/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_93-evilcollapse_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:04:22,406 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:04:22,471 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 15:04:22,496 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:04:22,497 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:04:22,497 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:04:22,498 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:04:22,498 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:04:22,498 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:04:22,501 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:04:22,502 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:04:22,502 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:04:22,502 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:04:22,503 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:04:22,503 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:04:22,503 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:04:22,503 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:04:22,503 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:04:22,503 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:04:22,504 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:04:22,504 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:04:22,504 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:04:22,504 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:04:22,504 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:04:22,505 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:04:22,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:04:22,506 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:04:22,506 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:04:22,506 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:04:22,506 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:04:22,507 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:04:22,507 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:04:22,507 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:04:22,507 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:04:22,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:04:22,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:04:22,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:04:22,724 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:04:22,724 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:04:22,725 INFO L431 ainManager$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 [2023-12-09 15:04:23,676 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:04:23,923 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:04:23,924 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2023-12-09 15:04:23,948 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c196a5c0/bc771afa152141428588e27102493d92/FLAG67332564c [2023-12-09 15:04:23,960 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c196a5c0/bc771afa152141428588e27102493d92 [2023-12-09 15:04:23,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:04:23,963 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:04:23,964 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:04:23,964 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:04:23,966 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:04:23,967 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:04:23" (1/1) ... [2023-12-09 15:04:23,967 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c0b6f83 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 15:04:23,968 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:04:23" (1/1) ... [2023-12-09 15:04:24,003 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:04:24,310 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] [2023-12-09 15:04:24,323 WARN L1590 CHandler]: Possible shadowing of function new [2023-12-09 15:04:24,324 WARN L1590 CHandler]: Possible shadowing of function new [2023-12-09 15:04:24,324 WARN L1590 CHandler]: Possible shadowing of function new [2023-12-09 15:04:24,325 WARN L1590 CHandler]: Possible shadowing of function new [2023-12-09 15:04:24,347 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:04:24,370 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:04:24,399 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] [2023-12-09 15:04:24,408 WARN L1590 CHandler]: Possible shadowing of function new [2023-12-09 15:04:24,408 WARN L1590 CHandler]: Possible shadowing of function new [2023-12-09 15:04:24,409 WARN L1590 CHandler]: Possible shadowing of function new [2023-12-09 15:04:24,409 WARN L1590 CHandler]: Possible shadowing of function new [2023-12-09 15:04:24,433 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:04:24,483 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:04:24,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:24 WrapperNode [2023-12-09 15:04:24,483 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:04:24,485 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:04:24,485 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:04:24,485 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:04:24,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:24" (1/1) ... [2023-12-09 15:04:24,502 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:24" (1/1) ... [2023-12-09 15:04:24,524 INFO L138 Inliner]: procedures = 280, calls = 55, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 243 [2023-12-09 15:04:24,525 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:04:24,525 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:04:24,525 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:04:24,525 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:04:24,531 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:24" (1/1) ... [2023-12-09 15:04:24,532 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:24" (1/1) ... [2023-12-09 15:04:24,541 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:24" (1/1) ... [2023-12-09 15:04:24,541 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:24" (1/1) ... [2023-12-09 15:04:24,553 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:24" (1/1) ... [2023-12-09 15:04:24,556 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:24" (1/1) ... [2023-12-09 15:04:24,557 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:24" (1/1) ... [2023-12-09 15:04:24,559 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:24" (1/1) ... [2023-12-09 15:04:24,561 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:04:24,561 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:04:24,562 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:04:24,562 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:04:24,564 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:24" (1/1) ... [2023-12-09 15:04:24,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:04:24,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:04:24,589 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 15:04:24,608 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 