/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 14:57:05,240 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 14:57:05,277 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-12-09 14:57:05,293 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 14:57:05,294 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 14:57:05,294 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 14:57:05,294 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 14:57:05,295 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 14:57:05,295 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 14:57:05,295 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 14:57:05,295 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 14:57:05,296 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 14:57:05,296 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 14:57:05,296 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 14:57:05,297 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 14:57:05,297 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 14:57:05,297 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 14:57:05,297 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 14:57:05,297 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 14:57:05,298 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 14:57:05,298 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 14:57:05,298 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 14:57:05,299 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 14:57:05,299 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 14:57:05,299 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 14:57:05,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:57:05,299 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 14:57:05,300 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 14:57:05,300 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 14:57:05,300 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 14:57:05,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 14:57:05,300 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 14:57:05,301 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 14:57:05,301 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 14:57:05,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 14:57:05,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 14:57:05,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 14:57:05,453 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 14:57:05,454 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 14:57:05,454 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-12-09 14:57:06,581 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 14:57:06,846 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 14:57:06,846 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-12-09 14:57:06,861 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/575092010/afd9447d485e4d3ebebc00a68336396b/FLAG036f20c5b [2023-12-09 14:57:06,875 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/575092010/afd9447d485e4d3ebebc00a68336396b [2023-12-09 14:57:06,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 14:57:06,878 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 14:57:06,879 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 14:57:06,879 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 14:57:06,882 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 14:57:06,883 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:57:06" (1/1) ... [2023-12-09 14:57:06,884 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32de7903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:06, skipping insertion in model container [2023-12-09 14:57:06,884 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:57:06" (1/1) ... [2023-12-09 14:57:06,930 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 14:57:07,064 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/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-12-09 14:57:07,202 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:57:07,213 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 14:57:07,223 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/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-12-09 14:57:07,273 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:57:07,301 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 14:57:07,301 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-09 14:57:07,306 INFO L206 MainTranslator]: Completed translation [2023-12-09 14:57:07,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:07 WrapperNode [2023-12-09 14:57:07,308 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 14:57:07,309 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 14:57:07,310 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 14:57:07,310 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 14:57:07,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:07" (1/1) ... [2023-12-09 14:57:07,334 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:07" (1/1) ... [2023-12-09 14:57:07,351 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2023-12-09 14:57:07,352 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 14:57:07,352 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 14:57:07,352 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 14:57:07,352 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 14:57:07,359 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:07" (1/1) ... [2023-12-09 14:57:07,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:07" (1/1) ... [2023-12-09 14:57:07,368 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:07" (1/1) ... [2023-12-09 14:57:07,368 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:07" (1/1) ... [2023-12-09 14:57:07,372 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:07" (1/1) ... [2023-12-09 14:57:07,373 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:07" (1/1) ... [2023-12-09 14:57:07,374 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:07" (1/1) ... [2023-12-09 14:57:07,375 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:07" (1/1) ... [2023-12-09 14:57:07,376 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 14:57:07,377 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 14:57:07,377 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 14:57:07,377 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 14:57:07,378 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:07" (1/1) ... [2023-12-09 14:57:07,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:57:07,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 14:57:07,403 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-09 14:57:07,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-09 14:57:07,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 14:57:07,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-09 14:57:07,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 14:57:07,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 14:57:07,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 14:57:07,426 