/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/weaver/chl-collitem-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-29 20:35:01,387 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 20:35:01,438 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 20:35:01,452 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 20:35:01,453 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 20:35:01,453 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 20:35:01,453 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 20:35:01,454 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 20:35:01,454 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 20:35:01,454 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 20:35:01,454 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 20:35:01,455 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 20:35:01,455 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 20:35:01,455 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 20:35:01,455 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 20:35:01,456 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 20:35:01,456 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 20:35:01,456 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 20:35:01,456 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 20:35:01,456 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 20:35:01,457 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 20:35:01,468 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 20:35:01,468 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 20:35:01,468 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-29 20:35:01,469 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 20:35:01,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 20:35:01,469 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 20:35:01,469 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 20:35:01,469 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 20:35:01,470 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 20:35:01,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 20:35:01,470 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 20:35:01,470 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 20:35:01,470 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-11-29 20:35:01,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 20:35:01,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 20:35:01,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 20:35:01,676 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 20:35:01,676 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 20:35:01,677 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c [2023-11-29 20:35:02,849 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 20:35:03,052 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 20:35:03,053 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c [2023-11-29 20:35:03,084 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9f4a6bc3/3a7ca6c2ffb04d6db565321b2c2306b9/FLAG78a934ef8 [2023-11-29 20:35:03,108 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9f4a6bc3/3a7ca6c2ffb04d6db565321b2c2306b9 [2023-11-29 20:35:03,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 20:35:03,111 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-29 20:35:03,113 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 20:35:03,113 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 20:35:03,116 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 20:35:03,117 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:35:03" (1/1) ... [2023-11-29 20:35:03,117 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@404171fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:35:03, skipping insertion in model container [2023-11-29 20:35:03,118 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:35:03" (1/1) ... [2023-11-29 20:35:03,145 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 20:35:03,364 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c[3012,3025] [2023-11-29 20:35:03,373 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 20:35:03,381 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 20:35:03,408 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-collitem-symm.wvr.c[3012,3025] [2023-11-29 20:35:03,411 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 20:35:03,416 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 20:35:03,416 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 20:35:03,423 INFO L206 MainTranslator]: Completed translation [2023-11-29 20:35:03,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:35:03 WrapperNode [2023-11-29 20:35:03,424 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 20:35:03,425 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 20:35:03,425 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 20:35:03,425 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 20:35:03,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:35:03" (1/1) ... [2023-11-29 20:35:03,448 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:35:03" (1/1) ... [2023-11-29 20:35:03,484 INFO L138 Inliner]: procedures = 22, calls = 35, calls flagged for inlining = 15, calls inlined = 29, statements flattened = 263 [2023-11-29 20:35:03,485 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 20:35:03,485 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 20:35:03,485 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 20:35:03,485 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 20:35:03,492 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:35:03" (1/1) ... [2023-11-29 20:35:03,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:35:03" (1/1) ... [2023-11-29 20:35:03,504 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:35:03" (1/1) ... [2023-11-29 20:35:03,504 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:35:03" (1/1) ... [2023-11-29 20:35:03,512 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:35:03" (1/1) ... [2023-11-29 20:35:03,514 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:35:03" (1/1) ... [2023-11-29 20:35:03,515 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:35:03" (1/1) ... [2023-11-29 20:35:03,517 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:35:03" (1/1) ... [2023-11-29 20:35:03,519 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 20:35:03,519 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 20:35:03,520 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 20:35:03,520 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 20:35:03,532 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:35:03" (1/1) ... [2023-11-29 20:35:03,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 20:35:03,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 20:35:03,564 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 20:35:03,584 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 20:35:03,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 20:35:03,588 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-29 20:35:03,589 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-29 20:35:03,589 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-29 20:35:03,589 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-29 20:35:03,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 20:35:03,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 20:35:03,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 20:35:03,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 20:35:03,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 20:35:03,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 20:35:03,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 20:35:03,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 20:35:03,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 20:35:03,591 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 20:35:03,681 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 20:35:03,682 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 20:35:04,002 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 20:35:04,369 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 20:35:04,369 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 20:35:04,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:35:04 BoogieIcfgContainer [2023-11-29 20:35:04,370 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 20:35:04,372 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 20:35:04,372 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 20:35:04,374 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 20:35:04,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:35:03" (1/3) ... [2023-11-29 20:35:04,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c862331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:35:04, skipping insertion in model container [2023-11-29 20:35:04,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:35:03" (2/3) ... [2023-11-29 20:35:04,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c862331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:35:04, skipping insertion in model container [2023-11-29 20:35:04,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:35:04" (3/3) ... [2023-11-29 20:35:04,376 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-symm.wvr.c [2023-11-29 20:35:04,388 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 20:35:04,389 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 20:35:04,389 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 20:35:04,457 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-29 20:35:04,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 122 transitions, 258 flow [2023-11-29 20:35:04,549 INFO L124 PetriNetUnfolderBase]: 3/120 cut-off events. [2023-11-29 20:35:04,550 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-29 20:35:04,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 120 events. 3/120 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2023-11-29 20:35:04,555 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 122 transitions, 258 flow [2023-11-29 20:35:04,559 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 115 places, 111 transitions, 234 flow [2023-11-29 20:35:04,573 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 20:35:04,579 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;@47e26abe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 20:35:04,579 INFO L363 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-29 20:35:04,623 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 20:35:04,624 INFO L124 PetriNetUnfolderBase]: 3/110 cut-off events. [2023-11-29 20:35:04,655 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-29 20:35:04,656 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:35:04,656 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:35:04,657 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:35:04,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:35:04,666 INFO L85 PathProgramCache]: Analyzing trace with hash 2061380334, now seen corresponding path program 1 times [2023-11-29 20:35:04,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:35:04,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772468612] [2023-11-29 20:35:04,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:35:04,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:35:04,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:35:07,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:35:07,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:35:07,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772468612] [2023-11-29 20:35:07,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772468612] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:35:07,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:35:07,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 20:35:07,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775173254] [2023-11-29 20:35:07,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:35:07,724 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 20:35:07,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:35:07,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 20:35:07,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-29 20:35:07,753 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 122 [2023-11-29 20:35:07,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 111 transitions, 234 flow. Second operand has 12 states, 12 states have (on average 74.66666666666667) internal successors, (896), 12 states have internal predecessors, (896), 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 20:35:07,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:35:07,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 122 [2023-11-29 20:35:07,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:35:08,786 INFO L124 PetriNetUnfolderBase]: 2/147 cut-off events. [2023-11-29 20:35:08,786 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-11-29 20:35:08,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235 conditions, 147 events. 2/147 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 128 event pairs, 0 based on Foata normal form. 6/148 useless extension candidates. Maximal degree in co-relation 40. Up to 25 conditions per place. [2023-11-29 20:35:08,789 INFO L140 encePairwiseOnDemand]: 105/122 looper letters, 43 selfloop transitions, 1 changer transitions 25/130 dead transitions. [2023-11-29 20:35:08,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 130 transitions, 419 flow [2023-11-29 20:35:08,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 20:35:08,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-29 20:35:08,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1141 transitions. [2023-11-29 20:35:08,804 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6234972677595628 [2023-11-29 20:35:08,804 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1141 transitions. [2023-11-29 20:35:08,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1141 transitions. [2023-11-29 20:35:08,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:35:08,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1141 transitions. [2023-11-29 20:35:08,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 76.06666666666666) internal successors, (1141), 15 states have internal predecessors, (1141), 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 20:35:08,818 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 122.0) internal successors, (1952), 16 states have internal predecessors, (1952), 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 20:35:08,819 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 122.0) internal successors, (1952), 16 states have internal predecessors, (1952), 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 20:35:08,822 INFO L307 CegarLoopForPetriNet]: 115 programPoint places, 14 predicate places. [2023-11-29 20:35:08,822 INFO L500 AbstractCegarLoop]: Abstraction has has 129 places, 130 transitions, 419 flow [2023-11-29 20:35:08,823 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 74.66666666666667) internal successors, (896), 12 states have internal predecessors, (896), 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 20:35:08,823 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 20:35:08,823 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 20:35:08,823 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 20:35:08,823 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 20:35:08,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 20:35:08,824 INFO L85 PathProgramCache]: Analyzing trace with hash 2141888686, now seen corresponding path program 2 times [2023-11-29 20:35:08,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 20:35:08,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681353464] [2023-11-29 20:35:08,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 20:35:08,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 20:35:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 20:35:10,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 20:35:10,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 20:35:10,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681353464] [2023-11-29 20:35:10,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681353464] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 20:35:10,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 20:35:10,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 20:35:10,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103784423] [2023-11-29 20:35:10,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 20:35:10,913 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 20:35:10,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 20:35:10,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 20:35:10,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-29 20:35:10,915 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 122 [2023-11-29 20:35:10,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 130 transitions, 419 flow. Second operand has 12 states, 12 states have (on average 74.66666666666667) internal successors, (896), 12 states have internal predecessors, (896), 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 20:35:10,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 20:35:10,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 122 [2023-11-29 20:35:10,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 20:35:12,451 INFO L124 PetriNetUnfolderBase]: 2/141 cut-off events. [2023-11-29 20:35:12,451 INFO L125 PetriNetUnfolderBase]: For 51/53 co-relation queries the response was YES. [2023-11-29 20:35:12,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 141 events. 2/141 cut-off events. For 51/53 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 124 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 46. Up to 27 conditions per place. [2023-11-29 20:35:12,452 INFO L140 encePairwiseOnDemand]: 108/122 looper letters, 0 selfloop transitions, 0 changer transitions 128/128 dead transitions. [2023-11-29 20:35:12,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 128 transitions, 552 flow [2023-11-29 20:35:12,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 20:35:12,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-29 20:35:12,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1132 transitions. [2023-11-29 20:35:12,455 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6185792349726776 [2023-11-29 20:35:12,455 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1132 transitions. [2023-11-29 20:35:12,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1132 transitions. [2023-11-29 20:35:12,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 20:35:12,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1132 transitions. [2023-11-29 20:35:12,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 75.46666666666667) internal successors, (1132), 15 states have internal predecessors, (1132), 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 20:35:12,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 122.0) internal successors, (1952), 16 states have internal predecessors, (1952), 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 20:35:12,461 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 122.0) internal successors, (1952), 16 states have internal predecessors, (1952), 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 20:35:12,461 INFO L307 CegarLoopForPetriNet]: 115 programPoint places, 24 predicate places. [2023-11-29 20:35:12,461 INFO L500 AbstractCegarLoop]: Abstraction has has 139 places, 128 transitions, 552 flow [2023-11-29 20:35:12,462 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 74.66666666666667) internal successors, (896), 12 states have internal predecessors, (896), 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 20:35:12,468 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/chl-collitem-symm.wvr.c_BEv2_AllErrorsAtOnce [2023-11-29 20:35:12,516 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-11-29 20:35:12,517 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-11-29 20:35:12,517 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-11-29 20:35:12,517 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 20:35:12,517 INFO L457 BasicCegarLoop]: Path program histogram: [2] [2023-11-29 20:35:12,520 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 20:35:12,520 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 20:35:12,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:35:12 BasicIcfg [2023-11-29 20:35:12,525 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 20:35:12,525 INFO L158 Benchmark]: Toolchain (without parser) took 9413.79ms. Allocated memory was 354.4MB in the beginning and 778.0MB in the end (delta: 423.6MB). Free memory was 301.8MB in the beginning and 649.7MB in the end (delta: -348.0MB). Peak memory consumption was 76.4MB. Max. memory is 16.0GB. [2023-11-29 20:35:12,525 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 354.4MB. Free memory is still 304.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-29 20:35:12,526 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.99ms. Allocated memory is still 354.4MB. Free memory was 301.8MB in the beginning and 290.2MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-11-29 20:35:12,526 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.45ms. Allocated memory is still 354.4MB. Free memory was 290.2MB in the beginning and 287.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-29 20:35:12,526 INFO L158 Benchmark]: Boogie Preprocessor took 33.80ms. Allocated memory is still 354.4MB. Free memory was 287.2MB in the beginning and 286.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-29 20:35:12,527 INFO L158 Benchmark]: RCFGBuilder took 850.99ms. Allocated memory is still 354.4MB. Free memory was 286.0MB in the beginning and 199.2MB in the end (delta: 86.8MB). Peak memory consumption was 86.0MB. Max. memory is 16.0GB. [2023-11-29 20:35:12,527 INFO L158 Benchmark]: TraceAbstraction took 8152.85ms. Allocated memory was 354.4MB in the beginning and 778.0MB in the end (delta: 423.6MB). Free memory was 198.7MB in the beginning and 649.7MB in the end (delta: -451.1MB). There was no memory consumed. Max. memory is 16.0GB. [2023-11-29 20:35:12,529 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 354.4MB. Free memory is still 304.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 311.99ms. Allocated memory is still 354.4MB. Free memory was 301.8MB in the beginning and 290.2MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 59.45ms. Allocated memory is still 354.4MB. Free memory was 290.2MB in the beginning and 287.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 33.80ms. Allocated memory is still 354.4MB. Free memory was 287.2MB in the beginning and 286.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 850.99ms. Allocated memory is still 354.4MB. Free memory was 286.0MB in the beginning and 199.2MB in the end (delta: 86.8MB). Peak memory consumption was 86.0MB. Max. memory is 16.0GB. * TraceAbstraction took 8152.85ms. Allocated memory was 354.4MB in the beginning and 778.0MB in the end (delta: 423.6MB). Free memory was 198.7MB in the beginning and 649.7MB in the end (delta: -451.1MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 87]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 132 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 113 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 113 mSDsluCounter, 327 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 255 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 336 IncrementalHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 72 mSDtfsCounter, 336 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=552occurred in iteration=2, InterpolantAutomatonStates: 30, 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: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 210 NumberOfCodeBlocks, 210 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 208 ConstructedInterpolants, 0 QuantifiedInterpolants, 2538 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-29 20:35:12,556 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 Received shutdown request...