: 260/292 looper letters, 23 selfloop transitions, 2 changer transitions 1/260 dead transitions. [2024-10-24 15:28:33,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 260 transitions, 577 flow [2024-10-24 15:28:33,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:28:33,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:28:33,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 767 transitions. [2024-10-24 15:28:33,463 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8755707762557078 [2024-10-24 15:28:33,465 INFO L175 Difference]: Start difference. First operand has 262 places, 292 transitions, 591 flow. Second operand 3 states and 767 transitions. [2024-10-24 15:28:33,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 260 transitions, 577 flow [2024-10-24 15:28:33,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 260 transitions, 577 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:28:33,477 INFO L231 Difference]: Finished difference. Result has 261 places, 259 transitions, 535 flow [2024-10-24 15:28:33,482 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=292, PETRI_DIFFERENCE_MINUEND_FLOW=525, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=535, PETRI_PLACES=261, PETRI_TRANSITIONS=259} [2024-10-24 15:28:33,487 INFO L277 CegarLoopForPetriNet]: 262 programPoint places, -1 predicate places. [2024-10-24 15:28:33,488 INFO L471 AbstractCegarLoop]: Abstraction has has 261 places, 259 transitions, 535 flow [2024-10-24 15:28:33,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 238.33333333333334) internal successors, (715), 3 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:28:33,489 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:33,489 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] [2024-10-24 15:28:33,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:28:33,490 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)] === [2024-10-24 15:28:33,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:33,490 INFO L85 PathProgramCache]: Analyzing trace with hash 23099031, now seen corresponding path program 1 times [2024-10-24 15:28:33,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:33,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965306244] [2024-10-24 15:28:33,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:33,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:33,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:33,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:33,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:33,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965306244] [2024-10-24 15:28:33,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965306244] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:33,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999424385] [2024-10-24 15:28:33,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:33,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:33,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:33,706 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:28:33,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 15:28:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:33,810 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 15:28:33,815 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:28:33,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:33,886 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:28:33,950 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:33,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999424385] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:28:33,951 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 15:28:33,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-24 15:28:33,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120809319] [2024-10-24 15:28:33,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 15:28:33,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 15:28:33,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:33,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 15:28:33,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-24 15:28:33,990 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 292 [2024-10-24 15:28:33,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 259 transitions, 535 flow. Second operand has 10 states, 10 states have (on average 235.8) internal successors, (2358), 10 states have internal predecessors, (2358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:28:33,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:33,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 292 [2024-10-24 15:28:33,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:34,346 INFO L124 PetriNetUnfolderBase]: 85/1254 cut-off events. [2024-10-24 15:28:34,346 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-24 15:28:34,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1457 conditions, 1254 events. 85/1254 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8320 event pairs, 72 based on Foata normal form. 2/1142 useless extension candidates. Maximal degree in co-relation 1421. Up to 178 conditions per place. [2024-10-24 15:28:34,355 INFO L140 encePairwiseOnDemand]: 286/292 looper letters, 27 selfloop transitions, 9 changer transitions 0/267 dead transitions. [2024-10-24 15:28:34,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 267 transitions, 625 flow [2024-10-24 15:28:34,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 15:28:34,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 15:28:34,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2144 transitions. [2024-10-24 15:28:34,361 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8158295281582952 [2024-10-24 15:28:34,361 INFO L175 Difference]: Start difference. First operand has 261 places, 259 transitions, 535 flow. Second operand 9 states and 2144 transitions. [2024-10-24 15:28:34,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 267 transitions, 625 flow [2024-10-24 15:28:34,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 267 transitions, 623 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:28:34,367 INFO L231 Difference]: Finished difference. Result has 270 places, 265 transitions, 583 flow [2024-10-24 15:28:34,368 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=292, PETRI_DIFFERENCE_MINUEND_FLOW=533, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=583, PETRI_PLACES=270, PETRI_TRANSITIONS=265} [2024-10-24 15:28:34,369 INFO L277 CegarLoopForPetriNet]: 262 programPoint places, 8 predicate places. [2024-10-24 15:28:34,369 INFO L471 AbstractCegarLoop]: Abstraction has has 270 places, 265 transitions, 583 flow [2024-10-24 15:28:34,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 235.8) internal successors, (2358), 10 states have internal predecessors, (2358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:28:34,371 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:34,371 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] [2024-10-24 15:28:34,390 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 15:28:34,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:34,577 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)] === [2024-10-24 