/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_93-evilcollapse_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-29 20:06:28,486 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 20:06:28,544 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 20:06:28,574 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 20:06:28,574 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 20:06:28,574 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 20:06:28,575 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 20:06:28,575 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 20:06:28,575 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 20:06:28,575 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 20:06:28,576 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 20:06:28,576 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 20:06:28,576 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 20:06:28,576 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 20:06:28,577 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 20:06:28,577 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 20:06:28,577 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 20:06:28,577 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 20:06:28,577 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 20:06:28,578 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 20:06:28,578 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 20:06:28,581 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 20:06:28,581 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 20:06:28,582 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-29 20:06:28,584 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 20:06:28,584 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 20:06:28,584 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 20:06:28,585 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 20:06:28,585 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 20:06:28,585 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 20:06:28,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 20:06:28,586 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 20:06:28,586 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 20:06:28,586 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-11-29 20:06:28,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 20:06:28,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 20:06:28,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 20:06:28,773 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 20:06:28,775 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 20:06:28,776 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2023-11-29 20:06:29,799 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 20:06:30,023 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 20:06:30,023 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2023-11-29 20:06:30,036 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/053f3a965/9751067d45f74b498607f35b9a1d9ae3/FLAG52dcf970a [2023-11-29 20:06:30,045 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/053f3a965/9751067d45f74b498607f35b9a1d9ae3 [2023-11-29 20:06:30,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 20:06:30,048 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-29 20:06:30,049 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 20:06:30,049 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 20:06:30,053 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 20:06:30,054 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:06:30" (1/1) ... [2023-11-29 20:06:30,055 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64285b83 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 20:06:30,056 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:06:30" (1/1) ... [2023-11-29 20:06:30,112 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 20:06:30,478 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_93-evilcollapse_racefree.i[47038,47051] [2023-11-29 20:06:30,490 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-29 20:06:30,490 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-29 20:06:30,490 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-29 20:06:30,491 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-29 20:06:30,521 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 20:06:30,542 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 20:06:30,570 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_93-evilcollapse_racefree.i[47038,47051] [2023-11-29 20:06:30,572 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-29 20:06:30,573 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-29 20:06:30,573 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-29 20:06:30,573 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-29 20:06:30,588 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 20:06:30,647 INFO L206 MainTranslator]: Completed translation [2023-11-29 20:06:30,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:06:30 WrapperNode [2023-11-29 20:06:30,648 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 20:06:30,649 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 20:06:30,649 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 20:06:30,650 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 20:06:30,654 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 20:06:30,675 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 20:06:30,694 INFO L138 Inliner]: procedures = 280, calls = 55, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 243 [2023-11-29 20:06:30,695 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 20:06:30,695 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 20:06:30,695 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 20:06:30,695 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 20:06:30,701 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 20:06:30,702 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 20:06:30,710 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 20:06:30,711 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 20:06:30,718 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 20:06:30,737 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 20:06:30,739 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 20:06:30,740 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 20:06:30,742 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 20:06:30,743 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 20:06:30,743 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 20:06:30,743 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 20:06:30,743 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 20:06:30,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 20:06:30,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 20:06:30,786 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 20:06:30,807 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 20:06:30,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 20:06:30,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-29 20:06:30,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 20:06:30,812 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 20:06:30,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 20:06:30,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 20:06:30,813 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 20:06:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 20:06:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 20:06:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-29 20:06:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-29 20:06:30,814 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-29 20:06:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 20:06:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 20:06:30,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 20:06:30,816 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 20:06:30,963 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 20:06:30,964 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 20:06:31,387 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 20:06:31,410 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 20:06:31,410 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-29 20:06:31,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:06:31 BoogieIcfgContainer [2023-11-29 20:06:31,412 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 20:06:31,418 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 20:06:31,418 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 20:06:31,420 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 20:06:31,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:06:30" (1/3) ... [2023-11-29 20:06:31,422 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@177f9327 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 20:06:31,422 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 20:06:31,422 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@177f9327 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 20:06:31,422 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 20:06:31,424 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_93-evilcollapse_racefree.i [2023-11-29 20:06:31,436 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 20:06:31,436 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 20:06:31,436 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 20:06:31,487 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-29 20:06:31,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 241 places, 265 transitions, 537 flow [2023-11-29 20:06:31,586 INFO L124 PetriNetUnfolderBase]: 29/284 cut-off events. [2023-11-29 20:06:31,587 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 20:06:31,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 284 events. 29/284 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 613 event pairs, 0 based on Foata normal form. 0/251 useless extension candidates. Maximal degree in co-relation 158. Up to 4 conditions per place. [2023-11-29 20:06:31,594 INFO L82 GeneralOperation]: Start removeDead. Operand has 241 places, 265 transitions, 537 flow [2023-11-29 20:06:31,602 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 237 places, 260 transitions, 524 flow [2023-11-29 20:06:31,612 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 20:06:31,616 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;@67a3a517, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 20:06:31,617 INFO L363 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-29 20:06:31,663 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 20:06:31,663 INFO L124 PetriNetUnfolderBase]: 11/183 cut-off events. [2023-11-29 20:06:31,663 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 20:06:31,663 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:06:31,664 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] [2023-11-29 20:06:31,664 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 20:06:31,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:06:31,670 INFO L85 PathProgramCache]: Analyzing trace with hash 99610333, now seen corresponding path program 1 times [2023-11-29 20:06:31,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:06:31,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535043838] [2023-11-29 20:06:31,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:06:31,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:06:31,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:06:31,986 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 20:06:31,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:06:31,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535043838] [2023-11-29 20:06:31,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535043838] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:06:31,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:06:31,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 20:06:31,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020777618] [2023-11-29 20:06:31,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:06:31,996 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 20:06:32,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:06:32,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 20:06:32,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 20:06:32,023 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 265 [2023-11-29 20:06:32,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 260 transitions, 524 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 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 20:06:32,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:06:32,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 265 [2023-11-29 20:06:32,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:06:32,130 INFO L124 PetriNetUnfolderBase]: 15/331 cut-off events. [2023-11-29 20:06:32,130 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 20:06:32,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 331 events. 15/331 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 869 event pairs, 8 based on Foata normal form. 46/361 useless extension candidates. Maximal degree in co-relation 222. Up to 39 conditions per place. [2023-11-29 20:06:32,135 INFO L140 encePairwiseOnDemand]: 242/265 looper letters, 26 selfloop transitions, 2 changer transitions 2/246 dead transitions. [2023-11-29 20:06:32,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 246 transitions, 552 flow [2023-11-29 20:06:32,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 20:06:32,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 20:06:32,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 717 transitions. [2023-11-29 20:06:32,150 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9018867924528302 [2023-11-29 20:06:32,151 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 717 transitions. [2023-11-29 20:06:32,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 717 transitions. [2023-11-29 20:06:32,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:06:32,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 717 transitions. [2023-11-29 20:06:32,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 239.0) internal successors, (717), 3 states have internal predecessors, (717), 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 20:06:32,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 265.0) internal successors, (1060), 4 states have internal predecessors, (1060), 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 20:06:32,166 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 265.0) internal successors, (1060), 4 states have internal predecessors, (1060), 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 20:06:32,169 INFO L307 CegarLoopForPetriNet]: 237 programPoint places, 1 predicate places. [2023-11-29 20:06:32,169 INFO L500 AbstractCegarLoop]: Abstraction has has 238 places, 246 transitions, 552 flow [2023-11-29 20:06:32,169 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 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 20:06:32,170 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:06:32,170 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] [2023-11-29 20:06:32,170 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 20:06:32,170 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 20:06:32,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:06:32,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1228408046, now seen corresponding path program 1 times [2023-11-29 20:06:32,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:06:32,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876557669] [2023-11-29 20:06:32,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:06:32,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:06:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:06:32,311 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 20:06:32,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:06:32,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876557669] [2023-11-29 20:06:32,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876557669] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:06:32,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:06:32,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 20:06:32,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690656279] [2023-11-29 20:06:32,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:06:32,315 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 20:06:32,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:06:32,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 20:06:32,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 20:06:32,318 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 265 [2023-11-29 20:06:32,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 246 transitions, 552 flow. Second operand has 3 states, 3 states have (on average 226.66666666666666) internal successors, (680), 3 states have internal predecessors, (680), 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 20:06:32,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:06:32,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 265 [2023-11-29 20:06:32,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:06:32,402 INFO L124 PetriNetUnfolderBase]: 15/403 cut-off events. [2023-11-29 20:06:32,402 INFO L125 PetriNetUnfolderBase]: For 15/17 co-relation queries the response was YES. [2023-11-29 20:06:32,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 508 conditions, 403 events. 15/403 cut-off events. For 15/17 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1039 event pairs, 8 based on Foata normal form. 0/387 useless extension candidates. Maximal degree in co-relation 322. Up to 43 conditions per place. [2023-11-29 20:06:32,404 INFO L140 encePairwiseOnDemand]: 262/265 looper letters, 22 selfloop transitions, 2 changer transitions 2/251 dead transitions. [2023-11-29 20:06:32,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 251 transitions, 614 flow [2023-11-29 20:06:32,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 20:06:32,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 20:06:32,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 698 transitions. [2023-11-29 20:06:32,407 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8779874213836478 [2023-11-29 20:06:32,407 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 698 transitions. [2023-11-29 20:06:32,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 698 transitions. [2023-11-29 20:06:32,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:06:32,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 698 transitions. [2023-11-29 20:06:32,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 232.66666666666666) internal successors, (698), 3 states have internal predecessors, (698), 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 20:06:32,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 265.0) internal successors, (1060), 4 states have internal predecessors, (1060), 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 20:06:32,411 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 265.0) internal successors, (1060), 4 states have internal predecessors, (1060), 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 20:06:32,412 INFO L307 CegarLoopForPetriNet]: 237 programPoint places, 3 predicate places. [2023-11-29 20:06:32,412 INFO L500 AbstractCegarLoop]: Abstraction has has 240 places, 251 transitions, 614 flow [2023-11-29 20:06:32,413 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 226.66666666666666) internal successors, (680), 3 states have internal predecessors, (680), 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 20:06:32,413 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:06:32,413 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:06:32,414 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 20:06:32,414 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 20:06:32,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:06:32,415 INFO L85 PathProgramCache]: Analyzing trace with hash 2049659852, now seen corresponding path program 1 times [2023-11-29 20:06:32,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:06:32,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657152634] [2023-11-29 20:06:32,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:06:32,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:06:32,454 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 20:06:32,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [335365712] [2023-11-29 20:06:32,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:06:32,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 20:06:32,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 20:06:32,468 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 20:06:32,499 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 20:06:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:06:32,640 INFO L262 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 20:06:32,650 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 20:06:32,718 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 20:06:32,718 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 20:06:32,771 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 20:06:32,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:06:32,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657152634] [2023-11-29 20:06:32,771 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 20:06:32,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335365712] [2023-11-29 20:06:32,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335365712] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 20:06:32,772 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 20:06:32,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 20:06:32,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112110646] [2023-11-29 20:06:32,772 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 20:06:32,773 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 20:06:32,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:06:32,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 20:06:32,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 20:06:32,775 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 265 [2023-11-29 20:06:32,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 251 transitions, 614 flow. Second operand has 8 states, 8 states have (on average 226.125) internal successors, (1809), 8 states have internal predecessors, (1809), 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 20:06:32,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:06:32,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 265 [2023-11-29 20:06:32,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:06:32,895 INFO L124 PetriNetUnfolderBase]: 15/481 cut-off events. [2023-11-29 20:06:32,895 INFO L125 PetriNetUnfolderBase]: For 50/54 co-relation queries the response was YES. [2023-11-29 20:06:32,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 667 conditions, 481 events. 15/481 cut-off events. For 50/54 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 884 event pairs, 8 based on Foata normal form. 0/465 useless extension candidates. Maximal degree in co-relation 454. Up to 53 conditions per place. [2023-11-29 20:06:32,898 INFO L140 encePairwiseOnDemand]: 259/265 looper letters, 24 selfloop transitions, 9 changer transitions 2/259 dead transitions. [2023-11-29 20:06:32,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 259 transitions, 712 flow [2023-11-29 20:06:32,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 20:06:32,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 20:06:32,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2048 transitions. [2023-11-29 20:06:32,901 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8587002096436058 [2023-11-29 20:06:32,902 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2048 transitions. [2023-11-29 20:06:32,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2048 transitions. [2023-11-29 20:06:32,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:06:32,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2048 transitions. [2023-11-29 20:06:32,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 227.55555555555554) internal successors, (2048), 9 states have internal predecessors, (2048), 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 20:06:32,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 265.0) internal successors, (2650), 10 states have internal predecessors, (2650), 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 20:06:32,909 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 265.0) internal successors, (2650), 10 states have internal predecessors, (2650), 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 20:06:32,910 INFO L307 CegarLoopForPetriNet]: 237 programPoint places, 11 predicate places. [2023-11-29 20:06:32,910 INFO L500 AbstractCegarLoop]: Abstraction has has 248 places, 259 transitions, 712 flow [2023-11-29 20:06:32,911 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 226.125) internal successors, (1809), 8 states have internal predecessors, (1809), 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 20:06:32,911 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:06:32,911 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:06:32,923 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 20:06:33,117 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 20:06:33,117 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 20:06:33,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:06:33,118 INFO L85 PathProgramCache]: Analyzing trace with hash 766998796, now seen corresponding path program 2 times [2023-11-29 20:06:33,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:06:33,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295127310] [2023-11-29 20:06:33,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:06:33,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:06:33,154 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 20:06:33,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1848684325] [2023-11-29 20:06:33,155 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 20:06:33,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 20:06:33,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 20:06:33,156 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 20:06:33,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 20:06:33,346 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 20:06:33,346 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 20:06:33,348 INFO L262 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 20:06:33,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 20:06:33,472 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 20:06:33,472 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 20:06:33,608 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 20:06:33,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:06:33,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295127310] [2023-11-29 20:06:33,609 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 20:06:33,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848684325] [2023-11-29 20:06:33,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848684325] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 20:06:33,609 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 20:06:33,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-29 20:06:33,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741754187] [2023-11-29 20:06:33,609 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 20:06:33,610 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 20:06:33,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:06:33,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 20:06:33,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-11-29 20:06:33,613 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 265 [2023-11-29 20:06:33,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 259 transitions, 712 flow. Second operand has 16 states, 16 states have (on average 226.3125) internal successors, (3621), 16 states have internal predecessors, (3621), 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 20:06:33,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:06:33,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 265 [2023-11-29 20:06:33,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:06:33,903 INFO L124 PetriNetUnfolderBase]: 15/777 cut-off events. [2023-11-29 20:06:33,904 INFO L125 PetriNetUnfolderBase]: For 130/136 co-relation queries the response was YES. [2023-11-29 20:06:33,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1158 conditions, 777 events. 15/777 cut-off events. For 130/136 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 880 event pairs, 8 based on Foata normal form. 0/761 useless extension candidates. Maximal degree in co-relation 918. Up to 85 conditions per place. [2023-11-29 20:06:33,906 INFO L140 encePairwiseOnDemand]: 259/265 looper letters, 36 selfloop transitions, 21 changer transitions 2/283 dead transitions. [2023-11-29 20:06:33,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 283 transitions, 978 flow [2023-11-29 20:06:33,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 20:06:33,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-29 20:06:33,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4758 transitions. [2023-11-29 20:06:33,912 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8549865229110513 [2023-11-29 20:06:33,913 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4758 transitions. [2023-11-29 20:06:33,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4758 transitions. [2023-11-29 20:06:33,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:06:33,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4758 transitions. [2023-11-29 20:06:33,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 226.57142857142858) internal successors, (4758), 21 states have internal predecessors, (4758), 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 20:06:33,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 265.0) internal successors, (5830), 22 states have internal predecessors, (5830), 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 20:06:33,931 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 265.0) internal successors, (5830), 22 states have internal predecessors, (5830), 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 20:06:33,932 INFO L307 CegarLoopForPetriNet]: 237 programPoint places, 31 predicate places. [2023-11-29 20:06:33,932 INFO L500 AbstractCegarLoop]: Abstraction has has 268 places, 283 transitions, 978 flow [2023-11-29 20:06:33,934 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 226.3125) internal successors, (3621), 16 states have internal predecessors, (3621), 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 20:06:33,934 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:06:33,934 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:06:33,942 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 20:06:34,142 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 20:06:34,142 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 20:06:34,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:06:34,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1414720628, now seen corresponding path program 3 times [2023-11-29 20:06:34,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:06:34,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776379438] [2023-11-29 20:06:34,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:06:34,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:06:34,190 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 20:06:34,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1054126462] [2023-11-29 20:06:34,191 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 20:06:34,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 20:06:34,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 20:06:34,192 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 20:06:34,234 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 20:06:34,415 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 20:06:34,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 20:06:34,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 20:06:34,427 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 20:06:34,654 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 20:06:34,654 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 20:06:34,885 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 20:06:34,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:06:34,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776379438] [2023-11-29 20:06:34,886 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 20:06:34,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054126462] [2023-11-29 20:06:34,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054126462] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 20:06:34,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 20:06:34,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 20:06:34,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424401887] [2023-11-29 20:06:34,886 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 20:06:34,887 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 20:06:34,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:06:34,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 20:06:34,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 20:06:34,889 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 265 [2023-11-29 20:06:34,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 283 transitions, 978 flow. Second operand has 8 states, 8 states have (on average 223.875) internal successors, (1791), 8 states have internal predecessors, (1791), 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 20:06:34,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:06:34,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 265 [2023-11-29 20:06:34,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:06:35,172 INFO L124 PetriNetUnfolderBase]: 16/1054 cut-off events. [2023-11-29 20:06:35,173 INFO L125 PetriNetUnfolderBase]: For 256/264 co-relation queries the response was YES. [2023-11-29 20:06:35,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1658 conditions, 1054 events. 16/1054 cut-off events. For 256/264 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 463 event pairs, 8 based on Foata normal form. 0/1037 useless extension candidates. Maximal degree in co-relation 1391. Up to 113 conditions per place. [2023-11-29 20:06:35,175 INFO L140 encePairwiseOnDemand]: 259/265 looper letters, 48 selfloop transitions, 9 changer transitions 2/299 dead transitions. [2023-11-29 20:06:35,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 299 transitions, 1194 flow [2023-11-29 20:06:35,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 20:06:35,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 20:06:35,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2030 transitions. [2023-11-29 20:06:35,178 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8511530398322851 [2023-11-29 20:06:35,178 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2030 transitions. [2023-11-29 20:06:35,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2030 transitions. [2023-11-29 20:06:35,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:06:35,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2030 transitions. [2023-11-29 20:06:35,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 225.55555555555554) internal successors, (2030), 9 states have internal predecessors, (2030), 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 20:06:35,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 265.0) internal successors, (2650), 10 states have internal predecessors, (2650), 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 20:06:35,185 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 265.0) internal successors, (2650), 10 states have internal predecessors, (2650), 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 20:06:35,188 INFO L307 CegarLoopForPetriNet]: 237 programPoint places, 39 predicate places. [2023-11-29 20:06:35,188 INFO L500 AbstractCegarLoop]: Abstraction has has 276 places, 299 transitions, 1194 flow [2023-11-29 20:06:35,188 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 223.875) internal successors, (1791), 8 states have internal predecessors, (1791), 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 20:06:35,188 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:06:35,189 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:06:35,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-29 20:06:35,394 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 20:06:35,395 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 20:06:35,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:06:35,395 INFO L85 PathProgramCache]: Analyzing trace with hash 281550988, now seen corresponding path program 4 times [2023-11-29 20:06:35,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:06:35,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514223363] [2023-11-29 20:06:35,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:06:35,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:06:35,529 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 20:06:35,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [755512490] [2023-11-29 20:06:35,529 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 20:06:35,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 20:06:35,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 20:06:35,530 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 20:06:35,536 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 20:06:36,293 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 20:06:36,293 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 20:06:36,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 3418 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 20:06:36,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 20:06:36,953 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 20:06:36,953 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 20:06:37,673 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 20:06:37,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:06:37,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514223363] [2023-11-29 20:06:37,674 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 20:06:37,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755512490] [2023-11-29 20:06:37,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755512490] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 20:06:37,674 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 20:06:37,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-29 20:06:37,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368349026] [2023-11-29 20:06:37,675 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 20:06:37,675 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 20:06:37,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:06:37,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 20:06:37,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-11-29 20:06:37,679 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 265 [2023-11-29 20:06:37,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 299 transitions, 1194 flow. Second operand has 16 states, 16 states have (on average 224.4375) internal successors, (3591), 16 states have internal predecessors, (3591), 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 20:06:37,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:06:37,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 265 [2023-11-29 20:06:37,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:06:38,507 INFO L124 PetriNetUnfolderBase]: 20/2154 cut-off events. [2023-11-29 20:06:38,508 INFO L125 PetriNetUnfolderBase]: For 708/718 co-relation queries the response was YES. [2023-11-29 20:06:38,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3527 conditions, 2154 events. 20/2154 cut-off events. For 708/718 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 467 event pairs, 8 based on Foata normal form. 0/2133 useless extension candidates. Maximal degree in co-relation 3233. Up to 225 conditions per place. [2023-11-29 20:06:38,511 INFO L140 encePairwiseOnDemand]: 259/265 looper letters, 92 selfloop transitions, 21 changer transitions 2/355 dead transitions. [2023-11-29 20:06:38,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 355 transitions, 1916 flow [2023-11-29 20:06:38,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 20:06:38,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-29 20:06:38,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4716 transitions. [2023-11-29 20:06:38,518 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8474393530997305 [2023-11-29 20:06:38,518 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4716 transitions. [2023-11-29 20:06:38,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4716 transitions. [2023-11-29 20:06:38,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:06:38,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4716 transitions. [2023-11-29 20:06:38,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 224.57142857142858) internal successors, (4716), 21 states have internal predecessors, (4716), 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 20:06:38,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 265.0) internal successors, (5830), 22 states have internal predecessors, (5830), 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 20:06:38,544 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 265.0) internal successors, (5830), 22 states have internal predecessors, (5830), 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 20:06:38,546 INFO L307 CegarLoopForPetriNet]: 237 programPoint places, 59 predicate places. [2023-11-29 20:06:38,546 INFO L500 AbstractCegarLoop]: Abstraction has has 296 places, 355 transitions, 1916 flow [2023-11-29 20:06:38,546 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 224.4375) internal successors, (3591), 16 states have internal predecessors, (3591), 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 20:06:38,546 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:06:38,547 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:06:38,565 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 20:06:38,757 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 20:06:38,758 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 20:06:38,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:06:38,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1630976652, now seen corresponding path program 5 times [2023-11-29 20:06:38,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:06:38,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784990103] [2023-11-29 20:06:38,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:06:38,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:06:39,010 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 20:06:39,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1544756675] [2023-11-29 20:06:39,012 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 20:06:39,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 20:06:39,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 20:06:39,025 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 20:06:39,026 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 20:21:16,421 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 20:21:16,433 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 20:21:17,446 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 20:21:17,622 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 20:21:17,650 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-11-29 20:21:17,652 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 3 remaining) [2023-11-29 20:21:17,652 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 20:21:17,652 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 20:21:17,652 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 1990 with TraceHistMax 49,while AutomatonFreeRefinementEngine was Timeout during CAMEL. [2023-11-29 20:21:17,653 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2023-11-29 20:21:17,653 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-11-29 20:21:17,654 INFO L457 BasicCegarLoop]: Path program histogram: [5, 1, 1] [2023-11-29 20:21:17,657 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 20:21:17,657 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 20:21:17,657 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 20:21:17,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:21:17 BasicIcfg [2023-11-29 20:21:17,663 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 20:21:17,663 INFO L158 Benchmark]: Toolchain (without parser) took 887615.08ms. Allocated memory was 457.2MB in the beginning and 654.3MB in the end (delta: 197.1MB). Free memory was 407.8MB in the beginning and 461.7MB in the end (delta: -53.8MB). Peak memory consumption was 146.2MB. Max. memory is 16.0GB. [2023-11-29 20:21:17,663 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 308.3MB. Free memory is still 253.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-29 20:21:17,663 INFO L158 Benchmark]: CACSL2BoogieTranslator took 599.50ms. Allocated memory is still 457.2MB. Free memory was 407.6MB in the beginning and 374.9MB in the end (delta: 32.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. [2023-11-29 20:21:17,663 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.23ms. Allocated memory is still 457.2MB. Free memory was 374.9MB in the beginning and 372.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-29 20:21:17,664 INFO L158 Benchmark]: Boogie Preprocessor took 47.06ms. Allocated memory is still 457.2MB. Free memory was 372.0MB in the beginning and 369.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-11-29 20:21:17,664 INFO L158 Benchmark]: RCFGBuilder took 669.06ms. Allocated memory is still 457.2MB. Free memory was 369.4MB in the beginning and 406.1MB in the end (delta: -36.7MB). Peak memory consumption was 28.7MB. Max. memory is 16.0GB. [2023-11-29 20:21:17,666 INFO L158 Benchmark]: TraceAbstraction took 886244.90ms. Allocated memory was 457.2MB in the beginning and 654.3MB in the end (delta: 197.1MB). Free memory was 405.1MB in the beginning and 461.7MB in the end (delta: -56.6MB). Peak memory consumption was 140.5MB. Max. memory is 16.0GB. [2023-11-29 20:21:17,667 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 308.3MB. Free memory is still 253.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 599.50ms. Allocated memory is still 457.2MB. Free memory was 407.6MB in the beginning and 374.9MB in the end (delta: 32.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 45.23ms. Allocated memory is still 457.2MB. Free memory was 374.9MB in the beginning and 372.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 47.06ms. Allocated memory is still 457.2MB. Free memory was 372.0MB in the beginning and 369.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * RCFGBuilder took 669.06ms. Allocated memory is still 457.2MB. Free memory was 369.4MB in the beginning and 406.1MB in the end (delta: -36.7MB). Peak memory consumption was 28.7MB. Max. memory is 16.0GB. * TraceAbstraction took 886244.90ms. Allocated memory was 457.2MB in the beginning and 654.3MB in the end (delta: 197.1MB). Free memory was 405.1MB in the beginning and 461.7MB in the end (delta: -56.6MB). Peak memory consumption was 140.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1082]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was analyzing trace of length 1990 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 1990 with TraceHistMax 49,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 318 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: 886.1s, OverallIterations: 7, TraceHistogramMax: 49, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 91 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 91 mSDsluCounter, 91 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 588 IncrementalHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 36 mSDtfsCounter, 588 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3146 GetRequests, 3072 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1916occurred 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, 2.5s InterpolantComputationTime, 1715 NumberOfCodeBlocks, 1397 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 3263 ConstructedInterpolants, 0 QuantifiedInterpolants, 8259 SizeOfPredicates, 16 NumberOfNonLiveVariables, 4733 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