/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/pthread-wmm/safe023_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-29 19:33:07,298 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 19:33:07,356 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 19:33:07,380 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 19:33:07,381 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 19:33:07,381 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 19:33:07,381 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 19:33:07,381 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 19:33:07,382 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 19:33:07,382 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 19:33:07,382 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 19:33:07,382 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 19:33:07,382 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 19:33:07,383 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 19:33:07,383 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 19:33:07,383 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 19:33:07,383 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 19:33:07,383 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 19:33:07,386 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 19:33:07,386 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 19:33:07,389 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 19:33:07,389 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 19:33:07,389 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 19:33:07,390 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-29 19:33:07,390 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 19:33:07,391 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 19:33:07,391 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 19:33:07,392 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 19:33:07,392 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 19:33:07,392 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 19:33:07,393 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 19:33:07,393 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 19:33:07,393 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 19:33:07,393 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-11-29 19:33:07,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 19:33:07,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 19:33:07,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 19:33:07,598 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 19:33:07,600 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 19:33:07,601 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.i [2023-11-29 19:33:08,659 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 19:33:08,819 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 19:33:08,819 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.i [2023-11-29 19:33:08,829 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28c267283/4577fc43b25e4f6fa85e10aaf09ac434/FLAG62b7cc677 [2023-11-29 19:33:08,840 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28c267283/4577fc43b25e4f6fa85e10aaf09ac434 [2023-11-29 19:33:08,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 19:33:08,843 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-29 19:33:08,843 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 19:33:08,843 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 19:33:08,846 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 19:33:08,847 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:33:08" (1/1) ... [2023-11-29 19:33:08,847 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@96d2c75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:08, skipping insertion in model container [2023-11-29 19:33:08,847 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:33:08" (1/1) ... [2023-11-29 19:33:08,871 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 19:33:08,981 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.i[945,958] [2023-11-29 19:33:09,117 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 19:33:09,123 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 19:33:09,132 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.i[945,958] [2023-11-29 19:33:09,164 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 19:33:09,187 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 19:33:09,187 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 19:33:09,191 INFO L206 MainTranslator]: Completed translation [2023-11-29 19:33:09,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:09 WrapperNode [2023-11-29 19:33:09,193 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 19:33:09,194 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 19:33:09,194 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 19:33:09,194 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 19:33:09,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:09" (1/1) ... [2023-11-29 19:33:09,220 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:09" (1/1) ... [2023-11-29 19:33:09,237 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2023-11-29 19:33:09,237 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 19:33:09,238 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 19:33:09,238 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 19:33:09,238 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 19:33:09,244 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:09" (1/1) ... [2023-11-29 19:33:09,244 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:09" (1/1) ... [2023-11-29 19:33:09,256 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:09" (1/1) ... [2023-11-29 19:33:09,257 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:09" (1/1) ... [2023-11-29 19:33:09,259 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:09" (1/1) ... [2023-11-29 19:33:09,260 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:09" (1/1) ... [2023-11-29 19:33:09,261 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:09" (1/1) ... [2023-11-29 19:33:09,262 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:09" (1/1) ... [2023-11-29 19:33:09,263 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 19:33:09,264 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 19:33:09,264 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 19:33:09,264 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 19:33:09,264 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:09" (1/1) ... [2023-11-29 19:33:09,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 19:33:09,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 19:33:09,305 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 19:33:09,322 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 19:33:09,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 19:33:09,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 19:33:09,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 19:33:09,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 19:33:09,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 19:33:09,326 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-29 19:33:09,326 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-29 19:33:09,326 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-29 19:33:09,326 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-29 19:33:09,326 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-29 19:33:09,326 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-29 19:33:09,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 19:33:09,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 19:33:09,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 19:33:09,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 19:33:09,327 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 19:33:09,403 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 19:33:09,405 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 19:33:09,505 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 19:33:09,511 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 19:33:09,511 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 19:33:09,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:33:09 BoogieIcfgContainer [2023-11-29 19:33:09,512 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 19:33:09,514 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 19:33:09,514 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 19:33:09,516 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 19:33:09,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:33:08" (1/3) ... [2023-11-29 19:33:09,516 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41274855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:33:09, skipping insertion in model container [2023-11-29 19:33:09,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:33:09" (2/3) ... [2023-11-29 19:33:09,516 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41274855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:33:09, skipping insertion in model container [2023-11-29 19:33:09,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:33:09" (3/3) ... [2023-11-29 19:33:09,517 INFO L112 eAbstractionObserver]: Analyzing ICFG safe023_tso.i [2023-11-29 19:33:09,527 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 19:33:09,527 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 19:33:09,527 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 19:33:09,555 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 19:33:09,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 93 transitions, 198 flow [2023-11-29 19:33:09,626 INFO L124 PetriNetUnfolderBase]: 2/90 cut-off events. [2023-11-29 19:33:09,627 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 19:33:09,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 90 events. 2/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 56 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2023-11-29 19:33:09,630 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 93 transitions, 198 flow [2023-11-29 19:33:09,632 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 75 transitions, 159 flow [2023-11-29 19:33:09,657 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 19:33:09,668 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;@2a064d32, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 19:33:09,668 INFO L363 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-29 19:33:09,680 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 19:33:09,680 INFO L124 PetriNetUnfolderBase]: 1/74 cut-off events. [2023-11-29 19:33:09,680 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 19:33:09,680 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:33:09,681 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] [2023-11-29 19:33:09,681 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 19:33:09,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:33:09,684 INFO L85 PathProgramCache]: Analyzing trace with hash -510779156, now seen corresponding path program 1 times [2023-11-29 19:33:09,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:33:09,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614098398] [2023-11-29 19:33:09,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:33:09,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:33:09,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:33:10,349 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 19:33:10,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:33:10,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614098398] [2023-11-29 19:33:10,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614098398] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:33:10,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:33:10,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 19:33:10,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141872329] [2023-11-29 19:33:10,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:33:10,357 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 19:33:10,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:33:10,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 19:33:10,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 19:33:10,399 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 93 [2023-11-29 19:33:10,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 75 transitions, 159 flow. Second operand has 6 states, 6 states have (on average 71.16666666666667) internal successors, (427), 6 states have internal predecessors, (427), 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 19:33:10,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:33:10,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 93 [2023-11-29 19:33:10,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:33:10,721 INFO L124 PetriNetUnfolderBase]: 380/1090 cut-off events. [2023-11-29 19:33:10,722 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-11-29 19:33:10,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1770 conditions, 1090 events. 380/1090 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 7376 event pairs, 60 based on Foata normal form. 33/1089 useless extension candidates. Maximal degree in co-relation 1736. Up to 219 conditions per place. [2023-11-29 19:33:10,730 INFO L140 encePairwiseOnDemand]: 80/93 looper letters, 20 selfloop transitions, 8 changer transitions 37/121 dead transitions. [2023-11-29 19:33:10,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 121 transitions, 384 flow [2023-11-29 19:33:10,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 19:33:10,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 19:33:10,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 690 transitions. [2023-11-29 19:33:10,741 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8243727598566308 [2023-11-29 19:33:10,741 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 690 transitions. [2023-11-29 19:33:10,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 690 transitions. [2023-11-29 19:33:10,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:33:10,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 690 transitions. [2023-11-29 19:33:10,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 76.66666666666667) internal successors, (690), 9 states have internal predecessors, (690), 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 19:33:10,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 93.0) internal successors, (930), 10 states have internal predecessors, (930), 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 19:33:10,756 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 93.0) internal successors, (930), 10 states have internal predecessors, (930), 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 19:33:10,762 INFO L307 CegarLoopForPetriNet]: 84 programPoint places, 8 predicate places. [2023-11-29 19:33:10,762 INFO L500 AbstractCegarLoop]: Abstraction has has 92 places, 