15:28:34,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:34,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1097008265, now seen corresponding path program 2 times [2024-10-24 15:28:34,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:34,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654453235] [2024-10-24 15:28:34,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:34,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:34,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:34,776 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:34,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:34,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654453235] [2024-10-24 15:28:34,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654453235] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:34,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234355216] [2024-10-24 15:28:34,777 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:28:34,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:34,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:34,779 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:28:34,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 15:28:34,862 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 15:28:34,862 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:28:34,864 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-24 15:28:34,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:28:34,952 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 [2024-10-24 15:28:34,985 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 [2024-10-24 15:28:35,039 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:28:35,039 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 [2024-10-24 15:28:35,097 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:28:35,098 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 [2024-10-24 15:28:35,136 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-24 15:28:35,137 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:28:35,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234355216] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:28:35,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:28:35,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-10-24 15:28:35,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368451243] [2024-10-24 15:28:35,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:28:35,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 15:28:35,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:35,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 15:28:35,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-24 15:28:35,542 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 292 [2024-10-24 15:28:35,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 265 transitions, 583 flow. Second operand has 8 states, 8 states have (on average 185.125) internal successors, (1481), 8 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:28:35,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:35,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 292 [2024-10-24 15:28:35,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:36,520 INFO L124 PetriNetUnfolderBase]: 1305/4917 cut-off events. [2024-10-24 15:28:36,520 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-24 15:28:36,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7545 conditions, 4917 events. 1305/4917 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 43457 event pairs, 1025 based on Foata normal form. 1/4493 useless extension candidates. Maximal degree in co-relation 7480. Up to 2440 conditions per place. [2024-10-24 15:28:36,549 INFO L140 encePairwiseOnDemand]: 280/292 looper letters, 127 selfloop transitions, 11 changer transitions 2/328 dead transitions. [2024-10-24 15:28:36,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 328 transitions, 989 flow [2024-10-24 15:28:36,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 15:28:36,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 15:28:36,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1614 transitions. [2024-10-24 15:28:36,554 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6909246575342466 [2024-10-24 15:28:36,554 INFO L175 Difference]: Start difference. First operand has 270 places, 265 transitions, 583 flow. Second operand 8 states and 1614 transitions. [2024-10-24 15:28:36,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 328 transitions, 989 flow [2024-10-24 15:28:36,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 328 transitions, 983 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-24 15:28:36,563 INFO L231 Difference]: Finished difference. Result has 281 places, 272 transitions, 644 flow [2024-10-24 15:28:36,563 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=292, PETRI_DIFFERENCE_MINUEND_FLOW=577, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=644, PETRI_PLACES=281, PETRI_TRANSITIONS=272} [2024-10-24 15:28:36,565 INFO L277 CegarLoopForPetriNet]: 262 programPoint places, 19 predicate places. [2024-10-24 15:28:36,565 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 272 transitions, 644 flow [2024-10-24 15:28:36,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 185.125) internal successors, (1481), 8 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:28:36,567 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:36,567 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] [2024-10-24 15:28:36,586 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 15:28:36,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-24 15:28:36,772 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)] === [2024-10-24 15:28:36,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:36,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1578159233, now seen corresponding path program 1 times [2024-10-24 15:28:36,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:36,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923914376] [2024-10-24 15:28:36,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:36,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:36,987 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 15:28:36,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:36,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923914376] [2024-10-24 15:28:36,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923914376] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:36,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238441915] [2024-10-24 15:28:36,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:36,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:36,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:36,991 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:28:36,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 15:28:37,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:37,102 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 15:28:37,104 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:28:37,150 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 15:28:37,151 