/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-29 19:49:57,177 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 19:49:57,237 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 19:49:57,259 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 19:49:57,260 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 19:49:57,261 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 19:49:57,261 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 19:49:57,261 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 19:49:57,261 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 19:49:57,264 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 19:49:57,265 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 19:49:57,265 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 19:49:57,265 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 19:49:57,266 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 19:49:57,266 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 19:49:57,266 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 19:49:57,266 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 19:49:57,266 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 19:49:57,266 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 19:49:57,266 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 19:49:57,267 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 19:49:57,267 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 19:49:57,267 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 19:49:57,267 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-29 19:49:57,268 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 19:49:57,268 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 19:49:57,268 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 19:49:57,268 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 19:49:57,268 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 19:49:57,268 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 19:49:57,269 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 19:49:57,269 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 19:49:57,269 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 19:49:57,269 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-11-29 19:49:57,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 19:49:57,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 19:49:57,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 19:49:57,448 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 19:49:57,448 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 19:49:57,448 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i [2023-11-29 19:49:58,391 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 19:49:58,593 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 19:49:58,594 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i [2023-11-29 19:49:58,604 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2aee76f46/a3cff3eaf72d41d69703bc721891277d/FLAG9847f337c [2023-11-29 19:49:58,612 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2aee76f46/a3cff3eaf72d41d69703bc721891277d [2023-11-29 19:49:58,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 19:49:58,614 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-29 19:49:58,615 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 19:49:58,615 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 19:49:58,618 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 19:49:58,618 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:49:58" (1/1) ... [2023-11-29 19:49:58,619 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50c4af72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:49:58, skipping insertion in model container [2023-11-29 19:49:58,619 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:49:58" (1/1) ... [2023-11-29 19:49:58,648 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 19:49:58,741 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i[1086,1099] [2023-11-29 19:49:58,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 19:49:58,840 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 19:49:58,847 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i[1086,1099] [2023-11-29 19:49:58,862 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 19:49:58,885 INFO L206 MainTranslator]: Completed translation [2023-11-29 19:49:58,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:49:58 WrapperNode [2023-11-29 19:49:58,886 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 19:49:58,886 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 19:49:58,887 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 19:49:58,887 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 19:49:58,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:49:58" (1/1) ... [2023-11-29 19:49:58,899 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:49:58" (1/1) ... [2023-11-29 19:49:58,911 INFO L138 Inliner]: procedures = 163, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 81 [2023-11-29 19:49:58,911 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 19:49:58,911 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 19:49:58,912 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 19:49:58,912 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 19:49:58,916 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:49:58" (1/1) ... [2023-11-29 19:49:58,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:49:58" (1/1) ... [2023-11-29 19:49:58,918 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:49:58" (1/1) ... [2023-11-29 19:49:58,918 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:49:58" (1/1) ... [2023-11-29 19:49:58,921 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:49:58" (1/1) ... [2023-11-29 19:49:58,922 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:49:58" (1/1) ... [2023-11-29 19:49:58,923 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:49:58" (1/1) ... [2023-11-29 19:49:58,924 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:49:58" (1/1) ... [2023-11-29 19:49:58,925 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 19:49:58,926 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 19:49:58,926 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 19:49:58,926 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 19:49:58,926 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:49:58" (1/1) ... [2023-11-29 19:49:58,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 19:49:58,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 19:49:58,953 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 19:49:58,957 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 19:49:58,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 19:49:58,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 19:49:58,983 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 19:49:58,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 19:49:58,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 19:49:58,984 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-29 19:49:58,984 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-29 19:49:58,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 19:49:58,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 19:49:58,984 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 19:49:58,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 19:49:58,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 19:49:58,985 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 19:49:59,059 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 19:49:59,060 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 19:49:59,185 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 19:49:59,199 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 19:49:59,199 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 19:49:59,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:49:59 BoogieIcfgContainer [2023-11-29 19:49:59,204 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 19:49:59,205 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 19:49:59,205 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 19:49:59,207 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 19:49:59,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:49:58" (1/3) ... [2023-11-29 19:49:59,208 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c968c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:49:59, skipping insertion in model container [2023-11-29 19:49:59,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:49:58" (2/3) ... [2023-11-29 19:49:59,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c968c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:49:59, skipping insertion in model container [2023-11-29 19:49:59,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:49:59" (3/3) ... [2023-11-29 19:49:59,210 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_25-struct_nr_true.i [2023-11-29 19:49:59,221 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 19:49:59,222 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-29 19:49:59,222 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 19:49:59,266 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-29 19:49:59,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 94 transitions, 195 flow [2023-11-29 19:49:59,336 INFO L124 PetriNetUnfolderBase]: 4/93 cut-off events. [2023-11-29 19:49:59,336 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 19:49:59,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 93 events. 4/93 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 85 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2023-11-29 19:49:59,340 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 94 transitions, 195 flow [2023-11-29 19:49:59,342 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 85 transitions, 173 flow [2023-11-29 19:49:59,348 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 19:49:59,352 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;@157ccb83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 19:49:59,352 INFO L363 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-29 19:49:59,360 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 19:49:59,360 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2023-11-29 19:49:59,361 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 19:49:59,361 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:49:59,361 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] [2023-11-29 19:49:59,361 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 19:49:59,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:49:59,365 INFO L85 PathProgramCache]: Analyzing trace with hash -999802293, now seen corresponding path program 1 times [2023-11-29 19:49:59,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:49:59,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474867511] [2023-11-29 19:49:59,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:49:59,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:49:59,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:49:59,600 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 19:49:59,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:49:59,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474867511] [2023-11-29 19:49:59,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474867511] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:49:59,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:49:59,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 19:49:59,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327511752] [2023-11-29 19:49:59,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:49:59,608 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 19:49:59,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:49:59,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 19:49:59,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 19:49:59,630 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 94 [2023-11-29 19:49:59,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 85 transitions, 173 flow. Second operand has 5 states, 5 states have (on average 58.0) internal successors, (290), 5 states have internal predecessors, (290), 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 19:49:59,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:49:59,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 94 [2023-11-29 19:49:59,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:49:59,771 INFO L124 PetriNetUnfolderBase]: 78/345 cut-off events. [2023-11-29 19:49:59,771 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 19:49:59,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 345 events. 78/345 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1630 event pairs, 40 based on Foata normal form. 31/353 useless extension candidates. Maximal degree in co-relation 493. Up to 151 conditions per place. [2023-11-29 19:49:59,775 INFO L140 encePairwiseOnDemand]: 81/94 looper letters, 28 selfloop transitions, 9 changer transitions 2/87 dead transitions. [2023-11-29 19:49:59,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 87 transitions, 255 flow [2023-11-29 19:49:59,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 19:49:59,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 19:49:59,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 388 transitions. [2023-11-29 19:49:59,795 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6879432624113475 [2023-11-29 19:49:59,796 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 388 transitions. [2023-11-29 19:49:59,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 388 transitions. [2023-11-29 19:49:59,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:49:59,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 388 transitions. [2023-11-29 19:49:59,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 64.66666666666667) internal successors, (388), 6 states have internal predecessors, (388), 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 19:49:59,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 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 19:49:59,809 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 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 19:49:59,812 INFO L307 CegarLoopForPetriNet]: 85 programPoint places, -1 predicate places. [2023-11-29 19:49:59,812 INFO L500 AbstractCegarLoop]: Abstraction has has 84 places, 87 transitions, 255 flow [2023-11-29 19:49:59,812 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 58.0) internal successors, (290), 5 states have internal predecessors, (290), 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 19:49:59,812 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:49:59,812 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] [2023-11-29 19:49:59,812 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 19:49:59,813 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 19:49:59,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:49:59,813 INFO L85 PathProgramCache]: Analyzing trace with hash 167574261, now seen corresponding path program 1 times [2023-11-29 19:49:59,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:49:59,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818364923] [2023-11-29 19:49:59,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:49:59,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:49:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:50:00,016 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 19:50:00,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:50:00,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818364923] [2023-11-29 19:50:00,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818364923] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:50:00,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:50:00,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 19:50:00,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557086159] [2023-11-29 19:50:00,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:50:00,017 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 19:50:00,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:50:00,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 19:50:00,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 19:50:00,019 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2023-11-29 19:50:00,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 87 transitions, 255 flow. Second operand has 6 states, 6 states have (on average 56.666666666666664) internal successors, (340), 6 states have internal predecessors, (340), 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 19:50:00,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:50:00,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2023-11-29 19:50:00,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:50:00,286 INFO L124 PetriNetUnfolderBase]: 269/949 cut-off events. [2023-11-29 19:50:00,286 INFO L125 PetriNetUnfolderBase]: For 176/192 co-relation queries the response was YES. [2023-11-29 19:50:00,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2046 conditions, 949 events. 269/949 cut-off events. For 176/192 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 6061 event pairs, 141 based on Foata normal form. 0/891 useless extension candidates. Maximal degree in co-relation 2002. Up to 428 conditions per place. [2023-11-29 19:50:00,292 INFO L140 encePairwiseOnDemand]: 80/94 looper letters, 76 selfloop transitions, 23 changer transitions 11/155 dead transitions. [2023-11-29 19:50:00,292 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 155 transitions, 709 flow [2023-11-29 19:50:00,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 19:50:00,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-29 19:50:00,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 703 transitions. [2023-11-29 19:50:00,294 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6798839458413927 [2023-11-29 19:50:00,294 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 703 transitions. [2023-11-29 19:50:00,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 703 transitions. [2023-11-29 19:50:00,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:50:00,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 703 transitions. [2023-11-29 19:50:00,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 63.90909090909091) internal successors, (703), 11 states have internal predecessors, (703), 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 19:50:00,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 94.0) internal successors, (1128), 12 states have internal predecessors, (1128), 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 19:50:00,298 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 94.0) internal successors, (1128), 12 states have internal predecessors, (1128), 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 19:50:00,298 INFO L307 CegarLoopForPetriNet]: 85 programPoint places, 9 predicate places. [2023-11-29 19:50:00,298 INFO L500 AbstractCegarLoop]: Abstraction has has 94 places, 155 transitions, 709 flow [2023-11-29 19:50:00,299 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.666666666666664) internal successors, (340), 6 states have internal predecessors, (340), 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 19:50:00,299 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:50:00,299 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] [2023-11-29 19:50:00,299 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 19:50:00,299 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 19:50:00,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:50:00,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1436548631, now seen corresponding path program 1 times [2023-11-29 19:50:00,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:50:00,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276545629] [2023-11-29 19:50:00,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:50:00,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:50:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:50:00,422 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 19:50:00,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:50:00,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276545629] [2023-11-29 19:50:00,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276545629] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:50:00,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:50:00,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 19:50:00,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134148675] [2023-11-29 19:50:00,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:50:00,424 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 19:50:00,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:50:00,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 19:50:00,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 19:50:00,426 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 94 [2023-11-29 19:50:00,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 155 transitions, 709 flow. Second operand has 7 states, 7 states have (on average 56.42857142857143) internal successors, (395), 7 states have internal predecessors, (395), 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 19:50:00,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:50:00,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 94 [2023-11-29 19:50:00,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:50:00,654 INFO L124 PetriNetUnfolderBase]: 372/1263 cut-off events. [2023-11-29 19:50:00,655 INFO L125 PetriNetUnfolderBase]: For 588/721 co-relation queries the response was YES. [2023-11-29 19:50:00,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3467 conditions, 1263 events. 372/1263 cut-off events. For 588/721 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 8873 event pairs, 114 based on Foata normal form. 17/1215 useless extension candidates. Maximal degree in co-relation 3413. Up to 607 conditions per place. [2023-11-29 19:50:00,665 INFO L140 encePairwiseOnDemand]: 77/94 looper letters, 89 selfloop transitions, 49 changer transitions 37/240 dead transitions. [2023-11-29 19:50:00,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 240 transitions, 1541 flow [2023-11-29 19:50:00,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 19:50:00,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-29 19:50:00,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 848 transitions. [2023-11-29 19:50:00,668 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6443768996960486 [2023-11-29 19:50:00,668 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 848 transitions. [2023-11-29 19:50:00,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 848 transitions. [2023-11-29 19:50:00,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:50:00,669 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 848 transitions. [2023-11-29 19:50:00,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 60.57142857142857) internal successors, (848), 14 states have internal predecessors, (848), 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 19:50:00,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 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 19:50:00,673 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 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 19:50:00,674 INFO L307 CegarLoopForPetriNet]: 85 programPoint places, 22 predicate places. [2023-11-29 19:50:00,674 INFO L500 AbstractCegarLoop]: Abstraction has has 107 places, 240 transitions, 1541 flow [2023-11-29 19:50:00,674 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 56.42857142857143) internal successors, (395), 7 states have internal predecessors, (395), 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 19:50:00,674 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:50:00,674 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] [2023-11-29 19:50:00,675 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 19:50:00,675 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 19:50:00,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:50:00,675 INFO L85 PathProgramCache]: Analyzing trace with hash 892093992, now seen corresponding path program 1 times [2023-11-29 19:50:00,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:50:00,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989346628] [2023-11-29 19:50:00,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:50:00,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:50:00,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:50:00,769 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 19:50:00,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:50:00,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989346628] [2023-11-29 19:50:00,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989346628] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:50:00,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:50:00,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 19:50:00,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958955851] [2023-11-29 19:50:00,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:50:00,771 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 19:50:00,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:50:00,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 19:50:00,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 19:50:00,771 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 94 [2023-11-29 19:50:00,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 240 transitions, 1541 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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 19:50:00,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:50:00,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 94 [2023-11-29 19:50:00,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:50:00,799 INFO L124 PetriNetUnfolderBase]: 7/138 cut-off events. [2023-11-29 19:50:00,799 INFO L125 PetriNetUnfolderBase]: For 180/180 co-relation queries the response was YES. [2023-11-29 19:50:00,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 138 events. 7/138 cut-off events. For 180/180 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 212 event pairs, 2 based on Foata normal form. 29/162 useless extension candidates. Maximal degree in co-relation 288. Up to 41 conditions per place. [2023-11-29 19:50:00,800 INFO L140 encePairwiseOnDemand]: 90/94 looper letters, 7 selfloop transitions, 6 changer transitions 11/107 dead transitions. [2023-11-29 19:50:00,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 107 transitions, 545 flow [2023-11-29 19:50:00,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 19:50:00,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 19:50:00,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 235 transitions. [2023-11-29 19:50:00,801 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2023-11-29 19:50:00,801 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 235 transitions. [2023-11-29 19:50:00,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 235 transitions. [2023-11-29 19:50:00,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:50:00,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 235 transitions. [2023-11-29 19:50:00,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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 19:50:00,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 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 19:50:00,803 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 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 19:50:00,804 INFO L307 CegarLoopForPetriNet]: 85 programPoint places, 19 predicate places. [2023-11-29 19:50:00,804 INFO L500 AbstractCegarLoop]: Abstraction has has 104 places, 107 transitions, 545 flow [2023-11-29 19:50:00,804 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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 19:50:00,804 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:50:00,804 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] [2023-11-29 19:50:00,804 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 19:50:00,805 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 19:50:00,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:50:00,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1973087172, now seen corresponding path program 1 times [2023-11-29 19:50:00,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:50:00,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600908874] [2023-11-29 19:50:00,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:50:00,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:50:00,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:50:00,868 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 19:50:00,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:50:00,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600908874] [2023-11-29 19:50:00,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600908874] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:50:00,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:50:00,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 19:50:00,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707730461] [2023-11-29 19:50:00,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:50:00,870 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 19:50:00,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:50:00,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 19:50:00,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 19:50:00,872 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 94 [2023-11-29 19:50:00,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 107 transitions, 545 flow. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 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 19:50:00,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:50:00,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 94 [2023-11-29 19:50:00,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:50:00,926 INFO L124 PetriNetUnfolderBase]: 7/134 cut-off events. [2023-11-29 19:50:00,927 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2023-11-29 19:50:00,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 404 conditions, 134 events. 7/134 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 196 event pairs, 2 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 338. Up to 44 conditions per place. [2023-11-29 19:50:00,927 INFO L140 encePairwiseOnDemand]: 85/94 looper letters, 29 selfloop transitions, 8 changer transitions 18/104 dead transitions. [2023-11-29 19:50:00,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 104 transitions, 639 flow [2023-11-29 19:50:00,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 19:50:00,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 19:50:00,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 365 transitions. [2023-11-29 19:50:00,929 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6471631205673759 [2023-11-29 19:50:00,929 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 365 transitions. [2023-11-29 19:50:00,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 365 transitions. [2023-11-29 19:50:00,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:50:00,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 365 transitions. [2023-11-29 19:50:00,930 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 60.833333333333336) internal successors, (365), 6 states have internal predecessors, (365), 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 19:50:00,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 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 19:50:00,932 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 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 19:50:00,933 INFO L307 CegarLoopForPetriNet]: 85 programPoint places, 22 predicate places. [2023-11-29 19:50:00,934 INFO L500 AbstractCegarLoop]: Abstraction has has 107 places, 104 transitions, 639 flow [2023-11-29 19:50:00,934 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 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 19:50:00,934 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:50:00,934 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] [2023-11-29 19:50:00,934 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 19:50:00,934 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 19:50:00,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:50:00,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1770166035, now seen corresponding path program 1 times [2023-11-29 19:50:00,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:50:00,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666925307] [2023-11-29 19:50:00,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:50:00,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:50:00,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:50:01,091 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 19:50:01,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:50:01,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666925307] [2023-11-29 19:50:01,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666925307] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:50:01,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:50:01,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 19:50:01,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104572312] [2023-11-29 19:50:01,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:50:01,096 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 19:50:01,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:50:01,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 19:50:01,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 19:50:01,097 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 94 [2023-11-29 19:50:01,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 104 transitions, 639 flow. Second operand has 9 states, 9 states have (on average 53.22222222222222) internal successors, (479), 9 states have internal predecessors, (479), 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 19:50:01,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:50:01,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 94 [2023-11-29 19:50:01,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:50:01,249 INFO L124 PetriNetUnfolderBase]: 9/134 cut-off events. [2023-11-29 19:50:01,250 INFO L125 PetriNetUnfolderBase]: For 179/181 co-relation queries the response was YES. [2023-11-29 19:50:01,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 480 conditions, 134 events. 9/134 cut-off events. For 179/181 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 195 event pairs, 1 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 409. Up to 43 conditions per place. [2023-11-29 19:50:01,250 INFO L140 encePairwiseOnDemand]: 77/94 looper letters, 14 selfloop transitions, 13 changer transitions 46/108 dead transitions. [2023-11-29 19:50:01,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 108 transitions, 779 flow [2023-11-29 19:50:01,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 19:50:01,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-29 19:50:01,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 964 transitions. [2023-11-29 19:50:01,253 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5697399527186762 [2023-11-29 19:50:01,253 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 964 transitions. [2023-11-29 19:50:01,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 964 transitions. [2023-11-29 19:50:01,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:50:01,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 964 transitions. [2023-11-29 19:50:01,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 53.55555555555556) internal successors, (964), 18 states have internal predecessors, (964), 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 19:50:01,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 94.0) internal successors, (1786), 19 states have internal predecessors, (1786), 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 19:50:01,259 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 94.0) internal successors, (1786), 19 states have internal predecessors, (1786), 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 19:50:01,261 INFO L307 CegarLoopForPetriNet]: 85 programPoint places, 37 predicate places. [2023-11-29 19:50:01,262 INFO L500 AbstractCegarLoop]: Abstraction has has 122 places, 108 transitions, 779 flow [2023-11-29 19:50:01,262 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 53.22222222222222) internal successors, (479), 9 states have internal predecessors, (479), 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 19:50:01,262 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:50:01,262 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 19:50:01,263 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 19:50:01,263 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 19:50:01,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:50:01,263 INFO L85 PathProgramCache]: Analyzing trace with hash 999317431, now seen corresponding path program 1 times [2023-11-29 19:50:01,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:50:01,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002961964] [2023-11-29 19:50:01,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:50:01,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:50:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:50:01,405 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 19:50:01,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:50:01,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002961964] [2023-11-29 19:50:01,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002961964] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:50:01,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:50:01,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 19:50:01,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435183206] [2023-11-29 19:50:01,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:50:01,409 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 19:50:01,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:50:01,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 19:50:01,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 19:50:01,411 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 94 [2023-11-29 19:50:01,411 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 108 transitions, 779 flow. Second operand has 8 states, 8 states have (on average 55.125) internal successors, (441), 8 states have internal predecessors, (441), 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 19:50:01,411 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:50:01,411 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 94 [2023-11-29 19:50:01,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:50:01,588 INFO L124 PetriNetUnfolderBase]: 14/137 cut-off events. [2023-11-29 19:50:01,589 INFO L125 PetriNetUnfolderBase]: For 272/276 co-relation queries the response was YES. [2023-11-29 19:50:01,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 569 conditions, 137 events. 14/137 cut-off events. For 272/276 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 205 event pairs, 1 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 488. Up to 43 conditions per place. [2023-11-29 19:50:01,589 INFO L140 encePairwiseOnDemand]: 77/94 looper letters, 0 selfloop transitions, 0 changer transitions 108/108 dead transitions. [2023-11-29 19:50:01,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 108 transitions, 899 flow [2023-11-29 19:50:01,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 19:50:01,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-29 19:50:01,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 941 transitions. [2023-11-29 19:50:01,592 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.5888610763454318 [2023-11-29 19:50:01,592 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 941 transitions. [2023-11-29 19:50:01,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 941 transitions. [2023-11-29 19:50:01,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:50:01,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 941 transitions. [2023-11-29 19:50:01,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 55.35294117647059) internal successors, (941), 17 states have internal predecessors, (941), 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 19:50:01,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 94.0) internal successors, (1692), 18 states have internal predecessors, (1692), 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 19:50:01,598 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 94.0) internal successors, (1692), 18 states have internal predecessors, (1692), 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 19:50:01,598 INFO L307 CegarLoopForPetriNet]: 85 programPoint places, 51 predicate places. [2023-11-29 19:50:01,599 INFO L500 AbstractCegarLoop]: Abstraction has has 136 places, 108 transitions, 899 flow [2023-11-29 19:50:01,599 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 55.125) internal successors, (441), 8 states have internal predecessors, (441), 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 19:50:01,606 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/13-privatized_25-struct_nr_true.i_BEv2_AllErrorsAtOnce [2023-11-29 19:50:01,638 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-11-29 19:50:01,638 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-11-29 19:50:01,639 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-11-29 19:50:01,639 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2023-11-29 19:50:01,639 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2023-11-29 19:50:01,639 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-11-29 19:50:01,639 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-11-29 19:50:01,639 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 19:50:01,639 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-29 19:50:01,645 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 19:50:01,645 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 19:50:01,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:50:01 BasicIcfg [2023-11-29 19:50:01,655 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 19:50:01,656 INFO L158 Benchmark]: Toolchain (without parser) took 3041.27ms. Allocated memory is still 520.1MB. Free memory was 479.6MB in the beginning and 215.9MB in the end (delta: 263.7MB). Peak memory consumption was 265.8MB. Max. memory is 16.0GB. [2023-11-29 19:50:01,656 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 339.7MB. Free memory is still 292.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-29 19:50:01,656 INFO L158 Benchmark]: CACSL2BoogieTranslator took 270.82ms. Allocated memory is still 520.1MB. Free memory was 479.3MB in the beginning and 459.7MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-11-29 19:50:01,656 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.60ms. Allocated memory is still 520.1MB. Free memory was 459.7MB in the beginning and 457.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-29 19:50:01,656 INFO L158 Benchmark]: Boogie Preprocessor took 13.94ms. Allocated memory is still 520.1MB. Free memory was 457.6MB in the beginning and 456.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-29 19:50:01,657 INFO L158 Benchmark]: RCFGBuilder took 277.91ms. Allocated memory is still 520.1MB. Free memory was 456.2MB in the beginning and 442.0MB in the end (delta: 14.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-11-29 19:50:01,657 INFO L158 Benchmark]: TraceAbstraction took 2450.18ms. Allocated memory is still 520.1MB. Free memory was 441.2MB in the beginning and 215.9MB in the end (delta: 225.3MB). Peak memory consumption was 225.9MB. Max. memory is 16.0GB. [2023-11-29 19:50:01,658 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 339.7MB. Free memory is still 292.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 270.82ms. Allocated memory is still 520.1MB. Free memory was 479.3MB in the beginning and 459.7MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 24.60ms. Allocated memory is still 520.1MB. Free memory was 459.7MB in the beginning and 457.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 13.94ms. Allocated memory is still 520.1MB. Free memory was 457.6MB in the beginning and 456.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 277.91ms. Allocated memory is still 520.1MB. Free memory was 456.2MB in the beginning and 442.0MB in the end (delta: 14.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2450.18ms. Allocated memory is still 520.1MB. Free memory was 441.2MB in the beginning and 215.9MB in the end (delta: 225.3MB). Peak memory consumption was 225.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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 3 procedures, 122 locations, 7 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: 2.4s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 248 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 248 mSDsluCounter, 533 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 383 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 746 IncrementalHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 150 mSDtfsCounter, 746 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1541occurred in iteration=3, InterpolantAutomatonStates: 75, 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: 0.1s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 298 NumberOfCodeBlocks, 298 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 291 ConstructedInterpolants, 0 QuantifiedInterpolants, 679 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-29 19:50:01,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...