121 transitions, 384 flow [2023-11-29 19:33:10,763 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.16666666666667) internal successors, (427), 6 states have internal predecessors, (427), 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 19:33:10,763 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:33:10,763 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] [2023-11-29 19:33:10,764 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 19:33:10,764 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 19:33:10,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:33:10,765 INFO L85 PathProgramCache]: Analyzing trace with hash 2014586629, now seen corresponding path program 1 times [2023-11-29 19:33:10,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:33:10,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651582951] [2023-11-29 19:33:10,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:33:10,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:33:10,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:33:11,020 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 19:33:11,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:33:11,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651582951] [2023-11-29 19:33:11,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651582951] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:33:11,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:33:11,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 19:33:11,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057947996] [2023-11-29 19:33:11,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:33:11,023 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 19:33:11,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:33:11,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 19:33:11,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 19:33:11,025 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 93 [2023-11-29 19:33:11,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 121 transitions, 384 flow. Second operand has 7 states, 7 states have (on average 71.0) internal successors, (497), 7 states have internal predecessors, (497), 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 19:33:11,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:33:11,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 93 [2023-11-29 19:33:11,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:33:11,263 INFO L124 PetriNetUnfolderBase]: 351/1032 cut-off events. [2023-11-29 19:33:11,263 INFO L125 PetriNetUnfolderBase]: For 89/511 co-relation queries the response was YES. [2023-11-29 19:33:11,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2302 conditions, 1032 events. 351/1032 cut-off events. For 89/511 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 6838 event pairs, 15 based on Foata normal form. 28/1032 useless extension candidates. Maximal degree in co-relation 2261. Up to 196 conditions per place. [2023-11-29 19:33:11,267 INFO L140 encePairwiseOnDemand]: 84/93 looper letters, 29 selfloop transitions, 6 changer transitions 119/210 dead transitions. [2023-11-29 19:33:11,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 210 transitions, 1057 flow [2023-11-29 19:33:11,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 19:33:11,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 19:33:11,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 975 transitions. [2023-11-29 19:33:11,270 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8064516129032258 [2023-11-29 19:33:11,270 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 975 transitions. [2023-11-29 19:33:11,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 975 transitions. [2023-11-29 19:33:11,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:33:11,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 975 transitions. [2023-11-29 19:33:11,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 75.0) internal successors, (975), 13 states have internal predecessors, (975), 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 19:33:11,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 93.0) internal successors, (1302), 14 states have internal predecessors, (1302), 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 19:33:11,274 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 93.0) internal successors, (1302), 14 states have internal predecessors, (1302), 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 19:33:11,274 INFO L307 CegarLoopForPetriNet]: 84 programPoint places, 20 predicate places. [2023-11-29 19:33:11,275 INFO L500 AbstractCegarLoop]: Abstraction has has 104 places, 210 transitions, 1057 flow [2023-11-29 19:33:11,275 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 71.0) internal successors, (497), 7 states have internal predecessors, (497), 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 19:33:11,275 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:33:11,275 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] [2023-11-29 19:33:11,275 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 19:33:11,275 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 19:33:11,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:33:11,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1404282095, now seen corresponding path program 1 times [2023-11-29 19:33:11,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:33:11,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281858291] [2023-11-29 19:33:11,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:33:11,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:33:11,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:33:11,432 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 19:33:11,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:33:11,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281858291] [2023-11-29 19:33:11,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281858291] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:33:11,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:33:11,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 19:33:11,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088774900] [2023-11-29 19:33:11,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:33:11,433 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 19:33:11,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:33:11,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 19:33:11,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 19:33:11,435 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 93 [2023-11-29 19:33:11,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 210 transitions, 1057 flow. Second operand has 7 states, 7 states have (on average 71.28571428571429) internal successors, (499), 7 states have internal predecessors, (499), 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 19:33:11,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:33:11,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 93 [2023-11-29 19:33:11,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:33:11,678 INFO L124 PetriNetUnfolderBase]: 384/1121 cut-off events. [2023-11-29 19:33:11,678 INFO L125 PetriNetUnfolderBase]: For 235/946 co-relation queries the response was YES. [2023-11-29 19:33:11,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3228 conditions, 1121 events. 384/1121 cut-off events. For 235/946 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 7639 event pairs, 7 based on Foata normal form. 18/1121 useless extension candidates. Maximal degree in co-relation 3180. Up to 258 conditions per place. [2023-11-29 19:33:11,681 INFO L140 encePairwiseOnDemand]: 82/93 looper letters, 30 selfloop transitions, 10 changer transitions 223/319 dead transitions. [2023-11-29 19:33:11,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 319 transitions, 2237 flow [2023-11-29 19:33:11,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 19:33:11,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 19:33:11,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 976 transitions. [2023-11-29 19:33:11,683 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8072787427626137 [2023-11-29 19:33:11,683 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 976 transitions. [2023-11-29 19:33:11,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 976 transitions. [2023-11-29 19:33:11,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:33:11,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 976 transitions. [2023-11-29 19:33:11,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 75.07692307692308) internal successors, (976), 13 states have internal predecessors, (976), 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 19:33:11,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 93.0) internal successors, (1302), 14 states have internal predecessors, (1302), 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 19:33:11,687 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 93.0) internal successors, (1302), 14 states have internal predecessors, (1302), 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 19:33:11,688 INFO L307 CegarLoopForPetriNet]: 84 programPoint places, 32 predicate places. [2023-11-29 19:33:11,688 INFO L500 AbstractCegarLoop]: Abstraction has has 116 places, 319 transitions, 2237 flow [2023-11-29 19:33:11,688 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 71.28571428571429) internal successors, (499), 7 states have internal predecessors, (499), 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 19:33:11,688 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:33:11,688 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] [2023-11-29 19:33:11,688 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 19:33:11,688 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 19:33:11,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:33:11,689 INFO L85 PathProgramCache]: Analyzing trace with hash -972251593, now seen corresponding path program 1 times [2023-11-29 19:33:11,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:33:11,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865105693] [2023-11-29 19:33:11,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:33:11,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:33:11,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:33:11,818 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 19:33:11,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:33:11,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865105693] [2023-11-29 19:33:11,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865105693] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:33:11,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:33:11,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 19:33:11,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049859392] [2023-11-29 19:33:11,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:33:11,819 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 19:33:11,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:33:11,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 19:33:11,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 19:33:11,820 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 93 [2023-11-29 19:33:11,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 319 transitions, 2237 flow. Second operand has 7 states, 7 states have (on average 69.42857142857143) internal successors, (486), 7 states have internal predecessors, (486), 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 19:33:11,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:33:11,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 93 [2023-11-29 19:33:11,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:33:12,210 INFO L124 PetriNetUnfolderBase]: 1017/2599 cut-off events. [2023-11-29 19:33:12,210 INFO L125 PetriNetUnfolderBase]: For 1683/5928 co-relation queries the response was YES. [2023-11-29 19:33:12,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8577 conditions, 2599 events. 1017/2599 cut-off events. For 1683/5928 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 21140 event pairs, 3 based on Foata normal form. 37/2603 useless extension candidates. Maximal degree in co-relation 8521. Up to 634 conditions per place. [2023-11-29 19:33:12,219 INFO L140 encePairwiseOnDemand]: 79/93 looper letters, 45 selfloop transitions, 17 changer transitions 620/736 dead transitions. [2023-11-29 19:33:12,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 736 transitions, 6907 flow [2023-11-29 19:33:12,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 19:33:12,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-29 19:33:12,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1263 transitions. [2023-11-29 19:33:12,221 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7988614800759013 [2023-11-29 19:33:12,221 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1263 transitions. [2023-11-29 19:33:12,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1263 transitions. [2023-11-29 19:33:12,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:33:12,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1263 transitions. [2023-11-29 19:33:12,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 74.29411764705883) internal successors, (1263), 17 states have internal predecessors, (1263), 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 19:33:12,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 93.0) internal successors, (1674), 18 states have internal predecessors, (1674), 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 19:33:12,226 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 93.0) internal successors, (1674), 18 states have internal predecessors, (1674), 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 19:33:12,227 INFO L307 CegarLoopForPetriNet]: 84 programPoint places, 48 predicate places. [2023-11-29 19:33:12,227 INFO L500 AbstractCegarLoop]: Abstraction has has 132 places, 736 transitions, 6907 flow [2023-11-29 19:33:12,227 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.42857142857143) internal successors, (486), 7 states have internal predecessors, (486), 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 19:33:12,227 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:33:12,227 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] [2023-11-29 19:33:12,227 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 19:33:12,227 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 19:33:12,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:33:12,228 INFO L85 PathProgramCache]: Analyzing trace with hash -2064225338, now seen corresponding path program 1 times [2023-11-29 19:33:12,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:33:12,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863508817] [2023-11-29 19:33:12,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:33:12,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:33:12,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:33:12,330 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 19:33:12,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:33:12,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863508817] [2023-11-29 19:33:12,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863508817] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:33:12,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:33:12,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 19:33:12,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298625906] [2023-11-29 19:33:12,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:33:12,331 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 19:33:12,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:33:12,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 19:33:12,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 19:33:12,332 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 93 [2023-11-29 19:33:12,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 736 transitions, 6907 flow. Second operand has 7 states, 7 states have (on average 75.71428571428571) internal successors, (530), 7 states have internal predecessors, (530), 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 19:33:12,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:33:12,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 93 [2023-11-29 19:33:12,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:33:12,682 INFO L124 PetriNetUnfolderBase]: 1115/2914 cut-off events. [2023-11-29 19:33:12,682 INFO L125 PetriNetUnfolderBase]: For 3333/18084 co-relation queries the response was YES. [2023-11-29 19:33:12,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10752 conditions, 2914 events. 1115/2914 cut-off events. For 3333/18084 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 24858 event pairs, 3 based on Foata normal form. 52/2926 useless extension candidates. Maximal degree in co-relation 10691. Up to 738 conditions per place. [2023-11-29 19:33:12,694 INFO L140 encePairwiseOnDemand]: 85/93 looper letters, 21 selfloop transitions, 6 changer transitions 692/786 dead transitions. [2023-11-29 19:33:12,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 786 transitions, 8089 flow [2023-11-29 19:33:12,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 19:33:12,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 19:33:12,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 999 transitions. [2023-11-29 19:33:12,696 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.826302729528536 [2023-11-29 19:33:12,696 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 999 transitions. [2023-11-29 19:33:12,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 999 transitions. [2023-11-29 19:33:12,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:33:12,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 999 transitions. [2023-11-29 19:33:12,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 76.84615384615384) internal successors, (999), 13 states have internal predecessors, (999), 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 19:33:12,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 93.0) internal successors, (1302), 14 states have internal predecessors, (1302), 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 19:33:12,700 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 93.0) internal successors, (1302), 14 states have internal predecessors, (1302), 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 19:33:12,700 INFO L307 CegarLoopForPetriNet]: 84 programPoint places, 60 predicate places. [2023-11-29 19:33:12,700 INFO L500 AbstractCegarLoop]: Abstraction has has 144 places, 786 transitions, 8089 flow [2023-11-29 19:33:12,700 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.71428571428571) internal successors, (530), 7 states have internal predecessors, (530), 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 19:33:12,701 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:33:12,701 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] [2023-11-29 19:33:12,701 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 19:33:12,701 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 19:33:12,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:33:12,701 INFO L85 PathProgramCache]: Analyzing trace with hash -140595140, now seen corresponding path program 1 times [2023-11-29 19:33:12,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:33:12,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612862063] [2023-11-29 19:33:12,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:33:12,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:33:12,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:33:12,791 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 19:33:12,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:33:12,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612862063] [2023-11-29 19:33:12,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612862063] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:33:12,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:33:12,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 19:33:12,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642172752] [2023-11-29 19:33:12,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:33:12,792 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 19:33:12,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:33:12,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 19:33:12,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 19:33:12,793 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 93 [2023-11-29 19:33:12,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 786 transitions, 8089 flow. Second operand has 6 states, 6 states have (on average 76.0) internal successors, (456), 6 states have internal predecessors, (456), 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 19:33:12,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:33:12,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 93 [2023-11-29 19:33:12,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:33:13,218 INFO L124 PetriNetUnfolderBase]: 1596/4270 cut-off events. [2023-11-29 19:33:13,218 INFO L125 PetriNetUnfolderBase]: For 3148/4127 co-relation queries the response was YES. [2023-11-29 19:33:13,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12700 conditions, 4270 events. 1596/4270 cut-off events. For 3148/4127 co-relation queries the response was YES. Maximal size of possible extension queue 355. Compared 41156 event pairs, 27 based on Foata normal form. 41/4020 useless extension candidates. Maximal degree in co-relation 12635. Up to 1018 conditions per place. [2023-11-29 19:33:13,238 INFO L140 encePairwiseOnDemand]: 83/93 looper letters, 44 selfloop transitions, 17 changer transitions 345/574 dead transitions. [2023-11-29 19:33:13,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 574 transitions, 5706 flow [2023-11-29 19:33:13,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 19:33:13,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-29 19:33:13,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 790 transitions. [2023-11-29 19:33:13,240 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8494623655913979 [2023-11-29 19:33:13,240 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 790 transitions. [2023-11-29 19:33:13,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 790 transitions. [2023-11-29 19:33:13,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:33:13,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 790 transitions. [2023-11-29 19:33:13,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.0) internal successors, (790), 10 states have internal predecessors, (790), 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 19:33:13,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 93.0) internal successors, (1023), 11 states have internal predecessors, (1023), 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 19:33:13,243 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 93.0) internal successors, (1023), 11 states have internal predecessors, (1023), 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 19:33:13,244 INFO L307 CegarLoopForPetriNet]: 84 programPoint places, 69 predicate places. [2023-11-29 19:33:13,244 INFO L500 AbstractCegarLoop]: Abstraction has has 153 places, 574 transitions, 5706 flow [2023-11-29 19:33:13,244 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.0) internal successors, (456), 6 states have internal predecessors, (456), 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 19:33:13,244 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:33:13,244 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] [2023-11-29 19:33:13,244 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 19:33:13,245 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 19:33:13,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:33:13,245 INFO L85 PathProgramCache]: Analyzing trace with hash -736611411, now seen corresponding path program 1 times [2023-11-29 19:33:13,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:33:13,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632268837] [2023-11-29 19:33:13,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:33:13,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:33:13,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:33:13,333 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 19:33:13,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:33:13,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632268837] [2023-11-29 19:33:13,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632268837] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:33:13,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:33:13,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 19:33:13,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855819200] [2023-11-29 19:33:13,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:33:13,334 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 19:33:13,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:33:13,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 19:33:13,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 19:33:13,335 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 93 [2023-11-29 19:33:13,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 574 transitions, 5706 flow. Second operand has 7 states, 7 states have (on average 75.85714285714286) internal successors, (531), 7 states have internal predecessors, (531), 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 19:33:13,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:33:13,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 93 [2023-11-29 19:33:13,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:33:13,661 INFO L124 PetriNetUnfolderBase]: 880/2585 cut-off events. [2023-11-29 19:33:13,662 INFO L125 PetriNetUnfolderBase]: For 2184/3477 co-relation queries the response was YES. [2023-11-29 19:33:13,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7676 conditions, 2585 events. 880/2585 cut-off events. For 2184/3477 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 24291 event pairs, 2 based on Foata normal form. 255/2674 useless extension candidates. Maximal degree in co-relation 7607. Up to 700 conditions per place. [2023-11-29 19:33:13,672 INFO L140 encePairwiseOnDemand]: 83/93 looper letters, 39 selfloop transitions, 44 changer transitions 168/331 dead transitions. [2023-11-29 19:33:13,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 331 transitions, 2956 flow [2023-11-29 19:33:13,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 19:33:13,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-29 19:33:13,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1027 transitions. [2023-11-29 19:33:13,675 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8494623655913979 [2023-11-29 19:33:13,675 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1027 transitions. [2023-11-29 19:33:13,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1027 transitions. [2023-11-29 19:33:13,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:33:13,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1027 transitions. [2023-11-29 19:33:13,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 79.0) internal successors, (1027), 13 states have internal predecessors, (1027), 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 19:33:13,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 93.0) internal successors, (1302), 14 states have internal predecessors, (1302), 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 19:33:13,679 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 93.0) internal successors, (1302), 14 states have internal predecessors, (1302), 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 19:33:13,679 INFO L307 CegarLoopForPetriNet]: 84 programPoint places, 81 predicate places. [2023-11-29 19:33:13,679 INFO L500 AbstractCegarLoop]: Abstraction has has 165 places, 331 transitions, 2956 flow [2023-11-29 19:33:13,680 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.85714285714286) internal successors, (531), 7 states have internal predecessors, (531), 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 19:33:13,680 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:33:13,680 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] [2023-11-29 19:33:13,680 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 19:33:13,680 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 19:33:13,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:33:13,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1372311316, now seen corresponding path program 1 times [2023-11-29 19:33:13,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:33:13,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955701065] [2023-11-29 19:33:13,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:33:13,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:33:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:33:13,791 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 19:33:13,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:33:13,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955701065] [2023-11-29 19:33:13,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955701065] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:33:13,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:33:13,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 19:33:13,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604774254] [2023-11-29 19:33:13,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:33:13,792 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 19:33:13,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:33:13,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 19:33:13,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 19:33:13,793 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 93 [2023-11-29 19:33:13,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 331 transitions, 2956 flow. Second operand has 8 states, 8 states have (on average 75.75) internal successors, (606), 8 states have internal predecessors, (606), 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 19:33:13,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:33:13,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 93 [2023-11-29 19:33:13,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:33:14,078 INFO L124 PetriNetUnfolderBase]: 742/2191 cut-off events. [2023-11-29 19:33:14,078 INFO L125 PetriNetUnfolderBase]: For 3229/5013 co-relation queries the response was YES. [2023-11-29 19:33:14,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7486 conditions, 2191 events. 742/2191 cut-off events. For 3229/5013 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 21260 event pairs, 3 based on Foata normal form. 350/2407 useless extension candidates. Maximal degree in co-relation 7413. Up to 560 conditions per place. [2023-11-29 19:33:14,088 INFO L140 encePairwiseOnDemand]: 83/93 looper letters, 0 selfloop transitions, 0 changer transitions 237/237 dead transitions. [2023-11-29 19:33:14,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 237 transitions, 2078 flow [2023-11-29 19:33:14,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 19:33:14,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-29 19:33:14,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1248 transitions. [2023-11-29 19:33:14,090 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8387096774193549 [2023-11-29 19:33:14,090 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1248 transitions. [2023-11-29 19:33:14,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1248 transitions. [2023-11-29 19:33:14,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:33:14,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1248 transitions. [2023-11-29 19:33:14,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 78.0) internal successors, (1248), 16 states have internal predecessors, (1248), 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 19:33:14,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 93.0) internal successors, (1581), 17 states have internal predecessors, (1581), 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 19:33:14,095 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 93.0) internal successors, (1581), 17 states have internal predecessors, (1581), 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 19:33:14,095 INFO L307 CegarLoopForPetriNet]: 84 programPoint places, 64 predicate places. [2023-11-29 19:33:14,096 INFO L500 AbstractCegarLoop]: Abstraction has has 148 places, 237 transitions, 2078 flow [2023-11-29 19:33:14,096 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 75.75) internal successors, (606), 8 states have internal predecessors, (606), 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 19:33:14,099 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/safe023_tso.i_BEv2_AllErrorsAtOnce [2023-11-29 19:33:14,128 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-11-29 19:33:14,128 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-11-29 19:33:14,128 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-11-29 19:33:14,128 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-11-29 19:33:14,129 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 19:33:14,129 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 19:33:14,131 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 19:33:14,131 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 19:33:14,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:33:14 BasicIcfg [2023-11-29 19:33:14,135 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 19:33:14,135 INFO L158 Benchmark]: Toolchain (without parser) took 5292.70ms. Allocated memory was 327.2MB in the beginning and 706.7MB in the end (delta: 379.6MB). Free memory was 285.3MB in the beginning and 403.0MB in the end (delta: -117.7MB). Peak memory consumption was 264.3MB. Max. memory is 16.0GB. [2023-11-29 19:33:14,135 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 327.2MB. Free memory is still 283.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-29 19:33:14,136 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.89ms. Allocated memory is still 327.2MB. Free memory was 285.3MB in the beginning and 263.8MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-11-29 19:33:14,136 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.41ms. Allocated memory is still 327.2MB. Free memory was 263.8MB in the beginning and 261.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-29 19:33:14,136 INFO L158 Benchmark]: Boogie Preprocessor took 25.29ms. Allocated memory is still 327.2MB. Free memory was 261.7MB in the beginning and 260.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-29 19:33:14,136 INFO L158 Benchmark]: RCFGBuilder took 248.99ms. Allocated memory is still 327.2MB. Free memory was 260.4MB in the beginning and 246.1MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-11-29 19:33:14,136 INFO L158 Benchmark]: TraceAbstraction took 4621.12ms. Allocated memory was 327.2MB in the beginning and 706.7MB in the end (delta: 379.6MB). Free memory was 245.3MB in the beginning and 403.0MB in the end (delta: -157.6MB). Peak memory consumption was 224.5MB. Max. memory is 16.0GB. [2023-11-29 19:33:14,137 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 327.2MB. Free memory is still 283.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 349.89ms. Allocated memory is still 327.2MB. Free memory was 285.3MB in the beginning and 263.8MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 43.41ms. Allocated memory is still 327.2MB. Free memory was 263.8MB in the beginning and 261.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 25.29ms. Allocated memory is still 327.2MB. Free memory was 261.7MB in the beginning and 260.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 248.99ms. Allocated memory is still 327.2MB. Free memory was 260.4MB in the beginning and 246.1MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 4621.12ms. Allocated memory was 327.2MB in the beginning and 706.7MB in the end (delta: 379.6MB). Free memory was 245.3MB in the beginning and 403.0MB in the end (delta: -157.6MB). Peak memory consumption was 224.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: 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 7 procedures, 120 locations, 4 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: 4.5s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 492 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 492 mSDsluCounter, 541 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 409 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 576 IncrementalHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 132 mSDtfsCounter, 576 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8089occurred in iteration=5, InterpolantAutomatonStates: 104, 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, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 463 NumberOfCodeBlocks, 463 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 455 ConstructedInterpolants, 0 QuantifiedInterpolants, 2187 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 19:33:14,150 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...