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:28:37,246 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 15:28:37,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238441915] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:28:37,247 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 15:28:37,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-24 15:28:37,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372157580] [2024-10-24 15:28:37,247 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 15:28:37,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 15:28:37,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:37,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 15:28:37,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-24 15:28:37,281 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 292 [2024-10-24 15:28:37,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 272 transitions, 644 flow. Second operand has 18 states, 18 states have (on average 235.94444444444446) internal successors, (4247), 18 states have internal predecessors, (4247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:28:37,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:37,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 292 [2024-10-24 15:28:37,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:37,706 INFO L124 PetriNetUnfolderBase]: 88/1263 cut-off events. [2024-10-24 15:28:37,707 INFO L125 PetriNetUnfolderBase]: For 30/34 co-relation queries the response was YES. [2024-10-24 15:28:37,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1569 conditions, 1263 events. 88/1263 cut-off events. For 30/34 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8441 event pairs, 74 based on Foata normal form. 4/1157 useless extension candidates. Maximal degree in co-relation 1427. Up to 175 conditions per place. [2024-10-24 15:28:37,717 INFO L140 encePairwiseOnDemand]: 286/292 looper letters, 31 selfloop transitions, 21 changer transitions 0/290 dead transitions. [2024-10-24 15:28:37,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 290 transitions, 836 flow [2024-10-24 15:28:37,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-24 15:28:37,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-24 15:28:37,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4970 transitions. [2024-10-24 15:28:37,728 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8105022831050228 [2024-10-24 15:28:37,728 INFO L175 Difference]: Start difference. First operand has 281 places, 272 transitions, 644 flow. Second operand 21 states and 4970 transitions. [2024-10-24 15:28:37,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 290 transitions, 836 flow [2024-10-24 15:28:37,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 290 transitions, 829 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:28:37,736 INFO L231 Difference]: Finished difference. Result has 304 places, 285 transitions, 767 flow [2024-10-24 15:28:37,736 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=292, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=767, PETRI_PLACES=304, PETRI_TRANSITIONS=285} [2024-10-24 15:28:37,738 INFO L277 CegarLoopForPetriNet]: 262 programPoint places, 42 predicate places. [2024-10-24 15:28:37,738 INFO L471 AbstractCegarLoop]: Abstraction has has 304 places, 285 transitions, 767 flow [2024-10-24 15:28:37,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 235.94444444444446) internal successors, (4247), 18 states have internal predecessors, (4247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:28:37,741 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:37,742 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] [2024-10-24 15:28:37,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-24 15:28:37,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:37,943 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)] === [2024-10-24 15:28:37,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:37,943 INFO L85 PathProgramCache]: Analyzing trace with hash 736519487, now seen corresponding path program 2 times [2024-10-24 15:28:37,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:37,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037176859] [2024-10-24 15:28:37,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:37,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:37,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:38,329 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 15:28:38,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:38,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037176859] [2024-10-24 15:28:38,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037176859] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:38,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514765225] [2024-10-24 15:28:38,331 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:28:38,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:38,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:38,335 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:28:38,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 15:28:38,427 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 15:28:38,427 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:28:38,429 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-24 15:28:38,434 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:28:38,443 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 [2024-10-24 15:28:38,463 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 [2024-10-24 15:28:38,493 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:28:38,493 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 [2024-10-24 15:28:38,536 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:28:38,537 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 [2024-10-24 15:28:38,571 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-24 15:28:38,571 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:28:38,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514765225] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:28:38,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:28:38,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-24 15:28:38,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178921791] [2024-10-24 15:28:38,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:28:38,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:28:38,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:38,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:28:38,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-24 15:28:38,873 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 292 [2024-10-24 15:28:38,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 285 transitions, 767 flow. Second operand has 6 states, 6 states have (on average 187.66666666666666) internal successors, (1126), 6 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:28:38,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:38,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 292 [2024-10-24 15:28:38,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:39,918 INFO L124 PetriNetUnfolderBase]: 1363/5123 cut-off events. [2024-10-24 15:28:39,918 INFO L125 PetriNetUnfolderBase]: For 281/281 co-relation queries the response was YES. [2024-10-24 15:28:39,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8312 conditions, 5123 events. 