./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_lcr.8.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 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_lcr.8.1.ufo.UNBOUNDED.pals.c.v+nlh-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 d09ea01cef1d93b0c86c8a3dadfd601718ca81915e873154848504beefeee43f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 01:53:44,246 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 01:53:44,299 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 01:53:44,302 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 01:53:44,302 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 01:53:44,324 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 01:53:44,325 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 01:53:44,325 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 01:53:44,326 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 01:53:44,327 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 01:53:44,327 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 01:53:44,327 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 01:53:44,328 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 01:53:44,328 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 01:53:44,328 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 01:53:44,329 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 01:53:44,329 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 01:53:44,330 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 01:53:44,330 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 01:53:44,330 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 01:53:44,331 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 01:53:44,331 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 01:53:44,332 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 01:53:44,332 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 01:53:44,332 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 01:53:44,332 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 01:53:44,332 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 01:53:44,332 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 01:53:44,333 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 01:53:44,333 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 01:53:44,333 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 01:53:44,333 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 01:53:44,333 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:53:44,333 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 01:53:44,333 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 01:53:44,334 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 01:53:44,334 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 01:53:44,334 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 01:53:44,334 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 01:53:44,334 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 01:53:44,334 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 01:53:44,336 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 01:53:44,336 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d09ea01cef1d93b0c86c8a3dadfd601718ca81915e873154848504beefeee43f [2024-10-24 01:53:44,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 01:53:44,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 01:53:44,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 01:53:44,574 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 01:53:44,575 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 01:53:44,575 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-24 01:53:45,718 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 01:53:45,962 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 01:53:45,963 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-24 01:53:45,983 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3570f595a/0f1a8a97febb4d7d998be14222994e97/FLAG76ff79041 [2024-10-24 01:53:46,332 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3570f595a/0f1a8a97febb4d7d998be14222994e97 [2024-10-24 01:53:46,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 01:53:46,336 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 01:53:46,337 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 01:53:46,337 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 01:53:46,342 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 01:53:46,342 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:53:46" (1/1) ... [2024-10-24 01:53:46,343 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@226a993b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:46, skipping insertion in model container [2024-10-24 01:53:46,343 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:53:46" (1/1) ... [2024-10-24 01:53:46,378 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 01:53:46,624 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_lcr.8.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[11680,11693] [2024-10-24 01:53:46,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:53:46,692 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 01:53:46,761 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_lcr.8.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[11680,11693] [2024-10-24 01:53:46,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:53:46,805 INFO L204 MainTranslator]: Completed translation [2024-10-24 01:53:46,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:46 WrapperNode [2024-10-24 01:53:46,806 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 01:53:46,806 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 01:53:46,806 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 01:53:46,807 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 01:53:46,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:46" (1/1) ... [2024-10-24 01:53:46,822 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:46" (1/1) ... [2024-10-24 01:53:46,860 INFO L138 Inliner]: procedures = 28, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1033 [2024-10-24 01:53:46,860 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 01:53:46,861 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 01:53:46,861 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 01:53:46,861 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 01:53:46,869 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:46" (1/1) ... [2024-10-24 01:53:46,870 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:46" (1/1) ... [2024-10-24 01:53:46,874 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:46" (1/1) ... [2024-10-24 01:53:46,892 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]. [2024-10-24 01:53:46,896 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:46" (1/1) ... [2024-10-24 01:53:46,896 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:46" (1/1) ... [2024-10-24 01:53:46,906 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:46" (1/1) ... [2024-10-24 01:53:46,921 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:46" (1/1) ... [2024-10-24 01:53:46,923 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:46" (1/1) ... [2024-10-24 01:53:46,927 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:46" (1/1) ... [2024-10-24 01:53:46,937 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 01:53:46,938 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 01:53:46,938 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 01:53:46,938 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 01:53:46,939 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:46" (1/1) ... [2024-10-24 01:53:46,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:53:46,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:53:46,975 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) [2024-10-24 01:53:46,981 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 [2024-10-24 01:53:47,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 01:53:47,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 01:53:47,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 01:53:47,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 01:53:47,126 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 01:53:47,128 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 01:53:47,831 INFO L? ?]: Removed 115 outVars from TransFormulas that were not future-live. [2024-10-24 01:53:47,831 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 01:53:47,882 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 01:53:47,883 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 01:53:47,884 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:53:47 BoogieIcfgContainer [2024-10-24 01:53:47,884 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 01:53:47,886 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 01:53:47,887 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 01:53:47,889 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 01:53:47,889 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:53:46" (1/3) ... [2024-10-24 01:53:47,890 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df3c66c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:53:47, skipping insertion in model container [2024-10-24 01:53:47,890 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:53:46" (2/3) ... [2024-10-24 01:53:47,891 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df3c66c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:53:47, skipping insertion in model container [2024-10-24 01:53:47,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:53:47" (3/3) ... [2024-10-24 01:53:47,892 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-24 01:53:47,905 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 01:53:47,905 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 01:53:47,957 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 01:53:47,962 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;@2d9bb22, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 01:53:47,962 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 01:53:47,967 INFO L276 IsEmpty]: Start isEmpty. Operand has 229 states, 227 states have (on average 1.775330396475771) internal successors, (403), 228 states have internal predecessors, (403), 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) [2024-10-24 01:53:47,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-24 01:53:47,976 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:47,976 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] [2024-10-24 01:53:47,977 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:47,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:47,980 INFO L85 PathProgramCache]: Analyzing trace with hash 598204425, now seen corresponding path program 1 times [2024-10-24 01:53:47,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:47,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177520859] [2024-10-24 01:53:47,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:47,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:48,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:48,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:48,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177520859] [2024-10-24 01:53:48,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177520859] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:48,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:48,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 01:53:48,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904128556] [2024-10-24 01:53:48,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:48,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 01:53:48,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:48,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 01:53:48,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 01:53:48,798 INFO L87 Difference]: Start difference. First operand has 229 states, 227 states have (on average 1.775330396475771) internal successors, (403), 228 states have internal predecessors, (403), 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 10 states, 10 states have (on average 12.3) internal successors, (123), 10 states have internal predecessors, (123), 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) [2024-10-24 01:53:49,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:49,551 INFO L93 Difference]: Finished difference Result 1815 states and 2944 transitions. [2024-10-24 01:53:49,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 01:53:49,553 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 10 states have internal predecessors, (123), 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 123 [2024-10-24 01:53:49,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:49,573 INFO L225 Difference]: With dead ends: 1815 [2024-10-24 01:53:49,573 INFO L226 Difference]: Without dead ends: 1704 [2024-10-24 01:53:49,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-10-24 01:53:49,582 INFO L432 NwaCegarLoop]: 982 mSDtfsCounter, 3807 mSDsluCounter, 7142 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3807 SdHoareTripleChecker+Valid, 8124 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:49,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3807 Valid, 8124 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 01:53:49,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1704 states. [2024-10-24 01:53:49,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1704 to 347. [2024-10-24 01:53:49,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 346 states have (on average 1.4479768786127167) internal successors, (501), 346 states have internal predecessors, (501), 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) [2024-10-24 01:53:49,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 501 transitions. [2024-10-24 01:53:49,648 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 501 transitions. Word has length 123 [2024-10-24 01:53:49,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:49,649 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 501 transitions. [2024-10-24 01:53:49,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 10 states have internal predecessors, (123), 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) [2024-10-24 01:53:49,650 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 501 transitions. [2024-10-24 01:53:49,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-24 01:53:49,654 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:49,654 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] [2024-10-24 01:53:49,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 01:53:49,655 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:49,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:49,656 INFO L85 PathProgramCache]: Analyzing trace with hash -254247969, now seen corresponding path program 1 times [2024-10-24 01:53:49,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:49,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413113146] [2024-10-24 01:53:49,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:49,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:49,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:49,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:49,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:49,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413113146] [2024-10-24 01:53:49,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413113146] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:49,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:49,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 01:53:49,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050844110] [2024-10-24 01:53:49,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:49,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 01:53:49,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:49,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 01:53:49,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-24 01:53:49,994 INFO L87 Difference]: Start difference. First operand 347 states and 501 transitions. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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) [2024-10-24 01:53:50,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:50,335 INFO L93 Difference]: Finished difference Result 1959 states and 3066 transitions. [2024-10-24 01:53:50,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 01:53:50,336 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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 125 [2024-10-24 01:53:50,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:50,361 INFO L225 Difference]: With dead ends: 1959 [2024-10-24 01:53:50,361 INFO L226 Difference]: Without dead ends: 1779 [2024-10-24 01:53:50,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:53:50,363 INFO L432 NwaCegarLoop]: 961 mSDtfsCounter, 2723 mSDsluCounter, 3087 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2723 SdHoareTripleChecker+Valid, 4048 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:50,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2723 Valid, 4048 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:53:50,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1779 states. [2024-10-24 01:53:50,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1779 to 551. [2024-10-24 01:53:50,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 550 states have (on average 1.5036363636363637) internal successors, (827), 550 states have internal predecessors, (827), 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) [2024-10-24 01:53:50,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 827 transitions. [2024-10-24 01:53:50,385 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 827 transitions. Word has length 125 [2024-10-24 01:53:50,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:50,386 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 827 transitions. [2024-10-24 01:53:50,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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) [2024-10-24 01:53:50,386 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 827 transitions. [2024-10-24 01:53:50,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-24 01:53:50,387 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:50,387 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] [2024-10-24 01:53:50,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 01:53:50,388 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:50,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:50,388 INFO L85 PathProgramCache]: Analyzing trace with hash 2023621771, now seen corresponding path program 1 times [2024-10-24 01:53:50,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:50,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54748229] [2024-10-24 01:53:50,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:50,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:50,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:50,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:50,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54748229] [2024-10-24 01:53:50,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54748229] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:50,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:50,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 01:53:50,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021441423] [2024-10-24 01:53:50,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:50,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 01:53:50,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:50,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 01:53:50,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-24 01:53:50,689 INFO L87 Difference]: Start difference. First operand 551 states and 827 transitions. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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) [2024-10-24 01:53:51,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:51,013 INFO L93 Difference]: Finished difference Result 2163 states and 3392 transitions. [2024-10-24 01:53:51,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 01:53:51,014 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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 125 [2024-10-24 01:53:51,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:51,021 INFO L225 Difference]: With dead ends: 2163 [2024-10-24 01:53:51,021 INFO L226 Difference]: Without dead ends: 1983 [2024-10-24 01:53:51,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:53:51,025 INFO L432 NwaCegarLoop]: 828 mSDtfsCounter, 2890 mSDsluCounter, 2706 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2890 SdHoareTripleChecker+Valid, 3534 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:51,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2890 Valid, 3534 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:53:51,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2024-10-24 01:53:51,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 839. [2024-10-24 01:53:51,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 838 states have (on average 1.535799522673031) internal successors, (1287), 838 states have internal predecessors, (1287), 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) [2024-10-24 01:53:51,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1287 transitions. [2024-10-24 01:53:51,061 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1287 transitions. Word has length 125 [2024-10-24 01:53:51,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:51,062 INFO L471 AbstractCegarLoop]: Abstraction has 839 states and 1287 transitions. [2024-10-24 01:53:51,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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) [2024-10-24 01:53:51,065 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1287 transitions. [2024-10-24 01:53:51,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-24 01:53:51,066 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:51,067 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] [2024-10-24 01:53:51,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 01:53:51,067 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:51,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:51,068 INFO L85 PathProgramCache]: Analyzing trace with hash -715504879, now seen corresponding path program 1 times [2024-10-24 01:53:51,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:51,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915094651] [2024-10-24 01:53:51,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:51,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:51,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:51,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:51,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:51,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915094651] [2024-10-24 01:53:51,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915094651] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:51,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:51,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 01:53:51,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121123435] [2024-10-24 01:53:51,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:51,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 01:53:51,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:51,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 01:53:51,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-24 01:53:51,320 INFO L87 Difference]: Start difference. First operand 839 states and 1287 transitions. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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) [2024-10-24 01:53:51,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:51,594 INFO L93 Difference]: Finished difference Result 2357 states and 3702 transitions. [2024-10-24 01:53:51,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 01:53:51,595 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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 125 [2024-10-24 01:53:51,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:51,600 INFO L225 Difference]: With dead ends: 2357 [2024-10-24 01:53:51,601 INFO L226 Difference]: Without dead ends: 2177 [2024-10-24 01:53:51,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:53:51,602 INFO L432 NwaCegarLoop]: 702 mSDtfsCounter, 3488 mSDsluCounter, 2366 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3488 SdHoareTripleChecker+Valid, 3068 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:51,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3488 Valid, 3068 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:53:51,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2177 states. [2024-10-24 01:53:51,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2177 to 1033. [2024-10-24 01:53:51,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 1032 states have (on average 1.5474806201550388) internal successors, (1597), 1032 states have internal predecessors, (1597), 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) [2024-10-24 01:53:51,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1597 transitions. [2024-10-24 01:53:51,622 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1597 transitions. Word has length 125 [2024-10-24 01:53:51,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:51,622 INFO L471 AbstractCegarLoop]: Abstraction has 1033 states and 1597 transitions. [2024-10-24 01:53:51,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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) [2024-10-24 01:53:51,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1597 transitions. [2024-10-24 01:53:51,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-24 01:53:51,623 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:51,623 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] [2024-10-24 01:53:51,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 01:53:51,624 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:51,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:51,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1017043939, now seen corresponding path program 1 times [2024-10-24 01:53:51,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:51,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975644003] [2024-10-24 01:53:51,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:51,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:51,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:51,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:51,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:51,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975644003] [2024-10-24 01:53:51,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975644003] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:51,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:51,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 01:53:51,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331188872] [2024-10-24 01:53:51,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:51,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 01:53:51,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:51,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 01:53:51,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-24 01:53:51,840 INFO L87 Difference]: Start difference. First operand 1033 states and 1597 transitions. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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) [2024-10-24 01:53:52,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:52,126 INFO L93 Difference]: Finished difference Result 2546 states and 4004 transitions. [2024-10-24 01:53:52,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 01:53:52,127 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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 125 [2024-10-24 01:53:52,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:52,133 INFO L225 Difference]: With dead ends: 2546 [2024-10-24 01:53:52,133 INFO L226 Difference]: Without dead ends: 2366 [2024-10-24 01:53:52,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:53:52,135 INFO L432 NwaCegarLoop]: 560 mSDtfsCounter, 3813 mSDsluCounter, 2741 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3813 SdHoareTripleChecker+Valid, 3301 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:52,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3813 Valid, 3301 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:53:52,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2024-10-24 01:53:52,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 1212. [2024-10-24 01:53:52,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1212 states, 1211 states have (on average 1.5549132947976878) internal successors, (1883), 1211 states have internal predecessors, (1883), 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) [2024-10-24 01:53:52,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1212 states to 1212 states and 1883 transitions. [2024-10-24 01:53:52,164 INFO L78 Accepts]: Start accepts. Automaton has 1212 states and 1883 transitions. Word has length 125 [2024-10-24 01:53:52,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:52,165 INFO L471 AbstractCegarLoop]: Abstraction has 1212 states and 1883 transitions. [2024-10-24 01:53:52,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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) [2024-10-24 01:53:52,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1212 states and 1883 transitions. [2024-10-24 01:53:52,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-24 01:53:52,167 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:52,168 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] [2024-10-24 01:53:52,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 01:53:52,168 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:52,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:52,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1653603817, now seen corresponding path program 1 times [2024-10-24 01:53:52,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:52,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241991140] [2024-10-24 01:53:52,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:52,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:52,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:52,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:52,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:52,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241991140] [2024-10-24 01:53:52,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241991140] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:52,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:52,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 01:53:52,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457154811] [2024-10-24 01:53:52,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:52,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 01:53:52,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:52,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 01:53:52,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-24 01:53:52,420 INFO L87 Difference]: Start difference. First operand 1212 states and 1883 transitions. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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) [2024-10-24 01:53:52,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:52,693 INFO L93 Difference]: Finished difference Result 2724 states and 4289 transitions. [2024-10-24 01:53:52,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 01:53:52,693 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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 125 [2024-10-24 01:53:52,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:52,700 INFO L225 Difference]: With dead ends: 2724 [2024-10-24 01:53:52,700 INFO L226 Difference]: Without dead ends: 2544 [2024-10-24 01:53:52,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:53:52,701 INFO L432 NwaCegarLoop]: 441 mSDtfsCounter, 3953 mSDsluCounter, 2722 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3953 SdHoareTripleChecker+Valid, 3163 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:52,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3953 Valid, 3163 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:53:52,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2544 states. [2024-10-24 01:53:52,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2544 to 1390. [2024-10-24 01:53:52,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1389 states have (on average 1.5608351331893449) internal successors, (2168), 1389 states have internal predecessors, (2168), 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) [2024-10-24 01:53:52,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 2168 transitions. [2024-10-24 01:53:52,729 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 2168 transitions. Word has length 125 [2024-10-24 01:53:52,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:52,729 INFO L471 AbstractCegarLoop]: Abstraction has 1390 states and 2168 transitions. [2024-10-24 01:53:52,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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) [2024-10-24 01:53:52,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 2168 transitions. [2024-10-24 01:53:52,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-24 01:53:52,730 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:52,730 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] [2024-10-24 01:53:52,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 01:53:52,731 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:52,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:52,731 INFO L85 PathProgramCache]: Analyzing trace with hash -489869420, now seen corresponding path program 1 times [2024-10-24 01:53:52,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:52,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864980634] [2024-10-24 01:53:52,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:52,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:53,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:53,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:53,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864980634] [2024-10-24 01:53:53,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864980634] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:53,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:53,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 01:53:53,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61172506] [2024-10-24 01:53:53,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:53,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 01:53:53,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:53,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 01:53:53,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-10-24 01:53:53,167 INFO L87 Difference]: Start difference. First operand 1390 states and 2168 transitions. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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) [2024-10-24 01:53:53,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:53,549 INFO L93 Difference]: Finished difference Result 2551 states and 4023 transitions. [2024-10-24 01:53:53,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 01:53:53,550 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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 125 [2024-10-24 01:53:53,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:53,553 INFO L225 Difference]: With dead ends: 2551 [2024-10-24 01:53:53,554 INFO L226 Difference]: Without dead ends: 1392 [2024-10-24 01:53:53,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-10-24 01:53:53,556 INFO L432 NwaCegarLoop]: 297 mSDtfsCounter, 597 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 1601 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:53,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 1601 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:53:53,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2024-10-24 01:53:53,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1390. [2024-10-24 01:53:53,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1389 states have (on average 1.5557955363570914) internal successors, (2161), 1389 states have internal predecessors, (2161), 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) [2024-10-24 01:53:53,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 2161 transitions. [2024-10-24 01:53:53,578 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 2161 transitions. Word has length 125 [2024-10-24 01:53:53,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:53,579 INFO L471 AbstractCegarLoop]: Abstraction has 1390 states and 2161 transitions. [2024-10-24 01:53:53,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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) [2024-10-24 01:53:53,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 2161 transitions. [2024-10-24 01:53:53,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-24 01:53:53,580 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:53,580 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] [2024-10-24 01:53:53,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 01:53:53,580 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:53,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:53,582 INFO L85 PathProgramCache]: Analyzing trace with hash -770172939, now seen corresponding path program 1 times [2024-10-24 01:53:53,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:53,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470038783] [2024-10-24 01:53:53,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:53,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:53,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:53,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:53,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:53,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470038783] [2024-10-24 01:53:53,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470038783] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:53,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:53,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:53:53,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582624501] [2024-10-24 01:53:53,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:53,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:53:53,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:53,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:53:53,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:53:53,661 INFO L87 Difference]: Start difference. First operand 1390 states and 2161 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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) [2024-10-24 01:53:53,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:53,698 INFO L93 Difference]: Finished difference Result 3624 states and 5714 transitions. [2024-10-24 01:53:53,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:53:53,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 125 [2024-10-24 01:53:53,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:53,706 INFO L225 Difference]: With dead ends: 3624 [2024-10-24 01:53:53,707 INFO L226 Difference]: Without dead ends: 2465 [2024-10-24 01:53:53,709 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 [2024-10-24 01:53:53,710 INFO L432 NwaCegarLoop]: 435 mSDtfsCounter, 131 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:53,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 731 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:53:53,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2024-10-24 01:53:53,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 2437. [2024-10-24 01:53:53,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2437 states, 2436 states have (on average 1.5603448275862069) internal successors, (3801), 2436 states have internal predecessors, (3801), 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) [2024-10-24 01:53:53,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2437 states to 2437 states and 3801 transitions. [2024-10-24 01:53:53,753 INFO L78 Accepts]: Start accepts. Automaton has 2437 states and 3801 transitions. Word has length 125 [2024-10-24 01:53:53,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:53,754 INFO L471 AbstractCegarLoop]: Abstraction has 2437 states and 3801 transitions. [2024-10-24 01:53:53,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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) [2024-10-24 01:53:53,754 INFO L276 IsEmpty]: Start isEmpty. Operand 2437 states and 3801 transitions. [2024-10-24 01:53:53,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-24 01:53:53,755 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:53,756 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] [2024-10-24 01:53:53,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 01:53:53,756 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:53,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:53,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1385111397, now seen corresponding path program 1 times [2024-10-24 01:53:53,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:53,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536802973] [2024-10-24 01:53:53,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:53,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:53,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:53,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:53,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:53,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536802973] [2024-10-24 01:53:53,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536802973] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:53,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:53,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 01:53:53,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728424675] [2024-10-24 01:53:53,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:53,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 01:53:53,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:53,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 01:53:53,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-24 01:53:53,991 INFO L87 Difference]: Start difference. First operand 2437 states and 3801 transitions. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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) [2024-10-24 01:53:54,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:54,281 INFO L93 Difference]: Finished difference Result 5238 states and 8224 transitions. [2024-10-24 01:53:54,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 01:53:54,281 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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 125 [2024-10-24 01:53:54,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:54,292 INFO L225 Difference]: With dead ends: 5238 [2024-10-24 01:53:54,292 INFO L226 Difference]: Without dead ends: 4897 [2024-10-24 01:53:54,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:53:54,294 INFO L432 NwaCegarLoop]: 569 mSDtfsCounter, 2947 mSDsluCounter, 3087 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2947 SdHoareTripleChecker+Valid, 3656 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:54,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2947 Valid, 3656 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:53:54,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4897 states. [2024-10-24 01:53:54,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4897 to 2782. [2024-10-24 01:53:54,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2782 states, 2781 states have (on average 1.56274721323265) internal successors, (4346), 2781 states have internal predecessors, (4346), 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) [2024-10-24 01:53:54,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 4346 transitions. [2024-10-24 01:53:54,342 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 4346 transitions. Word has length 125 [2024-10-24 01:53:54,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:54,342 INFO L471 AbstractCegarLoop]: Abstraction has 2782 states and 4346 transitions. [2024-10-24 01:53:54,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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) [2024-10-24 01:53:54,343 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 4346 transitions. [2024-10-24 01:53:54,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-24 01:53:54,344 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:54,344 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] [2024-10-24 01:53:54,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 01:53:54,345 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:54,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:54,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1024323785, now seen corresponding path program 1 times [2024-10-24 01:53:54,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:54,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149620818] [2024-10-24 01:53:54,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:54,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:54,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:54,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:54,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:54,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149620818] [2024-10-24 01:53:54,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149620818] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:54,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:54,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 01:53:54,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649391844] [2024-10-24 01:53:54,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:54,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 01:53:54,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:54,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 01:53:54,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-24 01:53:54,602 INFO L87 Difference]: Start difference. First operand 2782 states and 4346 transitions. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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) [2024-10-24 01:53:54,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:54,889 INFO L93 Difference]: Finished difference Result 5583 states and 8769 transitions. [2024-10-24 01:53:54,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 01:53:54,890 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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 125 [2024-10-24 01:53:54,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:54,902 INFO L225 Difference]: With dead ends: 5583 [2024-10-24 01:53:54,904 INFO L226 Difference]: Without dead ends: 5242 [2024-10-24 01:53:54,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:53:54,907 INFO L432 NwaCegarLoop]: 577 mSDtfsCounter, 3051 mSDsluCounter, 3854 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3051 SdHoareTripleChecker+Valid, 4431 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:54,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3051 Valid, 4431 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:53:54,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5242 states. [2024-10-24 01:53:54,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5242 to 3132. [2024-10-24 01:53:54,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 1.5646758224209518) internal successors, (4899), 3131 states have internal predecessors, (4899), 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) [2024-10-24 01:53:54,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 4899 transitions. [2024-10-24 01:53:54,967 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 4899 transitions. Word has length 125 [2024-10-24 01:53:54,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:54,967 INFO L471 AbstractCegarLoop]: Abstraction has 3132 states and 4899 transitions. [2024-10-24 01:53:54,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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) [2024-10-24 01:53:54,968 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 4899 transitions. [2024-10-24 01:53:54,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-24 01:53:54,969 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:54,969 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] [2024-10-24 01:53:54,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 01:53:54,969 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:54,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:54,969 INFO L85 PathProgramCache]: Analyzing trace with hash 2113520829, now seen corresponding path program 1 times [2024-10-24 01:53:54,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:54,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958693511] [2024-10-24 01:53:54,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:54,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:55,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:55,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:55,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:55,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958693511] [2024-10-24 01:53:55,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958693511] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:55,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:55,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 01:53:55,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053721347] [2024-10-24 01:53:55,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:55,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 01:53:55,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:55,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 01:53:55,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-24 01:53:55,179 INFO L87 Difference]: Start difference. First operand 3132 states and 4899 transitions. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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) [2024-10-24 01:53:55,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:55,462 INFO L93 Difference]: Finished difference Result 5943 states and 9338 transitions. [2024-10-24 01:53:55,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 01:53:55,462 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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 125 [2024-10-24 01:53:55,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:55,478 INFO L225 Difference]: With dead ends: 5943 [2024-10-24 01:53:55,478 INFO L226 Difference]: Without dead ends: 5602 [2024-10-24 01:53:55,481 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:53:55,483 INFO L432 NwaCegarLoop]: 484 mSDtfsCounter, 3388 mSDsluCounter, 4153 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3388 SdHoareTripleChecker+Valid, 4637 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:55,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3388 Valid, 4637 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:53:55,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5602 states. [2024-10-24 01:53:55,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5602 to 3497. [2024-10-24 01:53:55,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3497 states, 3496 states have (on average 1.5663615560640731) internal successors, (5476), 3496 states have internal predecessors, (5476), 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) [2024-10-24 01:53:55,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3497 states to 3497 states and 5476 transitions. [2024-10-24 01:53:55,559 INFO L78 Accepts]: Start accepts. Automaton has 3497 states and 5476 transitions. Word has length 125 [2024-10-24 01:53:55,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:55,560 INFO L471 AbstractCegarLoop]: Abstraction has 3497 states and 5476 transitions. [2024-10-24 01:53:55,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 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) [2024-10-24 01:53:55,560 INFO L276 IsEmpty]: Start isEmpty. Operand 3497 states and 5476 transitions. [2024-10-24 01:53:55,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-24 01:53:55,561 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:55,561 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] [2024-10-24 01:53:55,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 01:53:55,562 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:55,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:55,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1992008050, now seen corresponding path program 1 times [2024-10-24 01:53:55,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:55,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559643552] [2024-10-24 01:53:55,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:55,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:55,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:55,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:55,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:55,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559643552] [2024-10-24 01:53:55,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559643552] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:55,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:55,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:53:55,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629454825] [2024-10-24 01:53:55,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:55,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:53:55,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:55,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:53:55,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:53:55,672 INFO L87 Difference]: Start difference. First operand 3497 states and 5476 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 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) [2024-10-24 01:53:55,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:55,810 INFO L93 Difference]: Finished difference Result 6912 states and 10865 transitions. [2024-10-24 01:53:55,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:53:55,811 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 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 126 [2024-10-24 01:53:55,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:55,816 INFO L225 Difference]: With dead ends: 6912 [2024-10-24 01:53:55,816 INFO L226 Difference]: Without dead ends: 3497 [2024-10-24 01:53:55,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:53:55,820 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 808 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:55,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 203 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:53:55,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3497 states. [2024-10-24 01:53:55,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3497 to 3497. [2024-10-24 01:53:55,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3497 states, 3496 states have (on average 1.5552059496567505) internal successors, (5437), 3496 states have internal predecessors, (5437), 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) [2024-10-24 01:53:55,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3497 states to 3497 states and 5437 transitions. [2024-10-24 01:53:55,851 INFO L78 Accepts]: Start accepts. Automaton has 3497 states and 5437 transitions. Word has length 126 [2024-10-24 01:53:55,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:55,851 INFO L471 AbstractCegarLoop]: Abstraction has 3497 states and 5437 transitions. [2024-10-24 01:53:55,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 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) [2024-10-24 01:53:55,852 INFO L276 IsEmpty]: Start isEmpty. Operand 3497 states and 5437 transitions. [2024-10-24 01:53:55,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-24 01:53:55,853 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:55,853 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] [2024-10-24 01:53:55,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 01:53:55,853 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:55,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:55,853 INFO L85 PathProgramCache]: Analyzing trace with hash 785268394, now seen corresponding path program 1 times [2024-10-24 01:53:55,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:55,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314579511] [2024-10-24 01:53:55,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:55,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:55,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:55,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:55,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:55,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314579511] [2024-10-24 01:53:55,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314579511] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:55,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:55,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:53:55,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504448247] [2024-10-24 01:53:55,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:55,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:53:55,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:55,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:53:55,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:53:55,954 INFO L87 Difference]: Start difference. First operand 3497 states and 5437 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 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) [2024-10-24 01:53:56,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:56,113 INFO L93 Difference]: Finished difference Result 6920 states and 10797 transitions. [2024-10-24 01:53:56,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:53:56,113 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 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 127 [2024-10-24 01:53:56,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:56,118 INFO L225 Difference]: With dead ends: 6920 [2024-10-24 01:53:56,118 INFO L226 Difference]: Without dead ends: 3497 [2024-10-24 01:53:56,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:53:56,121 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 824 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:56,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [824 Valid, 187 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:53:56,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3497 states. [2024-10-24 01:53:56,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3497 to 3497. [2024-10-24 01:53:56,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3497 states, 3496 states have (on average 1.544050343249428) internal successors, (5398), 3496 states have internal predecessors, (5398), 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) [2024-10-24 01:53:56,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3497 states to 3497 states and 5398 transitions. [2024-10-24 01:53:56,158 INFO L78 Accepts]: Start accepts. Automaton has 3497 states and 5398 transitions. Word has length 127 [2024-10-24 01:53:56,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:56,159 INFO L471 AbstractCegarLoop]: Abstraction has 3497 states and 5398 transitions. [2024-10-24 01:53:56,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 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) [2024-10-24 01:53:56,159 INFO L276 IsEmpty]: Start isEmpty. Operand 3497 states and 5398 transitions. [2024-10-24 01:53:56,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-24 01:53:56,160 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:56,160 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] [2024-10-24 01:53:56,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 01:53:56,161 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:56,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:56,161 INFO L85 PathProgramCache]: Analyzing trace with hash -883491726, now seen corresponding path program 1 times [2024-10-24 01:53:56,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:56,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409677968] [2024-10-24 01:53:56,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:56,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:56,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:56,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:56,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:56,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409677968] [2024-10-24 01:53:56,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409677968] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:56,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:56,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:53:56,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340342456] [2024-10-24 01:53:56,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:56,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:53:56,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:56,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:53:56,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:53:56,257 INFO L87 Difference]: Start difference. First operand 3497 states and 5398 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 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) [2024-10-24 01:53:56,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:56,394 INFO L93 Difference]: Finished difference Result 6916 states and 10715 transitions. [2024-10-24 01:53:56,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:53:56,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 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 128 [2024-10-24 01:53:56,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:56,399 INFO L225 Difference]: With dead ends: 6916 [2024-10-24 01:53:56,399 INFO L226 Difference]: Without dead ends: 3497 [2024-10-24 01:53:56,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:53:56,402 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 806 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:56,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 195 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:53:56,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3497 states. [2024-10-24 01:53:56,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3497 to 3497. [2024-10-24 01:53:56,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3497 states, 3496 states have (on average 1.5328947368421053) internal successors, (5359), 3496 states have internal predecessors, (5359), 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) [2024-10-24 01:53:56,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3497 states to 3497 states and 5359 transitions. [2024-10-24 01:53:56,435 INFO L78 Accepts]: Start accepts. Automaton has 3497 states and 5359 transitions. Word has length 128 [2024-10-24 01:53:56,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:56,436 INFO L471 AbstractCegarLoop]: Abstraction has 3497 states and 5359 transitions. [2024-10-24 01:53:56,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 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) [2024-10-24 01:53:56,436 INFO L276 IsEmpty]: Start isEmpty. Operand 3497 states and 5359 transitions. [2024-10-24 01:53:56,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-24 01:53:56,437 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:56,437 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] [2024-10-24 01:53:56,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 01:53:56,437 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:56,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:56,438 INFO L85 PathProgramCache]: Analyzing trace with hash -386540362, now seen corresponding path program 1 times [2024-10-24 01:53:56,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:56,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699881723] [2024-10-24 01:53:56,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:56,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:56,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:56,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:56,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699881723] [2024-10-24 01:53:56,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699881723] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:56,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:56,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:53:56,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912991186] [2024-10-24 01:53:56,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:56,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:53:56,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:56,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:53:56,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:53:56,559 INFO L87 Difference]: Start difference. First operand 3497 states and 5359 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 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) [2024-10-24 01:53:56,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:56,704 INFO L93 Difference]: Finished difference Result 6924 states and 10646 transitions. [2024-10-24 01:53:56,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:53:56,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 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 129 [2024-10-24 01:53:56,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:56,709 INFO L225 Difference]: With dead ends: 6924 [2024-10-24 01:53:56,709 INFO L226 Difference]: Without dead ends: 3497 [2024-10-24 01:53:56,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:53:56,713 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 823 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:56,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 179 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:53:56,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3497 states. [2024-10-24 01:53:56,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3497 to 3497. [2024-10-24 01:53:56,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3497 states, 3496 states have (on average 1.5217391304347827) internal successors, (5320), 3496 states have internal predecessors, (5320), 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) [2024-10-24 01:53:56,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3497 states to 3497 states and 5320 transitions. [2024-10-24 01:53:56,759 INFO L78 Accepts]: Start accepts. Automaton has 3497 states and 5320 transitions. Word has length 129 [2024-10-24 01:53:56,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:56,759 INFO L471 AbstractCegarLoop]: Abstraction has 3497 states and 5320 transitions. [2024-10-24 01:53:56,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 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) [2024-10-24 01:53:56,759 INFO L276 IsEmpty]: Start isEmpty. Operand 3497 states and 5320 transitions. [2024-10-24 01:53:56,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-24 01:53:56,761 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:56,761 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] [2024-10-24 01:53:56,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 01:53:56,762 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:56,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:56,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1933555338, now seen corresponding path program 1 times [2024-10-24 01:53:56,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:56,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501843850] [2024-10-24 01:53:56,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:56,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:56,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:56,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:56,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:56,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501843850] [2024-10-24 01:53:56,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501843850] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:56,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:56,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:53:56,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670774871] [2024-10-24 01:53:56,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:56,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:53:56,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:56,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:53:56,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:53:56,878 INFO L87 Difference]: Start difference. First operand 3497 states and 5320 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 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) [2024-10-24 01:53:57,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:57,098 INFO L93 Difference]: Finished difference Result 10284 states and 15724 transitions. [2024-10-24 01:53:57,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:53:57,098 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 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 130 [2024-10-24 01:53:57,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:57,106 INFO L225 Difference]: With dead ends: 10284 [2024-10-24 01:53:57,107 INFO L226 Difference]: Without dead ends: 6853 [2024-10-24 01:53:57,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:53:57,110 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 1206 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:57,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1206 Valid, 272 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:53:57,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6853 states. [2024-10-24 01:53:57,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6853 to 6851. [2024-10-24 01:53:57,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6851 states, 6850 states have (on average 1.5227737226277371) internal successors, (10431), 6850 states have internal predecessors, (10431), 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) [2024-10-24 01:53:57,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6851 states to 6851 states and 10431 transitions. [2024-10-24 01:53:57,181 INFO L78 Accepts]: Start accepts. Automaton has 6851 states and 10431 transitions. Word has length 130 [2024-10-24 01:53:57,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:57,181 INFO L471 AbstractCegarLoop]: Abstraction has 6851 states and 10431 transitions. [2024-10-24 01:53:57,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 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) [2024-10-24 01:53:57,181 INFO L276 IsEmpty]: Start isEmpty. Operand 6851 states and 10431 transitions. [2024-10-24 01:53:57,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-24 01:53:57,183 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:57,183 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] [2024-10-24 01:53:57,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 01:53:57,183 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:57,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:57,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1642385470, now seen corresponding path program 1 times [2024-10-24 01:53:57,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:57,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495887458] [2024-10-24 01:53:57,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:57,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:57,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:57,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:57,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495887458] [2024-10-24 01:53:57,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495887458] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:57,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:57,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:53:57,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231818878] [2024-10-24 01:53:57,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:57,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:53:57,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:57,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:53:57,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:53:57,289 INFO L87 Difference]: Start difference. First operand 6851 states and 10431 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2024-10-24 01:53:57,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:57,420 INFO L93 Difference]: Finished difference Result 13612 states and 20770 transitions. [2024-10-24 01:53:57,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:53:57,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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 131 [2024-10-24 01:53:57,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:57,429 INFO L225 Difference]: With dead ends: 13612 [2024-10-24 01:53:57,429 INFO L226 Difference]: Without dead ends: 6851 [2024-10-24 01:53:57,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:53:57,436 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 754 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:57,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 219 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:53:57,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6851 states. [2024-10-24 01:53:57,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6851 to 6851. [2024-10-24 01:53:57,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6851 states, 6850 states have (on average 1.5115328467153284) internal successors, (10354), 6850 states have internal predecessors, (10354), 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) [2024-10-24 01:53:57,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6851 states to 6851 states and 10354 transitions. [2024-10-24 01:53:57,511 INFO L78 Accepts]: Start accepts. Automaton has 6851 states and 10354 transitions. Word has length 131 [2024-10-24 01:53:57,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:57,511 INFO L471 AbstractCegarLoop]: Abstraction has 6851 states and 10354 transitions. [2024-10-24 01:53:57,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 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) [2024-10-24 01:53:57,512 INFO L276 IsEmpty]: Start isEmpty. Operand 6851 states and 10354 transitions. [2024-10-24 01:53:57,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-24 01:53:57,513 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:57,513 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] [2024-10-24 01:53:57,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 01:53:57,514 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:57,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:57,514 INFO L85 PathProgramCache]: Analyzing trace with hash -2090774950, now seen corresponding path program 1 times [2024-10-24 01:53:57,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:57,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114570070] [2024-10-24 01:53:57,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:57,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:57,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:57,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:57,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:57,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114570070] [2024-10-24 01:53:57,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114570070] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:57,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:57,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:53:57,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890549397] [2024-10-24 01:53:57,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:57,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:53:57,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:57,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:53:57,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:53:57,627 INFO L87 Difference]: Start difference. First operand 6851 states and 10354 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 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) [2024-10-24 01:53:57,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:57,759 INFO L93 Difference]: Finished difference Result 13616 states and 20621 transitions. [2024-10-24 01:53:57,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:53:57,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 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 132 [2024-10-24 01:53:57,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:57,769 INFO L225 Difference]: With dead ends: 13616 [2024-10-24 01:53:57,769 INFO L226 Difference]: Without dead ends: 6851 [2024-10-24 01:53:57,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:53:57,776 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 759 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:57,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 211 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:53:57,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6851 states. [2024-10-24 01:53:57,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6851 to 6851. [2024-10-24 01:53:57,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6851 states, 6850 states have (on average 1.5002919708029196) internal successors, (10277), 6850 states have internal predecessors, (10277), 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) [2024-10-24 01:53:57,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6851 states to 6851 states and 10277 transitions. [2024-10-24 01:53:57,862 INFO L78 Accepts]: Start accepts. Automaton has 6851 states and 10277 transitions. Word has length 132 [2024-10-24 01:53:57,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:57,863 INFO L471 AbstractCegarLoop]: Abstraction has 6851 states and 10277 transitions. [2024-10-24 01:53:57,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 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) [2024-10-24 01:53:57,863 INFO L276 IsEmpty]: Start isEmpty. Operand 6851 states and 10277 transitions. [2024-10-24 01:53:57,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-24 01:53:57,864 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:57,864 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] [2024-10-24 01:53:57,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 01:53:57,865 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:57,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:57,865 INFO L85 PathProgramCache]: Analyzing trace with hash 81654734, now seen corresponding path program 1 times [2024-10-24 01:53:57,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:57,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333560513] [2024-10-24 01:53:57,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:57,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:57,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:57,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:57,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333560513] [2024-10-24 01:53:57,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333560513] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:57,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:57,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:53:57,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377476713] [2024-10-24 01:53:57,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:57,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:53:57,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:57,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:53:57,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:53:57,960 INFO L87 Difference]: Start difference. First operand 6851 states and 10277 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 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) [2024-10-24 01:53:58,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:58,094 INFO L93 Difference]: Finished difference Result 13608 states and 20459 transitions. [2024-10-24 01:53:58,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:53:58,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 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 133 [2024-10-24 01:53:58,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:58,101 INFO L225 Difference]: With dead ends: 13608 [2024-10-24 01:53:58,102 INFO L226 Difference]: Without dead ends: 6851 [2024-10-24 01:53:58,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:53:58,109 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 730 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:58,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 231 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:53:58,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6851 states. [2024-10-24 01:53:58,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6851 to 6851. [2024-10-24 01:53:58,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6851 states, 6850 states have (on average 1.489051094890511) internal successors, (10200), 6850 states have internal predecessors, (10200), 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) [2024-10-24 01:53:58,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6851 states to 6851 states and 10200 transitions. [2024-10-24 01:53:58,170 INFO L78 Accepts]: Start accepts. Automaton has 6851 states and 10200 transitions. Word has length 133 [2024-10-24 01:53:58,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:58,171 INFO L471 AbstractCegarLoop]: Abstraction has 6851 states and 10200 transitions. [2024-10-24 01:53:58,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 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) [2024-10-24 01:53:58,171 INFO L276 IsEmpty]: Start isEmpty. Operand 6851 states and 10200 transitions. [2024-10-24 01:53:58,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-24 01:53:58,172 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:58,172 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] [2024-10-24 01:53:58,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 01:53:58,173 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:58,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:58,173 INFO L85 PathProgramCache]: Analyzing trace with hash 2131993922, now seen corresponding path program 1 times [2024-10-24 01:53:58,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:58,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269181348] [2024-10-24 01:53:58,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:58,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:58,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:58,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:58,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:58,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269181348] [2024-10-24 01:53:58,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269181348] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:58,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:58,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:53:58,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592195972] [2024-10-24 01:53:58,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:58,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:53:58,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:58,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:53:58,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:53:58,419 INFO L87 Difference]: Start difference. First operand 6851 states and 10200 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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) [2024-10-24 01:53:58,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:58,451 INFO L93 Difference]: Finished difference Result 6889 states and 10255 transitions. [2024-10-24 01:53:58,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:53:58,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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 134 [2024-10-24 01:53:58,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:58,456 INFO L225 Difference]: With dead ends: 6889 [2024-10-24 01:53:58,456 INFO L226 Difference]: Without dead ends: 6887 [2024-10-24 01:53:58,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:53:58,457 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 0 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:58,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1156 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:53:58,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6887 states. [2024-10-24 01:53:58,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6887 to 6887. [2024-10-24 01:53:58,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6887 states, 6886 states have (on average 1.4835898925355795) internal successors, (10216), 6886 states have internal predecessors, (10216), 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) [2024-10-24 01:53:58,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6887 states to 6887 states and 10216 transitions. [2024-10-24 01:53:58,520 INFO L78 Accepts]: Start accepts. Automaton has 6887 states and 10216 transitions. Word has length 134 [2024-10-24 01:53:58,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:58,520 INFO L471 AbstractCegarLoop]: Abstraction has 6887 states and 10216 transitions. [2024-10-24 01:53:58,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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) [2024-10-24 01:53:58,520 INFO L276 IsEmpty]: Start isEmpty. Operand 6887 states and 10216 transitions. [2024-10-24 01:53:58,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-24 01:53:58,522 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:58,522 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] [2024-10-24 01:53:58,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 01:53:58,522 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:58,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:58,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1990664578, now seen corresponding path program 1 times [2024-10-24 01:53:58,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:58,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181893174] [2024-10-24 01:53:58,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:58,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:53:59,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:53:59,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:53:59,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181893174] [2024-10-24 01:53:59,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181893174] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:53:59,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:53:59,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 01:53:59,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621543043] [2024-10-24 01:53:59,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:53:59,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 01:53:59,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:53:59,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 01:53:59,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:53:59,057 INFO L87 Difference]: Start difference. First operand 6887 states and 10216 transitions. Second operand has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 11 states have internal predecessors, (134), 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) [2024-10-24 01:53:59,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:53:59,727 INFO L93 Difference]: Finished difference Result 20389 states and 30244 transitions. [2024-10-24 01:53:59,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:53:59,727 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 11 states have internal predecessors, (134), 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 134 [2024-10-24 01:53:59,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:53:59,740 INFO L225 Difference]: With dead ends: 20389 [2024-10-24 01:53:59,740 INFO L226 Difference]: Without dead ends: 13729 [2024-10-24 01:53:59,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2024-10-24 01:53:59,748 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 883 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:53:59,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 987 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 01:53:59,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13729 states. [2024-10-24 01:53:59,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13729 to 6887. [2024-10-24 01:53:59,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6887 states, 6886 states have (on average 1.4822828928260239) internal successors, (10207), 6886 states have internal predecessors, (10207), 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) [2024-10-24 01:53:59,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6887 states to 6887 states and 10207 transitions. [2024-10-24 01:53:59,830 INFO L78 Accepts]: Start accepts. Automaton has 6887 states and 10207 transitions. Word has length 134 [2024-10-24 01:53:59,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:53:59,830 INFO L471 AbstractCegarLoop]: Abstraction has 6887 states and 10207 transitions. [2024-10-24 01:53:59,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.166666666666666) internal successors, (134), 11 states have internal predecessors, (134), 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) [2024-10-24 01:53:59,830 INFO L276 IsEmpty]: Start isEmpty. Operand 6887 states and 10207 transitions. [2024-10-24 01:53:59,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-24 01:53:59,832 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:53:59,832 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] [2024-10-24 01:53:59,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 01:53:59,832 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:53:59,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:53:59,832 INFO L85 PathProgramCache]: Analyzing trace with hash 461092759, now seen corresponding path program 1 times [2024-10-24 01:53:59,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:53:59,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305785366] [2024-10-24 01:53:59,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:53:59,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:53:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:54:00,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:54:00,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:54:00,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305785366] [2024-10-24 01:54:00,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305785366] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:54:00,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:54:00,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 01:54:00,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735303892] [2024-10-24 01:54:00,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:54:00,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 01:54:00,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:54:00,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 01:54:00,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-10-24 01:54:00,246 INFO L87 Difference]: Start difference. First operand 6887 states and 10207 transitions. Second operand has 13 states, 13 states have (on average 10.384615384615385) internal successors, (135), 12 states have internal predecessors, (135), 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) [2024-10-24 01:54:00,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:54:00,915 INFO L93 Difference]: Finished difference Result 20580 states and 30383 transitions. [2024-10-24 01:54:00,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 01:54:00,916 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.384615384615385) internal successors, (135), 12 states have internal predecessors, (135), 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 135 [2024-10-24 01:54:00,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:54:00,929 INFO L225 Difference]: With dead ends: 20580 [2024-10-24 01:54:00,930 INFO L226 Difference]: Without dead ends: 14032 [2024-10-24 01:54:00,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=151, Invalid=499, Unknown=0, NotChecked=0, Total=650 [2024-10-24 01:54:00,939 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 1349 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 1067 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1349 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 01:54:00,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1349 Valid, 1092 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1067 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 01:54:00,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14032 states. [2024-10-24 01:54:01,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14032 to 7010. [2024-10-24 01:54:01,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7010 states, 7009 states have (on average 1.480667712940505) internal successors, (10378), 7009 states have internal predecessors, (10378), 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) [2024-10-24 01:54:01,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7010 states to 7010 states and 10378 transitions. [2024-10-24 01:54:01,070 INFO L78 Accepts]: Start accepts. Automaton has 7010 states and 10378 transitions. Word has length 135 [2024-10-24 01:54:01,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:54:01,071 INFO L471 AbstractCegarLoop]: Abstraction has 7010 states and 10378 transitions. [2024-10-24 01:54:01,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.384615384615385) internal successors, (135), 12 states have internal predecessors, (135), 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) [2024-10-24 01:54:01,071 INFO L276 IsEmpty]: Start isEmpty. Operand 7010 states and 10378 transitions. [2024-10-24 01:54:01,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-24 01:54:01,072 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:54:01,072 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] [2024-10-24 01:54:01,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 01:54:01,073 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:54:01,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:54:01,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1675450013, now seen corresponding path program 1 times [2024-10-24 01:54:01,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:54:01,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113152260] [2024-10-24 01:54:01,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:54:01,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:54:01,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:54:01,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:54:01,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:54:01,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113152260] [2024-10-24 01:54:01,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113152260] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:54:01,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:54:01,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 01:54:01,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433390937] [2024-10-24 01:54:01,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:54:01,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 01:54:01,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:54:01,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 01:54:01,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:54:01,417 INFO L87 Difference]: Start difference. First operand 7010 states and 10378 transitions. Second operand has 12 states, 12 states have (on average 11.25) internal successors, (135), 11 states have internal predecessors, (135), 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) [2024-10-24 01:54:01,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:54:01,998 INFO L93 Difference]: Finished difference Result 20629 states and 30562 transitions. [2024-10-24 01:54:01,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:54:01,998 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.25) internal successors, (135), 11 states have internal predecessors, (135), 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 135 [2024-10-24 01:54:01,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:54:02,009 INFO L225 Difference]: With dead ends: 20629 [2024-10-24 01:54:02,010 INFO L226 Difference]: Without dead ends: 13867 [2024-10-24 01:54:02,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2024-10-24 01:54:02,018 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 1500 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:54:02,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 893 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 01:54:02,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13867 states. [2024-10-24 01:54:02,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13867 to 7010. [2024-10-24 01:54:02,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7010 states, 7009 states have (on average 1.4793836495933799) internal successors, (10369), 7009 states have internal predecessors, (10369), 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) [2024-10-24 01:54:02,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7010 states to 7010 states and 10369 transitions. [2024-10-24 01:54:02,125 INFO L78 Accepts]: Start accepts. Automaton has 7010 states and 10369 transitions. Word has length 135 [2024-10-24 01:54:02,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:54:02,125 INFO L471 AbstractCegarLoop]: Abstraction has 7010 states and 10369 transitions. [2024-10-24 01:54:02,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.25) internal successors, (135), 11 states have internal predecessors, (135), 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) [2024-10-24 01:54:02,125 INFO L276 IsEmpty]: Start isEmpty. Operand 7010 states and 10369 transitions. [2024-10-24 01:54:02,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 01:54:02,127 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:54:02,127 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] [2024-10-24 01:54:02,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-24 01:54:02,127 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:54:02,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:54:02,128 INFO L85 PathProgramCache]: Analyzing trace with hash 47560194, now seen corresponding path program 1 times [2024-10-24 01:54:02,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:54:02,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080246380] [2024-10-24 01:54:02,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:54:02,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:54:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:54:02,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:54:02,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:54:02,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080246380] [2024-10-24 01:54:02,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080246380] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:54:02,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:54:02,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 01:54:02,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540825162] [2024-10-24 01:54:02,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:54:02,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 01:54:02,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:54:02,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 01:54:02,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:54:02,491 INFO L87 Difference]: Start difference. First operand 7010 states and 10369 transitions. Second operand has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 11 states have internal predecessors, (136), 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) [2024-10-24 01:54:03,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:54:03,137 INFO L93 Difference]: Finished difference Result 20393 states and 30158 transitions. [2024-10-24 01:54:03,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:54:03,138 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 11 states have internal predecessors, (136), 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 136 [2024-10-24 01:54:03,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:54:03,149 INFO L225 Difference]: With dead ends: 20393 [2024-10-24 01:54:03,149 INFO L226 Difference]: Without dead ends: 13913 [2024-10-24 01:54:03,154 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2024-10-24 01:54:03,155 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 1236 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 978 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1236 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:54:03,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1236 Valid, 1063 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 978 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 01:54:03,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13913 states. [2024-10-24 01:54:03,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13913 to 7061. [2024-10-24 01:54:03,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7061 states, 7060 states have (on average 1.478328611898017) internal successors, (10437), 7060 states have internal predecessors, (10437), 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) [2024-10-24 01:54:03,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7061 states to 7061 states and 10437 transitions. [2024-10-24 01:54:03,277 INFO L78 Accepts]: Start accepts. Automaton has 7061 states and 10437 transitions. Word has length 136 [2024-10-24 01:54:03,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:54:03,277 INFO L471 AbstractCegarLoop]: Abstraction has 7061 states and 10437 transitions. [2024-10-24 01:54:03,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 11 states have internal predecessors, (136), 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) [2024-10-24 01:54:03,277 INFO L276 IsEmpty]: Start isEmpty. Operand 7061 states and 10437 transitions. [2024-10-24 01:54:03,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-24 01:54:03,280 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:54:03,280 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] [2024-10-24 01:54:03,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 01:54:03,280 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:54:03,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:54:03,281 INFO L85 PathProgramCache]: Analyzing trace with hash -804236499, now seen corresponding path program 1 times [2024-10-24 01:54:03,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:54:03,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049876667] [2024-10-24 01:54:03,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:54:03,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:54:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:54:03,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:54:03,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:54:03,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049876667] [2024-10-24 01:54:03,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049876667] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:54:03,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:54:03,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:54:03,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735202423] [2024-10-24 01:54:03,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:54:03,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:54:03,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:54:03,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:54:03,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:54:03,412 INFO L87 Difference]: Start difference. First operand 7061 states and 10437 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2024-10-24 01:54:03,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:54:03,468 INFO L93 Difference]: Finished difference Result 19717 states and 29327 transitions. [2024-10-24 01:54:03,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:54:03,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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 137 [2024-10-24 01:54:03,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:54:03,482 INFO L225 Difference]: With dead ends: 19717 [2024-10-24 01:54:03,482 INFO L226 Difference]: Without dead ends: 13237 [2024-10-24 01:54:03,492 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 [2024-10-24 01:54:03,493 INFO L432 NwaCegarLoop]: 415 mSDtfsCounter, 158 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:54:03,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 640 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:54:03,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13237 states. [2024-10-24 01:54:03,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13237 to 12931. [2024-10-24 01:54:03,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12931 states, 12930 states have (on average 1.4745552977571539) internal successors, (19066), 12930 states have internal predecessors, (19066), 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) [2024-10-24 01:54:03,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12931 states to 12931 states and 19066 transitions. [2024-10-24 01:54:03,652 INFO L78 Accepts]: Start accepts. Automaton has 12931 states and 19066 transitions. Word has length 137 [2024-10-24 01:54:03,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:54:03,652 INFO L471 AbstractCegarLoop]: Abstraction has 12931 states and 19066 transitions. [2024-10-24 01:54:03,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2024-10-24 01:54:03,653 INFO L276 IsEmpty]: Start isEmpty. Operand 12931 states and 19066 transitions. [2024-10-24 01:54:03,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-24 01:54:03,654 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:54:03,654 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] [2024-10-24 01:54:03,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-24 01:54:03,654 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:54:03,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:54:03,655 INFO L85 PathProgramCache]: Analyzing trace with hash -919657171, now seen corresponding path program 1 times [2024-10-24 01:54:03,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:54:03,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075899205] [2024-10-24 01:54:03,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:54:03,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:54:03,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:54:04,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:54:04,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:54:04,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075899205] [2024-10-24 01:54:04,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075899205] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:54:04,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:54:04,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 01:54:04,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479578570] [2024-10-24 01:54:04,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:54:04,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 01:54:04,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:54:04,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 01:54:04,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:54:04,156 INFO L87 Difference]: Start difference. First operand 12931 states and 19066 transitions. Second operand has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 10 states have internal predecessors, (137), 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) [2024-10-24 01:54:04,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:54:04,898 INFO L93 Difference]: Finished difference Result 37854 states and 55954 transitions. [2024-10-24 01:54:04,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 01:54:04,899 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 10 states have internal predecessors, (137), 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 137 [2024-10-24 01:54:04,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:54:04,927 INFO L225 Difference]: With dead ends: 37854 [2024-10-24 01:54:04,927 INFO L226 Difference]: Without dead ends: 25504 [2024-10-24 01:54:04,941 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2024-10-24 01:54:04,942 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 1307 mSDsluCounter, 1375 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 1616 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 01:54:04,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 1616 Invalid, 1137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1126 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 01:54:04,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25504 states. [2024-10-24 01:54:05,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25504 to 13154. [2024-10-24 01:54:05,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13154 states, 13153 states have (on average 1.473124002128792) internal successors, (19376), 13153 states have internal predecessors, (19376), 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) [2024-10-24 01:54:05,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13154 states to 13154 states and 19376 transitions. [2024-10-24 01:54:05,116 INFO L78 Accepts]: Start accepts. Automaton has 13154 states and 19376 transitions. Word has length 137 [2024-10-24 01:54:05,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:54:05,117 INFO L471 AbstractCegarLoop]: Abstraction has 13154 states and 19376 transitions. [2024-10-24 01:54:05,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 10 states have internal predecessors, (137), 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) [2024-10-24 01:54:05,117 INFO L276 IsEmpty]: Start isEmpty. Operand 13154 states and 19376 transitions. [2024-10-24 01:54:05,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-24 01:54:05,118 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:54:05,119 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] [2024-10-24 01:54:05,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-24 01:54:05,119 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:54:05,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:54:05,119 INFO L85 PathProgramCache]: Analyzing trace with hash 194326099, now seen corresponding path program 1 times [2024-10-24 01:54:05,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:54:05,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977269132] [2024-10-24 01:54:05,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:54:05,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:54:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:54:05,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:54:05,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:54:05,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977269132] [2024-10-24 01:54:05,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977269132] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:54:05,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:54:05,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 01:54:05,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119893095] [2024-10-24 01:54:05,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:54:05,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 01:54:05,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:54:05,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 01:54:05,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:54:05,524 INFO L87 Difference]: Start difference. First operand 13154 states and 19376 transitions. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 10 states have internal predecessors, (138), 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) [2024-10-24 01:54:06,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:54:06,420 INFO L93 Difference]: Finished difference Result 39419 states and 57962 transitions. [2024-10-24 01:54:06,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 01:54:06,420 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 10 states have internal predecessors, (138), 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 138 [2024-10-24 01:54:06,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:54:06,446 INFO L225 Difference]: With dead ends: 39419 [2024-10-24 01:54:06,446 INFO L226 Difference]: Without dead ends: 26667 [2024-10-24 01:54:06,460 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=488, Unknown=0, NotChecked=0, Total=650 [2024-10-24 01:54:06,461 INFO L432 NwaCegarLoop]: 338 mSDtfsCounter, 1178 mSDsluCounter, 1832 mSDsCounter, 0 mSdLazyCounter, 1922 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 2170 SdHoareTripleChecker+Invalid, 1928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 01:54:06,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1178 Valid, 2170 Invalid, 1928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1922 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 01:54:06,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26667 states. [2024-10-24 01:54:06,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26667 to 12981. [2024-10-24 01:54:06,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12981 states, 12980 states have (on average 1.4742681047765793) internal successors, (19136), 12980 states have internal predecessors, (19136), 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) [2024-10-24 01:54:06,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12981 states to 12981 states and 19136 transitions. [2024-10-24 01:54:06,625 INFO L78 Accepts]: Start accepts. Automaton has 12981 states and 19136 transitions. Word has length 138 [2024-10-24 01:54:06,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:54:06,625 INFO L471 AbstractCegarLoop]: Abstraction has 12981 states and 19136 transitions. [2024-10-24 01:54:06,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 10 states have internal predecessors, (138), 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) [2024-10-24 01:54:06,625 INFO L276 IsEmpty]: Start isEmpty. Operand 12981 states and 19136 transitions. [2024-10-24 01:54:06,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-24 01:54:06,626 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:54:06,626 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] [2024-10-24 01:54:06,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-24 01:54:06,627 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:54:06,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:54:06,627 INFO L85 PathProgramCache]: Analyzing trace with hash 758154109, now seen corresponding path program 1 times [2024-10-24 01:54:06,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:54:06,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381919786] [2024-10-24 01:54:06,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:54:06,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:54:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:54:06,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:54:06,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:54:06,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381919786] [2024-10-24 01:54:06,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381919786] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:54:06,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:54:06,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 01:54:06,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636905] [2024-10-24 01:54:06,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:54:06,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 01:54:06,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:54:06,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 01:54:06,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:54:06,861 INFO L87 Difference]: Start difference. First operand 12981 states and 19136 transitions. Second operand has 9 states, 9 states have (on average 15.333333333333334) internal successors, (138), 8 states have internal predecessors, (138), 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) [2024-10-24 01:54:07,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:54:07,339 INFO L93 Difference]: Finished difference Result 38604 states and 56870 transitions. [2024-10-24 01:54:07,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 01:54:07,339 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.333333333333334) internal successors, (138), 8 states have internal predecessors, (138), 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 138 [2024-10-24 01:54:07,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:54:07,366 INFO L225 Difference]: With dead ends: 38604 [2024-10-24 01:54:07,366 INFO L226 Difference]: Without dead ends: 25977 [2024-10-24 01:54:07,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-10-24 01:54:07,381 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 624 mSDsluCounter, 970 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:54:07,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 1217 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:54:07,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25977 states. [2024-10-24 01:54:07,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25977 to 12981. [2024-10-24 01:54:07,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12981 states, 12980 states have (on average 1.473035439137134) internal successors, (19120), 12980 states have internal predecessors, (19120), 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) [2024-10-24 01:54:07,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12981 states to 12981 states and 19120 transitions. [2024-10-24 01:54:07,545 INFO L78 Accepts]: Start accepts. Automaton has 12981 states and 19120 transitions. Word has length 138 [2024-10-24 01:54:07,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:54:07,545 INFO L471 AbstractCegarLoop]: Abstraction has 12981 states and 19120 transitions. [2024-10-24 01:54:07,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.333333333333334) internal successors, (138), 8 states have internal predecessors, (138), 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) [2024-10-24 01:54:07,545 INFO L276 IsEmpty]: Start isEmpty. Operand 12981 states and 19120 transitions. [2024-10-24 01:54:07,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-24 01:54:07,547 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:54:07,547 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] [2024-10-24 01:54:07,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-24 01:54:07,547 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:54:07,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:54:07,547 INFO L85 PathProgramCache]: Analyzing trace with hash -286853989, now seen corresponding path program 1 times [2024-10-24 01:54:07,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:54:07,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749206852] [2024-10-24 01:54:07,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:54:07,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:54:07,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:54:07,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:54:07,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:54:07,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749206852] [2024-10-24 01:54:07,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749206852] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:54:07,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:54:07,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 01:54:07,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919306245] [2024-10-24 01:54:07,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:54:07,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 01:54:07,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:54:07,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 01:54:07,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:54:07,775 INFO L87 Difference]: Start difference. First operand 12981 states and 19120 transitions. Second operand has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 8 states have internal predecessors, (139), 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) [2024-10-24 01:54:08,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:54:08,379 INFO L93 Difference]: Finished difference Result 38459 states and 56622 transitions. [2024-10-24 01:54:08,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 01:54:08,379 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 8 states have internal predecessors, (139), 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 139 [2024-10-24 01:54:08,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:54:08,406 INFO L225 Difference]: With dead ends: 38459 [2024-10-24 01:54:08,406 INFO L226 Difference]: Without dead ends: 25912 [2024-10-24 01:54:08,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-10-24 01:54:08,422 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 887 mSDsluCounter, 955 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 1039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:54:08,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 1198 Invalid, 1039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 01:54:08,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25912 states. [2024-10-24 01:54:08,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25912 to 12981. [2024-10-24 01:54:08,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12981 states, 12980 states have (on average 1.4715716486902928) internal successors, (19101), 12980 states have internal predecessors, (19101), 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) [2024-10-24 01:54:08,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12981 states to 12981 states and 19101 transitions. [2024-10-24 01:54:08,640 INFO L78 Accepts]: Start accepts. Automaton has 12981 states and 19101 transitions. Word has length 139 [2024-10-24 01:54:08,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:54:08,641 INFO L471 AbstractCegarLoop]: Abstraction has 12981 states and 19101 transitions. [2024-10-24 01:54:08,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.444444444444445) internal successors, (139), 8 states have internal predecessors, (139), 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) [2024-10-24 01:54:08,641 INFO L276 IsEmpty]: Start isEmpty. Operand 12981 states and 19101 transitions. [2024-10-24 01:54:08,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-24 01:54:08,643 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:54:08,643 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] [2024-10-24 01:54:08,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-24 01:54:08,643 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:54:08,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:54:08,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1865074616, now seen corresponding path program 1 times [2024-10-24 01:54:08,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:54:08,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688817855] [2024-10-24 01:54:08,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:54:08,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:54:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:54:08,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:54:08,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:54:08,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688817855] [2024-10-24 01:54:08,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688817855] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:54:08,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:54:08,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 01:54:08,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998499419] [2024-10-24 01:54:08,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:54:08,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 01:54:08,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:54:08,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 01:54:08,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:54:08,934 INFO L87 Difference]: Start difference. First operand 12981 states and 19101 transitions. Second operand has 9 states, 9 states have (on average 15.555555555555555) internal successors, (140), 8 states have internal predecessors, (140), 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) [2024-10-24 01:54:09,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:54:09,387 INFO L93 Difference]: Finished difference Result 38284 states and 56323 transitions. [2024-10-24 01:54:09,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 01:54:09,387 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.555555555555555) internal successors, (140), 8 states have internal predecessors, (140), 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 140 [2024-10-24 01:54:09,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:54:09,410 INFO L225 Difference]: With dead ends: 38284 [2024-10-24 01:54:09,410 INFO L226 Difference]: Without dead ends: 25832 [2024-10-24 01:54:09,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-10-24 01:54:09,425 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 1117 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:54:09,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1117 Valid, 871 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:54:09,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25832 states. [2024-10-24 01:54:09,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25832 to 12981. [2024-10-24 01:54:09,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12981 states, 12980 states have (on average 1.4698767334360554) internal successors, (19079), 12980 states have internal predecessors, (19079), 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) [2024-10-24 01:54:09,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12981 states to 12981 states and 19079 transitions. [2024-10-24 01:54:09,651 INFO L78 Accepts]: Start accepts. Automaton has 12981 states and 19079 transitions. Word has length 140 [2024-10-24 01:54:09,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:54:09,651 INFO L471 AbstractCegarLoop]: Abstraction has 12981 states and 19079 transitions. [2024-10-24 01:54:09,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.555555555555555) internal successors, (140), 8 states have internal predecessors, (140), 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) [2024-10-24 01:54:09,651 INFO L276 IsEmpty]: Start isEmpty. Operand 12981 states and 19079 transitions. [2024-10-24 01:54:09,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 01:54:09,653 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:54:09,653 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] [2024-10-24 01:54:09,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-24 01:54:09,653 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:54:09,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:54:09,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1755716498, now seen corresponding path program 1 times [2024-10-24 01:54:09,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:54:09,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183174713] [2024-10-24 01:54:09,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:54:09,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:54:09,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:54:10,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:54:10,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:54:10,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183174713] [2024-10-24 01:54:10,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183174713] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:54:10,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:54:10,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 01:54:10,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787527094] [2024-10-24 01:54:10,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:54:10,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 01:54:10,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:54:10,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 01:54:10,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-24 01:54:10,219 INFO L87 Difference]: Start difference. First operand 12981 states and 19079 transitions. Second operand has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 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) [2024-10-24 01:54:10,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:54:10,751 INFO L93 Difference]: Finished difference Result 28310 states and 41704 transitions. [2024-10-24 01:54:10,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:54:10,751 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 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 141 [2024-10-24 01:54:10,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:54:10,777 INFO L225 Difference]: With dead ends: 28310 [2024-10-24 01:54:10,777 INFO L226 Difference]: Without dead ends: 25560 [2024-10-24 01:54:10,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-24 01:54:10,787 INFO L432 NwaCegarLoop]: 407 mSDtfsCounter, 1064 mSDsluCounter, 2888 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 3295 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:54:10,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1064 Valid, 3295 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:54:10,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25560 states. [2024-10-24 01:54:10,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25560 to 12897. [2024-10-24 01:54:10,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12897 states, 12896 states have (on average 1.470145781637717) internal successors, (18959), 12896 states have internal predecessors, (18959), 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) [2024-10-24 01:54:10,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12897 states to 12897 states and 18959 transitions. [2024-10-24 01:54:10,949 INFO L78 Accepts]: Start accepts. Automaton has 12897 states and 18959 transitions. Word has length 141 [2024-10-24 01:54:10,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:54:10,949 INFO L471 AbstractCegarLoop]: Abstraction has 12897 states and 18959 transitions. [2024-10-24 01:54:10,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 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) [2024-10-24 01:54:10,950 INFO L276 IsEmpty]: Start isEmpty. Operand 12897 states and 18959 transitions. [2024-10-24 01:54:10,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 01:54:10,951 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:54:10,951 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] [2024-10-24 01:54:10,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-24 01:54:10,951 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:54:10,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:54:10,952 INFO L85 PathProgramCache]: Analyzing trace with hash -559166580, now seen corresponding path program 1 times [2024-10-24 01:54:10,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:54:10,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075051778] [2024-10-24 01:54:10,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:54:10,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:54:11,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:54:14,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:54:14,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:54:14,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075051778] [2024-10-24 01:54:14,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075051778] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:54:14,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:54:14,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [] total 50 [2024-10-24 01:54:14,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001312104] [2024-10-24 01:54:14,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:54:14,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-10-24 01:54:14,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:54:14,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-10-24 01:54:14,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=2433, Unknown=0, NotChecked=0, Total=2550 [2024-10-24 01:54:14,971 INFO L87 Difference]: Start difference. First operand 12897 states and 18959 transitions. Second operand has 51 states, 51 states have (on average 2.764705882352941) internal successors, (141), 50 states have internal predecessors, (141), 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) [2024-10-24 01:54:31,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:54:31,899 INFO L93 Difference]: Finished difference Result 71871 states and 105793 transitions. [2024-10-24 01:54:31,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-10-24 01:54:31,899 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 2.764705882352941) internal successors, (141), 50 states have internal predecessors, (141), 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 141 [2024-10-24 01:54:31,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:54:31,972 INFO L225 Difference]: With dead ends: 71871 [2024-10-24 01:54:31,972 INFO L226 Difference]: Without dead ends: 69269 [2024-10-24 01:54:31,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1251 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=1100, Invalid=8020, Unknown=0, NotChecked=0, Total=9120 [2024-10-24 01:54:31,992 INFO L432 NwaCegarLoop]: 1093 mSDtfsCounter, 3755 mSDsluCounter, 32571 mSDsCounter, 0 mSdLazyCounter, 21662 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3755 SdHoareTripleChecker+Valid, 33664 SdHoareTripleChecker+Invalid, 21664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:54:31,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3755 Valid, 33664 Invalid, 21664 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 21662 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2024-10-24 01:54:32,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69269 states. [2024-10-24 01:54:32,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69269 to 12924. [2024-10-24 01:54:32,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12924 states, 12923 states have (on average 1.4698599396424978) internal successors, (18995), 12923 states have internal predecessors, (18995), 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) [2024-10-24 01:54:32,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12924 states to 12924 states and 18995 transitions. [2024-10-24 01:54:32,356 INFO L78 Accepts]: Start accepts. Automaton has 12924 states and 18995 transitions. Word has length 141 [2024-10-24 01:54:32,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:54:32,356 INFO L471 AbstractCegarLoop]: Abstraction has 12924 states and 18995 transitions. [2024-10-24 01:54:32,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 2.764705882352941) internal successors, (141), 50 states have internal predecessors, (141), 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) [2024-10-24 01:54:32,357 INFO L276 IsEmpty]: Start isEmpty. Operand 12924 states and 18995 transitions. [2024-10-24 01:54:32,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 01:54:32,358 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:54:32,358 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] [2024-10-24 01:54:32,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-24 01:54:32,358 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:54:32,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:54:32,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1906701457, now seen corresponding path program 1 times [2024-10-24 01:54:32,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:54:32,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465422581] [2024-10-24 01:54:32,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:54:32,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:54:32,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:54:32,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:54:32,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:54:32,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465422581] [2024-10-24 01:54:32,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465422581] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:54:32,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:54:32,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 01:54:32,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366543302] [2024-10-24 01:54:32,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:54:32,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 01:54:32,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:54:32,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 01:54:32,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-24 01:54:32,915 INFO L87 Difference]: Start difference. First operand 12924 states and 18995 transitions. Second operand has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 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) [2024-10-24 01:54:33,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:54:33,472 INFO L93 Difference]: Finished difference Result 28109 states and 41424 transitions. [2024-10-24 01:54:33,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:54:33,472 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 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 141 [2024-10-24 01:54:33,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:54:33,500 INFO L225 Difference]: With dead ends: 28109 [2024-10-24 01:54:33,500 INFO L226 Difference]: Without dead ends: 25444 [2024-10-24 01:54:33,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-24 01:54:33,511 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 1273 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1273 SdHoareTripleChecker+Valid, 2092 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:54:33,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1273 Valid, 2092 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:54:33,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25444 states. [2024-10-24 01:54:33,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25444 to 12889. [2024-10-24 01:54:33,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12889 states, 12888 states have (on average 1.4691961514587213) internal successors, (18935), 12888 states have internal predecessors, (18935), 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) [2024-10-24 01:54:33,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12889 states to 12889 states and 18935 transitions. [2024-10-24 01:54:33,763 INFO L78 Accepts]: Start accepts. Automaton has 12889 states and 18935 transitions. Word has length 141 [2024-10-24 01:54:33,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:54:33,763 INFO L471 AbstractCegarLoop]: Abstraction has 12889 states and 18935 transitions. [2024-10-24 01:54:33,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 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) [2024-10-24 01:54:33,763 INFO L276 IsEmpty]: Start isEmpty. Operand 12889 states and 18935 transitions. [2024-10-24 01:54:33,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 01:54:33,765 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:54:33,765 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] [2024-10-24 01:54:33,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-24 01:54:33,765 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:54:33,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:54:33,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1678267635, now seen corresponding path program 1 times [2024-10-24 01:54:33,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:54:33,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851438466] [2024-10-24 01:54:33,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:54:33,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:54:33,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:54:37,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:54:37,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:54:37,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851438466] [2024-10-24 01:54:37,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851438466] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:54:37,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:54:37,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [51] imperfect sequences [] total 51 [2024-10-24 01:54:37,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570829956] [2024-10-24 01:54:37,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:54:37,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-10-24 01:54:37,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:54:37,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-10-24 01:54:37,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=2536, Unknown=0, NotChecked=0, Total=2652 [2024-10-24 01:54:37,910 INFO L87 Difference]: Start difference. First operand 12889 states and 18935 transitions. Second operand has 52 states, 52 states have (on average 2.7115384615384617) internal successors, (141), 51 states have internal predecessors, (141), 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) [2024-10-24 01:54:56,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:54:56,597 INFO L93 Difference]: Finished difference Result 70488 states and 103728 transitions. [2024-10-24 01:54:56,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-10-24 01:54:56,597 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 2.7115384615384617) internal successors, (141), 51 states have internal predecessors, (141), 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 141 [2024-10-24 01:54:56,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:54:56,669 INFO L225 Difference]: With dead ends: 70488 [2024-10-24 01:54:56,669 INFO L226 Difference]: Without dead ends: 69186 [2024-10-24 01:54:56,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1259 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=1106, Invalid=8400, Unknown=0, NotChecked=0, Total=9506 [2024-10-24 01:54:56,692 INFO L432 NwaCegarLoop]: 1060 mSDtfsCounter, 3722 mSDsluCounter, 34498 mSDsCounter, 0 mSdLazyCounter, 22789 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3722 SdHoareTripleChecker+Valid, 35558 SdHoareTripleChecker+Invalid, 22790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2024-10-24 01:54:56,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3722 Valid, 35558 Invalid, 22790 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 22789 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2024-10-24 01:54:56,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69186 states. [2024-10-24 01:54:57,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69186 to 12899. [2024-10-24 01:54:57,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12899 states, 12898 states have (on average 1.469142502713599) internal successors, (18949), 12898 states have internal predecessors, (18949), 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) [2024-10-24 01:54:57,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12899 states to 12899 states and 18949 transitions. [2024-10-24 01:54:57,067 INFO L78 Accepts]: Start accepts. Automaton has 12899 states and 18949 transitions. Word has length 141 [2024-10-24 01:54:57,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:54:57,067 INFO L471 AbstractCegarLoop]: Abstraction has 12899 states and 18949 transitions. [2024-10-24 01:54:57,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 2.7115384615384617) internal successors, (141), 51 states have internal predecessors, (141), 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) [2024-10-24 01:54:57,068 INFO L276 IsEmpty]: Start isEmpty. Operand 12899 states and 18949 transitions. [2024-10-24 01:54:57,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 01:54:57,069 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:54:57,069 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] [2024-10-24 01:54:57,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-24 01:54:57,069 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:54:57,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:54:57,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1269164784, now seen corresponding path program 1 times [2024-10-24 01:54:57,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:54:57,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687272748] [2024-10-24 01:54:57,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:54:57,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:54:57,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:54:57,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:54:57,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:54:57,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687272748] [2024-10-24 01:54:57,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687272748] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:54:57,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:54:57,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 01:54:57,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947753147] [2024-10-24 01:54:57,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:54:57,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 01:54:57,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:54:57,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 01:54:57,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-24 01:54:57,488 INFO L87 Difference]: Start difference. First operand 12899 states and 18949 transitions. Second operand has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 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) [2024-10-24 01:54:57,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:54:57,953 INFO L93 Difference]: Finished difference Result 28075 states and 41360 transitions. [2024-10-24 01:54:57,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:54:57,954 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 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 141 [2024-10-24 01:54:57,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:54:57,980 INFO L225 Difference]: With dead ends: 28075 [2024-10-24 01:54:57,980 INFO L226 Difference]: Without dead ends: 25376 [2024-10-24 01:54:57,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-24 01:54:57,989 INFO L432 NwaCegarLoop]: 279 mSDtfsCounter, 1474 mSDsluCounter, 1657 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 1936 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:54:57,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1474 Valid, 1936 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:54:57,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25376 states. [2024-10-24 01:54:58,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25376 to 12845. [2024-10-24 01:54:58,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12845 states, 12844 states have (on average 1.469090625973217) internal successors, (18869), 12844 states have internal predecessors, (18869), 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) [2024-10-24 01:54:58,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12845 states to 12845 states and 18869 transitions. [2024-10-24 01:54:58,149 INFO L78 Accepts]: Start accepts. Automaton has 12845 states and 18869 transitions. Word has length 141 [2024-10-24 01:54:58,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:54:58,149 INFO L471 AbstractCegarLoop]: Abstraction has 12845 states and 18869 transitions. [2024-10-24 01:54:58,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 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) [2024-10-24 01:54:58,149 INFO L276 IsEmpty]: Start isEmpty. Operand 12845 states and 18869 transitions. [2024-10-24 01:54:58,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 01:54:58,150 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:54:58,150 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] [2024-10-24 01:54:58,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-24 01:54:58,150 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:54:58,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:54:58,151 INFO L85 PathProgramCache]: Analyzing trace with hash -377060850, now seen corresponding path program 1 times [2024-10-24 01:54:58,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:54:58,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077923332] [2024-10-24 01:54:58,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:54:58,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:54:58,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:54:58,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:54:58,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:54:58,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077923332] [2024-10-24 01:54:58,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077923332] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:54:58,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:54:58,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 01:54:58,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875237946] [2024-10-24 01:54:58,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:54:58,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 01:54:58,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:54:58,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 01:54:58,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-24 01:54:58,568 INFO L87 Difference]: Start difference. First operand 12845 states and 18869 transitions. Second operand has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 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) [2024-10-24 01:54:59,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:54:59,023 INFO L93 Difference]: Finished difference Result 28046 states and 41308 transitions. [2024-10-24 01:54:59,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:54:59,023 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 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 141 [2024-10-24 01:54:59,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:54:59,052 INFO L225 Difference]: With dead ends: 28046 [2024-10-24 01:54:59,052 INFO L226 Difference]: Without dead ends: 25326 [2024-10-24 01:54:59,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-24 01:54:59,063 INFO L432 NwaCegarLoop]: 396 mSDtfsCounter, 1248 mSDsluCounter, 2641 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 3037 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:54:59,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1248 Valid, 3037 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:54:59,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25326 states. [2024-10-24 01:54:59,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25326 to 12756. [2024-10-24 01:54:59,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12756 states, 12755 states have (on average 1.4701685613484907) internal successors, (18752), 12755 states have internal predecessors, (18752), 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) [2024-10-24 01:54:59,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12756 states to 12756 states and 18752 transitions. [2024-10-24 01:54:59,221 INFO L78 Accepts]: Start accepts. Automaton has 12756 states and 18752 transitions. Word has length 141 [2024-10-24 01:54:59,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:54:59,222 INFO L471 AbstractCegarLoop]: Abstraction has 12756 states and 18752 transitions. [2024-10-24 01:54:59,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 12 states have internal predecessors, (141), 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) [2024-10-24 01:54:59,222 INFO L276 IsEmpty]: Start isEmpty. Operand 12756 states and 18752 transitions. [2024-10-24 01:54:59,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 01:54:59,223 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:54:59,223 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] [2024-10-24 01:54:59,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-24 01:54:59,223 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:54:59,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:54:59,223 INFO L85 PathProgramCache]: Analyzing trace with hash -2064771440, now seen corresponding path program 1 times [2024-10-24 01:54:59,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:54:59,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484491864] [2024-10-24 01:54:59,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:54:59,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:54:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:54:59,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:54:59,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:54:59,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484491864] [2024-10-24 01:54:59,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484491864] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:54:59,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:54:59,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-24 01:54:59,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968310701] [2024-10-24 01:54:59,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:54:59,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 01:54:59,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:54:59,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 01:54:59,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-10-24 01:54:59,717 INFO L87 Difference]: Start difference. First operand 12756 states and 18752 transitions. Second operand has 14 states, 14 states have (on average 10.071428571428571) internal successors, (141), 13 states have internal predecessors, (141), 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) [2024-10-24 01:55:00,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:55:00,271 INFO L93 Difference]: Finished difference Result 40202 states and 59261 transitions. [2024-10-24 01:55:00,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 01:55:00,272 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.071428571428571) internal successors, (141), 13 states have internal predecessors, (141), 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 141 [2024-10-24 01:55:00,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:55:00,315 INFO L225 Difference]: With dead ends: 40202 [2024-10-24 01:55:00,315 INFO L226 Difference]: Without dead ends: 37472 [2024-10-24 01:55:00,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-10-24 01:55:00,330 INFO L432 NwaCegarLoop]: 538 mSDtfsCounter, 1350 mSDsluCounter, 3427 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1350 SdHoareTripleChecker+Valid, 3965 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:55:00,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1350 Valid, 3965 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:55:00,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37472 states. [2024-10-24 01:55:00,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37472 to 12632. [2024-10-24 01:55:00,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12632 states, 12631 states have (on average 1.4725674926767476) internal successors, (18600), 12631 states have internal predecessors, (18600), 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) [2024-10-24 01:55:00,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12632 states to 12632 states and 18600 transitions. [2024-10-24 01:55:00,555 INFO L78 Accepts]: Start accepts. Automaton has 12632 states and 18600 transitions. Word has length 141 [2024-10-24 01:55:00,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:55:00,555 INFO L471 AbstractCegarLoop]: Abstraction has 12632 states and 18600 transitions. [2024-10-24 01:55:00,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.071428571428571) internal successors, (141), 13 states have internal predecessors, (141), 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) [2024-10-24 01:55:00,556 INFO L276 IsEmpty]: Start isEmpty. Operand 12632 states and 18600 transitions. [2024-10-24 01:55:00,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 01:55:00,556 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:55:00,556 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] [2024-10-24 01:55:00,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-24 01:55:00,557 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:55:00,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:55:00,557 INFO L85 PathProgramCache]: Analyzing trace with hash -617130991, now seen corresponding path program 1 times [2024-10-24 01:55:00,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:55:00,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895327671] [2024-10-24 01:55:00,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:55:00,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:55:00,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:55:01,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:55:01,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:55:01,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895327671] [2024-10-24 01:55:01,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895327671] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:55:01,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:55:01,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-24 01:55:01,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761403218] [2024-10-24 01:55:01,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:55:01,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-24 01:55:01,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:55:01,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-24 01:55:01,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:55:01,341 INFO L87 Difference]: Start difference. First operand 12632 states and 18600 transitions. Second operand has 17 states, 17 states have (on average 8.294117647058824) internal successors, (141), 16 states have internal predecessors, (141), 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) [2024-10-24 01:55:02,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:55:02,184 INFO L93 Difference]: Finished difference Result 27625 states and 40708 transitions. [2024-10-24 01:55:02,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 01:55:02,184 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 8.294117647058824) internal successors, (141), 16 states have internal predecessors, (141), 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 141 [2024-10-24 01:55:02,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:55:02,213 INFO L225 Difference]: With dead ends: 27625 [2024-10-24 01:55:02,213 INFO L226 Difference]: Without dead ends: 24990 [2024-10-24 01:55:02,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=231, Invalid=699, Unknown=0, NotChecked=0, Total=930 [2024-10-24 01:55:02,223 INFO L432 NwaCegarLoop]: 464 mSDtfsCounter, 1508 mSDsluCounter, 3874 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 4338 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:55:02,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 4338 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 802 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 01:55:02,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24990 states. [2024-10-24 01:55:02,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24990 to 12632. [2024-10-24 01:55:02,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12632 states, 12631 states have (on average 1.4724883223814424) internal successors, (18599), 12631 states have internal predecessors, (18599), 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) [2024-10-24 01:55:02,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12632 states to 12632 states and 18599 transitions. [2024-10-24 01:55:02,384 INFO L78 Accepts]: Start accepts. Automaton has 12632 states and 18599 transitions. Word has length 141 [2024-10-24 01:55:02,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:55:02,384 INFO L471 AbstractCegarLoop]: Abstraction has 12632 states and 18599 transitions. [2024-10-24 01:55:02,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 8.294117647058824) internal successors, (141), 16 states have internal predecessors, (141), 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) [2024-10-24 01:55:02,384 INFO L276 IsEmpty]: Start isEmpty. Operand 12632 states and 18599 transitions. [2024-10-24 01:55:02,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 01:55:02,385 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:55:02,385 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] [2024-10-24 01:55:02,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-10-24 01:55:02,385 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:55:02,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:55:02,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1114271298, now seen corresponding path program 1 times [2024-10-24 01:55:02,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:55:02,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493340656] [2024-10-24 01:55:02,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:55:02,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:55:02,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:55:02,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:55:02,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:55:02,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493340656] [2024-10-24 01:55:02,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493340656] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:55:02,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:55:02,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 01:55:02,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378943104] [2024-10-24 01:55:02,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:55:02,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 01:55:02,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:55:02,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 01:55:02,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-24 01:55:02,861 INFO L87 Difference]: Start difference. First operand 12632 states and 18599 transitions. Second operand has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 12 states have internal predecessors, (142), 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) [2024-10-24 01:55:03,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:55:03,391 INFO L93 Difference]: Finished difference Result 27620 states and 40791 transitions. [2024-10-24 01:55:03,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:55:03,391 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 12 states have internal predecessors, (142), 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 142 [2024-10-24 01:55:03,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:55:03,416 INFO L225 Difference]: With dead ends: 27620 [2024-10-24 01:55:03,416 INFO L226 Difference]: Without dead ends: 25018 [2024-10-24 01:55:03,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-24 01:55:03,426 INFO L432 NwaCegarLoop]: 371 mSDtfsCounter, 1009 mSDsluCounter, 2609 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 2980 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:55:03,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1009 Valid, 2980 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:55:03,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25018 states. [2024-10-24 01:55:03,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25018 to 12642. [2024-10-24 01:55:03,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12642 states, 12641 states have (on average 1.4725891938928881) internal successors, (18615), 12641 states have internal predecessors, (18615), 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) [2024-10-24 01:55:03,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12642 states to 12642 states and 18615 transitions. [2024-10-24 01:55:03,630 INFO L78 Accepts]: Start accepts. Automaton has 12642 states and 18615 transitions. Word has length 142 [2024-10-24 01:55:03,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:55:03,631 INFO L471 AbstractCegarLoop]: Abstraction has 12642 states and 18615 transitions. [2024-10-24 01:55:03,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 12 states have internal predecessors, (142), 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) [2024-10-24 01:55:03,631 INFO L276 IsEmpty]: Start isEmpty. Operand 12642 states and 18615 transitions. [2024-10-24 01:55:03,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 01:55:03,631 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:55:03,632 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] [2024-10-24 01:55:03,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-10-24 01:55:03,632 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:55:03,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:55:03,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1223398740, now seen corresponding path program 1 times [2024-10-24 01:55:03,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:55:03,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583429004] [2024-10-24 01:55:03,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:55:03,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:55:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:55:03,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:55:03,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:55:03,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583429004] [2024-10-24 01:55:03,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583429004] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:55:03,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:55:03,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:55:03,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157338762] [2024-10-24 01:55:03,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:55:03,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:55:03,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:55:03,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:55:03,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:55:03,753 INFO L87 Difference]: Start difference. First operand 12642 states and 18615 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 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) [2024-10-24 01:55:03,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:55:03,824 INFO L93 Difference]: Finished difference Result 30720 states and 45395 transitions. [2024-10-24 01:55:03,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:55:03,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 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 142 [2024-10-24 01:55:03,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:55:03,842 INFO L225 Difference]: With dead ends: 30720 [2024-10-24 01:55:03,842 INFO L226 Difference]: Without dead ends: 18370 [2024-10-24 01:55:03,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:55:03,854 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 135 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:55:03,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 679 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:55:03,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18370 states. [2024-10-24 01:55:03,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18370 to 18296. [2024-10-24 01:55:03,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18296 states, 18295 states have (on average 1.4681060399016124) internal successors, (26859), 18295 states have internal predecessors, (26859), 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) [2024-10-24 01:55:04,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18296 states to 18296 states and 26859 transitions. [2024-10-24 01:55:04,016 INFO L78 Accepts]: Start accepts. Automaton has 18296 states and 26859 transitions. Word has length 142 [2024-10-24 01:55:04,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:55:04,016 INFO L471 AbstractCegarLoop]: Abstraction has 18296 states and 26859 transitions. [2024-10-24 01:55:04,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 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) [2024-10-24 01:55:04,016 INFO L276 IsEmpty]: Start isEmpty. Operand 18296 states and 26859 transitions. [2024-10-24 01:55:04,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 01:55:04,017 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:55:04,017 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] [2024-10-24 01:55:04,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-10-24 01:55:04,017 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:55:04,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:55:04,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1217228190, now seen corresponding path program 1 times [2024-10-24 01:55:04,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:55:04,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163798244] [2024-10-24 01:55:04,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:55:04,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:55:04,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:55:04,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:55:04,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:55:04,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163798244] [2024-10-24 01:55:04,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163798244] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:55:04,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:55:04,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-24 01:55:04,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936665803] [2024-10-24 01:55:04,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:55:04,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 01:55:04,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:55:04,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 01:55:04,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-10-24 01:55:04,525 INFO L87 Difference]: Start difference. First operand 18296 states and 26859 transitions. Second operand has 14 states, 14 states have (on average 10.142857142857142) internal successors, (142), 13 states have internal predecessors, (142), 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) [2024-10-24 01:55:05,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:55:05,356 INFO L93 Difference]: Finished difference Result 76255 states and 112233 transitions. [2024-10-24 01:55:05,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 01:55:05,356 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.142857142857142) internal successors, (142), 13 states have internal predecessors, (142), 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 142 [2024-10-24 01:55:05,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:55:05,434 INFO L225 Difference]: With dead ends: 76255 [2024-10-24 01:55:05,434 INFO L226 Difference]: Without dead ends: 72374 [2024-10-24 01:55:05,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-10-24 01:55:05,460 INFO L432 NwaCegarLoop]: 637 mSDtfsCounter, 1424 mSDsluCounter, 4898 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1424 SdHoareTripleChecker+Valid, 5535 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:55:05,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1424 Valid, 5535 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:55:05,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72374 states. [2024-10-24 01:55:05,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72374 to 18252. [2024-10-24 01:55:05,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18252 states, 18251 states have (on average 1.468522272752178) internal successors, (26802), 18251 states have internal predecessors, (26802), 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) [2024-10-24 01:55:05,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18252 states to 18252 states and 26802 transitions. [2024-10-24 01:55:05,939 INFO L78 Accepts]: Start accepts. Automaton has 18252 states and 26802 transitions. Word has length 142 [2024-10-24 01:55:05,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:55:05,939 INFO L471 AbstractCegarLoop]: Abstraction has 18252 states and 26802 transitions. [2024-10-24 01:55:05,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.142857142857142) internal successors, (142), 13 states have internal predecessors, (142), 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) [2024-10-24 01:55:05,939 INFO L276 IsEmpty]: Start isEmpty. Operand 18252 states and 26802 transitions. [2024-10-24 01:55:05,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-24 01:55:05,940 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:55:05,940 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] [2024-10-24 01:55:05,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-10-24 01:55:05,940 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:55:05,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:55:05,941 INFO L85 PathProgramCache]: Analyzing trace with hash 975845237, now seen corresponding path program 1 times [2024-10-24 01:55:05,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:55:05,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742609810] [2024-10-24 01:55:05,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:55:05,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:55:05,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:55:06,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:55:06,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:55:06,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742609810] [2024-10-24 01:55:06,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742609810] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:55:06,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:55:06,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-24 01:55:06,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382808759] [2024-10-24 01:55:06,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:55:06,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-24 01:55:06,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:55:06,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-24 01:55:06,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:55:06,828 INFO L87 Difference]: Start difference. First operand 18252 states and 26802 transitions. Second operand has 17 states, 17 states have (on average 8.411764705882353) internal successors, (143), 16 states have internal predecessors, (143), 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)