15:04:24,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:04:24,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-09 15:04:24,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:04:24,616 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-09 15:04:24,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:04:24,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:04:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-09 15:04:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-09 15:04:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:04:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-09 15:04:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-12-09 15:04:24,618 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-12-09 15:04:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:04:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:04:24,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:04:24,621 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 15:04:24,742 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:04:24,745 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:04:25,077 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:04:25,119 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:04:25,120 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-12-09 15:04:25,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:04:25 BoogieIcfgContainer [2023-12-09 15:04:25,121 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:04:25,122 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:04:25,122 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:04:25,124 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:04:25,124 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:04:23" (1/3) ... [2023-12-09 15:04:25,125 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3288f209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:04:25, skipping insertion in model container [2023-12-09 15:04:25,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:24" (2/3) ... [2023-12-09 15:04:25,125 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3288f209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:04:25, skipping insertion in model container [2023-12-09 15:04:25,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:04:25" (3/3) ... [2023-12-09 15:04:25,126 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_93-evilcollapse_racefree.i [2023-12-09 15:04:25,137 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:04:25,137 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:04:25,137 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:04:25,180 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-12-09 15:04:25,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 241 places, 265 transitions, 537 flow [2023-12-09 15:04:25,271 INFO L124 PetriNetUnfolderBase]: 29/284 cut-off events. [2023-12-09 15:04:25,271 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-12-09 15:04:25,277 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. [2023-12-09 15:04:25,278 INFO L82 GeneralOperation]: Start removeDead. Operand has 241 places, 265 transitions, 537 flow [2023-12-09 15:04:25,288 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 237 places, 260 transitions, 524 flow [2023-12-09 15:04:25,299 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:04:25,306 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;@ff50702, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:04:25,306 INFO L363 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-12-09 15:04:25,335 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:04:25,335 INFO L124 PetriNetUnfolderBase]: 11/183 cut-off events. [2023-12-09 15:04:25,335 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 15:04:25,335 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:04:25,336 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] [2023-12-09 15:04:25,336 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 15:04:25,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:04:25,339 INFO L85 PathProgramCache]: Analyzing trace with hash 99610333, now seen corresponding path program 1 times [2023-12-09 15:04:25,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:04:25,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213961990] [2023-12-09 15:04:25,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:25,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:04:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:04:25,603 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 15:04:25,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:04:25,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213961990] [2023-12-09 15:04:25,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213961990] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:04:25,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:04:25,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-09 15:04:25,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278530109] [2023-12-09 15:04:25,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:04:25,611 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-09 15:04:25,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:04:25,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-09 15:04:25,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-09 15:04:25,639 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 265 [2023-12-09 15:04:25,643 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) [2023-12-09 15:04:25,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:04:25,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 265 [2023-12-09 15:04:25,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:04:25,746 INFO L124 PetriNetUnfolderBase]: 15/331 cut-off events. [2023-12-09 15:04:25,746 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-12-09 15:04:25,748 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. [2023-12-09 15:04:25,750 INFO L140 encePairwiseOnDemand]: 242/265 looper letters, 26 selfloop transitions, 2 changer transitions 2/246 dead transitions. [2023-12-09 15:04:25,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 246 transitions, 552 flow [2023-12-09 15:04:25,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-09 15:04:25,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-09 15:04:25,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 717 transitions. [2023-12-09 15:04:25,764 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.9018867924528302 [2023-12-09 15:04:25,765 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 717 transitions. [2023-12-09 15:04:25,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 717 transitions. [2023-12-09 15:04:25,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:04:25,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 717 transitions. [2023-12-09 15:04:25,773 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) [2023-12-09 15:04:25,778 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) [2023-12-09 15:04:25,779 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) [2023-12-09 15:04:25,782 INFO L308 CegarLoopForPetriNet]: 237 programPoint places, 1 predicate places. [2023-12-09 15:04:25,782 INFO L500 AbstractCegarLoop]: Abstraction has has 238 places, 246 transitions, 552 flow [2023-12-09 15:04:25,783 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) [2023-12-09 15:04:25,783 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:04:25,783 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] [2023-12-09 15:04:25,784 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:04:25,784 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 15:04:25,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:04:25,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1228408046, now seen corresponding path program 1 times [2023-12-09 15:04:25,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:04:25,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113098571] [2023-12-09 15:04:25,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:25,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:04:25,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:04:25,920 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 15:04:25,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:04:25,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113098571] [2023-12-09 15:04:25,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113098571] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:04:25,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:04:25,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-09 15:04:25,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695810051] [2023-12-09 15:04:25,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:04:25,923 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-09 15:04:25,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:04:25,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-09 15:04:25,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-09 15:04:25,927 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 265 [2023-12-09 15:04:25,928 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) [2023-12-09 15:04:25,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:04:25,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 265 [2023-12-09 15:04:25,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:04:26,019 INFO L124 PetriNetUnfolderBase]: 15/403 cut-off events. [2023-12-09 15:04:26,019 INFO L125 PetriNetUnfolderBase]: For 15/17 co-relation queries the response was YES. [2023-12-09 15:04:26,020 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. [2023-12-09 15:04:26,021 INFO L140 encePairwiseOnDemand]: 262/265 looper letters, 22 selfloop transitions, 2 changer transitions 2/251 dead transitions. [2023-12-09 15:04:26,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 251 transitions, 614 flow [2023-12-09 15:04:26,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-09 15:04:26,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-09 15:04:26,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 698 transitions. [2023-12-09 15:04:26,023 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8779874213836478 [2023-12-09 15:04:26,023 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 698 transitions. [2023-12-09 15:04:26,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 698 transitions. [2023-12-09 15:04:26,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:04:26,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 698 transitions. [2023-12-09 15:04:26,026 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) [2023-12-09 15:04:26,027 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) [2023-12-09 15:04:26,027 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) [2023-12-09 15:04:26,028 INFO L308 CegarLoopForPetriNet]: 237 programPoint places, 3 predicate places. [2023-12-09 15:04:26,028 INFO L500 AbstractCegarLoop]: Abstraction has has 240 places, 251 transitions, 614 flow [2023-12-09 15:04:26,028 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) [2023-12-09 15:04:26,028 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:04:26,030 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:04:26,030 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 15:04:26,030 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 15:04:26,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:04:26,030 INFO L85 PathProgramCache]: Analyzing trace with hash 2049659852, now seen corresponding path program 1 times [2023-12-09 15:04:26,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:04:26,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170164936] [2023-12-09 15:04:26,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:26,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:04:26,065 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-09 15:04:26,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [545391270] [2023-12-09 15:04:26,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:26,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:04:26,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:04:26,070 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 15:04:26,080 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 15:04:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:04:26,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-09 15:04:26,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:04:26,328 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 15:04:26,328 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:04:26,405 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 15:04:26,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:04:26,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170164936] [2023-12-09 15:04:26,405 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-09 15:04:26,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545391270] [2023-12-09 15:04:26,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545391270] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:04:26,406 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-09 15:04:26,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-09 15:04:26,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250725520] [2023-12-09 15:04:26,406 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-09 15:04:26,407 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:04:26,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:04:26,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:04:26,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:04:26,409 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 265 [2023-12-09 15:04:26,411 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) [2023-12-09 15:04:26,411 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:04:26,411 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 265 [2023-12-09 15:04:26,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:04:26,535 INFO L124 PetriNetUnfolderBase]: 15/481 cut-off events. [2023-12-09 15:04:26,535 INFO L125 PetriNetUnfolderBase]: For 50/54 co-relation queries the response was YES. [2023-12-09 15:04:26,537 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. [2023-12-09 15:04:26,538 INFO L140 encePairwiseOnDemand]: 259/265 looper letters, 24 selfloop transitions, 9 changer transitions 2/259 dead transitions. [2023-12-09 15:04:26,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 259 transitions, 712 flow [2023-12-09 15:04:26,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:04:26,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 15:04:26,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2048 transitions. [2023-12-09 15:04:26,541 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8587002096436058 [2023-12-09 15:04:26,541 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2048 transitions. [2023-12-09 15:04:26,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2048 transitions. [2023-12-09 15:04:26,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:04:26,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2048 transitions. [2023-12-09 15:04:26,546 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) [2023-12-09 15:04:26,550 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) [2023-12-09 15:04:26,551 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) [2023-12-09 15:04:26,552 INFO L308 CegarLoopForPetriNet]: 237 programPoint places, 11 predicate places. [2023-12-09 15:04:26,553 INFO L500 AbstractCegarLoop]: Abstraction has has 248 places, 259 transitions, 712 flow [2023-12-09 15:04:26,554 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) [2023-12-09 15:04:26,554 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:04:26,554 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:04:26,568 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 15:04:26,759 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 15:04:26,760 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 15:04:26,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:04:26,760 INFO L85 PathProgramCache]: Analyzing trace with hash 766998796, now seen corresponding path program 2 times [2023-12-09 15:04:26,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:04:26,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369217629] [2023-12-09 15:04:26,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:26,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:04:26,809 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-09 15:04:26,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1234402541] [2023-12-09 15:04:26,809 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-09 15:04:26,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:04:26,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:04:26,810 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 15:04:26,814 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 15:04:27,031 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-09 15:04:27,032 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:04:27,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-09 15:04:27,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:04:27,196 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 15:04:27,198 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:04:27,350 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 15:04:27,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:04:27,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369217629] [2023-12-09 15:04:27,350 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-09 15:04:27,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234402541] [2023-12-09 15:04:27,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234402541] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:04:27,351 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-09 15:04:27,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-09 15:04:27,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040605236] [2023-12-09 15:04:27,351 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-09 15:04:27,356 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-09 15:04:27,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:04:27,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-09 15:04:27,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-12-09 15:04:27,362 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 265 [2023-12-09 15:04:27,365 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) [2023-12-09 15:04:27,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:04:27,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 265 [2023-12-09 15:04:27,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:04:27,606 INFO L124 PetriNetUnfolderBase]: 15/777 cut-off events. [2023-12-09 15:04:27,606 INFO L125 PetriNetUnfolderBase]: For 130/136 co-relation queries the response was YES. [2023-12-09 15:04:27,607 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. [2023-12-09 15:04:27,608 INFO L140 encePairwiseOnDemand]: 259/265 looper letters, 36 selfloop transitions, 21 changer transitions 2/283 dead transitions. [2023-12-09 15:04:27,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 283 transitions, 978 flow [2023-12-09 15:04:27,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-09 15:04:27,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-12-09 15:04:27,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4758 transitions. [2023-12-09 15:04:27,638 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8549865229110513 [2023-12-09 15:04:27,638 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4758 transitions. [2023-12-09 15:04:27,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4758 transitions. [2023-12-09 15:04:27,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:04:27,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4758 transitions. [2023-12-09 15:04:27,648 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) [2023-12-09 15:04:27,654 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) [2023-12-09 15:04:27,655 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) [2023-12-09 15:04:27,656 INFO L308 CegarLoopForPetriNet]: 237 programPoint places, 31 predicate places. [2023-12-09 15:04:27,656 INFO L500 AbstractCegarLoop]: Abstraction has has 268 places, 283 transitions, 978 flow [2023-12-09 15:04:27,657 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) [2023-12-09 15:04:27,657 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:04:27,657 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:04:27,665 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 15:04:27,863 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 15:04:27,863 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 15:04:27,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:04:27,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1414720628, now seen corresponding path program 3 times [2023-12-09 15:04:27,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:04:27,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069032771] [2023-12-09 15:04:27,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:27,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:04:27,911 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-09 15:04:27,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [716099161] [2023-12-09 15:04:27,911 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-09 15:04:27,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:04:27,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:04:27,913 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 15:04:27,915 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 15:04:28,128 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-12-09 15:04:28,128 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:04:28,131 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-09 15:04:28,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:04:28,352 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 15:04:28,352 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:04:28,561 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 15:04:28,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:04:28,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069032771] [2023-12-09 15:04:28,562 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-09 15:04:28,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716099161] [2023-12-09 15:04:28,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716099161] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:04:28,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-09 15:04:28,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-09 15:04:28,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120058081] [2023-12-09 15:04:28,562 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-09 15:04:28,563 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:04:28,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:04:28,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:04:28,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:04:28,565 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 265 [2023-12-09 15:04:28,566 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) [2023-12-09 15:04:28,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:04:28,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 265 [2023-12-09 15:04:28,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:04:28,820 INFO L124 PetriNetUnfolderBase]: 16/1054 cut-off events. [2023-12-09 15:04:28,821 INFO L125 PetriNetUnfolderBase]: For 256/264 co-relation queries the response was YES. [2023-12-09 15:04:28,821 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. [2023-12-09 15:04:28,823 INFO L140 encePairwiseOnDemand]: 259/265 looper letters, 48 selfloop transitions, 9 changer transitions 2/299 dead transitions. [2023-12-09 15:04:28,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 299 transitions, 1194 flow [2023-12-09 15:04:28,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:04:28,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 15:04:28,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2030 transitions. [2023-12-09 15:04:28,826 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8511530398322851 [2023-12-09 15:04:28,826 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2030 transitions. [2023-12-09 15:04:28,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2030 transitions. [2023-12-09 15:04:28,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:04:28,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2030 transitions. [2023-12-09 15:04:28,829 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) [2023-12-09 15:04:28,832 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) [2023-12-09 15:04:28,833 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) [2023-12-09 15:04:28,834 INFO L308 CegarLoopForPetriNet]: 237 programPoint places, 39 predicate places. [2023-12-09 15:04:28,835 INFO L500 AbstractCegarLoop]: Abstraction has has 276 places, 299 transitions, 1194 flow [2023-12-09 15:04:28,836 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) [2023-12-09 15:04:28,836 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:04:28,837 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:04:28,844 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 15:04:29,041 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 15:04:29,042 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 15:04:29,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:04:29,042 INFO L85 PathProgramCache]: Analyzing trace with hash 281550988, now seen corresponding path program 4 times [2023-12-09 15:04:29,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:04:29,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026112009] [2023-12-09 15:04:29,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:29,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:04:29,156 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-09 15:04:29,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1126395371] [2023-12-09 15:04:29,156 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-09 15:04:29,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:04:29,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:04:29,158 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 15:04:29,184 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 15:04:29,939 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-09 15:04:29,939 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-09 15:04:29,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 3418 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-09 15:04:29,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:04:30,685 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 15:04:30,685 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:04:31,408 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 15:04:31,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:04:31,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026112009] [2023-12-09 15:04:31,409 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-09 15:04:31,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126395371] [2023-12-09 15:04:31,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126395371] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:04:31,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-09 15:04:31,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-09 15:04:31,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181623537] [2023-12-09 15:04:31,409 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-09 15:04:31,410 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-09 15:04:31,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:04:31,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-09 15:04:31,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-12-09 15:04:31,413 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 265 [2023-12-09 15:04:31,416 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) [2023-12-09 15:04:31,416 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:04:31,416 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 265 [2023-12-09 15:04:31,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:04:32,291 INFO L124 PetriNetUnfolderBase]: 20/2154 cut-off events. [2023-12-09 15:04:32,292 INFO L125 PetriNetUnfolderBase]: For 708/718 co-relation queries the response was YES. [2023-12-09 15:04:32,293 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. [2023-12-09 15:04:32,296 INFO L140 encePairwiseOnDemand]: 259/265 looper letters, 92 selfloop transitions, 21 changer transitions 2/355 dead transitions. [2023-12-09 15:04:32,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 355 transitions, 1916 flow [2023-12-09 15:04:32,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-09 15:04:32,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-12-09 15:04:32,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4716 transitions. [2023-12-09 15:04:32,303 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8474393530997305 [2023-12-09 15:04:32,303 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4716 transitions. [2023-12-09 15:04:32,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4716 transitions. [2023-12-09 15:04:32,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:04:32,305 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4716 transitions. [2023-12-09 15:04:32,311 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) [2023-12-09 15:04:32,327 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) [2023-12-09 15:04:32,329 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) [2023-12-09 15:04:32,331 INFO L308 CegarLoopForPetriNet]: 237 programPoint places, 59 predicate places. [2023-12-09 15:04:32,331 INFO L500 AbstractCegarLoop]: Abstraction has has 296 places, 355 transitions, 1916 flow [2023-12-09 15:04:32,332 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) [2023-12-09 15:04:32,332 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:04:32,332 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:04:32,351 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 15:04:32,543 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 15:04:32,543 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 15:04:32,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:04:32,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1630976652, now seen corresponding path program 5 times [2023-12-09 15:04:32,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:04:32,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194190828] [2023-12-09 15:04:32,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:32,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:04:32,804 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-09 15:04:32,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [136150864] [2023-12-09 15:04:32,807 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-09 15:04:32,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:04:32,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:04:32,808 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 15:04:32,835 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 15:09:10,826 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 15:09:10,827 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 15:09:11,836 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 15:09:12,032 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 15:09:12,051 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-12-09 15:09:12,052 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 15:09:12,053 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 3 remaining) [2023-12-09 15:09:12,053 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 15:09:12,053 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 1990 with TraceHistMax 49,while AutomatonFreeRefinementEngine was Timeout during CAMEL. [2023-12-09 15:09:12,055 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2023-12-09 15:09:12,055 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-12-09 15:09:12,055 INFO L457 BasicCegarLoop]: Path program histogram: [5, 1, 1] [2023-12-09 15:09:12,058 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:09:12,059 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:09:12,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:09:12 BasicIcfg [2023-12-09 15:09:12,066 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:09:12,067 INFO L158 Benchmark]: Toolchain (without parser) took 288103.41ms. Allocated memory was 235.9MB in the beginning and 431.0MB in the end (delta: 195.0MB). Free memory was 194.4MB in the beginning and 113.3MB in the end (delta: 81.1MB). Peak memory consumption was 277.6MB. Max. memory is 8.0GB. [2023-12-09 15:09:12,068 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 196.1MB. Free memory was 151.2MB in the beginning and 151.1MB in the end (delta: 176.2kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:09:12,068 INFO L158 Benchmark]: CACSL2BoogieTranslator took 519.74ms. Allocated memory is still 235.9MB. Free memory was 193.9MB in the beginning and 162.1MB in the end (delta: 31.8MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2023-12-09 15:09:12,069 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.20ms. Allocated memory is still 235.9MB. Free memory was 162.1MB in the beginning and 159.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-09 15:09:12,069 INFO L158 Benchmark]: Boogie Preprocessor took 35.75ms. Allocated memory is still 235.9MB. Free memory was 159.0MB in the beginning and 156.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:09:12,070 INFO L158 Benchmark]: RCFGBuilder took 559.42ms. Allocated memory is still 235.9MB. Free memory was 156.5MB in the beginning and 189.0MB in the end (delta: -32.5MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-09 15:09:12,070 INFO L158 Benchmark]: TraceAbstraction took 286943.71ms. Allocated memory was 235.9MB in the beginning and 431.0MB in the end (delta: 195.0MB). Free memory was 188.0MB in the beginning and 113.3MB in the end (delta: 74.7MB). Peak memory consumption was 270.3MB. Max. memory is 8.0GB. [2023-12-09 15:09:12,072 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 196.1MB. Free memory was 151.2MB in the beginning and 151.1MB in the end (delta: 176.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 519.74ms. Allocated memory is still 235.9MB. Free memory was 193.9MB in the beginning and 162.1MB in the end (delta: 31.8MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.20ms. Allocated memory is still 235.9MB. Free memory was 162.1MB in the beginning and 159.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.75ms. Allocated memory is still 235.9MB. Free memory was 159.0MB in the beginning and 156.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 559.42ms. Allocated memory is still 235.9MB. Free memory was 156.5MB in the beginning and 189.0MB in the end (delta: -32.5MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 286943.71ms. Allocated memory was 235.9MB in the beginning and 431.0MB in the end (delta: 195.0MB). Free memory was 188.0MB in the beginning and 113.3MB in the end (delta: 74.7MB). Peak memory consumption was 270.3MB. Max. memory is 8.0GB. * 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: 286.8s, 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, 0.4s 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, 2.6s 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