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-12-09 14:57:07,426 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-12-09 14:57:07,426 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-12-09 14:57:07,426 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-12-09 14:57:07,426 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-12-09 14:57:07,427 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-12-09 14:57:07,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 14:57:07,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-09 14:57:07,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 14:57:07,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 14:57:07,428 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-09 14:57:07,543 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 14:57:07,546 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 14:57:07,681 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 14:57:07,688 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 14:57:07,688 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-09 14:57:07,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:57:07 BoogieIcfgContainer [2023-12-09 14:57:07,690 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 14:57:07,691 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 14:57:07,692 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 14:57:07,694 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 14:57:07,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:57:06" (1/3) ... [2023-12-09 14:57:07,694 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6415879c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:57:07, skipping insertion in model container [2023-12-09 14:57:07,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:07" (2/3) ... [2023-12-09 14:57:07,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6415879c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:57:07, skipping insertion in model container [2023-12-09 14:57:07,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:57:07" (3/3) ... [2023-12-09 14:57:07,696 INFO L112 eAbstractionObserver]: Analyzing ICFG safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-12-09 14:57:07,708 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 14:57:07,708 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 14:57:07,709 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 14:57:07,797 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-09 14:57:07,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 90 transitions, 192 flow [2023-12-09 14:57:07,856 INFO L124 PetriNetUnfolderBase]: 2/87 cut-off events. [2023-12-09 14:57:07,856 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 14:57:07,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 87 events. 2/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2023-12-09 14:57:07,860 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 90 transitions, 192 flow [2023-12-09 14:57:07,863 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 72 transitions, 153 flow [2023-12-09 14:57:07,870 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 14:57:07,875 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;@6b6716ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 14:57:07,875 INFO L363 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-09 14:57:07,890 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 14:57:07,890 INFO L124 PetriNetUnfolderBase]: 1/71 cut-off events. [2023-12-09 14:57:07,890 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 14:57:07,891 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:07,891 INFO L233 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] [2023-12-09 14:57:07,892 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)] === [2023-12-09 14:57:07,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:07,896 INFO L85 PathProgramCache]: Analyzing trace with hash 417356614, now seen corresponding path program 1 times [2023-12-09 14:57:07,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:07,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734890851] [2023-12-09 14:57:07,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:07,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:08,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:08,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:08,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:08,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734890851] [2023-12-09 14:57:08,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734890851] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:08,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:08,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:08,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417341775] [2023-12-09 14:57:08,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:08,499 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:08,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:08,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:08,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:08,535 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 90 [2023-12-09 14:57:08,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 72 transitions, 153 flow. Second operand has 7 states, 7 states have (on average 69.71428571428571) internal successors, (488), 7 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:08,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:08,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 90 [2023-12-09 14:57:08,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:08,886 INFO L124 PetriNetUnfolderBase]: 132/460 cut-off events. [2023-12-09 14:57:08,887 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-12-09 14:57:08,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 740 conditions, 460 events. 132/460 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2388 event pairs, 31 based on Foata normal form. 18/462 useless extension candidates. Maximal degree in co-relation 708. Up to 82 conditions per place. [2023-12-09 14:57:08,894 INFO L140 encePairwiseOnDemand]: 81/90 looper letters, 23 selfloop transitions, 4 changer transitions 35/117 dead transitions. [2023-12-09 14:57:08,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 117 transitions, 376 flow [2023-12-09 14:57:08,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:57:08,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:57:08,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 952 transitions. [2023-12-09 14:57:08,912 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8136752136752137 [2023-12-09 14:57:08,912 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 952 transitions. [2023-12-09 14:57:08,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 952 transitions. [2023-12-09 14:57:08,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:08,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 952 transitions. [2023-12-09 14:57:08,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 73.23076923076923) internal successors, (952), 13 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:08,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 90.0) internal successors, (1260), 14 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:08,938 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 90.0) internal successors, (1260), 14 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:08,942 INFO L308 CegarLoopForPetriNet]: 81 programPoint places, 12 predicate places. [2023-12-09 14:57:08,942 INFO L500 AbstractCegarLoop]: Abstraction has has 93 places, 117 transitions, 376 flow [2023-12-09 14:57:08,942 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.71428571428571) internal successors, (488), 7 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:08,942 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:08,943 INFO L233 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] [2023-12-09 14:57:08,943 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 14:57:08,944 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)] === [2023-12-09 14:57:08,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:08,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1112256647, now seen corresponding path program 1 times [2023-12-09 14:57:08,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:08,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329158357] [2023-12-09 14:57:08,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:08,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:08,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:09,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:09,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:09,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329158357] [2023-12-09 14:57:09,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329158357] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:09,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:09,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:09,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913605519] [2023-12-09 14:57:09,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:09,257 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:09,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:09,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:09,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:09,258 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 90 [2023-12-09 14:57:09,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 117 transitions, 376 flow. Second operand has 7 states, 7 states have (on average 69.85714285714286) internal successors, (489), 7 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:09,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:09,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 90 [2023-12-09 14:57:09,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:09,529 INFO L124 PetriNetUnfolderBase]: 189/672 cut-off events. [2023-12-09 14:57:09,529 INFO L125 PetriNetUnfolderBase]: For 57/123 co-relation queries the response was YES. [2023-12-09 14:57:09,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1456 conditions, 672 events. 189/672 cut-off events. For 57/123 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 4197 event pairs, 10 based on Foata normal form. 16/677 useless extension candidates. Maximal degree in co-relation 1418. Up to 121 conditions per place. [2023-12-09 14:57:09,532 INFO L140 encePairwiseOnDemand]: 80/90 looper letters, 26 selfloop transitions, 9 changer transitions 122/212 dead transitions. [2023-12-09 14:57:09,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 212 transitions, 1079 flow [2023-12-09 14:57:09,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:57:09,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:57:09,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 948 transitions. [2023-12-09 14:57:09,534 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8102564102564103 [2023-12-09 14:57:09,534 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 948 transitions. [2023-12-09 14:57:09,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 948 transitions. [2023-12-09 14:57:09,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:09,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 948 transitions. [2023-12-09 14:57:09,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 72.92307692307692) internal successors, (948), 13 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:09,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 90.0) internal successors, (1260), 14 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:09,539 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 90.0) internal successors, (1260), 14 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:09,539 INFO L308 CegarLoopForPetriNet]: 81 programPoint places, 24 predicate places. [2023-12-09 14:57:09,539 INFO L500 AbstractCegarLoop]: Abstraction has has 105 places, 212 transitions, 1079 flow [2023-12-09 14:57:09,540 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 69.85714285714286) internal successors, (489), 7 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:09,540 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:09,540 INFO L233 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] [2023-12-09 14:57:09,540 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 14:57:09,540 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)] === [2023-12-09 14:57:09,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:09,541 INFO L85 PathProgramCache]: Analyzing trace with hash -824148666, now seen corresponding path program 1 times [2023-12-09 14:57:09,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:09,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285995312] [2023-12-09 14:57:09,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:09,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:09,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:09,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:09,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285995312] [2023-12-09 14:57:09,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285995312] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:09,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:09,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:09,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518521048] [2023-12-09 14:57:09,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:09,746 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:09,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:09,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:09,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:09,752 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 90 [2023-12-09 14:57:09,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 212 transitions, 1079 flow. Second operand has 7 states, 7 states have (on average 71.71428571428571) internal successors, (502), 7 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:09,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:09,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 90 [2023-12-09 14:57:09,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:10,007 INFO L124 PetriNetUnfolderBase]: 198/887 cut-off events. [2023-12-09 14:57:10,007 INFO L125 PetriNetUnfolderBase]: For 198/349 co-relation queries the response was YES. [2023-12-09 14:57:10,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2212 conditions, 887 events. 