./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f3ccdaf8a38fa71f45ae8f9c954b264f54c9fdca890d307be3771e824a47b3d8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 20:37:53,489 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 20:37:53,554 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 20:37:53,561 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 20:37:53,563 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 20:37:53,592 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 20:37:53,593 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 20:37:53,594 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 20:37:53,595 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 20:37:53,596 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 20:37:53,597 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 20:37:53,597 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 20:37:53,598 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 20:37:53,598 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 20:37:53,598 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 20:37:53,599 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 20:37:53,603 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 20:37:53,603 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 20:37:53,603 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 20:37:53,603 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 20:37:53,604 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 20:37:53,604 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 20:37:53,604 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 20:37:53,605 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 20:37:53,605 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 20:37:53,605 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 20:37:53,605 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 20:37:53,605 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 20:37:53,606 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 20:37:53,606 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 20:37:53,606 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 20:37:53,606 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 20:37:53,607 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 20:37:53,607 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 20:37:53,608 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 20:37:53,609 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 20:37:53,609 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 20:37:53,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 20:37:53,609 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 20:37:53,609 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 20:37:53,610 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 20:37:53,610 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 20:37:53,610 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3ccdaf8a38fa71f45ae8f9c954b264f54c9fdca890d307be3771e824a47b3d8 [2024-10-12 20:37:53,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 20:37:53,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 20:37:53,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 20:37:53,881 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 20:37:53,882 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 20:37:53,883 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2024-10-12 20:37:55,307 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 20:37:55,613 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 20:37:55,614 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2024-10-12 20:37:55,638 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f1bb9cd2/2ccc1941e9c140df98b3d82054a27628/FLAG5ef821e68 [2024-10-12 20:37:55,649 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f1bb9cd2/2ccc1941e9c140df98b3d82054a27628 [2024-10-12 20:37:55,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 20:37:55,653 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 20:37:55,654 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 20:37:55,654 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 20:37:55,663 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 20:37:55,664 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:37:55" (1/1) ... [2024-10-12 20:37:55,665 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@594cc7c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:37:55, skipping insertion in model container [2024-10-12 20:37:55,665 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:37:55" (1/1) ... [2024-10-12 20:37:55,754 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 20:37:56,151 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c[23233,23246] [2024-10-12 20:37:56,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 20:37:56,383 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 20:37:56,498 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c[23233,23246] [2024-10-12 20:37:56,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 20:37:56,578 INFO L204 MainTranslator]: Completed translation [2024-10-12 20:37:56,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:37:56 WrapperNode [2024-10-12 20:37:56,579 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 20:37:56,580 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 20:37:56,580 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 20:37:56,580 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 20:37:56,587 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:37:56" (1/1) ... [2024-10-12 20:37:56,616 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:37:56" (1/1) ... [2024-10-12 20:37:56,708 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2996 [2024-10-12 20:37:56,708 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 20:37:56,709 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 20:37:56,709 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 20:37:56,709 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 20:37:56,720 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:37:56" (1/1) ... [2024-10-12 20:37:56,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:37:56" (1/1) ... [2024-10-12 20:37:56,731 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:37:56" (1/1) ... [2024-10-12 20:37:56,782 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 20:37:56,782 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:37:56" (1/1) ... [2024-10-12 20:37:56,783 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:37:56" (1/1) ... [2024-10-12 20:37:56,813 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:37:56" (1/1) ... [2024-10-12 20:37:56,837 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:37:56" (1/1) ... [2024-10-12 20:37:56,849 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:37:56" (1/1) ... [2024-10-12 20:37:56,863 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:37:56" (1/1) ... [2024-10-12 20:37:56,880 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 20:37:56,881 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 20:37:56,881 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 20:37:56,882 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 20:37:56,883 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:37:56" (1/1) ... [2024-10-12 20:37:56,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 20:37:56,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:37:56,915 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 20:37:56,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 20:37:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 20:37:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 20:37:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 20:37:56,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 20:37:57,182 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 20:37:57,184 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 20:37:59,624 INFO L? ?]: Removed 257 outVars from TransFormulas that were not future-live. [2024-10-12 20:37:59,624 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 20:37:59,751 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 20:37:59,752 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-12 20:37:59,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:37:59 BoogieIcfgContainer [2024-10-12 20:37:59,752 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 20:37:59,754 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 20:37:59,754 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 20:37:59,760 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 20:37:59,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 08:37:55" (1/3) ... [2024-10-12 20:37:59,761 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3d77ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:37:59, skipping insertion in model container [2024-10-12 20:37:59,761 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:37:56" (2/3) ... [2024-10-12 20:37:59,762 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3d77ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:37:59, skipping insertion in model container [2024-10-12 20:37:59,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:37:59" (3/3) ... [2024-10-12 20:37:59,764 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.5.3.