1363/5123 cut-off events. For 281/281 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 45373 event pairs, 1033 based on Foata normal form. 29/4725 useless extension candidates. Maximal degree in co-relation 8163. Up to 2525 conditions per place. [2024-10-24 15:28:39,951 INFO L140 encePairwiseOnDemand]: 265/292 looper letters, 107 selfloop transitions, 92 changer transitions 0/401 dead transitions. [2024-10-24 15:28:39,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 401 transitions, 1419 flow [2024-10-24 15:28:39,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:28:39,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:28:39,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1304 transitions. [2024-10-24 15:28:39,956 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7442922374429224 [2024-10-24 15:28:39,956 INFO L175 Difference]: Start difference. First operand has 304 places, 285 transitions, 767 flow. Second operand 6 states and 1304 transitions. [2024-10-24 15:28:39,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 401 transitions, 1419 flow [2024-10-24 15:28:39,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 401 transitions, 1395 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-24 15:28:39,974 INFO L231 Difference]: Finished difference. Result has 308 places, 369 transitions, 1351 flow [2024-10-24 15:28:39,977 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=292, PETRI_DIFFERENCE_MINUEND_FLOW=743, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1351, PETRI_PLACES=308, PETRI_TRANSITIONS=369} [2024-10-24 15:28:39,977 INFO L277 CegarLoopForPetriNet]: 262 programPoint places, 46 predicate places. [2024-10-24 15:28:39,978 INFO L471 AbstractCegarLoop]: Abstraction has has 308 places, 369 transitions, 1351 flow [2024-10-24 15:28:39,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 187.66666666666666) internal successors, (1126), 6 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:28:39,980 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:39,981 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] [2024-10-24 15:28:39,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 15:28:40,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:40,182 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)] === [2024-10-24 15:28:40,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:40,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1357268540, now seen corresponding path program 1 times [2024-10-24 15:28:40,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:40,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032623185] [2024-10-24 15:28:40,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:40,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:40,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:40,632 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 15:28:40,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:40,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032623185] [2024-10-24 15:28:40,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032623185] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:40,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218893817] [2024-10-24 15:28:40,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:40,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:40,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:40,635 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:28:40,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 15:28:40,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:40,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-24 15:28:40,755 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:28:40,844 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 15:28:40,844 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:28:41,054 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 15:28:41,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218893817] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:28:41,055 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 15:28:41,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-24 15:28:41,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180172544] [2024-10-24 15:28:41,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 15:28:41,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 15:28:41,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:41,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 15:28:41,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-24 15:28:41,095 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 292 [2024-10-24 15:28:41,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 369 transitions, 1351 flow. Second operand has 23 states, 23 states have (on average 236.04347826086956) internal successors, (5429), 23 states have internal predecessors, (5429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:28:41,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:41,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 292 [2024-10-24 15:28:41,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:41,756 INFO L124 PetriNetUnfolderBase]: 207/1876 cut-off events. [2024-10-24 15:28:41,756 INFO L125 PetriNetUnfolderBase]: For 459/523 co-relation queries the response was YES. [2024-10-24 15:28:41,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2975 conditions, 1876 events. 207/1876 cut-off events. For 459/523 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 14426 event pairs, 72 based on Foata normal form. 3/1739 useless extension candidates. Maximal degree in co-relation 2746. Up to 232 conditions per place. [2024-10-24 15:28:41,771 INFO L140 encePairwiseOnDemand]: 286/292 looper letters, 34 selfloop transitions, 30 changer transitions 0/386 dead transitions. [2024-10-24 15:28:41,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 386 transitions, 1601 flow [2024-10-24 15:28:41,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-24 15:28:41,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-24 15:28:41,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 7087 transitions. [2024-10-24 15:28:41,784 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8090182648401827 [2024-10-24 15:28:41,785 INFO L175 Difference]: Start difference. First operand has 308 places, 369 transitions, 1351 flow. Second operand 30 states and 7087 transitions. [2024-10-24 15:28:41,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 386 transitions, 1601 flow [2024-10-24 15:28:41,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 386 transitions, 1583 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-10-24 15:28:41,797 INFO L231 Difference]: Finished difference. Result has 341 places, 379 transitions, 1485 flow [2024-10-24 15:28:41,798 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=292, PETRI_DIFFERENCE_MINUEND_FLOW=1333, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1485, PETRI_PLACES=341, PETRI_TRANSITIONS=379} [2024-10-24 15:28:41,799 INFO L277 CegarLoopForPetriNet]: 262 programPoint places, 79 predicate places. [2024-10-24 15:28:41,799 INFO L471 AbstractCegarLoop]: Abstraction has has 341 places, 379 transitions, 1485 flow [2024-10-24 15:28:41,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 236.04347826086956) internal successors, (5429), 23 states have internal predecessors, (5429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:28:41,802 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:41,802 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] [2024-10-24 15:28:41,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-24 15:28:42,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:42,003 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)] === [2024-10-24 15:28:42,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:42,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1730208001, now seen corresponding path program 2 times [2024-10-24 15:28:42,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:42,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390336774] [2024-10-24 15:28:42,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:42,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:28:42,046 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 15:28:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:28:42,112 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 15:28:42,112 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 15:28:42,113 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-10-24 15:28:42,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-10-24 15:28:42,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-10-24 15:28:42,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-10-24 15:28:42,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-10-24 15:28:42,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-10-24 15:28:42,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-10-24 15:28:42,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-10-24 15:28:42,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-10-24 15:28:42,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-10-24 15:28:42,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-10-24 15:28:42,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-10-24 15:28:42,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-10-24 15:28:42,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-10-24 15:28:42,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-10-24 15:28:42,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-10-24 15:28:42,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-10-24 15:28:42,121 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-10-24 15:28:42,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 15:28:42,122 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1] [2024-10-24 15:28:42,128 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-24 15:28:42,128 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-24 15:28:42,179 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-24 15:28:42,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 364 places, 407 transitions, 830 flow [2024-10-24 15:28:42,312 INFO L124 PetriNetUnfolderBase]: 80/693 cut-off events. [2024-10-24 15:28:42,312 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2024-10-24 15:28:42,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 705 conditions, 693 events. 80/693 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3395 event pairs, 0 based on Foata normal form. 0/577 useless extension candidates. Maximal degree in co-relation 423. Up to 12 conditions per place. [2024-10-24 15:28:42,320 INFO L82 GeneralOperation]: Start removeDead. Operand has 364 places, 407 transitions, 830 flow [2024-10-24 15:28:42,326 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 364 places, 407 transitions, 830 flow [2024-10-24 15:28:42,328 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:28:42,328 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;@75d37a5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:28:42,328 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-10-24 15:28:42,332 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:28:42,332 INFO L124 PetriNetUnfolderBase]: 8/74 cut-off events. [2024-10-24 15:28:42,333 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:28:42,333 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:42,333 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] [2024-10-24 15:28:42,333 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)] === [2024-10-24 15:28:42,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:42,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1791768919, now seen corresponding path program 1 times [2024-10-24 15:28:42,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:42,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763729070] [2024-10-24 15:28:42,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:42,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:42,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:42,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:42,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763729070] [2024-10-24 15:28:42,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763729070] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:28:42,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:28:42,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:28:42,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873011786] [2024-10-24 15:28:42,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:28:42,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:28:42,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:42,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:28:42,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:28:42,388 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 328 out of 407 [2024-10-24 15:28:42,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 407 transitions, 830 flow. Second operand has 3 states, 3 states have (on average 329.3333333333333) internal successors, (988), 3 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:28:42,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:42,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 328 of 407 [2024-10-24 15:28:42,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:44,325 INFO L124 PetriNetUnfolderBase]: 1580/11575 cut-off events. [2024-10-24 15:28:44,325 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2024-10-24 15:28:44,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14036 conditions, 11575 events. 