198/887 cut-off events. For 198/349 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 6717 event pairs, 5 based on Foata normal form. 32/910 useless extension candidates. Maximal degree in co-relation 2169. Up to 133 conditions per place. [2023-12-09 14:57:10,012 INFO L140 encePairwiseOnDemand]: 81/90 looper letters, 20 selfloop transitions, 8 changer transitions 251/337 dead transitions. [2023-12-09 14:57:10,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 337 transitions, 2372 flow [2023-12-09 14:57:10,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:57:10,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:57:10,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 968 transitions. [2023-12-09 14:57:10,015 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8273504273504273 [2023-12-09 14:57:10,015 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 968 transitions. [2023-12-09 14:57:10,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 968 transitions. [2023-12-09 14:57:10,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:10,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 968 transitions. [2023-12-09 14:57:10,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 74.46153846153847) internal successors, (968), 13 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:10,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 90.0) internal successors, (1260), 14 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:10,021 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 90.0) internal successors, (1260), 14 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:10,023 INFO L308 CegarLoopForPetriNet]: 81 programPoint places, 36 predicate places. [2023-12-09 14:57:10,023 INFO L500 AbstractCegarLoop]: Abstraction has has 117 places, 337 transitions, 2372 flow [2023-12-09 14:57:10,023 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 71.71428571428571) internal successors, (502), 7 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:10,023 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:10,023 INFO L233 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] [2023-12-09 14:57:10,023 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 14:57:10,024 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)] === [2023-12-09 14:57:10,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:10,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1581999957, now seen corresponding path program 1 times [2023-12-09 14:57:10,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:10,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394265545] [2023-12-09 14:57:10,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:10,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:10,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:10,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:10,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:10,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394265545] [2023-12-09 14:57:10,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394265545] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:10,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:10,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 14:57:10,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180796374] [2023-12-09 14:57:10,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:10,153 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 14:57:10,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:10,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 14:57:10,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-09 14:57:10,156 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 90 [2023-12-09 14:57:10,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 337 transitions, 2372 flow. Second operand has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:10,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:10,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 90 [2023-12-09 14:57:10,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:10,393 INFO L124 PetriNetUnfolderBase]: 208/1095 cut-off events. [2023-12-09 14:57:10,393 INFO L125 PetriNetUnfolderBase]: For 452/1145 co-relation queries the response was YES. [2023-12-09 14:57:10,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3074 conditions, 1095 events. 208/1095 cut-off events. For 452/1145 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 9623 event pairs, 0 based on Foata normal form. 27/1113 useless extension candidates. Maximal degree in co-relation 3027. Up to 239 conditions per place. [2023-12-09 14:57:10,398 INFO L140 encePairwiseOnDemand]: 84/90 looper letters, 22 selfloop transitions, 4 changer transitions 301/386 dead transitions. [2023-12-09 14:57:10,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 386 transitions, 3400 flow [2023-12-09 14:57:10,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 14:57:10,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 14:57:10,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 677 transitions. [2023-12-09 14:57:10,401 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8358024691358025 [2023-12-09 14:57:10,401 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 677 transitions. [2023-12-09 14:57:10,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 677 transitions. [2023-12-09 14:57:10,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:10,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 677 transitions. [2023-12-09 14:57:10,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 75.22222222222223) internal successors, (677), 9 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:10,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:10,406 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:10,407 INFO L308 CegarLoopForPetriNet]: 81 programPoint places, 44 predicate places. [2023-12-09 14:57:10,407 INFO L500 AbstractCegarLoop]: Abstraction has has 125 places, 386 transitions, 3400 flow [2023-12-09 14:57:10,409 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:10,409 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:10,409 INFO L233 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] [2023-12-09 14:57:10,409 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 14:57:10,409 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)] === [2023-12-09 14:57:10,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:10,410 INFO L85 PathProgramCache]: Analyzing trace with hash 929880069, now seen corresponding path program 1 times [2023-12-09 14:57:10,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:10,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768505131] [2023-12-09 14:57:10,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:10,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:10,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:10,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:10,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:10,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768505131] [2023-12-09 14:57:10,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768505131] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:10,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:10,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 14:57:10,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705414242] [2023-12-09 14:57:10,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:10,571 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 14:57:10,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:10,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 14:57:10,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-09 14:57:10,573 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 90 [2023-12-09 14:57:10,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 386 transitions, 3400 flow. Second operand has 8 states, 8 states have (on average 68.0) internal successors, (544), 8 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:10,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:10,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 90 [2023-12-09 14:57:10,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:10,989 INFO L124 PetriNetUnfolderBase]: 568/2067 cut-off events. [2023-12-09 14:57:10,990 INFO L125 PetriNetUnfolderBase]: For 2234/3819 co-relation queries the response was YES. [2023-12-09 14:57:10,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7076 conditions, 2067 events. 568/2067 cut-off events. For 2234/3819 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 19488 event pairs, 0 based on Foata normal form. 83/2133 useless extension candidates. Maximal degree in co-relation 7022. Up to 443 conditions per place. [2023-12-09 14:57:10,999 INFO L140 encePairwiseOnDemand]: 79/90 looper letters, 16 selfloop transitions, 6 changer transitions 643/717 dead transitions. [2023-12-09 14:57:10,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 717 transitions, 8007 flow [2023-12-09 14:57:10,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-09 14:57:11,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-12-09 14:57:11,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1204 transitions. [2023-12-09 14:57:11,002 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7869281045751634 [2023-12-09 14:57:11,002 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1204 transitions. [2023-12-09 14:57:11,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1204 transitions. [2023-12-09 14:57:11,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:11,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1204 transitions. [2023-12-09 14:57:11,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 70.82352941176471) internal successors, (1204), 17 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:11,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 90.0) internal successors, (1620), 18 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:11,008 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 90.0) internal successors, (1620), 18 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:11,010 INFO L308 CegarLoopForPetriNet]: 81 programPoint places, 60 predicate places. [2023-12-09 14:57:11,010 INFO L500 AbstractCegarLoop]: Abstraction has has 141 places, 717 transitions, 8007 flow [2023-12-09 14:57:11,010 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 68.0) internal successors, (544), 8 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:11,010 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:11,010 INFO L233 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] [2023-12-09 14:57:11,010 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 14:57:11,011 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)] === [2023-12-09 14:57:11,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:11,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1000503373, now seen corresponding path program 1 times [2023-12-09 14:57:11,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:11,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917289796] [2023-12-09 14:57:11,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:11,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:11,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:11,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:11,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917289796] [2023-12-09 14:57:11,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917289796] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:11,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:11,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 14:57:11,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101163927] [2023-12-09 14:57:11,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:11,114 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 14:57:11,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:11,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 14:57:11,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-09 14:57:11,115 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 90 [2023-12-09 14:57:11,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 717 transitions, 8007 flow. Second operand has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:11,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:11,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 90 [2023-12-09 14:57:11,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:11,779 INFO L124 PetriNetUnfolderBase]: 1729/4530 cut-off events. [2023-12-09 14:57:11,779 INFO L125 PetriNetUnfolderBase]: For 3118/4562 co-relation queries the response was YES. [2023-12-09 14:57:11,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12842 conditions, 4530 events. 1729/4530 cut-off events. For 3118/4562 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 45092 event pairs, 30 based on Foata normal form. 31/4332 useless extension candidates. Maximal degree in co-relation 12784. Up to 1239 conditions per place. [2023-12-09 14:57:11,798 INFO L140 encePairwiseOnDemand]: 80/90 looper letters, 14 selfloop transitions, 5 changer transitions 432/537 dead transitions. [2023-12-09 14:57:11,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 537 transitions, 5717 flow [2023-12-09 14:57:11,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 14:57:11,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 14:57:11,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 760 transitions. [2023-12-09 14:57:11,800 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8444444444444444 [2023-12-09 14:57:11,800 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 760 transitions. [2023-12-09 14:57:11,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 760 transitions. [2023-12-09 14:57:11,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:11,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 