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c [2024-10-12 20:37:59,784 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 20:37:59,784 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 20:37:59,887 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 20:37:59,894 INFO L333 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, 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;@35bf03cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 20:37:59,895 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 20:37:59,905 INFO L276 IsEmpty]: Start isEmpty. Operand has 768 states, 766 states have (on average 1.8394255874673628) internal successors, (1409), 767 states have internal predecessors, (1409), 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) [2024-10-12 20:37:59,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-10-12 20:37:59,938 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:37:59,940 INFO L215 NwaCegarLoop]: 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] [2024-10-12 20:37:59,940 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:37:59,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:37:59,946 INFO L85 PathProgramCache]: Analyzing trace with hash -673244228, now seen corresponding path program 1 times [2024-10-12 20:37:59,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:37:59,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385866207] [2024-10-12 20:37:59,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:37:59,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:00,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:38:00,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:00,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385866207] [2024-10-12 20:38:00,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385866207] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:38:00,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:38:00,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:38:00,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101974097] [2024-10-12 20:38:00,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:38:00,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:38:00,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:00,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:38:00,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:00,887 INFO L87 Difference]: Start difference. First operand has 768 states, 766 states have (on average 1.8394255874673628) internal successors, (1409), 767 states have internal predecessors, (1409), 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) Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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) [2024-10-12 20:38:01,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:01,096 INFO L93 Difference]: Finished difference Result 1196 states and 2135 transitions. [2024-10-12 20:38:01,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:38:01,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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) Word has length 212 [2024-10-12 20:38:01,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:01,141 INFO L225 Difference]: With dead ends: 1196 [2024-10-12 20:38:01,142 INFO L226 Difference]: Without dead ends: 971 [2024-10-12 20:38:01,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:01,152 INFO L432 NwaCegarLoop]: 1401 mSDtfsCounter, 391 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 2692 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:38:01,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 2692 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:38:01,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2024-10-12 20:38:01,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 969. [2024-10-12 20:38:01,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 968 states have (on average 1.7365702479338843) internal successors, (1681), 968 states have internal predecessors, (1681), 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) [2024-10-12 20:38:01,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1681 transitions. [2024-10-12 20:38:01,263 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1681 transitions. Word has length 212 [2024-10-12 20:38:01,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:01,267 INFO L471 AbstractCegarLoop]: Abstraction has 969 states and 1681 transitions. [2024-10-12 20:38:01,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 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) [2024-10-12 20:38:01,267 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1681 transitions. [2024-10-12 20:38:01,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-10-12 20:38:01,274 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:01,274 INFO L215 NwaCegarLoop]: 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] [2024-10-12 20:38:01,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 20:38:01,275 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:01,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:01,275 INFO L85 PathProgramCache]: Analyzing trace with hash -325063551, now seen corresponding path program 1 times [2024-10-12 20:38:01,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:01,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174801637] [2024-10-12 20:38:01,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:01,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:01,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:01,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:38:01,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:01,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174801637] [2024-10-12 20:38:01,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174801637] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:38:01,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:38:01,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:38:01,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275437062] [2024-10-12 20:38:01,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:38:01,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:38:01,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:01,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:38:01,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:01,683 INFO L87 Difference]: Start difference. First operand 969 states and 1681 transitions. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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) [2024-10-12 20:38:01,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:01,799 INFO L93 Difference]: Finished difference Result 1789 states and 3065 transitions. [2024-10-12 20:38:01,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:38:01,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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) Word has length 216 [2024-10-12 20:38:01,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:01,808 INFO L225 Difference]: With dead ends: 1789 [2024-10-12 20:38:01,809 INFO L226 Difference]: Without dead ends: 1367 [2024-10-12 20:38:01,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:01,814 INFO L432 NwaCegarLoop]: 1337 mSDtfsCounter, 339 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 2621 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:38:01,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 2621 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:38:01,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2024-10-12 20:38:01,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1365. [2024-10-12 20:38:01,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1365 states, 1364 states have (on average 1.721407624633431) internal successors, (2348), 1364 states have internal predecessors, (2348), 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) [2024-10-12 20:38:01,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 2348 transitions. [2024-10-12 20:38:01,858 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 2348 transitions. Word has length 216 [2024-10-12 20:38:01,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:01,859 INFO L471 AbstractCegarLoop]: Abstraction has 1365 states and 2348 transitions. [2024-10-12 20:38:01,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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) [2024-10-12 20:38:01,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 2348 transitions. [2024-10-12 20:38:01,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-10-12 20:38:01,863 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:01,863 INFO L215 NwaCegarLoop]: 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] [2024-10-12 20:38:01,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 20:38:01,864 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:01,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:01,868 INFO L85 PathProgramCache]: Analyzing trace with hash 527319110, now seen corresponding path program 1 times [2024-10-12 20:38:01,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:01,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708011189] [2024-10-12 20:38:01,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:01,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:02,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:38:02,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:02,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708011189] [2024-10-12 20:38:02,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708011189] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:38:02,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:38:02,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:38:02,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317813773] [2024-10-12 20:38:02,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:38:02,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:38:02,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:02,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:38:02,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:02,189 INFO L87 Difference]: Start difference. First operand 1365 states and 2348 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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) [2024-10-12 20:38:02,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:02,286 INFO L93 Difference]: Finished difference Result 2953 states and 5022 transitions. [2024-10-12 20:38:02,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:38:02,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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) Word has length 220 [2024-10-12 20:38:02,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:02,296 INFO L225 Difference]: With dead ends: 2953 [2024-10-12 20:38:02,296 INFO L226 Difference]: Without dead ends: 2135 [2024-10-12 20:38:02,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:02,301 INFO L432 NwaCegarLoop]: 1337 mSDtfsCounter, 331 mSDsluCounter, 1285 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 2622 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:38:02,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 2622 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:38:02,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2135 states. [2024-10-12 20:38:02,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2135 to 2133. [2024-10-12 20:38:02,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2133 states, 2132 states have (on average 1.7054409005628517) internal successors, (3636), 2132 states have internal predecessors, (3636), 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) [2024-10-12 20:38:02,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2133 states to 2133 states and 3636 transitions. [2024-10-12 20:38:02,346 INFO L78 Accepts]: Start accepts. Automaton has 2133 states and 3636 transitions. Word has length 220 [2024-10-12 20:38:02,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:02,347 INFO L471 AbstractCegarLoop]: Abstraction has 2133 states and 3636 transitions. [2024-10-12 20:38:02,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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) [2024-10-12 20:38:02,351 INFO L276 IsEmpty]: Start isEmpty. Operand 2133 states and 3636 transitions. [2024-10-12 20:38:02,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-10-12 20:38:02,355 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:02,356 INFO L215 NwaCegarLoop]: 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] [2024-10-12 20:38:02,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 20:38:02,356 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:02,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:02,358 INFO L85 PathProgramCache]: Analyzing trace with hash 459862539, now seen corresponding path program 1 times [2024-10-12 20:38:02,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:02,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761649611] [2024-10-12 20:38:02,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:02,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:02,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:02,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:38:02,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:02,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761649611] [2024-10-12 20:38:02,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761649611] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:38:02,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:38:02,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:38:02,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562629001] [2024-10-12 20:38:02,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:38:02,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:38:02,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:02,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:38:02,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:02,741 INFO L87 Difference]: Start difference. First operand 2133 states and 3636 transitions. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2024-10-12 20:38:02,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:02,949 INFO L93 Difference]: Finished difference Result 5209 states and 8798 transitions. [2024-10-12 20:38:02,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:38:02,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) Word has length 224 [2024-10-12 20:38:02,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:02,964 INFO L225 Difference]: With dead ends: 5209 [2024-10-12 20:38:02,964 INFO L226 Difference]: Without dead ends: 3623 [2024-10-12 20:38:02,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:02,969 INFO L432 NwaCegarLoop]: 1337 mSDtfsCounter, 323 mSDsluCounter, 1286 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 2623 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:38:02,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 2623 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:38:02,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3623 states. [2024-10-12 20:38:03,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3623 to 3621. [2024-10-12 20:38:03,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3621 states, 3620 states have (on average 1.6906077348066297) internal successors, (6120), 3620 states have internal predecessors, (6120), 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) [2024-10-12 20:38:03,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3621 states to 3621 states and 6120 transitions. [2024-10-12 20:38:03,045 INFO L78 Accepts]: Start accepts. Automaton has 3621 states and 6120 transitions. Word has length 224 [2024-10-12 20:38:03,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:03,046 INFO L471 AbstractCegarLoop]: Abstraction has 3621 states and 6120 transitions. [2024-10-12 20:38:03,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2024-10-12 20:38:03,046 INFO L276 IsEmpty]: Start isEmpty. Operand 3621 states and 6120 transitions. [2024-10-12 20:38:03,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-10-12 20:38:03,050 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:03,051 INFO L215 NwaCegarLoop]: 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] [2024-10-12 20:38:03,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 20:38:03,051 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:03,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:03,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1949588688, now seen corresponding path program 1 times [2024-10-12 20:38:03,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:03,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484673018] [2024-10-12 20:38:03,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:03,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:03,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:38:03,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:03,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484673018] [2024-10-12 20:38:03,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484673018] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:38:03,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:38:03,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:38:03,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728409187] [2024-10-12 20:38:03,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:38:03,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:38:03,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:03,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:38:03,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:03,359 INFO L87 Difference]: Start difference. First operand 3621 states and 6120 transitions. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2024-10-12 20:38:03,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:03,480 INFO L93 Difference]: Finished difference Result 9577 states and 16074 transitions. [2024-10-12 20:38:03,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:38:03,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) Word has length 228 [2024-10-12 20:38:03,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:03,505 INFO L225 Difference]: With dead ends: 9577 [2024-10-12 20:38:03,505 INFO L226 Difference]: Without dead ends: 6503 [2024-10-12 20:38:03,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:03,514 INFO L432 NwaCegarLoop]: 1337 mSDtfsCounter, 315 mSDsluCounter, 1287 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 2624 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:38:03,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 2624 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:38:03,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6503 states. [2024-10-12 20:38:03,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6503 to 6501. [2024-10-12 20:38:03,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6501 states, 6500 states have (on average 1.6775384615384616) internal successors, (10904), 6500 states have internal predecessors, (10904), 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) [2024-10-12 20:38:03,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6501 states to 6501 states and 10904 transitions. [2024-10-12 20:38:03,657 INFO L78 Accepts]: Start accepts. Automaton has 6501 states and 10904 transitions. Word has length 228 [2024-10-12 20:38:03,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:03,657 INFO L471 AbstractCegarLoop]: Abstraction has 6501 states and 10904 transitions. [2024-10-12 20:38:03,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2024-10-12 20:38:03,659 INFO L276 IsEmpty]: Start isEmpty. Operand 6501 states and 10904 transitions. [2024-10-12 20:38:03,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-10-12 20:38:03,663 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:03,664 INFO L215 NwaCegarLoop]: 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] [2024-10-12 20:38:03,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 20:38:03,664 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:03,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:03,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1283826795, now seen corresponding path program 1 times [2024-10-12 20:38:03,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:03,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037497306] [2024-10-12 20:38:03,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:03,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:04,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:38:04,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:04,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037497306] [2024-10-12 20:38:04,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037497306] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:38:04,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:38:04,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:38:04,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537439594] [2024-10-12 20:38:04,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:38:04,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:38:04,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:04,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:38:04,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:38:04,151 INFO L87 Difference]: Start difference. First operand 6501 states and 10904 transitions. Second operand has 7 states, 7 states have (on average 33.142857142857146) internal successors, (232), 7 states have internal predecessors, (232), 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) [2024-10-12 20:38:04,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:04,913 INFO L93 Difference]: Finished difference Result 40025 states and 67186 transitions. [2024-10-12 20:38:04,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 20:38:04,914 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.142857142857146) internal successors, (232), 7 states have internal predecessors, (232), 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) Word has length 232 [2024-10-12 20:38:04,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:05,009 INFO L225 Difference]: With dead ends: 40025 [2024-10-12 20:38:05,009 INFO L226 Difference]: Without dead ends: 34071 [2024-10-12 20:38:05,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-10-12 20:38:05,025 INFO L432 NwaCegarLoop]: 1324 mSDtfsCounter, 5656 mSDsluCounter, 9272 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5656 SdHoareTripleChecker+Valid, 10596 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 20:38:05,026 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5656 Valid, 10596 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 20:38:05,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34071 states. [2024-10-12 20:38:05,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34071 to 12238. [2024-10-12 20:38:05,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12238 states, 12237 states have (on average 1.6726321810901366) internal successors, (20468), 12237 states have internal predecessors, (20468), 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) [2024-10-12 20:38:05,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12238 states to 12238 states and 20468 transitions. [2024-10-12 20:38:05,626 INFO L78 Accepts]: Start accepts. Automaton has 12238 states and 20468 transitions. Word has length 232 [2024-10-12 20:38:05,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:05,627 INFO L471 AbstractCegarLoop]: Abstraction has 12238 states and 20468 transitions. [2024-10-12 20:38:05,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.142857142857146) internal successors, (232), 7 states have internal predecessors, (232), 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) [2024-10-12 20:38:05,628 INFO L276 IsEmpty]: Start isEmpty. Operand 12238 states and 20468 transitions. [2024-10-12 20:38:05,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-10-12 20:38:05,636 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:05,637 INFO L215 NwaCegarLoop]: 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] [2024-10-12 20:38:05,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 20:38:05,637 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:05,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:05,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1215544706, now seen corresponding path program 1 times [2024-10-12 20:38:05,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:05,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798221117] [2024-10-12 20:38:05,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:05,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:05,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:38:05,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:05,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798221117] [2024-10-12 20:38:05,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798221117] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:38:05,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:38:06,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:38:06,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124823725] [2024-10-12 20:38:06,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:38:06,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 20:38:06,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:06,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 20:38:06,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:38:06,002 INFO L87 Difference]: Start difference. First operand 12238 states and 20468 transitions. Second operand has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 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) [2024-10-12 20:38:06,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:06,340 INFO L93 Difference]: Finished difference Result 35947 states and 60211 transitions. [2024-10-12 20:38:06,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 20:38:06,341 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 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) Word has length 233 [2024-10-12 20:38:06,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:06,394 INFO L225 Difference]: With dead ends: 35947 [2024-10-12 20:38:06,394 INFO L226 Difference]: Without dead ends: 24256 [2024-10-12 20:38:06,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:38:06,420 INFO L432 NwaCegarLoop]: 1329 mSDtfsCounter, 1087 mSDsluCounter, 2690 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 4019 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:38:06,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1087 Valid, 4019 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:38:06,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24256 states. [2024-10-12 20:38:06,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24256 to 18214. [2024-10-12 20:38:06,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18214 states, 18213 states have (on average 1.6726514028441224) internal successors, (30464), 18213 states have internal predecessors, (30464), 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) [2024-10-12 20:38:06,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18214 states to 18214 states and 30464 transitions. [2024-10-12 20:38:06,933 INFO L78 Accepts]: Start accepts. Automaton has 18214 states and 30464 transitions. Word has length 233 [2024-10-12 20:38:06,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:06,934 INFO L471 AbstractCegarLoop]: Abstraction has 18214 states and 30464 transitions. [2024-10-12 20:38:06,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 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) [2024-10-12 20:38:06,935 INFO L276 IsEmpty]: Start isEmpty. Operand 18214 states and 30464 transitions. [2024-10-12 20:38:06,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-10-12 20:38:06,946 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:06,946 INFO L215 NwaCegarLoop]: 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] [2024-10-12 20:38:06,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 20:38:06,947 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:06,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:06,947 INFO L85 PathProgramCache]: Analyzing trace with hash 905758076, now seen corresponding path program 1 times [2024-10-12 20:38:06,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:06,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154714420] [2024-10-12 20:38:06,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:06,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:07,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:07,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:38:07,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:07,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154714420] [2024-10-12 20:38:07,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154714420] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:38:07,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:38:07,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:38:07,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806944626] [2024-10-12 20:38:07,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:38:07,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 20:38:07,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:07,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 20:38:07,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:38:07,229 INFO L87 Difference]: Start difference. First operand 18214 states and 30464 transitions. Second operand has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 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) [2024-10-12 20:38:07,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:07,600 INFO L93 Difference]: Finished difference Result 53759 states and 89951 transitions. [2024-10-12 20:38:07,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 20:38:07,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 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) Word has length 234 [2024-10-12 20:38:07,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:07,680 INFO L225 Difference]: With dead ends: 53759 [2024-10-12 20:38:07,680 INFO L226 Difference]: Without dead ends: 36092 [2024-10-12 20:38:07,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:38:07,717 INFO L432 NwaCegarLoop]: 1329 mSDtfsCounter, 1085 mSDsluCounter, 2978 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 4307 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:38:07,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1085 Valid, 4307 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:38:07,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36092 states. [2024-10-12 20:38:08,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36092 to 27105. [2024-10-12 20:38:08,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27105 states, 27104 states have (on average 1.6703807556080283) internal successors, (45274), 27104 states have internal predecessors, (45274), 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) [2024-10-12 20:38:08,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27105 states to 27105 states and 45274 transitions. [2024-10-12 20:38:08,465 INFO L78 Accepts]: Start accepts. Automaton has 27105 states and 45274 transitions. Word has length 234 [2024-10-12 20:38:08,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:08,466 INFO L471 AbstractCegarLoop]: Abstraction has 27105 states and 45274 transitions. [2024-10-12 20:38:08,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 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) [2024-10-12 20:38:08,466 INFO L276 IsEmpty]: Start isEmpty. Operand 27105 states and 45274 transitions. [2024-10-12 20:38:08,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-10-12 20:38:08,479 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:08,479 INFO L215 NwaCegarLoop]: 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] [2024-10-12 20:38:08,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 20:38:08,480 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:08,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:08,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1368126776, now seen corresponding path program 1 times [2024-10-12 20:38:08,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:08,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143892158] [2024-10-12 20:38:08,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:08,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:08,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:08,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:38:08,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:08,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143892158] [2024-10-12 20:38:08,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143892158] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:38:08,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:38:08,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:38:08,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240456437] [2024-10-12 20:38:08,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:38:08,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:38:08,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:08,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:38:08,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:08,869 INFO L87 Difference]: Start difference. First operand 27105 states and 45274 transitions. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2024-10-12 20:38:09,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:09,278 INFO L93 Difference]: Finished difference Result 54645 states and 91273 transitions. [2024-10-12 20:38:09,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:38:09,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) Word has length 234 [2024-10-12 20:38:09,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:09,356 INFO L225 Difference]: With dead ends: 54645 [2024-10-12 20:38:09,356 INFO L226 Difference]: Without dead ends: 40603 [2024-10-12 20:38:09,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:09,385 INFO L432 NwaCegarLoop]: 1375 mSDtfsCounter, 316 mSDsluCounter, 1286 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 2661 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:38:09,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 2661 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:38:09,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40603 states. [2024-10-12 20:38:10,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40603 to 40601. [2024-10-12 20:38:10,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40601 states, 40600 states have (on average 1.6652955665024631) internal successors, (67611), 40600 states have internal predecessors, (67611), 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) [2024-10-12 20:38:10,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40601 states to 40601 states and 67611 transitions. [2024-10-12 20:38:10,287 INFO L78 Accepts]: Start accepts. Automaton has 40601 states and 67611 transitions. Word has length 234 [2024-10-12 20:38:10,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:10,287 INFO L471 AbstractCegarLoop]: Abstraction has 40601 states and 67611 transitions. [2024-10-12 20:38:10,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2024-10-12 20:38:10,288 INFO L276 IsEmpty]: Start isEmpty. Operand 40601 states and 67611 transitions. [2024-10-12 20:38:10,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-10-12 20:38:10,298 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:10,299 INFO L215 NwaCegarLoop]: 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] [2024-10-12 20:38:10,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 20:38:10,299 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:10,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:10,303 INFO L85 PathProgramCache]: Analyzing trace with hash 744706658, now seen corresponding path program 1 times [2024-10-12 20:38:10,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:10,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875087452] [2024-10-12 20:38:10,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:10,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:38:10,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:10,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875087452] [2024-10-12 20:38:10,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875087452] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:38:10,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:38:10,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:38:10,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836879312] [2024-10-12 20:38:10,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:38:10,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:38:10,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:10,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:38:10,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:10,694 INFO L87 Difference]: Start difference. First operand 40601 states and 67611 transitions. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2024-10-12 20:38:11,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:11,259 INFO L93 Difference]: Finished difference Result 76317 states and 127229 transitions. [2024-10-12 20:38:11,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:38:11,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) Word has length 234 [2024-10-12 20:38:11,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:11,401 INFO L225 Difference]: With dead ends: 76317 [2024-10-12 20:38:11,401 INFO L226 Difference]: Without dead ends: 55947 [2024-10-12 20:38:11,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:11,442 INFO L432 NwaCegarLoop]: 1442 mSDtfsCounter, 324 mSDsluCounter, 1285 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 2727 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:38:11,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 2727 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:38:11,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55947 states. [2024-10-12 20:38:12,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55947 to 55945. [2024-10-12 20:38:12,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55945 states, 55944 states have (on average 1.6621800371800373) internal successors, (92989), 55944 states have internal predecessors, (92989), 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) [2024-10-12 20:38:12,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55945 states to 55945 states and 92989 transitions. [2024-10-12 20:38:12,547 INFO L78 Accepts]: Start accepts. Automaton has 55945 states and 92989 transitions. Word has length 234 [2024-10-12 20:38:12,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:12,548 INFO L471 AbstractCegarLoop]: Abstraction has 55945 states and 92989 transitions. [2024-10-12 20:38:12,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2024-10-12 20:38:12,548 INFO L276 IsEmpty]: Start isEmpty. Operand 55945 states and 92989 transitions. [2024-10-12 20:38:12,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-10-12 20:38:12,557 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:12,557 INFO L215 NwaCegarLoop]: 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] [2024-10-12 20:38:12,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 20:38:12,558 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:12,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:12,559 INFO L85 PathProgramCache]: Analyzing trace with hash -2095703796, now seen corresponding path program 1 times [2024-10-12 20:38:12,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:12,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119623066] [2024-10-12 20:38:12,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:12,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:12,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:12,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:38:12,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:12,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119623066] [2024-10-12 20:38:12,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119623066] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:38:12,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:38:12,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:38:12,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441938924] [2024-10-12 20:38:12,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:38:12,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:38:12,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:12,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:38:12,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:12,800 INFO L87 Difference]: Start difference. First operand 55945 states and 92989 transitions. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2024-10-12 20:38:13,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:13,185 INFO L93 Difference]: Finished difference Result 106061 states and 176529 transitions. [2024-10-12 20:38:13,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:38:13,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) Word has length 234 [2024-10-12 20:38:13,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:13,632 INFO L225 Difference]: With dead ends: 106061 [2024-10-12 20:38:13,633 INFO L226 Difference]: Without dead ends: 77213 [2024-10-12 20:38:13,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:13,686 INFO L432 NwaCegarLoop]: 1509 mSDtfsCounter, 332 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 2793 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:38:13,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 2793 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:38:13,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77213 states. [2024-10-12 20:38:14,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77213 to 77211. [2024-10-12 20:38:14,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77211 states, 77210 states have (on average 1.660108794197643) internal successors, (128177), 77210 states have internal predecessors, (128177), 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) [2024-10-12 20:38:14,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77211 states to 77211 states and 128177 transitions. [2024-10-12 20:38:14,975 INFO L78 Accepts]: Start accepts. Automaton has 77211 states and 128177 transitions. Word has length 234 [2024-10-12 20:38:14,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:14,975 INFO L471 AbstractCegarLoop]: Abstraction has 77211 states and 128177 transitions. [2024-10-12 20:38:14,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2024-10-12 20:38:14,976 INFO L276 IsEmpty]: Start isEmpty. Operand 77211 states and 128177 transitions. [2024-10-12 20:38:14,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-10-12 20:38:14,980 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:14,980 INFO L215 NwaCegarLoop]: 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] [2024-10-12 20:38:14,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 20:38:14,980 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:14,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:14,982 INFO L85 PathProgramCache]: Analyzing trace with hash 347556150, now seen corresponding path program 1 times [2024-10-12 20:38:14,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:14,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322144410] [2024-10-12 20:38:14,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:14,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:15,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:38:15,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:15,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322144410] [2024-10-12 20:38:15,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322144410] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:38:15,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:38:15,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:38:15,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306906834] [2024-10-12 20:38:15,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:38:15,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:38:15,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:15,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:38:15,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:15,171 INFO L87 Difference]: Start difference. First operand 77211 states and 128177 transitions. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2024-10-12 20:38:15,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:15,917 INFO L93 Difference]: Finished difference Result 168677 states and 280221 transitions. [2024-10-12 20:38:15,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:38:15,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) Word has length 234 [2024-10-12 20:38:15,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:16,087 INFO L225 Difference]: With dead ends: 168677 [2024-10-12 20:38:16,087 INFO L226 Difference]: Without dead ends: 116272 [2024-10-12 20:38:16,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:16,139 INFO L432 NwaCegarLoop]: 1575 mSDtfsCounter, 340 mSDsluCounter, 1283 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 2858 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:38:16,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 2858 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:38:16,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116272 states. [2024-10-12 20:38:17,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116272 to 116270. [2024-10-12 20:38:17,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116270 states, 116269 states have (on average 1.6562712330887854) internal successors, (192573), 116269 states have internal predecessors, (192573), 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) [2024-10-12 20:38:18,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116270 states to 116270 states and 192573 transitions. [2024-10-12 20:38:18,242 INFO L78 Accepts]: Start accepts. Automaton has 116270 states and 192573 transitions. Word has length 234 [2024-10-12 20:38:18,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:18,243 INFO L471 AbstractCegarLoop]: Abstraction has 116270 states and 192573 transitions. [2024-10-12 20:38:18,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2024-10-12 20:38:18,244 INFO L276 IsEmpty]: Start isEmpty. Operand 116270 states and 192573 transitions. [2024-10-12 20:38:18,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-10-12 20:38:18,249 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:18,249 INFO L215 NwaCegarLoop]: 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] [2024-10-12 20:38:18,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-12 20:38:18,250 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:18,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:18,250 INFO L85 PathProgramCache]: Analyzing trace with hash -2084592160, now seen corresponding path program 1 times [2024-10-12 20:38:18,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:18,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270202315] [2024-10-12 20:38:18,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:18,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:18,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:18,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:38:18,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:18,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270202315] [2024-10-12 20:38:18,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270202315] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:38:18,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:38:18,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:38:18,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327177746] [2024-10-12 20:38:18,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:38:18,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:38:18,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:18,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:38:18,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:18,534 INFO L87 Difference]: Start difference. First operand 116270 states and 192573 transitions. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2024-10-12 20:38:19,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:19,198 INFO L93 Difference]: Finished difference Result 255753 states and 424972 transitions. [2024-10-12 20:38:19,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:38:19,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) Word has length 234 [2024-10-12 20:38:19,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:19,976 INFO L225 Difference]: With dead ends: 255753 [2024-10-12 20:38:19,976 INFO L226 Difference]: Without dead ends: 175670 [2024-10-12 20:38:20,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:20,017 INFO L432 NwaCegarLoop]: 1634 mSDtfsCounter, 348 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 2916 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:38:20,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 2916 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:38:20,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175670 states. [2024-10-12 20:38:22,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175670 to 175668. [2024-10-12 20:38:22,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175668 states, 175667 states have (on average 1.6543915476441222) internal successors, (290622), 175667 states have internal predecessors, (290622), 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) [2024-10-12 20:38:22,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175668 states to 175668 states and 290622 transitions. [2024-10-12 20:38:22,858 INFO L78 Accepts]: Start accepts. Automaton has 175668 states and 290622 transitions. Word has length 234 [2024-10-12 20:38:22,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:22,858 INFO L471 AbstractCegarLoop]: Abstraction has 175668 states and 290622 transitions. [2024-10-12 20:38:22,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2024-10-12 20:38:22,859 INFO L276 IsEmpty]: Start isEmpty. Operand 175668 states and 290622 transitions. [2024-10-12 20:38:22,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-10-12 20:38:22,860 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:22,861 INFO L215 NwaCegarLoop]: 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] [2024-10-12 20:38:22,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 20:38:22,861 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:22,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:22,862 INFO L85 PathProgramCache]: Analyzing trace with hash -2048774395, now seen corresponding path program 1 times [2024-10-12 20:38:22,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:22,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567299807] [2024-10-12 20:38:22,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:22,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:22,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:23,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:38:23,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:23,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567299807] [2024-10-12 20:38:23,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567299807] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:38:23,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:38:23,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:38:23,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142649739] [2024-10-12 20:38:23,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:38:23,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 20:38:23,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:23,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 20:38:23,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:38:23,109 INFO L87 Difference]: Start difference. First operand 175668 states and 290622 transitions. Second operand has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:38:25,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:25,329 INFO L93 Difference]: Finished difference Result 576591 states and 954765 transitions. [2024-10-12 20:38:25,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 20:38:25,330 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 235 [2024-10-12 20:38:25,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:26,843 INFO L225 Difference]: With dead ends: 576591 [2024-10-12 20:38:26,844 INFO L226 Difference]: Without dead ends: 401584 [2024-10-12 20:38:26,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:38:26,912 INFO L432 NwaCegarLoop]: 1329 mSDtfsCounter, 1083 mSDsluCounter, 2980 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 4309 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:38:26,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1083 Valid, 4309 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:38:27,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401584 states. [2024-10-12 20:38:31,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401584 to 288183. [2024-10-12 20:38:31,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288183 states, 288182 states have (on average 1.6508629963009487) internal successors, (475749), 288182 states have internal predecessors, (475749), 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) [2024-10-12 20:38:32,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288183 states to 288183 states and 475749 transitions. [2024-10-12 20:38:32,881 INFO L78 Accepts]: Start accepts. Automaton has 288183 states and 475749 transitions. Word has length 235 [2024-10-12 20:38:32,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:32,882 INFO L471 AbstractCegarLoop]: Abstraction has 288183 states and 475749 transitions. [2024-10-12 20:38:32,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:38:32,886 INFO L276 IsEmpty]: Start isEmpty. Operand 288183 states and 475749 transitions. [2024-10-12 20:38:32,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-10-12 20:38:32,888 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:32,888 INFO L215 NwaCegarLoop]: 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] [2024-10-12 20:38:32,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-12 20:38:32,888 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:32,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:32,889 INFO L85 PathProgramCache]: Analyzing trace with hash 854557539, now seen corresponding path program 1 times [2024-10-12 20:38:32,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:32,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444571380] [2024-10-12 20:38:32,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:32,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:33,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:38:33,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:33,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444571380] [2024-10-12 20:38:33,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444571380] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:38:33,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:38:33,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:38:33,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100048150] [2024-10-12 20:38:33,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:38:33,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 20:38:33,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:33,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 20:38:33,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:38:33,168 INFO L87 Difference]: Start difference. First operand 288183 states and 475749 transitions. Second operand has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 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) [2024-10-12 20:38:37,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:37,588 INFO L93 Difference]: Finished difference Result 942745 states and 1557847 transitions. [2024-10-12 20:38:37,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 20:38:37,595 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 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) Word has length 236 [2024-10-12 20:38:37,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:38,874 INFO L225 Difference]: With dead ends: 942745 [2024-10-12 20:38:38,874 INFO L226 Difference]: Without dead ends: 655223 [2024-10-12 20:38:39,074 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:38:39,075 INFO L432 NwaCegarLoop]: 1329 mSDtfsCounter, 1081 mSDsluCounter, 2982 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1081 SdHoareTripleChecker+Valid, 4311 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:38:39,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1081 Valid, 4311 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:38:39,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655223 states. [2024-10-12 20:38:46,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655223 to 470978. [2024-10-12 20:38:46,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470978 states, 470977 states have (on average 1.647384054847689) internal successors, (775880), 470977 states have internal predecessors, (775880), 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) [2024-10-12 20:38:47,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470978 states to 470978 states and 775880 transitions. [2024-10-12 20:38:47,906 INFO L78 Accepts]: Start accepts. Automaton has 470978 states and 775880 transitions. Word has length 236 [2024-10-12 20:38:47,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:47,906 INFO L471 AbstractCegarLoop]: Abstraction has 470978 states and 775880 transitions. [2024-10-12 20:38:47,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 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) [2024-10-12 20:38:47,906 INFO L276 IsEmpty]: Start isEmpty. Operand 470978 states and 775880 transitions. [2024-10-12 20:38:47,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-10-12 20:38:47,908 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:47,908 INFO L215 NwaCegarLoop]: 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] [2024-10-12 20:38:47,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-12 20:38:47,908 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:47,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:47,909 INFO L85 PathProgramCache]: Analyzing trace with hash 668092300, now seen corresponding path program 1 times [2024-10-12 20:38:47,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:47,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66669845] [2024-10-12 20:38:47,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:47,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:47,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat