/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 -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-29 20:06:28,381 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 20:06:28,429 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 [2023-11-29 20:06:28,449 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 20:06:28,449 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 20:06:28,450 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 20:06:28,450 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 20:06:28,450 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 20:06:28,451 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 20:06:28,451 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 20:06:28,451 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 20:06:28,452 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 20:06:28,452 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 20:06:28,452 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 20:06:28,453 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 20:06:28,453 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 20:06:28,453 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 20:06:28,454 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 20:06:28,454 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 20:06:28,454 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 20:06:28,455 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 20:06:28,455 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 20:06:28,455 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 20:06:28,456 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-29 20:06:28,456 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 20:06:28,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 20:06:28,457 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 20:06:28,457 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 20:06:28,457 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 20:06:28,457 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 20:06:28,458 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 20:06:28,458 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 20:06:28,458 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 20:06:28,458 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-11-29 20:06:28,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 20:06:28,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 20:06:28,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 20:06:28,642 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 20:06:28,643 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 20:06:28,644 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2023-11-29 20:06:29,751 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 20:06:30,036 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 20:06:30,037 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2023-11-29 20:06:30,051 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9364cbfb5/81f5a78f2f53497a9dcbede5d206da0c/FLAG7005ce090 [2023-11-29 20:06:30,061 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9364cbfb5/81f5a78f2f53497a9dcbede5d206da0c [2023-11-29 20:06:30,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 20:06:30,064 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-29 20:06:30,065 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 20:06:30,065 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 20:06:30,069 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 20:06:30,070 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:06:30" (1/1) ... [2023-11-29 20:06:30,070 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a5f3548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:06:30, skipping insertion in model container [2023-11-29 20:06:30,071 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:06:30" (1/1) ... [2023-11-29 20:06:30,127 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 20:06:30,516 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i[47038,47051] [2023-11-29 20:06:30,533 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-29 20:06:30,533 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-29 20:06:30,534 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-29 20:06:30,535 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-29 20:06:30,564 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 20:06:30,591 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 20:06:30,627 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i[47038,47051] [2023-11-29 20:06:30,640 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-29 20:06:30,640 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-29 20:06:30,641 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-29 20:06:30,642 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-29 20:06:30,660 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 20:06:30,714 INFO L206 MainTranslator]: Completed translation [2023-11-29 20:06:30,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:06:30 WrapperNode [2023-11-29 20:06:30,716 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 20:06:30,717 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 20:06:30,717 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 20:06:30,717 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 20:06:30,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:06:30" (1/1) ... [2023-11-29 20:06:30,747 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:06:30" (1/1) ... [2023-11-29 20:06:30,780 INFO L138 Inliner]: procedures = 278, calls = 49, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 199 [2023-11-29 20:06:30,780 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 20:06:30,781 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 20:06:30,781 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 20:06:30,781 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 20:06:30,789 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:06:30" (1/1) ... [2023-11-29 20:06:30,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:06:30" (1/1) ... [2023-11-29 20:06:30,795 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:06:30" (1/1) ... [2023-11-29 20:06:30,795 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:06:30" (1/1) ... [2023-11-29 20:06:30,804 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:06:30" (1/1) ... [2023-11-29 20:06:30,808 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:06:30" (1/1) ... [2023-11-29 20:06:30,811 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:06:30" (1/1) ... [2023-11-29 20:06:30,812 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:06:30" (1/1) ... [2023-11-29 20:06:30,815 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 20:06:30,816 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 20:06:30,816 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 20:06:30,816 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 20:06:30,817 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:06:30" (1/1) ... [2023-11-29 20:06:30,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 20:06:30,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 20:06:30,844 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) [2023-11-29 20:06:30,861 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 [2023-11-29 20:06:30,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 20:06:30,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-29 20:06:30,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 20:06:30,877 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 20:06:30,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 20:06:30,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 20:06:30,877 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 20:06:30,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 20:06:30,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 20:06:30,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-29 20:06:30,878 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-29 20:06:30,878 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-29 20:06:30,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 20:06:30,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 20:06:30,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 20:06:30,880 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 20:06:31,013 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 20:06:31,015 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 20:06:31,279 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 20:06:31,316 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 20:06:31,316 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-29 20:06:31,317 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:06:31 BoogieIcfgContainer [2023-11-29 20:06:31,317 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 20:06:31,319 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 20:06:31,319 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 20:06:31,327 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 20:06:31,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:06:30" (1/3) ... [2023-11-29 20:06:31,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a4da440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:06:31, skipping insertion in model container [2023-11-29 20:06:31,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:06:30" (2/3) ... [2023-11-29 20:06:31,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a4da440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:06:31, skipping insertion in model container [2023-11-29 20:06:31,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:06:31" (3/3) ... [2023-11-29 20:06:31,330 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_91-arrayloop2_racefree.i [2023-11-29 20:06:31,343 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 20:06:31,343 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 20:06:31,343 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 20:06:31,405 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-29 20:06:31,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 183 places, 204 transitions, 415 flow [2023-11-29 20:06:31,534 INFO L124 PetriNetUnfolderBase]: 26/223 cut-off events. [2023-11-29 20:06:31,534 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 20:06:31,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 223 events. 26/223 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 581 event pairs, 0 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 119. Up to 4 conditions per place. [2023-11-29 20:06:31,543 INFO L82 GeneralOperation]: Start removeDead. Operand has 183 places, 204 transitions, 415 flow [2023-11-29 20:06:31,553 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 179 places, 199 transitions, 402 flow [2023-11-29 20:06:31,569 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 20:06:31,578 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;@6c1b40df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 20:06:31,579 INFO L363 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-29 20:06:31,610 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 20:06:31,610 INFO L124 PetriNetUnfolderBase]: 7/96 cut-off events. [2023-11-29 20:06:31,610 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 20:06:31,610 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:06:31,611 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:06:31,611 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 20:06:31,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:06:31,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1946672590, now seen corresponding path program 1 times [2023-11-29 20:06:31,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:06:31,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383848250] [2023-11-29 20:06:31,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:06:31,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:06:31,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:06:31,953 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 20:06:31,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:06:31,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383848250] [2023-11-29 20:06:31,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383848250] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:06:31,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:06:31,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 20:06:31,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105605664] [2023-11-29 20:06:31,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:06:31,964 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 20:06:31,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:06:31,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 20:06:31,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 20:06:31,995 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 204 [2023-11-29 20:06:32,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 199 transitions, 402 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 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) [2023-11-29 20:06:32,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:06:32,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 204 [2023-11-29 20:06:32,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:06:32,109 INFO L124 PetriNetUnfolderBase]: 14/272 cut-off events. [2023-11-29 20:06:32,109 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 20:06:32,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 272 events. 14/272 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 832 event pairs, 8 based on Foata normal form. 44/303 useless extension candidates. Maximal degree in co-relation 163. Up to 39 conditions per place. [2023-11-29 20:06:32,114 INFO L140 encePairwiseOnDemand]: 183/204 looper letters, 26 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2023-11-29 20:06:32,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 187 transitions, 434 flow [2023-11-29 20:06:32,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 20:06:32,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 20:06:32,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 538 transitions. [2023-11-29 20:06:32,131 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8790849673202614 [2023-11-29 20:06:32,132 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 538 transitions. [2023-11-29 20:06:32,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 538 transitions. [2023-11-29 20:06:32,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:06:32,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 538 transitions. [2023-11-29 20:06:32,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 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) [2023-11-29 20:06:32,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 204.0) internal successors, (816), 4 states have internal predecessors, (816), 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) [2023-11-29 20:06:32,151 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 204.0) internal successors, (816), 4 states have internal predecessors, (816), 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) [2023-11-29 20:06:32,154 INFO L307 CegarLoopForPetriNet]: 179 programPoint places, 1 predicate places. [2023-11-29 20:06:32,154 INFO L500 AbstractCegarLoop]: Abstraction has has 180 places, 187 transitions, 434 flow [2023-11-29 20:06:32,155 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 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) [2023-11-29 20:06:32,155 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:06:32,156 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:06:32,156 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 20:06:32,157 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 20:06:32,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:06:32,157 INFO L85 PathProgramCache]: Analyzing trace with hash -256349433, now seen corresponding path program 1 times [2023-11-29 20:06:32,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:06:32,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324176185] [2023-11-29 20:06:32,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:06:32,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:06:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:06:32,271 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 20:06:32,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:06:32,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324176185] [2023-11-29 20:06:32,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324176185] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:06:32,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:06:32,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 20:06:32,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911214800] [2023-11-29 20:06:32,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:06:32,275 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 20:06:32,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:06:32,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 20:06:32,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 20:06:32,277 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 204 [2023-11-29 20:06:32,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 187 transitions, 434 flow. Second operand has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 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) [2023-11-29 20:06:32,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:06:32,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 204 [2023-11-29 20:06:32,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:06:32,363 INFO L124 PetriNetUnfolderBase]: 14/344 cut-off events. [2023-11-29 20:06:32,364 INFO L125 PetriNetUnfolderBase]: For 15/17 co-relation queries the response was YES. [2023-11-29 20:06:32,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 449 conditions, 344 events. 14/344 cut-off events. For 15/17 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 938 event pairs, 8 based on Foata normal form. 0/331 useless extension candidates. Maximal degree in co-relation 263. Up to 43 conditions per place. [2023-11-29 20:06:32,366 INFO L140 encePairwiseOnDemand]: 201/204 looper letters, 22 selfloop transitions, 2 changer transitions 0/192 dead transitions. [2023-11-29 20:06:32,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 192 transitions, 496 flow [2023-11-29 20:06:32,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 20:06:32,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 20:06:32,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 521 transitions. [2023-11-29 20:06:32,369 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8513071895424836 [2023-11-29 20:06:32,369 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 521 transitions. [2023-11-29 20:06:32,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 521 transitions. [2023-11-29 20:06:32,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:06:32,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 521 transitions. [2023-11-29 20:06:32,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 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) [2023-11-29 20:06:32,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 204.0) internal successors, (816), 4 states have internal predecessors, (816), 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) [2023-11-29 20:06:32,374 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 204.0) internal successors, (816), 4 states have internal predecessors, (816), 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) [2023-11-29 20:06:32,374 INFO L307 CegarLoopForPetriNet]: 179 programPoint places, 3 predicate places. [2023-11-29 20:06:32,374 INFO L500 AbstractCegarLoop]: Abstraction has has 182 places, 192 transitions, 496 flow [2023-11-29 20:06:32,375 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 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) [2023-11-29 20:06:32,375 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:06:32,376 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:06:32,376 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 20:06:32,376 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 20:06:32,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:06:32,377 INFO L85 PathProgramCache]: Analyzing trace with hash -141553455, now seen corresponding path program 1 times [2023-11-29 20:06:32,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:06:32,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704083337] [2023-11-29 20:06:32,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:06:32,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:06:32,433 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 20:06:32,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [583419637] [2023-11-29 20:06:32,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:06:32,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 20:06:32,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 20:06:32,438 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) [2023-11-29 20:06:32,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 20:06:32,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:06:32,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 20:06:32,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 20:06:32,752 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 20:06:32,752 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 20:06:32,855 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 20:06:32,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:06:32,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704083337] [2023-11-29 20:06:32,856 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 20:06:32,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583419637] [2023-11-29 20:06:32,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [583419637] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 20:06:32,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 20:06:32,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 20:06:32,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939368205] [2023-11-29 20:06:32,857 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 20:06:32,857 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 20:06:32,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:06:32,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 20:06:32,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 20:06:32,861 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 204 [2023-11-29 20:06:32,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 192 transitions, 496 flow. Second operand has 8 states, 8 states have (on average 167.125) internal successors, (1337), 8 states have internal predecessors, (1337), 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) [2023-11-29 20:06:32,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:06:32,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 204 [2023-11-29 20:06:32,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:06:33,061 INFO L124 PetriNetUnfolderBase]: 14/422 cut-off events. [2023-11-29 20:06:33,061 INFO L125 PetriNetUnfolderBase]: For 50/54 co-relation queries the response was YES. [2023-11-29 20:06:33,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 608 conditions, 422 events. 14/422 cut-off events. For 50/54 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 720 event pairs, 8 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 395. Up to 53 conditions per place. [2023-11-29 20:06:33,064 INFO L140 encePairwiseOnDemand]: 198/204 looper letters, 24 selfloop transitions, 9 changer transitions 0/200 dead transitions. [2023-11-29 20:06:33,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 200 transitions, 594 flow [2023-11-29 20:06:33,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 20:06:33,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 20:06:33,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1517 transitions. [2023-11-29 20:06:33,068 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8262527233115469 [2023-11-29 20:06:33,068 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1517 transitions. [2023-11-29 20:06:33,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1517 transitions. [2023-11-29 20:06:33,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:06:33,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1517 transitions. [2023-11-29 20:06:33,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 168.55555555555554) internal successors, (1517), 9 states have internal predecessors, (1517), 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) [2023-11-29 20:06:33,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 204.0) internal successors, (2040), 10 states have internal predecessors, (2040), 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) [2023-11-29 20:06:33,076 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 204.0) internal successors, (2040), 10 states have internal predecessors, (2040), 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) [2023-11-29 20:06:33,077 INFO L307 CegarLoopForPetriNet]: 179 programPoint places, 11 predicate places. [2023-11-29 20:06:33,077 INFO L500 AbstractCegarLoop]: Abstraction has has 190 places, 200 transitions, 594 flow [2023-11-29 20:06:33,078 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 167.125) internal successors, (1337), 8 states have internal predecessors, (1337), 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) [2023-11-29 20:06:33,078 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:06:33,078 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:06:33,095 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 20:06:33,291 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 20:06:33,291 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 20:06:33,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:06:33,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1135721839, now seen corresponding path program 2 times [2023-11-29 20:06:33,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:06:33,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139407164] [2023-11-29 20:06:33,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:06:33,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:06:33,339 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 20:06:33,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [556545933] [2023-11-29 20:06:33,340 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 20:06:33,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 20:06:33,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 20:06:33,341 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) [2023-11-29 20:06:33,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 20:06:33,572 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 20:06:33,573 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 20:06:33,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 20:06:33,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 20:06:33,760 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 1 proven. 114 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 20:06:33,761 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 20:06:33,953 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 1 proven. 114 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 20:06:33,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:06:33,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139407164] [2023-11-29 20:06:33,953 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 20:06:33,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556545933] [2023-11-29 20:06:33,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556545933] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 20:06:33,954 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 20:06:33,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-29 20:06:33,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956440244] [2023-11-29 20:06:33,954 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 20:06:33,956 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 20:06:33,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:06:33,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 20:06:33,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-11-29 20:06:33,962 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 204 [2023-11-29 20:06:33,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 200 transitions, 594 flow. Second operand has 16 states, 16 states have (on average 167.3125) internal successors, (2677), 16 states have internal predecessors, (2677), 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) [2023-11-29 20:06:33,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:06:33,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 204 [2023-11-29 20:06:33,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:06:34,274 INFO L124 PetriNetUnfolderBase]: 14/718 cut-off events. [2023-11-29 20:06:34,274 INFO L125 PetriNetUnfolderBase]: For 130/136 co-relation queries the response was YES. [2023-11-29 20:06:34,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1099 conditions, 718 events. 14/718 cut-off events. For 130/136 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 724 event pairs, 8 based on Foata normal form. 0/705 useless extension candidates. Maximal degree in co-relation 859. Up to 85 conditions per place. [2023-11-29 20:06:34,276 INFO L140 encePairwiseOnDemand]: 198/204 looper letters, 36 selfloop transitions, 21 changer transitions 0/224 dead transitions. [2023-11-29 20:06:34,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 224 transitions, 860 flow [2023-11-29 20:06:34,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 20:06:34,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-29 20:06:34,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3519 transitions. [2023-11-29 20:06:34,283 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8214285714285714 [2023-11-29 20:06:34,283 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3519 transitions. [2023-11-29 20:06:34,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3519 transitions. [2023-11-29 20:06:34,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:06:34,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3519 transitions. [2023-11-29 20:06:34,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 167.57142857142858) internal successors, (3519), 21 states have internal predecessors, (3519), 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) [2023-11-29 20:06:34,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 204.0) internal successors, (4488), 22 states have internal predecessors, (4488), 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) [2023-11-29 20:06:34,301 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 204.0) internal successors, (4488), 22 states have internal predecessors, (4488), 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) [2023-11-29 20:06:34,301 INFO L307 CegarLoopForPetriNet]: 179 programPoint places, 31 predicate places. [2023-11-29 20:06:34,302 INFO L500 AbstractCegarLoop]: Abstraction has has 210 places, 224 transitions, 860 flow [2023-11-29 20:06:34,303 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 167.3125) internal successors, (2677), 16 states have internal predecessors, (2677), 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) [2023-11-29 20:06:34,303 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:06:34,303 INFO L232 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:06:34,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-29 20:06:34,515 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,SelfDestructingSolverStorable3 [2023-11-29 20:06:34,516 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 20:06:34,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:06:34,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1997335023, now seen corresponding path program 3 times [2023-11-29 20:06:34,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:06:34,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985841281] [2023-11-29 20:06:34,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:06:34,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:06:34,606 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 20:06:34,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [939687507] [2023-11-29 20:06:34,607 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 20:06:34,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 20:06:34,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 20:06:34,608 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) [2023-11-29 20:06:34,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 20:06:34,892 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 20:06:34,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 20:06:34,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 20:06:34,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 20:06:35,173 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2023-11-29 20:06:35,174 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 20:06:35,441 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2023-11-29 20:06:35,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:06:35,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985841281] [2023-11-29 20:06:35,446 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 20:06:35,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939687507] [2023-11-29 20:06:35,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939687507] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 20:06:35,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 20:06:35,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 20:06:35,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903200333] [2023-11-29 20:06:35,447 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 20:06:35,448 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 20:06:35,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:06:35,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 20:06:35,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 20:06:35,450 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 204 [2023-11-29 20:06:35,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 224 transitions, 860 flow. Second operand has 8 states, 8 states have (on average 164.875) internal successors, (1319), 8 states have internal predecessors, (1319), 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) [2023-11-29 20:06:35,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:06:35,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 204 [2023-11-29 20:06:35,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:06:35,738 INFO L124 PetriNetUnfolderBase]: 15/995 cut-off events. [2023-11-29 20:06:35,739 INFO L125 PetriNetUnfolderBase]: For 255/263 co-relation queries the response was YES. [2023-11-29 20:06:35,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1599 conditions, 995 events. 15/995 cut-off events. For 255/263 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 406 event pairs, 8 based on Foata normal form. 0/981 useless extension candidates. Maximal degree in co-relation 1332. Up to 113 conditions per place. [2023-11-29 20:06:35,741 INFO L140 encePairwiseOnDemand]: 198/204 looper letters, 48 selfloop transitions, 9 changer transitions 0/240 dead transitions. [2023-11-29 20:06:35,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 240 transitions, 1076 flow [2023-11-29 20:06:35,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 20:06:35,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 20:06:35,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1499 transitions. [2023-11-29 20:06:35,745 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8164488017429193 [2023-11-29 20:06:35,745 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1499 transitions. [2023-11-29 20:06:35,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1499 transitions. [2023-11-29 20:06:35,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:06:35,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1499 transitions. [2023-11-29 20:06:35,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 166.55555555555554) internal successors, (1499), 9 states have internal predecessors, (1499), 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) [2023-11-29 20:06:35,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 204.0) internal successors, (2040), 10 states have internal predecessors, (2040), 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) [2023-11-29 20:06:35,754 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 204.0) internal successors, (2040), 10 states have internal predecessors, (2040), 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) [2023-11-29 20:06:35,755 INFO L307 CegarLoopForPetriNet]: 179 programPoint places, 39 predicate places. [2023-11-29 20:06:35,755 INFO L500 AbstractCegarLoop]: Abstraction has has 218 places, 240 transitions, 1076 flow [2023-11-29 20:06:35,756 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 164.875) internal successors, (1319), 8 states have internal predecessors, (1319), 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) [2023-11-29 20:06:35,756 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:06:35,757 INFO L232 CegarLoopForPetriNet]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:06:35,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 20:06:35,962 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 20:06:35,962 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 20:06:35,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:06:35,963 INFO L85 PathProgramCache]: Analyzing trace with hash 2012971151, now seen corresponding path program 4 times [2023-11-29 20:06:35,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:06:35,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109775810] [2023-11-29 20:06:35,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:06:35,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:06:36,115 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 20:06:36,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1123894360] [2023-11-29 20:06:36,116 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 20:06:36,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 20:06:36,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 20:06:36,117 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) [2023-11-29 20:06:36,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 20:06:37,037 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 20:06:37,038 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 20:06:37,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 3367 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 20:06:37,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 20:06:37,915 INFO L134 CoverageAnalysis]: Checked inductivity of 7886 backedges. 0 proven. 5529 refuted. 0 times theorem prover too weak. 2357 trivial. 0 not checked. [2023-11-29 20:06:37,915 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 20:06:38,791 INFO L134 CoverageAnalysis]: Checked inductivity of 7886 backedges. 0 proven. 5529 refuted. 0 times theorem prover too weak. 2357 trivial. 0 not checked. [2023-11-29 20:06:38,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:06:38,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109775810] [2023-11-29 20:06:38,791 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 20:06:38,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123894360] [2023-11-29 20:06:38,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123894360] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 20:06:38,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 20:06:38,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-29 20:06:38,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204092646] [2023-11-29 20:06:38,792 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 20:06:38,793 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 20:06:38,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:06:38,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 20:06:38,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-11-29 20:06:38,797 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 204 [2023-11-29 20:06:38,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 240 transitions, 1076 flow. Second operand has 16 states, 16 states have (on average 165.4375) internal successors, (2647), 16 states have internal predecessors, (2647), 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) [2023-11-29 20:06:38,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:06:38,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 204 [2023-11-29 20:06:38,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:06:39,712 INFO L124 PetriNetUnfolderBase]: 19/2095 cut-off events. [2023-11-29 20:06:39,713 INFO L125 PetriNetUnfolderBase]: For 705/715 co-relation queries the response was YES. [2023-11-29 20:06:39,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3468 conditions, 2095 events. 19/2095 cut-off events. For 705/715 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 409 event pairs, 8 based on Foata normal form. 0/2077 useless extension candidates. Maximal degree in co-relation 3174. Up to 225 conditions per place. [2023-11-29 20:06:39,717 INFO L140 encePairwiseOnDemand]: 198/204 looper letters, 92 selfloop transitions, 21 changer transitions 0/296 dead transitions. [2023-11-29 20:06:39,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 296 transitions, 1798 flow [2023-11-29 20:06:39,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 20:06:39,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-29 20:06:39,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3477 transitions. [2023-11-29 20:06:39,724 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.811624649859944 [2023-11-29 20:06:39,724 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3477 transitions. [2023-11-29 20:06:39,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3477 transitions. [2023-11-29 20:06:39,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:06:39,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3477 transitions. [2023-11-29 20:06:39,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 165.57142857142858) internal successors, (3477), 21 states have internal predecessors, (3477), 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) [2023-11-29 20:06:39,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 204.0) internal successors, (4488), 22 states have internal predecessors, (4488), 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) [2023-11-29 20:06:39,740 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 204.0) internal successors, (4488), 22 states have internal predecessors, (4488), 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) [2023-11-29 20:06:39,741 INFO L307 CegarLoopForPetriNet]: 179 programPoint places, 59 predicate places. [2023-11-29 20:06:39,741 INFO L500 AbstractCegarLoop]: Abstraction has has 238 places, 296 transitions, 1798 flow [2023-11-29 20:06:39,742 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 165.4375) internal successors, (2647), 16 states have internal predecessors, (2647), 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) [2023-11-29 20:06:39,742 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:06:39,743 INFO L232 CegarLoopForPetriNet]: trace histogram [49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:06:39,755 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-29 20:06:39,954 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 20:06:39,955 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 20:06:39,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:06:39,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1162567541, now seen corresponding path program 5 times [2023-11-29 20:06:39,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:06:39,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760293730] [2023-11-29 20:06:39,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:06:39,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:06:40,235 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 20:06:40,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [63314919] [2023-11-29 20:06:40,236 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 20:06:40,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 20:06:40,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 20:06:40,237 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) [2023-11-29 20:06:40,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process Received shutdown request... [2023-11-29 20:21:13,102 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-29 20:21:13,103 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-29 20:21:14,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2023-11-29 20:21:14,308 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process [2023-11-29 20:21:14,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 137 [2023-11-29 20:21:14,335 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-11-29 20:21:14,338 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 3 remaining) [2023-11-29 20:21:14,338 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 20:21:14,338 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 1958 with TraceHistMax 49,while AutomatonFreeRefinementEngine was Timeout during CAMEL. [2023-11-29 20:21:14,339 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2023-11-29 20:21:14,340 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-11-29 20:21:14,340 INFO L457 BasicCegarLoop]: Path program histogram: [5, 1, 1] [2023-11-29 20:21:14,344 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 20:21:14,344 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 20:21:14,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:21:14 BasicIcfg [2023-11-29 20:21:14,351 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 20:21:14,351 INFO L158 Benchmark]: Toolchain (without parser) took 884286.80ms. Allocated memory was 570.4MB in the beginning and 767.6MB in the end (delta: 197.1MB). Free memory was 516.0MB in the beginning and 566.6MB in the end (delta: -50.6MB). Peak memory consumption was 148.0MB. Max. memory is 16.0GB. [2023-11-29 20:21:14,351 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 358.6MB. Free memory is still 310.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-29 20:21:14,352 INFO L158 Benchmark]: CACSL2BoogieTranslator took 650.72ms. Allocated memory is still 570.4MB. Free memory was 515.6MB in the beginning and 484.4MB in the end (delta: 31.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. [2023-11-29 20:21:14,352 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.00ms. Allocated memory is still 570.4MB. Free memory was 484.4MB in the beginning and 481.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-29 20:21:14,352 INFO L158 Benchmark]: Boogie Preprocessor took 34.57ms. Allocated memory is still 570.4MB. Free memory was 481.5MB in the beginning and 479.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-29 20:21:14,352 INFO L158 Benchmark]: RCFGBuilder took 501.49ms. Allocated memory is still 570.4MB. Free memory was 479.1MB in the beginning and 532.4MB in the end (delta: -53.3MB). Peak memory consumption was 28.1MB. Max. memory is 16.0GB. [2023-11-29 20:21:14,354 INFO L158 Benchmark]: TraceAbstraction took 883031.55ms. Allocated memory was 570.4MB in the beginning and 767.6MB in the end (delta: 197.1MB). Free memory was 531.3MB in the beginning and 566.6MB in the end (delta: -35.2MB). Peak memory consumption was 161.9MB. Max. memory is 16.0GB. [2023-11-29 20:21:14,358 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 358.6MB. Free memory is still 310.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 650.72ms. Allocated memory is still 570.4MB. Free memory was 515.6MB in the beginning and 484.4MB in the end (delta: 31.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 63.00ms. Allocated memory is still 570.4MB. Free memory was 484.4MB in the beginning and 481.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 34.57ms. Allocated memory is still 570.4MB. Free memory was 481.5MB in the beginning and 479.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 501.49ms. Allocated memory is still 570.4MB. Free memory was 479.1MB in the beginning and 532.4MB in the end (delta: -53.3MB). Peak memory consumption was 28.1MB. Max. memory is 16.0GB. * TraceAbstraction took 883031.55ms. Allocated memory was 570.4MB in the beginning and 767.6MB in the end (delta: 197.1MB). Free memory was 531.3MB in the beginning and 566.6MB in the end (delta: -35.2MB). Peak memory consumption was 161.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1061]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was analyzing trace of length 1958 with TraceHistMax 49,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - TimeoutResultAtElement [Line: 999]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 1958 with TraceHistMax 49,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 260 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 882.9s, OverallIterations: 7, TraceHistogramMax: 49, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 94 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 94 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 553 IncrementalHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 36 mSDtfsCounter, 553 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2890 GetRequests, 2816 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1798occurred in iteration=6, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 1523 NumberOfCodeBlocks, 1207 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 2943 ConstructedInterpolants, 0 QuantifiedInterpolants, 7939 SizeOfPredicates, 16 NumberOfNonLiveVariables, 4517 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 6327/17617 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown