/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -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-a20a710-m [2023-12-09 15:04:21,604 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:04:21,658 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 [2023-12-09 15:04:21,686 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:04:21,686 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:04:21,687 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:04:21,687 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:04:21,687 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:04:21,688 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:04:21,688 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:04:21,688 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:04:21,688 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:04:21,689 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:04:21,689 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:04:21,689 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:04:21,689 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:04:21,689 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:04:21,690 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:04:21,690 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:04:21,690 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:04:21,690 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:04:21,694 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:04:21,694 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:04:21,694 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:04:21,697 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:04:21,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:04:21,698 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:04:21,699 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:04:21,699 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:04:21,699 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:04:21,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:04:21,700 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:04:21,700 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:04:21,700 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:04:21,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:04:21,875 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:04:21,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:04:21,878 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:04:21,878 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:04:21,879 INFO L431 ainManager$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 [2023-12-09 15:04:23,029 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:04:23,269 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:04:23,269 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2023-12-09 15:04:23,282 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a7abecbb/99a5b4c267d243198b4408400d919eff/FLAGebf74eebf [2023-12-09 15:04:23,292 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a7abecbb/99a5b4c267d243198b4408400d919eff [2023-12-09 15:04:23,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:04:23,296 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:04:23,297 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:04:23,297 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:04:23,303 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:04:23,304 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:04:23" (1/1) ... [2023-12-09 15:04:23,304 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@757f3b60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:23, skipping insertion in model container [2023-12-09 15:04:23,304 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:04:23" (1/1) ... [2023-12-09 15:04:23,340 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:04:23,632 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] [2023-12-09 15:04:23,645 WARN L1590 CHandler]: Possible shadowing of function new [2023-12-09 15:04:23,645 WARN L1590 CHandler]: Possible shadowing of function new [2023-12-09 15:04:23,645 WARN L1590 CHandler]: Possible shadowing of function new [2023-12-09 15:04:23,646 WARN L1590 CHandler]: Possible shadowing of function new [2023-12-09 15:04:23,671 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:04:23,696 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:04:23,727 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] [2023-12-09 15:04:23,738 WARN L1590 CHandler]: Possible shadowing of function new [2023-12-09 15:04:23,738 WARN L1590 CHandler]: Possible shadowing of function new [2023-12-09 15:04:23,738 WARN L1590 CHandler]: Possible shadowing of function new [2023-12-09 15:04:23,739 WARN L1590 CHandler]: Possible shadowing of function new [2023-12-09 15:04:23,755 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:04:23,805 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:04:23,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:23 WrapperNode [2023-12-09 15:04:23,806 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:04:23,807 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:04:23,807 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:04:23,808 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:04:23,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:23" (1/1) ... [2023-12-09 15:04:23,838 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:23" (1/1) ... [2023-12-09 15:04:23,861 INFO L138 Inliner]: procedures = 278, calls = 49, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 199 [2023-12-09 15:04:23,861 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:04:23,862 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:04:23,862 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:04:23,862 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:04:23,872 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:23" (1/1) ... [2023-12-09 15:04:23,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:23" (1/1) ... [2023-12-09 15:04:23,875 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:23" (1/1) ... [2023-12-09 15:04:23,875 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:23" (1/1) ... [2023-12-09 15:04:23,882 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:23" (1/1) ... [2023-12-09 15:04:23,885 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:23" (1/1) ... [2023-12-09 15:04:23,887 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:23" (1/1) ... [2023-12-09 15:04:23,888 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:23" (1/1) ... [2023-12-09 15:04:23,890 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:04:23,891 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:04:23,891 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:04:23,891 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:04:23,891 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:23" (1/1) ... [2023-12-09 15:04:23,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:04:23,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:04:23,923 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) [2023-12-09 15:04:23,956 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 [2023-12-09 15:04:23,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:04:23,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-09 15:04:23,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:04:23,970 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-09 15:04:23,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:04:23,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:04:23,971 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-09 15:04:23,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-09 15:04:23,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:04:23,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-09 15:04:23,972 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-12-09 15:04:23,972 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-12-09 15:04:23,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:04:23,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:04:23,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:04:23,974 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-09 15:04:24,078 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:04:24,080 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:04:24,310 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:04:24,344 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:04:24,344 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-12-09 15:04:24,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:04:24 BoogieIcfgContainer [2023-12-09 15:04:24,346 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:04:24,347 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:04:24,347 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:04:24,349 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:04:24,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:04:23" (1/3) ... [2023-12-09 15:04:24,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@530fe257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:04:24, skipping insertion in model container [2023-12-09 15:04:24,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:23" (2/3) ... [2023-12-09 15:04:24,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@530fe257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:04:24, skipping insertion in model container [2023-12-09 15:04:24,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:04:24" (3/3) ... [2023-12-09 15:04:24,351 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_91-arrayloop2_racefree.i [2023-12-09 15:04:24,363 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:04:24,363 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:04:24,364 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:04:24,437 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-12-09 15:04:24,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 183 places, 204 transitions, 415 flow [2023-12-09 15:04:24,552 INFO L124 PetriNetUnfolderBase]: 26/223 cut-off events. [2023-12-09 15:04:24,553 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-12-09 15:04:24,563 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. [2023-12-09 15:04:24,563 INFO L82 GeneralOperation]: Start removeDead. Operand has 183 places, 204 transitions, 415 flow [2023-12-09 15:04:24,571 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 179 places, 199 transitions, 402 flow [2023-12-09 15:04:24,583 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:04:24,594 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;@4ef52501, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:04:24,594 INFO L363 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-12-09 15:04:24,616 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:04:24,616 INFO L124 PetriNetUnfolderBase]: 7/96 cut-off events. [2023-12-09 15:04:24,616 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 15:04:24,616 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:04:24,617 INFO L233 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] [2023-12-09 15:04:24,620 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-09 15:04:24,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:04:24,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1946672590, now seen corresponding path program 1 times [2023-12-09 15:04:24,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:04:24,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860811616] [2023-12-09 15:04:24,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:24,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:04:24,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:04:24,866 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-09 15:04:24,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:04:24,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860811616] [2023-12-09 15:04:24,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860811616] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:04:24,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:04:24,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-09 15:04:24,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506087058] [2023-12-09 15:04:24,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:04:24,887 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-09 15:04:24,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:04:24,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-09 15:04:24,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-09 15:04:24,911 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 204 [2023-12-09 15:04:24,913 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) [2023-12-09 15:04:24,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:04:24,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 204 [2023-12-09 15:04:24,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:04:25,009 INFO L124 PetriNetUnfolderBase]: 14/272 cut-off events. [2023-12-09 15:04:25,009 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-12-09 15:04:25,011 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. [2023-12-09 15:04:25,013 INFO L140 encePairwiseOnDemand]: 183/204 looper letters, 26 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2023-12-09 15:04:25,013 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 187 transitions, 434 flow [2023-12-09 15:04:25,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-09 15:04:25,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-09 15:04:25,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 538 transitions. [2023-12-09 15:04:25,028 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8790849673202614 [2023-12-09 15:04:25,029 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 538 transitions. [2023-12-09 15:04:25,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 538 transitions. [2023-12-09 15:04:25,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:04:25,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 538 transitions. [2023-12-09 15:04:25,039 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) [2023-12-09 15:04:25,045 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) [2023-12-09 15:04:25,046 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) [2023-12-09 15:04:25,051 INFO L308 CegarLoopForPetriNet]: 179 programPoint places, 1 predicate places. [2023-12-09 15:04:25,052 INFO L500 AbstractCegarLoop]: Abstraction has has 180 places, 187 transitions, 434 flow [2023-12-09 15:04:25,052 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) [2023-12-09 15:04:25,052 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:04:25,053 INFO L233 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] [2023-12-09 15:04:25,054 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:04:25,054 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-09 15:04:25,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:04:25,054 INFO L85 PathProgramCache]: Analyzing trace with hash -256349433, now seen corresponding path program 1 times [2023-12-09 15:04:25,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:04:25,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050416463] [2023-12-09 15:04:25,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:25,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:04:25,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:04:25,212 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-09 15:04:25,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:04:25,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050416463] [2023-12-09 15:04:25,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050416463] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:04:25,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:04:25,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-09 15:04:25,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574623778] [2023-12-09 15:04:25,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:04:25,215 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-09 15:04:25,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:04:25,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-09 15:04:25,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-09 15:04:25,218 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 204 [2023-12-09 15:04:25,219 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) [2023-12-09 15:04:25,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:04:25,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 204 [2023-12-09 15:04:25,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:04:25,307 INFO L124 PetriNetUnfolderBase]: 14/344 cut-off events. [2023-12-09 15:04:25,307 INFO L125 PetriNetUnfolderBase]: For 15/17 co-relation queries the response was YES. [2023-12-09 15:04:25,308 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. [2023-12-09 15:04:25,309 INFO L140 encePairwiseOnDemand]: 201/204 looper letters, 22 selfloop transitions, 2 changer transitions 0/192 dead transitions. [2023-12-09 15:04:25,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 192 transitions, 496 flow [2023-12-09 15:04:25,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-09 15:04:25,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-09 15:04:25,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 521 transitions. [2023-12-09 15:04:25,310 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8513071895424836 [2023-12-09 15:04:25,310 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 521 transitions. [2023-12-09 15:04:25,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 521 transitions. [2023-12-09 15:04:25,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:04:25,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 521 transitions. [2023-12-09 15:04:25,312 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) [2023-12-09 15:04:25,313 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) [2023-12-09 15:04:25,313 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) [2023-12-09 15:04:25,314 INFO L308 CegarLoopForPetriNet]: 179 programPoint places, 3 predicate places. [2023-12-09 15:04:25,314 INFO L500 AbstractCegarLoop]: Abstraction has has 182 places, 192 transitions, 496 flow [2023-12-09 15:04:25,314 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) [2023-12-09 15:04:25,314 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:04:25,315 INFO L233 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] [2023-12-09 15:04:25,315 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 15:04:25,315 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-09 15:04:25,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:04:25,315 INFO L85 PathProgramCache]: Analyzing trace with hash -141553455, now seen corresponding path program 1 times [2023-12-09 15:04:25,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:04:25,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246782437] [2023-12-09 15:04:25,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:25,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:04:25,357 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-09 15:04:25,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1906610829] [2023-12-09 15:04:25,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:25,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:04:25,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:04:25,397 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) [2023-12-09 15:04:25,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-09 15:04:25,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:04:25,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-09 15:04:25,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:04:25,631 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-09 15:04:25,632 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:04:25,699 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-09 15:04:25,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:04:25,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246782437] [2023-12-09 15:04:25,700 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-09 15:04:25,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906610829] [2023-12-09 15:04:25,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906610829] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:04:25,703 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-09 15:04:25,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-09 15:04:25,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700855599] [2023-12-09 15:04:25,703 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-09 15:04:25,705 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:04:25,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:04:25,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:04:25,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:04:25,707 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 204 [2023-12-09 15:04:25,709 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) [2023-12-09 15:04:25,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:04:25,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 204 [2023-12-09 15:04:25,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:04:25,845 INFO L124 PetriNetUnfolderBase]: 14/422 cut-off events. [2023-12-09 15:04:25,845 INFO L125 PetriNetUnfolderBase]: For 50/54 co-relation queries the response was YES. [2023-12-09 15:04:25,847 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. [2023-12-09 15:04:25,848 INFO L140 encePairwiseOnDemand]: 198/204 looper letters, 24 selfloop transitions, 9 changer transitions 0/200 dead transitions. [2023-12-09 15:04:25,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 200 transitions, 594 flow [2023-12-09 15:04:25,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:04:25,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 15:04:25,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1517 transitions. [2023-12-09 15:04:25,852 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8262527233115469 [2023-12-09 15:04:25,852 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1517 transitions. [2023-12-09 15:04:25,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1517 transitions. [2023-12-09 15:04:25,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:04:25,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1517 transitions. [2023-12-09 15:04:25,856 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) [2023-12-09 15:04:25,859 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) [2023-12-09 15:04:25,859 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) [2023-12-09 15:04:25,861 INFO L308 CegarLoopForPetriNet]: 179 programPoint places, 11 predicate places. [2023-12-09 15:04:25,861 INFO L500 AbstractCegarLoop]: Abstraction has has 190 places, 200 transitions, 594 flow [2023-12-09 15:04:25,862 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) [2023-12-09 15:04:25,862 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:04:25,862 INFO L233 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] [2023-12-09 15:04:25,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-09 15:04:26,069 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 [2023-12-09 15:04:26,069 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-09 15:04:26,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:04:26,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1135721839, now seen corresponding path program 2 times [2023-12-09 15:04:26,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:04:26,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726100271] [2023-12-09 15:04:26,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:26,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:04:26,117 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-09 15:04:26,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [282346060] [2023-12-09 15:04:26,118 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-09 15:04:26,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:04:26,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:04:26,134 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) [2023-12-09 15:04:26,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-09 15:04:26,398 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-09 15:04:26,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:04:26,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-09 15:04:26,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:04:26,547 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 1 proven. 114 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-09 15:04:26,548 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:04:26,702 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 1 proven. 114 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-09 15:04:26,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:04:26,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726100271] [2023-12-09 15:04:26,702 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-09 15:04:26,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [282346060] [2023-12-09 15:04:26,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [282346060] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:04:26,703 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-09 15:04:26,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-09 15:04:26,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024372581] [2023-12-09 15:04:26,703 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-09 15:04:26,704 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-09 15:04:26,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:04:26,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-09 15:04:26,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-12-09 15:04:26,709 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 204 [2023-12-09 15:04:26,711 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) [2023-12-09 15:04:26,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:04:26,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 204 [2023-12-09 15:04:26,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:04:26,997 INFO L124 PetriNetUnfolderBase]: 14/718 cut-off events. [2023-12-09 15:04:26,998 INFO L125 PetriNetUnfolderBase]: For 130/136 co-relation queries the response was YES. [2023-12-09 15:04:26,998 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. [2023-12-09 15:04:26,999 INFO L140 encePairwiseOnDemand]: 198/204 looper letters, 36 selfloop transitions, 21 changer transitions 0/224 dead transitions. [2023-12-09 15:04:26,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 224 transitions, 860 flow [2023-12-09 15:04:27,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-09 15:04:27,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-12-09 15:04:27,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3519 transitions. [2023-12-09 15:04:27,006 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8214285714285714 [2023-12-09 15:04:27,006 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3519 transitions. [2023-12-09 15:04:27,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3519 transitions. [2023-12-09 15:04:27,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:04:27,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3519 transitions. [2023-12-09 15:04:27,014 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) [2023-12-09 15:04:27,020 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) [2023-12-09 15:04:27,021 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) [2023-12-09 15:04:27,023 INFO L308 CegarLoopForPetriNet]: 179 programPoint places, 31 predicate places. [2023-12-09 15:04:27,023 INFO L500 AbstractCegarLoop]: Abstraction has has 210 places, 224 transitions, 860 flow [2023-12-09 15:04:27,024 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) [2023-12-09 15:04:27,024 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:04:27,024 INFO L233 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] [2023-12-09 15:04:27,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-09 15:04:27,230 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 [2023-12-09 15:04:27,230 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-09 15:04:27,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:04:27,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1997335023, now seen corresponding path program 3 times [2023-12-09 15:04:27,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:04:27,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884795148] [2023-12-09 15:04:27,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:27,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:04:27,287 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-09 15:04:27,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [566742424] [2023-12-09 15:04:27,287 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-09 15:04:27,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:04:27,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:04:27,306 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) [2023-12-09 15:04:27,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-09 15:04:27,490 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-09 15:04:27,491 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:04:27,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-09 15:04:27,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:04:27,715 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2023-12-09 15:04:27,716 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:04:27,932 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2023-12-09 15:04:27,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:04:27,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884795148] [2023-12-09 15:04:27,932 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-09 15:04:27,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566742424] [2023-12-09 15:04:27,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566742424] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:04:27,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-09 15:04:27,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-09 15:04:27,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364415528] [2023-12-09 15:04:27,933 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-09 15:04:27,934 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:04:27,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:04:27,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:04:27,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:04:27,936 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 204 [2023-12-09 15:04:27,937 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) [2023-12-09 15:04:27,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:04:27,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 204 [2023-12-09 15:04:27,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:04:28,246 INFO L124 PetriNetUnfolderBase]: 15/995 cut-off events. [2023-12-09 15:04:28,246 INFO L125 PetriNetUnfolderBase]: For 255/263 co-relation queries the response was YES. [2023-12-09 15:04:28,247 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. [2023-12-09 15:04:28,248 INFO L140 encePairwiseOnDemand]: 198/204 looper letters, 48 selfloop transitions, 9 changer transitions 0/240 dead transitions. [2023-12-09 15:04:28,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 240 transitions, 1076 flow [2023-12-09 15:04:28,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:04:28,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 15:04:28,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1499 transitions. [2023-12-09 15:04:28,251 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8164488017429193 [2023-12-09 15:04:28,251 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1499 transitions. [2023-12-09 15:04:28,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1499 transitions. [2023-12-09 15:04:28,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:04:28,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1499 transitions. [2023-12-09 15:04:28,254 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) [2023-12-09 15:04:28,256 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) [2023-12-09 15:04:28,257 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) [2023-12-09 15:04:28,268 INFO L308 CegarLoopForPetriNet]: 179 programPoint places, 39 predicate places. [2023-12-09 15:04:28,269 INFO L500 AbstractCegarLoop]: Abstraction has has 218 places, 240 transitions, 1076 flow [2023-12-09 15:04:28,269 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) [2023-12-09 15:04:28,269 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:04:28,269 INFO L233 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] [2023-12-09 15:04:28,288 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-09 15:04:28,470 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 [2023-12-09 15:04:28,470 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-09 15:04:28,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:04:28,471 INFO L85 PathProgramCache]: Analyzing trace with hash 2012971151, now seen corresponding path program 4 times [2023-12-09 15:04:28,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:04:28,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827459976] [2023-12-09 15:04:28,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:28,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:04:28,672 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-09 15:04:28,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [711727248] [2023-12-09 15:04:28,673 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-09 15:04:28,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:04:28,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:04:28,690 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) [2023-12-09 15:04:28,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-09 15:04:29,501 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-09 15:04:29,501 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:04:29,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 3367 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-09 15:04:29,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:04:30,038 INFO L134 CoverageAnalysis]: Checked inductivity of 7886 backedges. 0 proven. 5529 refuted. 0 times theorem prover too weak. 2357 trivial. 0 not checked. [2023-12-09 15:04:30,038 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:04:30,641 INFO L134 CoverageAnalysis]: Checked inductivity of 7886 backedges. 0 proven. 5529 refuted. 0 times theorem prover too weak. 2357 trivial. 0 not checked. [2023-12-09 15:04:30,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:04:30,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827459976] [2023-12-09 15:04:30,642 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-09 15:04:30,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711727248] [2023-12-09 15:04:30,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711727248] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:04:30,642 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-09 15:04:30,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-09 15:04:30,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213625612] [2023-12-09 15:04:30,643 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-09 15:04:30,643 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-09 15:04:30,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:04:30,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-09 15:04:30,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-12-09 15:04:30,646 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 204 [2023-12-09 15:04:30,649 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) [2023-12-09 15:04:30,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:04:30,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 204 [2023-12-09 15:04:30,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:04:31,392 INFO L124 PetriNetUnfolderBase]: 19/2095 cut-off events. [2023-12-09 15:04:31,392 INFO L125 PetriNetUnfolderBase]: For 705/715 co-relation queries the response was YES. [2023-12-09 15:04:31,393 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. [2023-12-09 15:04:31,396 INFO L140 encePairwiseOnDemand]: 198/204 looper letters, 92 selfloop transitions, 21 changer transitions 0/296 dead transitions. [2023-12-09 15:04:31,396 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 296 transitions, 1798 flow [2023-12-09 15:04:31,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-09 15:04:31,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-12-09 15:04:31,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3477 transitions. [2023-12-09 15:04:31,402 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.811624649859944 [2023-12-09 15:04:31,402 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3477 transitions. [2023-12-09 15:04:31,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3477 transitions. [2023-12-09 15:04:31,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:04:31,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3477 transitions. [2023-12-09 15:04:31,409 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) [2023-12-09 15:04:31,415 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) [2023-12-09 15:04:31,416 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) [2023-12-09 15:04:31,418 INFO L308 CegarLoopForPetriNet]: 179 programPoint places, 59 predicate places. [2023-12-09 15:04:31,418 INFO L500 AbstractCegarLoop]: Abstraction has has 238 places, 296 transitions, 1798 flow [2023-12-09 15:04:31,419 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) [2023-12-09 15:04:31,419 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:04:31,419 INFO L233 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] [2023-12-09 15:04:31,446 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-09 15:04:31,630 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 [2023-12-09 15:04:31,630 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-09 15:04:31,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:04:31,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1162567541, now seen corresponding path program 5 times [2023-12-09 15:04:31,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:04:31,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127117764] [2023-12-09 15:04:31,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:31,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:04:31,910 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-09 15:04:31,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1273077763] [2023-12-09 15:04:31,910 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-09 15:04:31,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:04:31,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:04:31,912 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) [2023-12-09 15:04:31,945 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... [2023-12-09 15:09:11,348 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 [2023-12-09 15:09:11,348 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 [2023-12-09 15:09:12,357 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 [2023-12-09 15:09:12,549 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process [2023-12-09 15:09:12,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 137 [2023-12-09 15:09:12,567 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-12-09 15:09:12,570 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 3 remaining) [2023-12-09 15:09:12,570 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 15:09:12,570 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 1958 with TraceHistMax 49,while AutomatonFreeRefinementEngine was Timeout during CAMEL. [2023-12-09 15:09:12,571 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2023-12-09 15:09:12,571 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-12-09 15:09:12,572 INFO L457 BasicCegarLoop]: Path program histogram: [5, 1, 1] [2023-12-09 15:09:12,575 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:09:12,575 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:09:12,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:09:12 BasicIcfg [2023-12-09 15:09:12,578 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:09:12,578 INFO L158 Benchmark]: Toolchain (without parser) took 289282.72ms. Allocated memory was 217.1MB in the beginning and 481.3MB in the end (delta: 264.2MB). Free memory was 160.6MB in the beginning and 273.3MB in the end (delta: -112.7MB). Peak memory consumption was 153.1MB. Max. memory is 8.0GB. [2023-12-09 15:09:12,578 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 180.4MB. Free memory is still 128.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:09:12,578 INFO L158 Benchmark]: CACSL2BoogieTranslator took 509.13ms. Allocated memory is still 217.1MB. Free memory was 160.6MB in the beginning and 129.1MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2023-12-09 15:09:12,579 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.25ms. Allocated memory is still 217.1MB. Free memory was 129.1MB in the beginning and 126.5MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-09 15:09:12,579 INFO L158 Benchmark]: Boogie Preprocessor took 28.40ms. Allocated memory is still 217.1MB. Free memory was 126.5MB in the beginning and 123.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:09:12,579 INFO L158 Benchmark]: RCFGBuilder took 455.22ms. Allocated memory is still 217.1MB. Free memory was 123.9MB in the beginning and 179.4MB in the end (delta: -55.5MB). Peak memory consumption was 29.5MB. Max. memory is 8.0GB. [2023-12-09 15:09:12,579 INFO L158 Benchmark]: TraceAbstraction took 288230.55ms. Allocated memory was 217.1MB in the beginning and 481.3MB in the end (delta: 264.2MB). Free memory was 178.8MB in the beginning and 273.3MB in the end (delta: -94.4MB). Peak memory consumption was 169.8MB. Max. memory is 8.0GB. [2023-12-09 15:09:12,593 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 180.4MB. Free memory is still 128.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 509.13ms. Allocated memory is still 217.1MB. Free memory was 160.6MB in the beginning and 129.1MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.25ms. Allocated memory is still 217.1MB. Free memory was 129.1MB in the beginning and 126.5MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.40ms. Allocated memory is still 217.1MB. Free memory was 126.5MB in the beginning and 123.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 455.22ms. Allocated memory is still 217.1MB. Free memory was 123.9MB in the beginning and 179.4MB in the end (delta: -55.5MB). Peak memory consumption was 29.5MB. Max. memory is 8.0GB. * TraceAbstraction took 288230.55ms. Allocated memory was 217.1MB in the beginning and 481.3MB in the end (delta: 264.2MB). Free memory was 178.8MB in the beginning and 273.3MB in the end (delta: -94.4MB). Peak memory consumption was 169.8MB. Max. memory is 8.0GB. * 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: 288.1s, OverallIterations: 7, TraceHistogramMax: 49, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, 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, 0.2s 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, 0.3s 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, 2.3s 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