760 transitions. [2023-12-09 14:57:11,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 76.0) internal successors, (760), 10 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:11,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 90.0) internal successors, (990), 11 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:11,803 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 90.0) internal successors, (990), 11 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:11,805 INFO L308 CegarLoopForPetriNet]: 81 programPoint places, 69 predicate places. [2023-12-09 14:57:11,805 INFO L500 AbstractCegarLoop]: Abstraction has has 150 places, 537 transitions, 5717 flow [2023-12-09 14:57:11,805 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:11,805 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:11,805 INFO L233 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] [2023-12-09 14:57:11,805 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 14:57:11,806 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)] === [2023-12-09 14:57:11,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:11,806 INFO L85 PathProgramCache]: Analyzing trace with hash -170175790, now seen corresponding path program 1 times [2023-12-09 14:57:11,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:11,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782963968] [2023-12-09 14:57:11,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:11,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:11,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:11,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:11,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:11,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782963968] [2023-12-09 14:57:11,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782963968] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:11,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:11,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 14:57:11,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228099827] [2023-12-09 14:57:11,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:11,931 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 14:57:11,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:11,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 14:57:11,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-09 14:57:11,933 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 90 [2023-12-09 14:57:11,933 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 537 transitions, 5717 flow. Second operand has 7 states, 7 states have (on average 72.85714285714286) internal successors, (510), 7 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:11,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:11,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 90 [2023-12-09 14:57:11,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:12,522 INFO L124 PetriNetUnfolderBase]: 1270/3467 cut-off events. [2023-12-09 14:57:12,523 INFO L125 PetriNetUnfolderBase]: For 2702/3698 co-relation queries the response was YES. [2023-12-09 14:57:12,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10149 conditions, 3467 events. 1270/3467 cut-off events. For 2702/3698 co-relation queries the response was YES. Maximal size of possible extension queue 431. Compared 34011 event pairs, 0 based on Foata normal form. 194/3495 useless extension candidates. Maximal degree in co-relation 10087. Up to 1074 conditions per place. [2023-12-09 14:57:12,540 INFO L140 encePairwiseOnDemand]: 80/90 looper letters, 10 selfloop transitions, 7 changer transitions 276/352 dead transitions. [2023-12-09 14:57:12,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 352 transitions, 3430 flow [2023-12-09 14:57:12,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-09 14:57:12,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-12-09 14:57:12,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 988 transitions. [2023-12-09 14:57:12,542 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8444444444444444 [2023-12-09 14:57:12,543 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 988 transitions. [2023-12-09 14:57:12,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 988 transitions. [2023-12-09 14:57:12,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:12,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 988 transitions. [2023-12-09 14:57:12,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 76.0) internal successors, (988), 13 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:12,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 90.0) internal successors, (1260), 14 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:12,547 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 90.0) internal successors, (1260), 14 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:12,549 INFO L308 CegarLoopForPetriNet]: 81 programPoint places, 78 predicate places. [2023-12-09 14:57:12,549 INFO L500 AbstractCegarLoop]: Abstraction has has 159 places, 352 transitions, 3430 flow [2023-12-09 14:57:12,549 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 72.85714285714286) internal successors, (510), 7 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:12,549 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:12,549 INFO L233 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] [2023-12-09 14:57:12,549 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 14:57:12,550 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)] === [2023-12-09 14:57:12,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:12,550 INFO L85 PathProgramCache]: Analyzing trace with hash 636922415, now seen corresponding path program 1 times [2023-12-09 14:57:12,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:12,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384812746] [2023-12-09 14:57:12,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:12,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:12,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:12,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:12,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:12,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384812746] [2023-12-09 14:57:12,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384812746] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:12,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:12,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 14:57:12,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401059772] [2023-12-09 14:57:12,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:12,778 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 14:57:12,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:12,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 14:57:12,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-09 14:57:12,779 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 90 [2023-12-09 14:57:12,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 352 transitions, 3430 flow. Second operand has 8 states, 8 states have (on average 72.75) internal successors, (582), 8 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:12,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:12,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 90 [2023-12-09 14:57:12,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:13,156 INFO L124 PetriNetUnfolderBase]: 1093/2897 cut-off events. [2023-12-09 14:57:13,156 INFO L125 PetriNetUnfolderBase]: For 2602/4115 co-relation queries the response was YES. [2023-12-09 14:57:13,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9937 conditions, 2897 events. 1093/2897 cut-off events. For 2602/4115 co-relation queries the response was YES. Maximal size of possible extension queue 436. Compared 28392 event pairs, 0 based on Foata normal form. 279/3053 useless extension candidates. Maximal degree in co-relation 9871. Up to 875 conditions per place. [2023-12-09 14:57:13,173 INFO L140 encePairwiseOnDemand]: 80/90 looper letters, 0 selfloop transitions, 0 changer transitions 251/251 dead transitions. [2023-12-09 14:57:13,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 251 transitions, 2410 flow [2023-12-09 14:57:13,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-09 14:57:13,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-12-09 14:57:13,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1200 transitions. [2023-12-09 14:57:13,180 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2023-12-09 14:57:13,180 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1200 transitions. [2023-12-09 14:57:13,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1200 transitions. [2023-12-09 14:57:13,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:13,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1200 transitions. [2023-12-09 14:57:13,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 75.0) internal successors, (1200), 16 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:13,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 90.0) internal successors, (1530), 17 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:13,187 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 90.0) internal successors, (1530), 17 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:13,189 INFO L308 CegarLoopForPetriNet]: 81 programPoint places, 67 predicate places. [2023-12-09 14:57:13,189 INFO L500 AbstractCegarLoop]: Abstraction has has 148 places, 251 transitions, 2410 flow [2023-12-09 14:57:13,190 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 72.75) internal successors, (582), 8 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:13,196 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/safe009_pso.oepc_pso.opt_tso.oepc_tso.opt.i_BEv2_AllErrorsAtOnce [2023-12-09 14:57:13,241 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-12-09 14:57:13,242 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-12-09 14:57:13,242 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-12-09 14:57:13,242 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-12-09 14:57:13,242 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-09 14:57:13,243 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:13,245 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 14:57:13,245 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 14:57:13,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:57:13 BasicIcfg [2023-12-09 14:57:13,251 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 14:57:13,252 INFO L158 Benchmark]: Toolchain (without parser) took 6374.17ms. Allocated memory was 167.8MB in the beginning and 457.2MB in the end (delta: 289.4MB). Free memory was 121.2MB in the beginning and 187.5MB in the end (delta: -66.3MB). Peak memory consumption was 222.0MB. Max. memory is 8.0GB. [2023-12-09 14:57:13,252 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 167.8MB. Free memory was 123.9MB in the beginning and 123.7MB in the end (delta: 151.1kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 14:57:13,252 INFO L158 Benchmark]: CACSL2BoogieTranslator took 429.80ms. Allocated memory is still 167.8MB. Free memory was 120.8MB in the beginning and 100.4MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-09 14:57:13,252 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.36ms. Allocated memory is still 167.8MB. Free memory was 100.4MB in the beginning and 98.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 14:57:13,252 INFO L158 Benchmark]: Boogie Preprocessor took 24.37ms. Allocated memory is still 167.8MB. Free memory was 98.3MB in the beginning and 97.0MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-09 14:57:13,253 INFO L158 Benchmark]: RCFGBuilder took 312.65ms. Allocated memory is still 167.8MB. Free memory was 96.7MB in the beginning and 83.1MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-09 14:57:13,253 INFO L158 Benchmark]: TraceAbstraction took 5559.99ms. Allocated memory was 167.8MB in the beginning and 457.2MB in the end (delta: 289.4MB). Free memory was 82.5MB in the beginning and 187.5MB in the end (delta: -105.0MB). Peak memory consumption was 183.2MB. Max. memory is 8.0GB. [2023-12-09 14:57:13,254 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 167.8MB. Free memory was 123.9MB in the beginning and 123.7MB in the end (delta: 151.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 429.80ms. Allocated memory is still 167.8MB. Free memory was 120.8MB in the beginning and 100.4MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.36ms. Allocated memory is still 167.8MB. Free memory was 100.4MB in the beginning and 98.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.37ms. Allocated memory is still 167.8MB. Free memory was 98.3MB in the beginning and 97.0MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 312.65ms. Allocated memory is still 167.8MB. Free memory was 96.7MB in the beginning and 83.1MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 5559.99ms. Allocated memory was 167.8MB in the beginning and 457.2MB in the end (delta: 289.4MB). Free memory was 82.5MB in the beginning and 187.5MB in the end (delta: -105.0MB). Peak memory consumption was 183.2MB. Max. memory is 8.0GB. * 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, 115 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: 5.4s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 449 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 449 mSDsluCounter, 493 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 375 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 574 IncrementalHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 118 mSDtfsCounter, 574 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 122 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8007occurred 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, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 444 NumberOfCodeBlocks, 444 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 436 ConstructedInterpolants, 0 QuantifiedInterpolants, 1868 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! [2023-12-09 14:57:13,272 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...