1580/11575 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 138793 event pairs, 1464 based on Foata normal form. 2929/13601 useless extension candidates. Maximal degree in co-relation 12445. Up to 2408 conditions per place. [2024-10-24 15:28:44,433 INFO L140 encePairwiseOnDemand]: 362/407 looper letters, 33 selfloop transitions, 2 changer transitions 1/360 dead transitions. [2024-10-24 15:28:44,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 360 transitions, 806 flow [2024-10-24 15:28:44,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:28:44,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:28:44,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1063 transitions. [2024-10-24 15:28:44,436 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8705978705978706 [2024-10-24 15:28:44,436 INFO L175 Difference]: Start difference. First operand has 364 places, 407 transitions, 830 flow. Second operand 3 states and 1063 transitions. [2024-10-24 15:28:44,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 360 transitions, 806 flow [2024-10-24 15:28:44,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 360 transitions, 806 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:28:44,443 INFO L231 Difference]: Finished difference. Result has 361 places, 359 transitions, 744 flow [2024-10-24 15:28:44,443 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=734, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=744, PETRI_PLACES=361, PETRI_TRANSITIONS=359} [2024-10-24 15:28:44,445 INFO L277 CegarLoopForPetriNet]: 364 programPoint places, -3 predicate places. [2024-10-24 15:28:44,446 INFO L471 AbstractCegarLoop]: Abstraction has has 361 places, 359 transitions, 744 flow [2024-10-24 15:28:44,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 329.3333333333333) internal successors, (988), 3 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:28:44,447 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:44,447 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] [2024-10-24 15:28:44,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 15:28:44,447 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)] === [2024-10-24 15:28:44,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:44,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1513825385, now seen corresponding path program 1 times [2024-10-24 15:28:44,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:44,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851596611] [2024-10-24 15:28:44,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:44,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:44,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:44,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:44,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851596611] [2024-10-24 15:28:44,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851596611] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:44,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014162175] [2024-10-24 15:28:44,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:44,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:44,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:44,520 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:28:44,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 15:28:44,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:44,711 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 15:28:44,712 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:28:44,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:44,753 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:28:44,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:44,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014162175] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:28:44,785 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 15:28:44,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-24 15:28:44,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584322384] [2024-10-24 15:28:44,785 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 15:28:44,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 15:28:44,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:44,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 15:28:44,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-24 15:28:44,811 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 407 [2024-10-24 15:28:44,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 359 transitions, 744 flow. Second operand has 10 states, 10 states have (on average 326.8) internal successors, (3268), 10 states have internal predecessors, (3268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:28:44,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:44,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 407 [2024-10-24 15:28:44,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:46,587 INFO L124 PetriNetUnfolderBase]: 1580/11581 cut-off events. [2024-10-24 15:28:46,588 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2024-10-24 15:28:46,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14061 conditions, 11581 events. 1580/11581 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 138780 event pairs, 1464 based on Foata normal form. 2/10681 useless extension candidates. Maximal degree in co-relation 14024. Up to 2408 conditions per place. [2024-10-24 15:28:46,692 INFO L140 encePairwiseOnDemand]: 401/407 looper letters, 37 selfloop transitions, 9 changer transitions 0/367 dead transitions. [2024-10-24 15:28:46,692 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 367 transitions, 854 flow [2024-10-24 15:28:46,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 15:28:46,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 15:28:46,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2973 transitions. [2024-10-24 15:28:46,699 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8116298116298116 [2024-10-24 15:28:46,699 INFO L175 Difference]: Start difference. First operand has 361 places, 359 transitions, 744 flow. Second operand 9 states and 2973 transitions. [2024-10-24 15:28:46,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 367 transitions, 854 flow [2024-10-24 15:28:46,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 367 transitions, 852 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:28:46,706 INFO L231 Difference]: Finished difference. Result has 370 places, 365 transitions, 792 flow [2024-10-24 15:28:46,707 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=742, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=792, PETRI_PLACES=370, PETRI_TRANSITIONS=365} [2024-10-24 15:28:46,708 INFO L277 CegarLoopForPetriNet]: 364 programPoint places, 6 predicate places. [2024-10-24 15:28:46,708 INFO L471 AbstractCegarLoop]: Abstraction has has 370 places, 365 transitions, 792 flow [2024-10-24 15:28:46,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 326.8) internal successors, (3268), 10 states have internal predecessors, (3268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:28:46,709 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:46,710 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] [2024-10-24 15:28:46,727 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-24 15:28:46,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:46,911 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)] === [2024-10-24 15:28:46,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:46,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1731727657, now seen corresponding path program 2 times [2024-10-24 15:28:46,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:46,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305298596] [2024-10-24 15:28:46,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:46,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:46,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:47,038 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:28:47,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:47,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305298596] [2024-10-24 15:28:47,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305298596] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:47,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017070471] [2024-10-24 15:28:47,039 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:28:47,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:47,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:47,041 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:28:47,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 15:28:47,133 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 15:28:47,133 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:28:47,134 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-24 15:28:47,136 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:28:47,185 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 [2024-10-24 15:28:47,209 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 [2024-10-24 15:28:47,243 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:28:47,244 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 [2024-10-24 15:28:47,284 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:28:47,285 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 [2024-10-24 15:28:47,323 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-24 15:28:47,323 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:28:47,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017070471] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:28:47,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:28:47,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-10-24 15:28:47,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336865691] [2024-10-24 15:28:47,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:28:47,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 15:28:47,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:47,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 15:28:47,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-24 15:28:47,758 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 407 [2024-10-24 15:28:47,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 365 transitions, 792 flow. Second operand has 8 states, 8 states have (on average 256.125) internal successors, (2049), 8 states have internal predecessors, (2049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:28:47,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:47,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 407 [2024-10-24 15:28:47,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:29:12,144 INFO L124 PetriNetUnfolderBase]: 77257/187710 cut-off events. [2024-10-24 15:29:12,145 INFO L125 PetriNetUnfolderBase]: For 288/312 co-relation queries the response was YES. [2024-10-24 15:29:12,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303604 conditions, 187710 events. 77257/187710 cut-off events. For 288/312 co-relation queries the response was YES. Maximal size of possible extension queue 3591. Compared 2510808 event pairs, 66469 based on Foata normal form. 1/173411 useless extension candidates. Maximal degree in co-relation 303538. Up to 110426 conditions per place. [2024-10-24 15:29:13,843 INFO L140 encePairwiseOnDemand]: 395/407 looper letters, 188 selfloop transitions, 11 changer transitions 0/457 dead transitions. [2024-10-24 15:29:13,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 457 transitions, 1374 flow [2024-10-24 15:29:13,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 15:29:13,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 15:29:13,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2241 transitions. [2024-10-24 15:29:13,851 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6882678132678133 [2024-10-24 15:29:13,851 INFO L175 Difference]: Start difference. First operand has 370 places, 365 transitions, 792 flow. Second operand 8 states and 2241 transitions. [2024-10-24 15:29:13,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 457 transitions, 1374 flow [2024-10-24 15:29:13,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 457 transitions, 1368 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-24 15:29:13,862 INFO L231 Difference]: Finished difference. Result has 381 places, 373 transitions, 857 flow [2024-10-24 15:29:13,863 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=786, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=857, PETRI_PLACES=381, PETRI_TRANSITIONS=373} [2024-10-24 15:29:13,863 INFO L277 CegarLoopForPetriNet]: 364 programPoint places, 17 predicate places. [2024-10-24 15:29:13,863 INFO L471 AbstractCegarLoop]: Abstraction has has 381 places, 373 transitions, 857 flow [2024-10-24 15:29:13,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 256.125) internal successors, (2049), 8 states have internal predecessors, (2049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:29:13,865 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:29:13,865 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] [2024-10-24 15:29:13,877 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-24 15:29:14,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:29:14,066 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)] === [2024-10-24 15:29:14,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:29:14,067 INFO L85 PathProgramCache]: Analyzing trace with hash 2060749358, now seen corresponding path program 1 times [2024-10-24 15:29:14,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:29:14,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787837175] [2024-10-24 15:29:14,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:29:14,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:29:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:29:14,209 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 15:29:14,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:29:14,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787837175] [2024-10-24 15:29:14,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787837175] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:29:14,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128453384] [2024-10-24 15:29:14,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:29:14,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:29:14,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:29:14,213 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:29:14,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-24 15:29:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:29:14,325 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 15:29:14,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:29:14,368 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 15:29:14,369 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:29:14,486 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 15:29:14,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1128453384] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:29:14,486 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 15:29:14,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-24 15:29:14,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884245421] [2024-10-24 15:29:14,487 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 15:29:14,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 15:29:14,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:29:14,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 15:29:14,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-24 15:29:14,523 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 407 [2024-10-24 15:29:14,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 373 transitions, 857 flow. Second operand has 18 states, 18 states have (on average 326.94444444444446) internal successors, (5885), 18 states have internal predecessors, (5885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:29:14,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:29:14,531 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 407 [2024-10-24 15:29:14,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:29:16,668 INFO L124 PetriNetUnfolderBase]: 1631/12143 cut-off events. [2024-10-24 15:29:16,669 INFO L125 PetriNetUnfolderBase]: For 115/119 co-relation queries the response was YES. [2024-10-24 15:29:16,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15038 conditions, 12143 events. 1631/12143 cut-off events. For 115/119 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 148282 event pairs, 1508 based on Foata normal form. 4/11191 useless extension candidates. Maximal degree in co-relation 14895. Up to 2474 conditions per place. [2024-10-24 15:29:16,745 INFO L140 encePairwiseOnDemand]: 401/407 looper letters, 41 selfloop transitions, 21 changer transitions 0/391 dead transitions. [2024-10-24 15:29:16,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 391 transitions, 1069 flow [2024-10-24 15:29:16,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-24 15:29:16,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-24 15:29:16,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6891 transitions. [2024-10-24 15:29:16,759 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8062478062478062 [2024-10-24 15:29:16,759 INFO L175 Difference]: Start difference. First operand has 381 places, 373 transitions, 857 flow. Second operand 21 states and 6891 transitions. [2024-10-24 15:29:16,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 391 transitions, 1069 flow [2024-10-24 15:29:16,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 391 transitions, 1067 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:29:16,768 INFO L231 Difference]: Finished difference. Result has 405 places, 386 transitions, 985 flow [2024-10-24 15:29:16,769 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=855, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=985, PETRI_PLACES=405, PETRI_TRANSITIONS=386} [2024-10-24 15:29:16,770 INFO L277 CegarLoopForPetriNet]: 364 programPoint places, 41 predicate places. [2024-10-24 15:29:16,770 INFO L471 AbstractCegarLoop]: Abstraction has has 405 places, 386 transitions, 985 flow [2024-10-24 15:29:16,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 326.94444444444446) internal successors, (5885), 18 states have internal predecessors, (5885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:29:16,773 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:29:16,773 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] [2024-10-24 15:29:16,790 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-24 15:29:16,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-24 15:29:16,974 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)] === [2024-10-24 15:29:16,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:29:16,974 INFO L85 PathProgramCache]: Analyzing trace with hash 894443694, now seen corresponding path program 2 times [2024-10-24 15:29:16,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:29:16,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515713368] [2024-10-24 15:29:16,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:29:16,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:29:16,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:29:17,263 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 15:29:17,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:29:17,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515713368] [2024-10-24 15:29:17,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515713368] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:29:17,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792640615] [2024-10-24 15:29:17,264 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:29:17,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:29:17,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:29:17,266 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:29:17,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-24 15:29:17,368 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 15:29:17,368 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:29:17,369 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-24 15:29:17,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:29:17,377 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 [2024-10-24 15:29:17,396 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 [2024-10-24 15:29:17,424 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:29:17,425 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 [2024-10-24 15:29:17,458 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:29:17,459 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 [2024-10-24 15:29:17,494 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-24 15:29:17,494 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:29:17,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792640615] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:29:17,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:29:17,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-24 15:29:17,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788857648] [2024-10-24 15:29:17,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:29:17,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:29:17,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:29:17,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:29:17,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-24 15:29:17,820 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 407 [2024-10-24 15:29:17,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 386 transitions, 985 flow. Second operand has 6 states, 6 states have (on average 258.6666666666667) internal successors, (1552), 6 states have internal predecessors, (1552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:29:17,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:29:17,822 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 407 [2024-10-24 15:29:17,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand