/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/weaver/loop-tiling-eq.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:14:26,392 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:14:26,459 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-12-09 15:14:26,491 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:14:26,491 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:14:26,492 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:14:26,492 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:14:26,492 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:14:26,492 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:14:26,495 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:14:26,496 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:14:26,496 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:14:26,496 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:14:26,497 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:14:26,497 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:14:26,497 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:14:26,498 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:14:26,498 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:14:26,498 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:14:26,498 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:14:26,498 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:14:26,499 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:14:26,499 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:14:26,499 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:14:26,499 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:14:26,499 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:14:26,500 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:14:26,500 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:14:26,500 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:14:26,500 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:14:26,501 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:14:26,501 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:14:26,501 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:14:26,501 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:14:26,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:14:26,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:14:26,726 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:14:26,727 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:14:26,727 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:14:26,728 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/loop-tiling-eq.wvr.c [2023-12-09 15:14:27,868 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:14:28,030 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:14:28,030 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/loop-tiling-eq.wvr.c [2023-12-09 15:14:28,036 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f180857f5/2b73922e97664608bdfab5c40c302b84/FLAGd037c01da [2023-12-09 15:14:28,047 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f180857f5/2b73922e97664608bdfab5c40c302b84 [2023-12-09 15:14:28,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:14:28,049 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:14:28,050 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:14:28,050 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:14:28,053 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:14:28,054 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:14:28" (1/1) ... [2023-12-09 15:14:28,054 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33a9939f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:14:28, skipping insertion in model container [2023-12-09 15:14:28,054 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:14:28" (1/1) ... [2023-12-09 15:14:28,072 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:14:28,218 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/loop-tiling-eq.wvr.c[2644,2657] [2023-12-09 15:14:28,233 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:14:28,245 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:14:28,279 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/loop-tiling-eq.wvr.c[2644,2657] [2023-12-09 15:14:28,282 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:14:28,291 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:14:28,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:14:28 WrapperNode [2023-12-09 15:14:28,292 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:14:28,293 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:14:28,293 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:14:28,293 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:14:28,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:14:28" (1/1) ... [2023-12-09 15:14:28,313 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:14:28" (1/1) ... [2023-12-09 15:14:28,342 INFO L138 Inliner]: procedures = 25, calls = 41, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 196 [2023-12-09 15:14:28,342 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:14:28,343 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:14:28,343 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:14:28,343 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:14:28,354 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:14:28" (1/1) ... [2023-12-09 15:14:28,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:14:28" (1/1) ... [2023-12-09 15:14:28,362 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:14:28" (1/1) ... [2023-12-09 15:14:28,362 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:14:28" (1/1) ... [2023-12-09 15:14:28,368 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:14:28" (1/1) ... [2023-12-09 15:14:28,371 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:14:28" (1/1) ... [2023-12-09 15:14:28,372 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:14:28" (1/1) ... [2023-12-09 15:14:28,373 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:14:28" (1/1) ... [2023-12-09 15:14:28,375 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:14:28,376 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:14:28,376 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:14:28,376 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:14:28,377 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:14:28" (1/1) ... [2023-12-09 15:14:28,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:14:28,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:14:28,409 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-09 15:14:28,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-09 15:14:28,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:14:28,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-09 15:14:28,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:14:28,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:14:28,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 15:14:28,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-09 15:14:28,453 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-12-09 15:14:28,453 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-12-09 15:14:28,453 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-12-09 15:14:28,453 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-12-09 15:14:28,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:14:28,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-09 15:14:28,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:14:28,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:14:28,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:14:28,454 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-09 15:14:28,525 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:14:28,526 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:14:28,887 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:14:28,902 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:14:28,902 INFO L309 CfgBuilder]: Removed 7 assume(true) statements. [2023-12-09 15:14:28,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:14:28 BoogieIcfgContainer [2023-12-09 15:14:28,904 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:14:28,905 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:14:28,905 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:14:28,907 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:14:28,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:14:28" (1/3) ... [2023-12-09 15:14:28,908 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@607662ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:14:28, skipping insertion in model container [2023-12-09 15:14:28,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:14:28" (2/3) ... [2023-12-09 15:14:28,908 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@607662ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:14:28, skipping insertion in model container [2023-12-09 15:14:28,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:14:28" (3/3) ... [2023-12-09 15:14:28,909 INFO L112 eAbstractionObserver]: Analyzing ICFG loop-tiling-eq.wvr.c [2023-12-09 15:14:28,923 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:14:28,923 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:14:28,923 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:14:28,991 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-12-09 15:14:29,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 272 places, 291 transitions, 596 flow [2023-12-09 15:14:29,078 INFO L124 PetriNetUnfolderBase]: 26/289 cut-off events. [2023-12-09 15:14:29,079 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-09 15:14:29,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 289 events. 26/289 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 302 event pairs, 0 based on Foata normal form. 0/262 useless extension candidates. Maximal degree in co-relation 218. Up to 2 conditions per place. [2023-12-09 15:14:29,083 INFO L82 GeneralOperation]: Start removeDead. Operand has 272 places, 291 transitions, 596 flow [2023-12-09 15:14:29,088 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 261 places, 280 transitions, 572 flow [2023-12-09 15:14:29,094 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:14:29,099 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;@8a32655, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:14:29,099 INFO L363 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-12-09 15:14:29,134 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:14:29,134 INFO L124 PetriNetUnfolderBase]: 26/279 cut-off events. [2023-12-09 15:14:29,134 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-12-09 15:14:29,135 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:14:29,135 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:14:29,136 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:14:29,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:14:29,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1711979408, now seen corresponding path program 1 times [2023-12-09 15:14:29,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:14:29,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158025832] [2023-12-09 15:14:29,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:14:29,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:14:29,240 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-09 15:14:29,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [61751482] [2023-12-09 15:14:29,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:14:29,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:14:29,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:14:29,243 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:14:29,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-09 15:14:29,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:14:29,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-09 15:14:29,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:14:29,590 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 15:14:29,590 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-09 15:14:29,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:14:29,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158025832] [2023-12-09 15:14:29,591 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-09 15:14:29,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61751482] [2023-12-09 15:14:29,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61751482] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:14:29,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:14:29,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:14:29,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971152459] [2023-12-09 15:14:29,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:14:29,599 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:14:29,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:14:29,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:14:29,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:14:29,633 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 291 [2023-12-09 15:14:29,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 280 transitions, 572 flow. Second operand has 6 states, 6 states have (on average 180.16666666666666) internal successors, (1081), 6 states have internal predecessors, (1081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:29,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:14:29,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 291 [2023-12-09 15:14:29,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:14:29,849 INFO L124 PetriNetUnfolderBase]: 21/417 cut-off events. [2023-12-09 15:14:29,849 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2023-12-09 15:14:29,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 581 conditions, 417 events. 21/417 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 795 event pairs, 4 based on Foata normal form. 31/412 useless extension candidates. Maximal degree in co-relation 374. Up to 89 conditions per place. [2023-12-09 15:14:29,855 INFO L140 encePairwiseOnDemand]: 251/291 looper letters, 102 selfloop transitions, 4 changer transitions 26/291 dead transitions. [2023-12-09 15:14:29,855 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 291 transitions, 870 flow [2023-12-09 15:14:29,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-09 15:14:29,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-12-09 15:14:29,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1840 transitions. [2023-12-09 15:14:29,871 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6323024054982818 [2023-12-09 15:14:29,872 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1840 transitions. [2023-12-09 15:14:29,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1840 transitions. [2023-12-09 15:14:29,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:14:29,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1840 transitions. [2023-12-09 15:14:29,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 184.0) internal successors, (1840), 10 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:29,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 291.0) internal successors, (3201), 11 states have internal predecessors, (3201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:29,893 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 291.0) internal successors, (3201), 11 states have internal predecessors, (3201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:29,897 INFO L308 CegarLoopForPetriNet]: 261 programPoint places, 9 predicate places. [2023-12-09 15:14:29,897 INFO L500 AbstractCegarLoop]: Abstraction has has 270 places, 291 transitions, 870 flow [2023-12-09 15:14:29,898 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 180.16666666666666) internal successors, (1081), 6 states have internal predecessors, (1081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:29,898 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:14:29,899 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:14:29,904 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-09 15:14:30,103 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-09 15:14:30,104 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:14:30,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:14:30,105 INFO L85 PathProgramCache]: Analyzing trace with hash 741294186, now seen corresponding path program 1 times [2023-12-09 15:14:30,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:14:30,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133344163] [2023-12-09 15:14:30,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:14:30,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:14:30,132 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-09 15:14:30,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1078499059] [2023-12-09 15:14:30,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:14:30,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:14:30,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:14:30,134 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:14:30,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-09 15:14:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:14:30,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-09 15:14:30,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:14:30,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:14:30,403 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:14:30,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:14:30,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:14:30,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133344163] [2023-12-09 15:14:30,489 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-09 15:14:30,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078499059] [2023-12-09 15:14:30,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078499059] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-09 15:14:30,489 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-09 15:14:30,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2023-12-09 15:14:30,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44270204] [2023-12-09 15:14:30,490 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-09 15:14:30,490 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:14:30,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:14:30,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:14:30,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:14:30,493 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 291 [2023-12-09 15:14:30,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 291 transitions, 870 flow. Second operand has 6 states, 6 states have (on average 246.33333333333334) internal successors, (1478), 6 states have internal predecessors, (1478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:30,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:14:30,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 291 [2023-12-09 15:14:30,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:14:30,599 INFO L124 PetriNetUnfolderBase]: 37/461 cut-off events. [2023-12-09 15:14:30,600 INFO L125 PetriNetUnfolderBase]: For 165/176 co-relation queries the response was YES. [2023-12-09 15:14:30,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 749 conditions, 461 events. 37/461 cut-off events. For 165/176 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1245 event pairs, 7 based on Foata normal form. 0/426 useless extension candidates. Maximal degree in co-relation 397. Up to 99 conditions per place. [2023-12-09 15:14:30,602 INFO L140 encePairwiseOnDemand]: 282/291 looper letters, 30 selfloop transitions, 9 changer transitions 33/305 dead transitions. [2023-12-09 15:14:30,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 305 transitions, 1025 flow [2023-12-09 15:14:30,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 15:14:30,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 15:14:30,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1992 transitions. [2023-12-09 15:14:30,605 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8556701030927835 [2023-12-09 15:14:30,605 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1992 transitions. [2023-12-09 15:14:30,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1992 transitions. [2023-12-09 15:14:30,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:14:30,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1992 transitions. [2023-12-09 15:14:30,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 249.0) internal successors, (1992), 8 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:30,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 291.0) internal successors, (2619), 9 states have internal predecessors, (2619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:30,613 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 291.0) internal successors, (2619), 9 states have internal predecessors, (2619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:30,614 INFO L308 CegarLoopForPetriNet]: 261 programPoint places, 16 predicate places. [2023-12-09 15:14:30,614 INFO L500 AbstractCegarLoop]: Abstraction has has 277 places, 305 transitions, 1025 flow [2023-12-09 15:14:30,615 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 246.33333333333334) internal successors, (1478), 6 states have internal predecessors, (1478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:30,615 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:14:30,615 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:14:30,622 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-09 15:14:30,820 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-09 15:14:30,820 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:14:30,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:14:30,821 INFO L85 PathProgramCache]: Analyzing trace with hash -995432948, now seen corresponding path program 1 times [2023-12-09 15:14:30,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:14:30,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561951485] [2023-12-09 15:14:30,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:14:30,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:14:30,841 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-09 15:14:30,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [269870268] [2023-12-09 15:14:30,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:14:30,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:14:30,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:14:30,862 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:14:30,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-09 15:14:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:14:30,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-09 15:14:30,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:14:31,119 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:14:31,119 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-09 15:14:31,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:14:31,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561951485] [2023-12-09 15:14:31,120 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-09 15:14:31,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269870268] [2023-12-09 15:14:31,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [269870268] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:14:31,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:14:31,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 15:14:31,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269074737] [2023-12-09 15:14:31,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:14:31,121 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:14:31,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:14:31,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:14:31,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:14:31,123 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 291 [2023-12-09 15:14:31,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 305 transitions, 1025 flow. Second operand has 8 states, 8 states have (on average 150.5) internal successors, (1204), 8 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 15:14:31,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:14:31,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 291 [2023-12-09 15:14:31,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:14:31,515 INFO L124 PetriNetUnfolderBase]: 71/689 cut-off events. [2023-12-09 15:14:31,515 INFO L125 PetriNetUnfolderBase]: For 529/543 co-relation queries the response was YES. [2023-12-09 15:14:31,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1421 conditions, 689 events. 71/689 cut-off events. For 529/543 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2857 event pairs, 20 based on Foata normal form. 0/638 useless extension candidates. Maximal degree in co-relation 721. Up to 151 conditions per place. [2023-12-09 15:14:31,519 INFO L140 encePairwiseOnDemand]: 266/291 looper letters, 133 selfloop transitions, 8 changer transitions 81/357 dead transitions. [2023-12-09 15:14:31,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 357 transitions, 1639 flow [2023-12-09 15:14:31,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-09 15:14:31,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-12-09 15:14:31,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2102 transitions. [2023-12-09 15:14:31,523 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.5159548355424645 [2023-12-09 15:14:31,523 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2102 transitions. [2023-12-09 15:14:31,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2102 transitions. [2023-12-09 15:14:31,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:14:31,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2102 transitions. [2023-12-09 15:14:31,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 150.14285714285714) internal successors, (2102), 14 states have internal predecessors, (2102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:31,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 291.0) internal successors, (4365), 15 states have internal predecessors, (4365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:31,533 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 291.0) internal successors, (4365), 15 states have internal predecessors, (4365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:31,533 INFO L308 CegarLoopForPetriNet]: 261 programPoint places, 29 predicate places. [2023-12-09 15:14:31,533 INFO L500 AbstractCegarLoop]: Abstraction has has 290 places, 357 transitions, 1639 flow [2023-12-09 15:14:31,534 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 150.5) internal successors, (1204), 8 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 15:14:31,534 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:14:31,534 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:14:31,542 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-09 15:14:31,740 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:14:31,741 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:14:31,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:14:31,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1160512291, now seen corresponding path program 1 times [2023-12-09 15:14:31,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:14:31,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120800442] [2023-12-09 15:14:31,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:14:31,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:14:31,771 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-09 15:14:31,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2054558903] [2023-12-09 15:14:31,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:14:31,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:14:31,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:14:31,773 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:14:31,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-09 15:14:31,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:14:31,899 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-09 15:14:31,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:14:31,995 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:14:31,995 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:14:32,151 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:14:32,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:14:32,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120800442] [2023-12-09 15:14:32,151 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-09 15:14:32,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054558903] [2023-12-09 15:14:32,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054558903] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-09 15:14:32,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-09 15:14:32,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2023-12-09 15:14:32,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956776882] [2023-12-09 15:14:32,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:14:32,153 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 15:14:32,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:14:32,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 15:14:32,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:14:32,154 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 291 [2023-12-09 15:14:32,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 357 transitions, 1639 flow. Second operand has 7 states, 7 states have (on average 214.28571428571428) internal successors, (1500), 7 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:32,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:14:32,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 291 [2023-12-09 15:14:32,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:14:32,394 INFO L124 PetriNetUnfolderBase]: 129/895 cut-off events. [2023-12-09 15:14:32,394 INFO L125 PetriNetUnfolderBase]: For 1587/1604 co-relation queries the response was YES. [2023-12-09 15:14:32,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2304 conditions, 895 events. 129/895 cut-off events. For 1587/1604 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 4344 event pairs, 19 based on Foata normal form. 0/833 useless extension candidates. Maximal degree in co-relation 950. Up to 228 conditions per place. [2023-12-09 15:14:32,397 INFO L140 encePairwiseOnDemand]: 276/291 looper letters, 71 selfloop transitions, 11 changer transitions 118/403 dead transitions. [2023-12-09 15:14:32,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 403 transitions, 2234 flow [2023-12-09 15:14:32,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:14:32,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 15:14:32,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1956 transitions. [2023-12-09 15:14:32,401 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7468499427262314 [2023-12-09 15:14:32,401 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1956 transitions. [2023-12-09 15:14:32,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1956 transitions. [2023-12-09 15:14:32,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:14:32,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1956 transitions. [2023-12-09 15:14:32,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 217.33333333333334) internal successors, (1956), 9 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:32,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 291.0) internal successors, (2910), 10 states have internal predecessors, (2910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:32,407 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 291.0) internal successors, (2910), 10 states have internal predecessors, (2910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:32,409 INFO L308 CegarLoopForPetriNet]: 261 programPoint places, 37 predicate places. [2023-12-09 15:14:32,409 INFO L500 AbstractCegarLoop]: Abstraction has has 298 places, 403 transitions, 2234 flow [2023-12-09 15:14:32,410 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 214.28571428571428) internal successors, (1500), 7 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:32,410 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:14:32,410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:14:32,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-09 15:14:32,615 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:14:32,616 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:14:32,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:14:32,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1683119497, now seen corresponding path program 1 times [2023-12-09 15:14:32,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:14:32,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886427576] [2023-12-09 15:14:32,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:14:32,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:14:32,651 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-09 15:14:32,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1212215457] [2023-12-09 15:14:32,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:14:32,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:14:32,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:14:32,660 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:14:32,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-09 15:14:32,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:14:32,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-09 15:14:32,837 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:14:33,178 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-09 15:14:33,178 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-09 15:14:33,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:14:33,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886427576] [2023-12-09 15:14:33,178 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-09 15:14:33,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212215457] [2023-12-09 15:14:33,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212215457] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:14:33,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:14:33,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-09 15:14:33,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778850305] [2023-12-09 15:14:33,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:14:33,179 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-09 15:14:33,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:14:33,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-09 15:14:33,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-09 15:14:33,182 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 291 [2023-12-09 15:14:33,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 403 transitions, 2234 flow. Second operand has 12 states, 12 states have (on average 198.66666666666666) internal successors, (2384), 12 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:33,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:14:33,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 291 [2023-12-09 15:14:33,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:14:34,156 INFO L124 PetriNetUnfolderBase]: 400/2094 cut-off events. [2023-12-09 15:14:34,156 INFO L125 PetriNetUnfolderBase]: For 4243/4311 co-relation queries the response was YES. [2023-12-09 15:14:34,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5233 conditions, 2094 events. 400/2094 cut-off events. For 4243/4311 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 12180 event pairs, 126 based on Foata normal form. 16/1800 useless extension candidates. Maximal degree in co-relation 1632. Up to 527 conditions per place. [2023-12-09 15:14:34,166 INFO L140 encePairwiseOnDemand]: 260/291 looper letters, 92 selfloop transitions, 16 changer transitions 214/507 dead transitions. [2023-12-09 15:14:34,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 507 transitions, 3528 flow [2023-12-09 15:14:34,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-09 15:14:34,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-12-09 15:14:34,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4614 transitions. [2023-12-09 15:14:34,199 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6893769610040341 [2023-12-09 15:14:34,199 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4614 transitions. [2023-12-09 15:14:34,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4614 transitions. [2023-12-09 15:14:34,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:14:34,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4614 transitions. [2023-12-09 15:14:34,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 200.6086956521739) internal successors, (4614), 23 states have internal predecessors, (4614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:34,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 291.0) internal successors, (6984), 24 states have internal predecessors, (6984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:34,231 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 291.0) internal successors, (6984), 24 states have internal predecessors, (6984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:34,232 INFO L308 CegarLoopForPetriNet]: 261 programPoint places, 59 predicate places. [2023-12-09 15:14:34,232 INFO L500 AbstractCegarLoop]: Abstraction has has 320 places, 507 transitions, 3528 flow [2023-12-09 15:14:34,233 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 198.66666666666666) internal successors, (2384), 12 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:34,233 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:14:34,233 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:14:34,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-09 15:14:34,436 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:14:34,437 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:14:34,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:14:34,437 INFO L85 PathProgramCache]: Analyzing trace with hash -750592521, now seen corresponding path program 1 times [2023-12-09 15:14:34,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:14:34,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949627537] [2023-12-09 15:14:34,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:14:34,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:14:34,484 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-09 15:14:34,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [907320166] [2023-12-09 15:14:34,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:14:34,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:14:34,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:14:34,487 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:14:34,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-09 15:14:34,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:14:34,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-09 15:14:34,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:14:34,740 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-09 15:14:34,740 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:14:34,889 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-09 15:14:34,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:14:34,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949627537] [2023-12-09 15:14:34,889 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-09 15:14:34,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907320166] [2023-12-09 15:14:34,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907320166] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-09 15:14:34,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-09 15:14:34,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2023-12-09 15:14:34,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490634306] [2023-12-09 15:14:34,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:14:34,890 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 15:14:34,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:14:34,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 15:14:34,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:14:34,892 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 291 [2023-12-09 15:14:34,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 507 transitions, 3528 flow. Second operand has 7 states, 7 states have (on average 219.71428571428572) internal successors, (1538), 7 states have internal predecessors, (1538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:34,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:14:34,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 291 [2023-12-09 15:14:34,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:14:35,387 INFO L124 PetriNetUnfolderBase]: 502/2837 cut-off events. [2023-12-09 15:14:35,387 INFO L125 PetriNetUnfolderBase]: For 8232/8386 co-relation queries the response was YES. [2023-12-09 15:14:35,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8363 conditions, 2837 events. 502/2837 cut-off events. For 8232/8386 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 19852 event pairs, 179 based on Foata normal form. 17/2486 useless extension candidates. Maximal degree in co-relation 2248. Up to 555 conditions per place. [2023-12-09 15:14:35,401 INFO L140 encePairwiseOnDemand]: 271/291 looper letters, 78 selfloop transitions, 7 changer transitions 272/567 dead transitions. [2023-12-09 15:14:35,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 567 transitions, 4640 flow [2023-12-09 15:14:35,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-09 15:14:35,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-12-09 15:14:35,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2011 transitions. [2023-12-09 15:14:35,406 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7678503245513555 [2023-12-09 15:14:35,406 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2011 transitions. [2023-12-09 15:14:35,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2011 transitions. [2023-12-09 15:14:35,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:14:35,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2011 transitions. [2023-12-09 15:14:35,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 223.44444444444446) internal successors, (2011), 9 states have internal predecessors, (2011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:35,413 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 291.0) internal successors, (2910), 10 states have internal predecessors, (2910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:35,413 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 291.0) internal successors, (2910), 10 states have internal predecessors, (2910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:35,414 INFO L308 CegarLoopForPetriNet]: 261 programPoint places, 67 predicate places. [2023-12-09 15:14:35,414 INFO L500 AbstractCegarLoop]: Abstraction has has 328 places, 567 transitions, 4640 flow [2023-12-09 15:14:35,414 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 219.71428571428572) internal successors, (1538), 7 states have internal predecessors, (1538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:14:35,415 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:14:35,415 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:14:35,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-09 15:14:35,623 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:14:35,624 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:14:35,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:14:35,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1218296260, now seen corresponding path program 1 times [2023-12-09 15:14:35,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:14:35,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695335331] [2023-12-09 15:14:35,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:14:35,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:14:35,657 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-09 15:14:35,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [762677825] [2023-12-09 15:14:35,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:14:35,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-09 15:14:35,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:14:35,659 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-09 15:14:35,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-09 15:14:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:14:35,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 134 conjunts are in the unsatisfiable core [2023-12-09 15:14:35,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-09 15:14:36,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-12-09 15:14:36,753 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-12-09 15:14:36,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-12-09 15:14:37,193 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-12-09 15:14:37,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-12-09 15:14:37,796 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-12-09 15:14:37,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2023-12-09 15:14:38,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-09 15:14:38,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-09 15:14:38,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 18 [2023-12-09 15:14:38,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-09 15:14:38,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 18 [2023-12-09 15:14:39,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 15 [2023-12-09 15:14:39,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 18 [2023-12-09 15:14:39,899 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-12-09 15:14:39,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 67 [2023-12-09 15:14:39,916 INFO L349 Elim1Store]: treesize reduction 41, result has 14.6 percent of original size [2023-12-09 15:14:39,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 33 [2023-12-09 15:14:39,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 40 [2023-12-09 15:14:40,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 42 [2023-12-09 15:14:40,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2023-12-09 15:14:41,016 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-12-09 15:14:41,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 13 [2023-12-09 15:14:41,114 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-09 15:14:41,114 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-09 15:14:42,121 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-09 15:14:42,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 322 treesize of output 290 [2023-12-09 15:14:42,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 137 [2023-12-09 15:15:07,076 INFO L349 Elim1Store]: treesize reduction 4, result has 97.9 percent of original size [2023-12-09 15:15:07,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 5398 treesize of output 3874 [2023-12-09 15:16:12,131 WARN L293 SmtUtils]: Spent 8.59s on a formula simplification. DAG size of input: 46 DAG size of output: 43 (called from [L 183] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2023-12-09 15:18:11,889 INFO L349 Elim1Store]: treesize reduction 4, result has 97.9 percent of original size [2023-12-09 15:18:11,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 5654 treesize of output 4098 [2023-12-09 15:18:15,067 INFO L349 Elim1Store]: treesize reduction 8, result has 97.6 percent of original size [2023-12-09 15:18:15,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 16837 treesize of output 13705 [2023-12-09 15:18:32,979 INFO L349 Elim1Store]: treesize reduction 8, result has 97.6 percent of original size [2023-12-09 15:18:32,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 7528 treesize of output 6124 [2023-12-09 15:18:52,372 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-09 15:18:52,373 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-09 15:18:52,375 WARN L214 Elim1Store]: Array PQE input equivalent to true [2023-12-09 15:18:52,483 INFO L349 Elim1Store]: treesize reduction 4, result has 97.9 percent of original size [2023-12-09 15:18:52,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 3268 treesize of output 2584 Received shutdown request... [2023-12-09 15:19:04,100 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-09 15:19:04,100 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-09 15:19:05,109 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-09 15:19:05,309 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2023-12-09 15:19:05,355 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-12-09 15:19:05,356 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 15:19:05,356 WARN L624 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 250 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while executing Executor. [2023-12-09 15:19:05,357 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-12-09 15:19:05,357 INFO L810 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-12-09 15:19:05,357 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:19:05,360 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:19:05,362 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:19:05,366 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 137 [2023-12-09 15:19:05,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:19:05 BasicIcfg [2023-12-09 15:19:05,368 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:19:05,368 INFO L158 Benchmark]: Toolchain (without parser) took 277318.60ms. Allocated memory was 230.7MB in the beginning and 924.8MB in the end (delta: 694.2MB). Free memory was 188.1MB in the beginning and 520.7MB in the end (delta: -332.6MB). Peak memory consumption was 601.2MB. Max. memory is 8.0GB. [2023-12-09 15:19:05,370 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 178.3MB. Free memory was 130.3MB in the beginning and 130.1MB in the end (delta: 180.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:19:05,371 INFO L158 Benchmark]: CACSL2BoogieTranslator took 242.00ms. Allocated memory is still 230.7MB. Free memory was 187.6MB in the beginning and 175.6MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-09 15:19:05,371 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.45ms. Allocated memory is still 230.7MB. Free memory was 175.6MB in the beginning and 173.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:19:05,371 INFO L158 Benchmark]: Boogie Preprocessor took 32.63ms. Allocated memory is still 230.7MB. Free memory was 173.5MB in the beginning and 171.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:19:05,371 INFO L158 Benchmark]: RCFGBuilder took 527.72ms. Allocated memory is still 230.7MB. Free memory was 171.4MB in the beginning and 146.7MB in the end (delta: 24.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-09 15:19:05,372 INFO L158 Benchmark]: TraceAbstraction took 276462.48ms. Allocated memory was 230.7MB in the beginning and 924.8MB in the end (delta: 694.2MB). Free memory was 145.7MB in the beginning and 520.7MB in the end (delta: -375.0MB). Peak memory consumption was 559.2MB. Max. memory is 8.0GB. [2023-12-09 15:19:05,376 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 178.3MB. Free memory was 130.3MB in the beginning and 130.1MB in the end (delta: 180.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 242.00ms. Allocated memory is still 230.7MB. Free memory was 187.6MB in the beginning and 175.6MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.45ms. Allocated memory is still 230.7MB. Free memory was 175.6MB in the beginning and 173.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.63ms. Allocated memory is still 230.7MB. Free memory was 173.5MB in the beginning and 171.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 527.72ms. Allocated memory is still 230.7MB. Free memory was 171.4MB in the beginning and 146.7MB in the end (delta: 24.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * TraceAbstraction took 276462.48ms. Allocated memory was 230.7MB in the beginning and 924.8MB in the end (delta: 694.2MB). Free memory was 145.7MB in the beginning and 520.7MB in the end (delta: -375.0MB). Peak memory consumption was 559.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 250 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was analyzing trace of length 250 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was analyzing trace of length 250 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 302 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 276.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 654 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 654 mSDsluCounter, 1619 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1202 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1495 IncrementalHoareTripleChecker+Invalid, 1547 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 417 mSDtfsCounter, 1495 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1959 GetRequests, 1872 SyntacticMatches, 4 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4640occurred in iteration=6, InterpolantAutomatonStates: 73, 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: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1266 NumberOfCodeBlocks, 1266 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1918 ConstructedInterpolants, 21 QuantifiedInterpolants, 3975 SizeOfPredicates, 38 NumberOfNonLiveVariables, 2866 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 22/26 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown