/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_90-arrayloop2_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 02:31:28,713 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 02:31:28,779 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-30 02:31:28,804 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 02:31:28,804 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 02:31:28,805 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 02:31:28,805 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 02:31:28,805 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 02:31:28,806 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 02:31:28,809 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 02:31:28,809 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 02:31:28,809 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 02:31:28,809 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 02:31:28,810 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 02:31:28,810 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 02:31:28,810 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 02:31:28,811 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 02:31:28,811 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 02:31:28,811 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 02:31:28,811 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 02:31:28,811 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 02:31:28,812 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 02:31:28,812 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 02:31:28,812 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 02:31:28,812 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 02:31:28,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 02:31:28,812 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 02:31:28,813 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 02:31:28,813 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 02:31:28,813 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 02:31:28,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 02:31:28,814 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 02:31:28,814 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 02:31:28,814 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2023-11-30 02:31:29,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 02:31:29,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 02:31:29,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 02:31:29,023 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 02:31:29,024 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 02:31:29,024 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2023-11-30 02:31:30,060 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 02:31:30,266 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 02:31:30,267 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2023-11-30 02:31:30,280 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1f1c7ac2/d1196494a7e8440b8ab3d6c3a5b1f7c0/FLAGc4a151018 [2023-11-30 02:31:30,289 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1f1c7ac2/d1196494a7e8440b8ab3d6c3a5b1f7c0 [2023-11-30 02:31:30,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 02:31:30,292 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 02:31:30,292 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 02:31:30,292 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 02:31:30,297 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 02:31:30,298 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:31:30" (1/1) ... [2023-11-30 02:31:30,298 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cd4f93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:31:30, skipping insertion in model container [2023-11-30 02:31:30,298 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:31:30" (1/1) ... [2023-11-30 02:31:30,348 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 02:31:30,628 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-30 02:31:30,629 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-30 02:31:30,631 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-30 02:31:30,632 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-30 02:31:30,677 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 02:31:30,699 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 02:31:30,733 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-30 02:31:30,734 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-30 02:31:30,734 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-30 02:31:30,734 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-30 02:31:30,764 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 02:31:30,811 INFO L206 MainTranslator]: Completed translation [2023-11-30 02:31:30,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:31:30 WrapperNode [2023-11-30 02:31:30,811 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 02:31:30,812 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 02:31:30,812 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 02:31:30,813 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 02:31:30,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:31:30" (1/1) ... [2023-11-30 02:31:30,843 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:31:30" (1/1) ... [2023-11-30 02:31:30,889 INFO L138 Inliner]: procedures = 279, calls = 73, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 495 [2023-11-30 02:31:30,889 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 02:31:30,890 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 02:31:30,890 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 02:31:30,890 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 02:31:30,898 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:31:30" (1/1) ... [2023-11-30 02:31:30,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:31:30" (1/1) ... [2023-11-30 02:31:30,909 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:31:30" (1/1) ... [2023-11-30 02:31:30,909 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:31:30" (1/1) ... [2023-11-30 02:31:30,940 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:31:30" (1/1) ... [2023-11-30 02:31:30,959 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:31:30" (1/1) ... [2023-11-30 02:31:30,962 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:31:30" (1/1) ... [2023-11-30 02:31:30,964 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:31:30" (1/1) ... [2023-11-30 02:31:30,967 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 02:31:30,968 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 02:31:30,968 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 02:31:30,968 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 02:31:30,969 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:31:30" (1/1) ... [2023-11-30 02:31:30,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 02:31:30,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 02:31:31,004 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-30 02:31:31,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-30 02:31:31,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 02:31:31,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-30 02:31:31,072 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-11-30 02:31:31,072 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-11-30 02:31:31,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 02:31:31,072 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-30 02:31:31,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 02:31:31,073 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-30 02:31:31,073 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-30 02:31:31,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 02:31:31,073 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-30 02:31:31,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-30 02:31:31,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 02:31:31,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-30 02:31:31,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 02:31:31,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 02:31:31,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 02:31:31,079 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-30 02:31:31,198 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 02:31:31,200 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 02:31:31,768 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 02:31:31,788 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 02:31:31,789 INFO L309 CfgBuilder]: Removed 30 assume(true) statements. [2023-11-30 02:31:31,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:31:31 BoogieIcfgContainer [2023-11-30 02:31:31,790 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 02:31:31,791 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 02:31:31,791 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 02:31:31,793 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 02:31:31,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:31:30" (1/3) ... [2023-11-30 02:31:31,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c47c0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:31:31, skipping insertion in model container [2023-11-30 02:31:31,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:31:30" (2/3) ... [2023-11-30 02:31:31,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c47c0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:31:31, skipping insertion in model container [2023-11-30 02:31:31,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:31:31" (3/3) ... [2023-11-30 02:31:31,795 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2023-11-30 02:31:31,806 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 02:31:31,806 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2023-11-30 02:31:31,807 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 02:31:31,893 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-30 02:31:31,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 479 places, 522 transitions, 1064 flow [2023-11-30 02:31:32,130 INFO L124 PetriNetUnfolderBase]: 80/820 cut-off events. [2023-11-30 02:31:32,130 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-30 02:31:32,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 837 conditions, 820 events. 80/820 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4215 event pairs, 0 based on Foata normal form. 0/695 useless extension candidates. Maximal degree in co-relation 420. Up to 8 conditions per place. [2023-11-30 02:31:32,146 INFO L82 GeneralOperation]: Start removeDead. Operand has 479 places, 522 transitions, 1064 flow [2023-11-30 02:31:32,159 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 479 places, 522 transitions, 1064 flow [2023-11-30 02:31:32,166 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 02:31:32,170 INFO L362 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, mHoare=true, 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;@75f2e97d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 02:31:32,171 INFO L363 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2023-11-30 02:31:32,175 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 02:31:32,175 INFO L124 PetriNetUnfolderBase]: 3/54 cut-off events. [2023-11-30 02:31:32,175 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 02:31:32,175 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 02:31:32,176 INFO L232 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] [2023-11-30 02:31:32,176 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-11-30 02:31:32,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 02:31:32,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1011142958, now seen corresponding path program 1 times [2023-11-30 02:31:32,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 02:31:32,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146227711] [2023-11-30 02:31:32,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:31:32,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 02:31:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 02:31:32,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 02:31:32,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 02:31:32,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146227711] [2023-11-30 02:31:32,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146227711] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 02:31:32,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 02:31:32,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 02:31:32,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667865158] [2023-11-30 02:31:32,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 02:31:32,700 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 02:31:32,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 02:31:32,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 02:31:32,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-30 02:31:32,731 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 292 out of 522 [2023-11-30 02:31:32,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 522 transitions, 1064 flow. Second operand has 6 states, 6 states have (on average 293.5) internal successors, (1761), 6 states have internal predecessors, (1761), 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) [2023-11-30 02:31:32,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 02:31:32,737 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 292 of 522 [2023-11-30 02:31:32,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 02:31:49,131 INFO L124 PetriNetUnfolderBase]: 71926/150147 cut-off events. [2023-11-30 02:31:49,132 INFO L125 PetriNetUnfolderBase]: For 1277/1352 co-relation queries the response was YES. [2023-11-30 02:31:49,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 257237 conditions, 150147 events. 71926/150147 cut-off events. For 1277/1352 co-relation queries the response was YES. Maximal size of possible extension queue 2915. Compared 1720501 event pairs, 65150 based on Foata normal form. 28437/158246 useless extension candidates. Maximal degree in co-relation 252341. Up to 106555 conditions per place. [2023-11-30 02:31:50,204 INFO L140 encePairwiseOnDemand]: 474/522 looper letters, 180 selfloop transitions, 10 changer transitions 0/478 dead transitions. [2023-11-30 02:31:50,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 478 transitions, 1356 flow [2023-11-30 02:31:50,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 02:31:50,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 02:31:50,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1980 transitions. [2023-11-30 02:31:50,220 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.632183908045977 [2023-11-30 02:31:50,221 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1980 transitions. [2023-11-30 02:31:50,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1980 transitions. [2023-11-30 02:31:50,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 02:31:50,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1980 transitions. [2023-11-30 02:31:50,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 330.0) internal successors, (1980), 6 states have internal predecessors, (1980), 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) [2023-11-30 02:31:50,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 522.0) internal successors, (3654), 7 states have internal predecessors, (3654), 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) [2023-11-30 02:31:50,243 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 522.0) internal successors, (3654), 7 states have internal predecessors, (3654), 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) [2023-11-30 02:31:50,246 INFO L307 CegarLoopForPetriNet]: 479 programPoint places, -3 predicate places. [2023-11-30 02:31:50,246 INFO L500 AbstractCegarLoop]: Abstraction has has 476 places, 478 transitions, 1356 flow [2023-11-30 02:31:50,248 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 293.5) internal successors, (1761), 6 states have internal predecessors, (1761), 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) [2023-11-30 02:31:50,248 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 02:31:50,248 INFO L232 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] [2023-11-30 02:31:50,248 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 02:31:50,249 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-11-30 02:31:50,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 02:31:50,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1522385457, now seen corresponding path program 1 times [2023-11-30 02:31:50,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 02:31:50,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586640424] [2023-11-30 02:31:50,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:31:50,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 02:31:50,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 02:31:50,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 02:31:50,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 02:31:50,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586640424] [2023-11-30 02:31:50,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586640424] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 02:31:50,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 02:31:50,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 02:31:50,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094211079] [2023-11-30 02:31:50,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 02:31:50,307 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 02:31:50,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 02:31:50,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 02:31:50,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 02:31:50,310 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 522 [2023-11-30 02:31:50,311 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 478 transitions, 1356 flow. Second operand has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 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) [2023-11-30 02:31:50,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 02:31:50,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 522 [2023-11-30 02:31:50,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 02:32:08,736 INFO L124 PetriNetUnfolderBase]: 75262/159298 cut-off events. [2023-11-30 02:32:08,736 INFO L125 PetriNetUnfolderBase]: For 18240/18662 co-relation queries the response was YES. [2023-11-30 02:32:09,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289673 conditions, 159298 events. 75262/159298 cut-off events. For 18240/18662 co-relation queries the response was YES. Maximal size of possible extension queue 3136. Compared 1862526 event pairs, 67973 based on Foata normal form. 0/137769 useless extension candidates. Maximal degree in co-relation 284006. Up to 112236 conditions per place. [2023-11-30 02:32:09,940 INFO L140 encePairwiseOnDemand]: 519/522 looper letters, 39 selfloop transitions, 2 changer transitions 0/485 dead transitions. [2023-11-30 02:32:09,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 485 transitions, 1452 flow [2023-11-30 02:32:09,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 02:32:09,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 02:32:09,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1392 transitions. [2023-11-30 02:32:09,946 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2023-11-30 02:32:09,946 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1392 transitions. [2023-11-30 02:32:09,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1392 transitions. [2023-11-30 02:32:09,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 02:32:09,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1392 transitions. [2023-11-30 02:32:09,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 464.0) internal successors, (1392), 3 states have internal predecessors, (1392), 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) [2023-11-30 02:32:09,952 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 522.0) internal successors, (2088), 4 states have internal predecessors, (2088), 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) [2023-11-30 02:32:09,952 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 522.0) internal successors, (2088), 4 states have internal predecessors, (2088), 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) [2023-11-30 02:32:09,953 INFO L307 CegarLoopForPetriNet]: 479 programPoint places, -1 predicate places. [2023-11-30 02:32:09,953 INFO L500 AbstractCegarLoop]: Abstraction has has 478 places, 485 transitions, 1452 flow [2023-11-30 02:32:09,954 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 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) [2023-11-30 02:32:09,954 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 02:32:09,954 INFO L232 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] [2023-11-30 02:32:09,954 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 02:32:09,954 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-11-30 02:32:09,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 02:32:09,955 INFO L85 PathProgramCache]: Analyzing trace with hash -2076741347, now seen corresponding path program 1 times [2023-11-30 02:32:09,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 02:32:09,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262526842] [2023-11-30 02:32:09,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:32:09,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 02:32:09,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 02:32:10,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 02:32:10,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 02:32:10,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262526842] [2023-11-30 02:32:10,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262526842] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 02:32:10,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 02:32:10,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 02:32:10,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125514459] [2023-11-30 02:32:10,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 02:32:10,226 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 02:32:10,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 02:32:10,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 02:32:10,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-30 02:32:10,228 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 292 out of 522 [2023-11-30 02:32:10,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 485 transitions, 1452 flow. Second operand has 6 states, 6 states have (on average 294.5) internal successors, (1767), 6 states have internal predecessors, (1767), 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) [2023-11-30 02:32:10,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 02:32:10,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 292 of 522 [2023-11-30 02:32:10,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 02:32:30,406 INFO L124 PetriNetUnfolderBase]: 75262/159294 cut-off events. [2023-11-30 02:32:30,407 INFO L125 PetriNetUnfolderBase]: For 42399/61245 co-relation queries the response was YES. [2023-11-30 02:32:30,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401917 conditions, 159294 events. 75262/159294 cut-off events. For 42399/61245 co-relation queries the response was YES. Maximal size of possible extension queue 3136. Compared 1862721 event pairs, 67973 based on Foata normal form. 0/137769 useless extension candidates. Maximal degree in co-relation 394364. Up to 112232 conditions per place. [2023-11-30 02:32:31,476 INFO L140 encePairwiseOnDemand]: 510/522 looper letters, 178 selfloop transitions, 10 changer transitions 0/483 dead transitions. [2023-11-30 02:32:31,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 483 transitions, 1820 flow [2023-11-30 02:32:31,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 02:32:31,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 02:32:31,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1942 transitions. [2023-11-30 02:32:31,492 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.620051085568327 [2023-11-30 02:32:31,492 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1942 transitions. [2023-11-30 02:32:31,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1942 transitions. [2023-11-30 02:32:31,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 02:32:31,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1942 transitions. [2023-11-30 02:32:31,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 323.6666666666667) internal successors, (1942), 6 states have internal predecessors, (1942), 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) [2023-11-30 02:32:31,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 522.0) internal successors, (3654), 7 states have internal predecessors, (3654), 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) [2023-11-30 02:32:31,500 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 522.0) internal successors, (3654), 7 states have internal predecessors, (3654), 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) [2023-11-30 02:32:31,501 INFO L307 CegarLoopForPetriNet]: 479 programPoint places, 2 predicate places. [2023-11-30 02:32:31,501 INFO L500 AbstractCegarLoop]: Abstraction has has 481 places, 483 transitions, 1820 flow [2023-11-30 02:32:31,502 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 294.5) internal successors, (1767), 6 states have internal predecessors, (1767), 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) [2023-11-30 02:32:31,502 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 02:32:31,502 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 02:32:31,502 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 02:32:31,502 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-11-30 02:32:31,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 02:32:31,503 INFO L85 PathProgramCache]: Analyzing trace with hash 857665580, now seen corresponding path program 1 times [2023-11-30 02:32:31,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 02:32:31,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576227510] [2023-11-30 02:32:31,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:32:31,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 02:32:31,521 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 02:32:31,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [219244392] [2023-11-30 02:32:31,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:32:31,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 02:32:31,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 02:32:31,524 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) [2023-11-30 02:32:31,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-30 02:32:31,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 02:32:31,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-30 02:32:31,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 02:32:31,731 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 [2023-11-30 02:32:31,751 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 [2023-11-30 02:32:31,775 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-30 02:32:31,775 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 [2023-11-30 02:32:31,804 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-30 02:32:31,804 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 [2023-11-30 02:32:31,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 02:32:31,821 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 02:32:31,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 02:32:31,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576227510] [2023-11-30 02:32:31,822 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 02:32:31,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219244392] [2023-11-30 02:32:31,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219244392] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 02:32:31,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 02:32:31,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-30 02:32:31,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425612584] [2023-11-30 02:32:31,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 02:32:31,822 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-30 02:32:31,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 02:32:31,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-30 02:32:31,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-30 02:32:31,825 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 522 [2023-11-30 02:32:31,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 483 transitions, 1820 flow. Second operand has 8 states, 8 states have (on average 298.625) internal successors, (2389), 8 states have internal predecessors, (2389), 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) [2023-11-30 02:32:31,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 02:32:31,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 522 [2023-11-30 02:32:31,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 02:32:54,237 INFO L124 PetriNetUnfolderBase]: 75262/159292 cut-off events. [2023-11-30 02:32:54,237 INFO L125 PetriNetUnfolderBase]: For 81400/118670 co-relation queries the response was YES. [2023-11-30 02:32:54,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 514153 conditions, 159292 events. 75262/159292 cut-off events. For 81400/118670 co-relation queries the response was YES. Maximal size of possible extension queue 3136. Compared 1863973 event pairs, 67973 based on Foata normal form. 0/137769 useless extension candidates. Maximal degree in co-relation 504722. Up to 112230 conditions per place. [2023-11-30 02:32:55,434 INFO L140 encePairwiseOnDemand]: 512/522 looper letters, 174 selfloop transitions, 9 changer transitions 0/482 dead transitions. [2023-11-30 02:32:55,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 482 transitions, 2180 flow [2023-11-30 02:32:55,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 02:32:55,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 02:32:55,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2848 transitions. [2023-11-30 02:32:55,468 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6062154108131119 [2023-11-30 02:32:55,468 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2848 transitions. [2023-11-30 02:32:55,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2848 transitions. [2023-11-30 02:32:55,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 02:32:55,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2848 transitions. [2023-11-30 02:32:55,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 316.44444444444446) internal successors, (2848), 9 states have internal predecessors, (2848), 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) [2023-11-30 02:32:55,478 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 522.0) internal successors, (5220), 10 states have internal predecessors, (5220), 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) [2023-11-30 02:32:55,478 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 522.0) internal successors, (5220), 10 states have internal predecessors, (5220), 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) [2023-11-30 02:32:55,479 INFO L307 CegarLoopForPetriNet]: 479 programPoint places, 9 predicate places. [2023-11-30 02:32:55,479 INFO L500 AbstractCegarLoop]: Abstraction has has 488 places, 482 transitions, 2180 flow [2023-11-30 02:32:55,480 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 298.625) internal successors, (2389), 8 states have internal predecessors, (2389), 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) [2023-11-30 02:32:55,480 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 02:32:55,480 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 02:32:55,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-30 02:32:55,696 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 02:32:55,696 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-11-30 02:32:55,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 02:32:55,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1870948814, now seen corresponding path program 1 times [2023-11-30 02:32:55,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 02:32:55,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327966598] [2023-11-30 02:32:55,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:32:55,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 02:32:55,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 02:32:55,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 02:32:55,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 02:32:55,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327966598] [2023-11-30 02:32:55,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327966598] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 02:32:55,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 02:32:55,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 02:32:55,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748334546] [2023-11-30 02:32:55,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 02:32:55,780 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 02:32:55,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 02:32:55,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 02:32:55,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 02:32:55,782 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 453 out of 522 [2023-11-30 02:32:55,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 488 places, 482 transitions, 2180 flow. Second operand has 3 states, 3 states have (on average 454.3333333333333) internal successors, (1363), 3 states have internal predecessors, (1363), 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) [2023-11-30 02:32:55,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 02:32:55,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 453 of 522 [2023-11-30 02:32:55,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 02:33:20,550 INFO L124 PetriNetUnfolderBase]: 75262/159482 cut-off events. [2023-11-30 02:33:20,553 INFO L125 PetriNetUnfolderBase]: For 160999/198665 co-relation queries the response was YES. [2023-11-30 02:33:21,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 532264 conditions, 159482 events. 75262/159482 cut-off events. For 160999/198665 co-relation queries the response was YES. Maximal size of possible extension queue 3137. Compared 1864114 event pairs, 67973 based on Foata normal form. 0/137949 useless extension candidates. Maximal degree in co-relation 521921. Up to 112324 conditions per place. [2023-11-30 02:33:21,956 INFO L140 encePairwiseOnDemand]: 519/522 looper letters, 35 selfloop transitions, 2 changer transitions 0/487 dead transitions. [2023-11-30 02:33:21,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 490 places, 487 transitions, 2268 flow [2023-11-30 02:33:21,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 02:33:21,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 02:33:21,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1395 transitions. [2023-11-30 02:33:21,978 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8908045977011494 [2023-11-30 02:33:21,978 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1395 transitions. [2023-11-30 02:33:21,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1395 transitions. [2023-11-30 02:33:21,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 02:33:21,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1395 transitions. [2023-11-30 02:33:21,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 465.0) internal successors, (1395), 3 states have internal predecessors, (1395), 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) [2023-11-30 02:33:21,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 522.0) internal successors, (2088), 4 states have internal predecessors, (2088), 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) [2023-11-30 02:33:21,983 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 522.0) internal successors, (2088), 4 states have internal predecessors, (2088), 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) [2023-11-30 02:33:21,983 INFO L307 CegarLoopForPetriNet]: 479 programPoint places, 11 predicate places. [2023-11-30 02:33:21,983 INFO L500 AbstractCegarLoop]: Abstraction has has 490 places, 487 transitions, 2268 flow [2023-11-30 02:33:21,984 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 454.3333333333333) internal successors, (1363), 3 states have internal predecessors, (1363), 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) [2023-11-30 02:33:21,984 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 02:33:21,984 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 02:33:21,984 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 02:33:21,984 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-11-30 02:33:21,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 02:33:21,984 INFO L85 PathProgramCache]: Analyzing trace with hash -962513731, now seen corresponding path program 1 times [2023-11-30 02:33:21,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 02:33:21,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098554202] [2023-11-30 02:33:21,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:33:21,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 02:33:22,030 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 02:33:22,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1999129605] [2023-11-30 02:33:22,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:33:22,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 02:33:22,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 02:33:22,064 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) [2023-11-30 02:33:22,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-30 02:33:22,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 02:33:22,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-30 02:33:22,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 02:33:22,250 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 [2023-11-30 02:33:22,257 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 21 treesize of output 20 [2023-11-30 02:33:22,274 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-30 02:33:22,274 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 30 treesize of output 32 [2023-11-30 02:33:22,294 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-30 02:33:22,294 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 39 treesize of output 44 [2023-11-30 02:33:22,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 02:33:22,311 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 02:33:22,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 02:33:22,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098554202] [2023-11-30 02:33:22,311 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 02:33:22,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999129605] [2023-11-30 02:33:22,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999129605] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 02:33:22,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 02:33:22,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 02:33:22,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098597780] [2023-11-30 02:33:22,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 02:33:22,312 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 02:33:22,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 02:33:22,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 02:33:22,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-30 02:33:22,315 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 300 out of 522 [2023-11-30 02:33:22,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 490 places, 487 transitions, 2268 flow. Second operand has 6 states, 6 states have (on average 305.5) internal successors, (1833), 6 states have internal predecessors, (1833), 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) [2023-11-30 02:33:22,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 02:33:22,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 300 of 522 [2023-11-30 02:33:22,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 02:33:52,358 INFO L124 PetriNetUnfolderBase]: 75262/159478 cut-off events. [2023-11-30 02:33:52,358 INFO L125 PetriNetUnfolderBase]: For 196154/252244 co-relation queries the response was YES. [2023-11-30 02:33:52,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 644580 conditions, 159478 events. 75262/159478 cut-off events. For 196154/252244 co-relation queries the response was YES. Maximal size of possible extension queue 3150. Compared 1863186 event pairs, 67973 based on Foata normal form. 0/137949 useless extension candidates. Maximal degree in co-relation 632279. Up to 112320 conditions per place. [2023-11-30 02:33:53,973 INFO L140 encePairwiseOnDemand]: 516/522 looper letters, 173 selfloop transitions, 5 changer transitions 0/486 dead transitions. [2023-11-30 02:33:53,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 494 places, 486 transitions, 2616 flow [2023-11-30 02:33:53,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 02:33:53,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 02:33:53,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1979 transitions. [2023-11-30 02:33:53,979 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6318646232439336 [2023-11-30 02:33:53,979 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1979 transitions. [2023-11-30 02:33:53,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1979 transitions. [2023-11-30 02:33:53,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 02:33:53,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1979 transitions. [2023-11-30 02:33:53,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 329.8333333333333) internal successors, (1979), 6 states have internal predecessors, (1979), 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) [2023-11-30 02:33:53,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 522.0) internal successors, (3654), 7 states have internal predecessors, (3654), 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) [2023-11-30 02:33:53,993 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 522.0) internal successors, (3654), 7 states have internal predecessors, (3654), 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) [2023-11-30 02:33:53,995 INFO L307 CegarLoopForPetriNet]: 479 programPoint places, 15 predicate places. [2023-11-30 02:33:53,996 INFO L500 AbstractCegarLoop]: Abstraction has has 494 places, 486 transitions, 2616 flow [2023-11-30 02:33:54,005 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 305.5) internal successors, (1833), 6 states have internal predecessors, (1833), 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) [2023-11-30 02:33:54,005 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 02:33:54,005 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 02:33:54,012 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-30 02:33:54,210 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-30 02:33:54,210 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-11-30 02:33:54,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 02:33:54,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1981414918, now seen corresponding path program 1 times [2023-11-30 02:33:54,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 02:33:54,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279043563] [2023-11-30 02:33:54,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:33:54,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 02:33:54,240 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 02:33:54,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [738433395] [2023-11-30 02:33:54,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:33:54,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 02:33:54,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 02:33:54,252 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) [2023-11-30 02:33:54,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-30 02:33:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 02:33:54,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-30 02:33:54,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 02:33:54,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-30 02:33:54,436 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 23 treesize of output 22 [2023-11-30 02:33:54,445 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-30 02:33:54,445 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 32 treesize of output 34 [2023-11-30 02:33:54,459 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-30 02:33:54,460 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 41 treesize of output 46 [2023-11-30 02:33:54,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 02:33:54,472 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 02:33:54,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 02:33:54,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279043563] [2023-11-30 02:33:54,473 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 02:33:54,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738433395] [2023-11-30 02:33:54,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738433395] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 02:33:54,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 02:33:54,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 02:33:54,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174437400] [2023-11-30 02:33:54,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 02:33:54,473 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 02:33:54,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 02:33:54,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 02:33:54,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-30 02:33:54,475 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 522 [2023-11-30 02:33:54,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 494 places, 486 transitions, 2616 flow. Second operand has 6 states, 6 states have (on average 305.5) internal successors, (1833), 6 states have internal predecessors, (1833), 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) [2023-11-30 02:33:54,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 02:33:54,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 522 [2023-11-30 02:33:54,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 02:34:23,815 INFO L124 PetriNetUnfolderBase]: 75262/159474 cut-off events. [2023-11-30 02:34:23,816 INFO L125 PetriNetUnfolderBase]: For 274055/348569 co-relation queries the response was YES. [2023-11-30 02:34:24,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 756892 conditions, 159474 events. 75262/159474 cut-off events. For 274055/348569 co-relation queries the response was YES. Maximal size of possible extension queue 3150. Compared 1863436 event pairs, 67973 based on Foata normal form. 0/137949 useless extension candidates. Maximal degree in co-relation 742637. Up to 112316 conditions per place. [2023-11-30 02:34:25,755 INFO L140 encePairwiseOnDemand]: 516/522 looper letters, 173 selfloop transitions, 5 changer transitions 0/485 dead transitions. [2023-11-30 02:34:25,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 485 transitions, 2962 flow [2023-11-30 02:34:25,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 02:34:25,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 02:34:25,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1973 transitions. [2023-11-30 02:34:25,758 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.629948914431673 [2023-11-30 02:34:25,758 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1973 transitions. [2023-11-30 02:34:25,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1973 transitions. [2023-11-30 02:34:25,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 02:34:25,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1973 transitions. [2023-11-30 02:34:25,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 328.8333333333333) internal successors, (1973), 6 states have internal predecessors, (1973), 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) [2023-11-30 02:34:25,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 522.0) internal successors, (3654), 7 states have internal predecessors, (3654), 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) [2023-11-30 02:34:25,764 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 522.0) internal successors, (3654), 7 states have internal predecessors, (3654), 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) [2023-11-30 02:34:25,764 INFO L307 CegarLoopForPetriNet]: 479 programPoint places, 19 predicate places. [2023-11-30 02:34:25,764 INFO L500 AbstractCegarLoop]: Abstraction has has 498 places, 485 transitions, 2962 flow [2023-11-30 02:34:25,765 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 305.5) internal successors, (1833), 6 states have internal predecessors, (1833), 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) [2023-11-30 02:34:25,765 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 02:34:25,765 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 02:34:25,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-30 02:34:25,972 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 02:34:25,973 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-11-30 02:34:25,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 02:34:25,973 INFO L85 PathProgramCache]: Analyzing trace with hash -114279400, now seen corresponding path program 1 times [2023-11-30 02:34:25,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 02:34:25,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373781574] [2023-11-30 02:34:25,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:34:25,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 02:34:25,999 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 02:34:26,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [744796143] [2023-11-30 02:34:26,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:34:26,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 02:34:26,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 02:34:26,017 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) [2023-11-30 02:34:26,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-30 02:34:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 02:34:26,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-30 02:34:26,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 02:34:26,200 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 [2023-11-30 02:34:26,209 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 21 treesize of output 20 [2023-11-30 02:34:26,223 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-30 02:34:26,224 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 30 treesize of output 32 [2023-11-30 02:34:26,243 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-30 02:34:26,243 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 39 treesize of output 44 [2023-11-30 02:34:26,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 02:34:26,256 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 02:34:26,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 02:34:26,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373781574] [2023-11-30 02:34:26,256 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 02:34:26,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744796143] [2023-11-30 02:34:26,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744796143] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 02:34:26,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 02:34:26,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 02:34:26,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768800755] [2023-11-30 02:34:26,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 02:34:26,257 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 02:34:26,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 02:34:26,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 02:34:26,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-30 02:34:26,261 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 522 [2023-11-30 02:34:26,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 485 transitions, 2962 flow. Second operand has 6 states, 6 states have (on average 304.5) internal successors, (1827), 6 states have internal predecessors, (1827), 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) [2023-11-30 02:34:26,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 02:34:26,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 522 [2023-11-30 02:34:26,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 02:34:58,150 INFO L124 PetriNetUnfolderBase]: 75262/159470 cut-off events. [2023-11-30 02:34:58,150 INFO L125 PetriNetUnfolderBase]: For 366759/459697 co-relation queries the response was YES. [2023-11-30 02:34:58,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 869204 conditions, 159470 events. 75262/159470 cut-off events. For 366759/459697 co-relation queries the response was YES. Maximal size of possible extension queue 3150. Compared 1862498 event pairs, 67973 based on Foata normal form. 0/137949 useless extension candidates. Maximal degree in co-relation 852995. Up to 112316 conditions per place. [2023-11-30 02:34:59,976 INFO L140 encePairwiseOnDemand]: 516/522 looper letters, 174 selfloop transitions, 5 changer transitions 0/484 dead transitions. [2023-11-30 02:34:59,976 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 502 places, 484 transitions, 3308 flow [2023-11-30 02:34:59,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 02:34:59,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 02:34:59,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1962 transitions. [2023-11-30 02:34:59,979 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6264367816091954 [2023-11-30 02:34:59,979 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1962 transitions. [2023-11-30 02:34:59,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1962 transitions. [2023-11-30 02:34:59,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 02:34:59,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1962 transitions. [2023-11-30 02:34:59,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 327.0) internal successors, (1962), 6 states have internal predecessors, (1962), 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) [2023-11-30 02:34:59,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 522.0) internal successors, (3654), 7 states have internal predecessors, (3654), 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) [2023-11-30 02:34:59,985 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 522.0) internal successors, (3654), 7 states have internal predecessors, (3654), 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) [2023-11-30 02:34:59,986 INFO L307 CegarLoopForPetriNet]: 479 programPoint places, 23 predicate places. [2023-11-30 02:34:59,986 INFO L500 AbstractCegarLoop]: Abstraction has has 502 places, 484 transitions, 3308 flow [2023-11-30 02:34:59,986 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 304.5) internal successors, (1827), 6 states have internal predecessors, (1827), 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) [2023-11-30 02:34:59,986 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 02:34:59,986 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 02:34:59,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-30 02:35:00,192 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 02:35:00,193 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-11-30 02:35:00,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 02:35:00,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1596826369, now seen corresponding path program 1 times [2023-11-30 02:35:00,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 02:35:00,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700477003] [2023-11-30 02:35:00,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:35:00,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 02:35:00,229 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 02:35:00,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [325168197] [2023-11-30 02:35:00,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:35:00,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 02:35:00,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 02:35:00,248 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) [2023-11-30 02:35:00,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-30 02:35:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 02:35:00,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-30 02:35:00,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 02:35:00,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-30 02:35:00,466 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 23 treesize of output 22 [2023-11-30 02:35:00,479 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-30 02:35:00,479 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 32 treesize of output 34 [2023-11-30 02:35:00,494 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-30 02:35:00,496 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 41 treesize of output 46 [2023-11-30 02:35:00,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 02:35:00,509 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 02:35:00,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 02:35:00,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700477003] [2023-11-30 02:35:00,510 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 02:35:00,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325168197] [2023-11-30 02:35:00,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325168197] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 02:35:00,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 02:35:00,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 02:35:00,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147857214] [2023-11-30 02:35:00,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 02:35:00,511 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 02:35:00,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 02:35:00,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 02:35:00,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-30 02:35:00,512 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 522 [2023-11-30 02:35:00,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 484 transitions, 3308 flow. Second operand has 6 states, 6 states have (on average 305.5) internal successors, (1833), 6 states have internal predecessors, (1833), 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) [2023-11-30 02:35:00,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 02:35:00,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 522 [2023-11-30 02:35:00,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 02:35:33,940 INFO L124 PetriNetUnfolderBase]: 75262/159466 cut-off events. [2023-11-30 02:35:33,941 INFO L125 PetriNetUnfolderBase]: For 474266/585628 co-relation queries the response was YES. [2023-11-30 02:35:34,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 981508 conditions, 159466 events. 75262/159466 cut-off events. For 474266/585628 co-relation queries the response was YES. Maximal size of possible extension queue 3150. Compared 1863615 event pairs, 67973 based on Foata normal form. 0/137949 useless extension candidates. Maximal degree in co-relation 963353. Up to 112312 conditions per place. [2023-11-30 02:35:35,742 INFO L140 encePairwiseOnDemand]: 516/522 looper letters, 173 selfloop transitions, 5 changer transitions 0/483 dead transitions. [2023-11-30 02:35:35,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 506 places, 483 transitions, 3650 flow [2023-11-30 02:35:35,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 02:35:35,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 02:35:35,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1961 transitions. [2023-11-30 02:35:35,746 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.626117496807152 [2023-11-30 02:35:35,746 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1961 transitions. [2023-11-30 02:35:35,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1961 transitions. [2023-11-30 02:35:35,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 02:35:35,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1961 transitions. [2023-11-30 02:35:35,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 326.8333333333333) internal successors, (1961), 6 states have internal predecessors, (1961), 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) [2023-11-30 02:35:35,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 522.0) internal successors, (3654), 7 states have internal predecessors, (3654), 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) [2023-11-30 02:35:35,771 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 522.0) internal successors, (3654), 7 states have internal predecessors, (3654), 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) [2023-11-30 02:35:35,784 INFO L307 CegarLoopForPetriNet]: 479 programPoint places, 27 predicate places. [2023-11-30 02:35:35,784 INFO L500 AbstractCegarLoop]: Abstraction has has 506 places, 483 transitions, 3650 flow [2023-11-30 02:35:35,784 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 305.5) internal successors, (1833), 6 states have internal predecessors, (1833), 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) [2023-11-30 02:35:35,784 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 02:35:35,785 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 02:35:35,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-30 02:35:35,991 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 02:35:35,991 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-11-30 02:35:35,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 02:35:35,991 INFO L85 PathProgramCache]: Analyzing trace with hash 730558240, now seen corresponding path program 1 times [2023-11-30 02:35:35,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 02:35:35,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846007148] [2023-11-30 02:35:35,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:35:35,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 02:35:36,012 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 02:35:36,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [70283751] [2023-11-30 02:35:36,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:35:36,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 02:35:36,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 02:35:36,036 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) [2023-11-30 02:35:36,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-30 02:35:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 02:35:36,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-30 02:35:36,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 02:35:36,282 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 [2023-11-30 02:35:36,300 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 21 treesize of output 20 [2023-11-30 02:35:36,323 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-30 02:35:36,323 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 30 treesize of output 32 [2023-11-30 02:35:36,340 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-30 02:35:36,340 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 39 treesize of output 44 [2023-11-30 02:35:36,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 02:35:36,353 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 02:35:36,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 02:35:36,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846007148] [2023-11-30 02:35:36,353 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 02:35:36,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70283751] [2023-11-30 02:35:36,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70283751] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 02:35:36,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 02:35:36,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 02:35:36,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538458758] [2023-11-30 02:35:36,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 02:35:36,354 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 02:35:36,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 02:35:36,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 02:35:36,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-30 02:35:36,356 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 522 [2023-11-30 02:35:36,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 506 places, 483 transitions, 3650 flow. Second operand has 6 states, 6 states have (on average 307.3333333333333) internal successors, (1844), 6 states have internal predecessors, (1844), 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) [2023-11-30 02:35:36,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 02:35:36,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 522 [2023-11-30 02:35:36,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 02:36:10,659 INFO L124 PetriNetUnfolderBase]: 75262/159462 cut-off events. [2023-11-30 02:36:10,660 INFO L125 PetriNetUnfolderBase]: For 596532/726318 co-relation queries the response was YES. [2023-11-30 02:36:11,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1093800 conditions, 159462 events. 75262/159462 cut-off events. For 596532/726318 co-relation queries the response was YES. Maximal size of possible extension queue 3150. Compared 1863880 event pairs, 67973 based on Foata normal form. 0/137949 useless extension candidates. Maximal degree in co-relation 1073711. Up to 112308 conditions per place. [2023-11-30 02:36:12,893 INFO L140 encePairwiseOnDemand]: 516/522 looper letters, 171 selfloop transitions, 5 changer transitions 0/482 dead transitions. [2023-11-30 02:36:12,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 510 places, 482 transitions, 3986 flow [2023-11-30 02:36:12,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-30 02:36:12,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-30 02:36:12,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1965 transitions. [2023-11-30 02:36:12,896 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6273946360153256 [2023-11-30 02:36:12,896 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1965 transitions. [2023-11-30 02:36:12,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1965 transitions. [2023-11-30 02:36:12,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 02:36:12,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1965 transitions. [2023-11-30 02:36:12,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 327.5) internal successors, (1965), 6 states have internal predecessors, (1965), 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) [2023-11-30 02:36:12,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 522.0) internal successors, (3654), 7 states have internal predecessors, (3654), 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) [2023-11-30 02:36:12,916 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 522.0) internal successors, (3654), 7 states have internal predecessors, (3654), 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) [2023-11-30 02:36:12,931 INFO L307 CegarLoopForPetriNet]: 479 programPoint places, 31 predicate places. [2023-11-30 02:36:12,932 INFO L500 AbstractCegarLoop]: Abstraction has has 510 places, 482 transitions, 3986 flow [2023-11-30 02:36:12,932 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 307.3333333333333) internal successors, (1844), 6 states have internal predecessors, (1844), 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) [2023-11-30 02:36:12,932 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 02:36:12,932 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 02:36:12,949 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-30 02:36:13,138 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 02:36:13,139 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-11-30 02:36:13,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 02:36:13,139 INFO L85 PathProgramCache]: Analyzing trace with hash -199584777, now seen corresponding path program 1 times [2023-11-30 02:36:13,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 02:36:13,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717498082] [2023-11-30 02:36:13,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:36:13,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 02:36:13,199 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-30 02:36:13,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1972788760] [2023-11-30 02:36:13,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 02:36:13,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-30 02:36:13,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 02:36:13,216 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) [2023-11-30 02:36:13,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-30 02:36:13,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 02:36:13,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-30 02:36:13,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-30 02:36:13,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-30 02:36:13,534 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-30 02:36:13,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 02:36:13,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717498082] [2023-11-30 02:36:13,534 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-30 02:36:13,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972788760] [2023-11-30 02:36:13,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972788760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 02:36:13,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 02:36:13,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 02:36:13,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281530763] [2023-11-30 02:36:13,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 02:36:13,535 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 02:36:13,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 02:36:13,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 02:36:13,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 02:36:13,536 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 453 out of 522 [2023-11-30 02:36:13,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 510 places, 482 transitions, 3986 flow. Second operand has 3 states, 3 states have (on average 454.3333333333333) internal successors, (1363), 3 states have internal predecessors, (1363), 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) [2023-11-30 02:36:13,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 02:36:13,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 453 of 522 [2023-11-30 02:36:13,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand