./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d64_e0.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d64_e0.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 52d00aef82b5670816043b415928b1f8da06c4353549da1577e95fceca21a64d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 03:56:09,625 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 03:56:09,693 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-24 03:56:09,699 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 03:56:09,702 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 03:56:09,722 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 03:56:09,723 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 03:56:09,723 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 03:56:09,724 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 03:56:09,724 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 03:56:09,724 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 03:56:09,725 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 03:56:09,725 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 03:56:09,726 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 03:56:09,726 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 03:56:09,726 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 03:56:09,727 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 03:56:09,727 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 03:56:09,728 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 03:56:09,728 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 03:56:09,728 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 03:56:09,732 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 03:56:09,732 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 03:56:09,732 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 03:56:09,733 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 03:56:09,733 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 03:56:09,733 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 03:56:09,734 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 03:56:09,734 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 03:56:09,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 03:56:09,734 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 03:56:09,734 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 03:56:09,735 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 03:56:09,735 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 03:56:09,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 03:56:09,739 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 03:56:09,739 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 03:56:09,739 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 03:56:09,739 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 03:56:09,740 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52d00aef82b5670816043b415928b1f8da06c4353549da1577e95fceca21a64d [2024-10-24 03:56:09,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 03:56:10,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 03:56:10,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 03:56:10,017 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 03:56:10,017 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 03:56:10,019 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d64_e0.c [2024-10-24 03:56:11,488 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 03:56:11,845 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 03:56:11,846 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d64_e0.c [2024-10-24 03:56:11,871 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64ad32219/2040cd003ad041f59e43aaf13b36dc53/FLAGda29807d4 [2024-10-24 03:56:12,054 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64ad32219/2040cd003ad041f59e43aaf13b36dc53 [2024-10-24 03:56:12,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 03:56:12,058 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 03:56:12,059 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 03:56:12,060 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 03:56:12,065 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 03:56:12,066 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:56:12" (1/1) ... [2024-10-24 03:56:12,067 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d11f363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:56:12, skipping insertion in model container [2024-10-24 03:56:12,067 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:56:12" (1/1) ... [2024-10-24 03:56:12,142 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 03:56:12,391 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/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d64_e0.c[1280,1293] [2024-10-24 03:56:12,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 03:56:12,801 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 03:56:12,810 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/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d64_e0.c[1280,1293] [2024-10-24 03:56:12,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 03:56:12,987 INFO L204 MainTranslator]: Completed translation [2024-10-24 03:56:12,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:56:12 WrapperNode [2024-10-24 03:56:12,988 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 03:56:12,989 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 03:56:12,989 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 03:56:12,989 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 03:56:12,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:56:12" (1/1) ... [2024-10-24 03:56:13,065 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:56:12" (1/1) ... [2024-10-24 03:56:13,629 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5533 [2024-10-24 03:56:13,629 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 03:56:13,630 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 03:56:13,630 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 03:56:13,630 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 03:56:13,641 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:56:12" (1/1) ... [2024-10-24 03:56:13,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:56:12" (1/1) ... [2024-10-24 03:56:13,721 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:56:12" (1/1) ... [2024-10-24 03:56:13,894 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 03:56:13,895 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:56:12" (1/1) ... [2024-10-24 03:56:13,895 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:56:12" (1/1) ... [2024-10-24 03:56:14,039 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:56:12" (1/1) ... [2024-10-24 03:56:14,066 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:56:12" (1/1) ... [2024-10-24 03:56:14,092 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:56:12" (1/1) ... [2024-10-24 03:56:14,154 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:56:12" (1/1) ... [2024-10-24 03:56:14,222 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 03:56:14,223 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 03:56:14,223 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 03:56:14,223 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 03:56:14,224 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:56:12" (1/1) ... [2024-10-24 03:56:14,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 03:56:14,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:56:14,256 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 03:56:14,260 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 03:56:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 03:56:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 03:56:14,301 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 03:56:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 03:56:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 03:56:14,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 03:56:14,720 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 03:56:14,721 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 03:56:20,711 INFO L? ?]: Removed 3109 outVars from TransFormulas that were not future-live. [2024-10-24 03:56:20,711 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 03:56:20,833 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 03:56:20,834 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 03:56:20,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:56:20 BoogieIcfgContainer [2024-10-24 03:56:20,834 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 03:56:20,838 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 03:56:20,839 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 03:56:20,842 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 03:56:20,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:56:12" (1/3) ... [2024-10-24 03:56:20,843 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f1d16a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:56:20, skipping insertion in model container [2024-10-24 03:56:20,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:56:12" (2/3) ... [2024-10-24 03:56:20,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f1d16a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:56:20, skipping insertion in model container [2024-10-24 03:56:20,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:56:20" (3/3) ... [2024-10-24 03:56:20,847 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w64_d64_e0.c [2024-10-24 03:56:20,866 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 03:56:20,867 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 03:56:20,967 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 03:56:20,975 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;@68a08d26, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 03:56:20,976 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 03:56:20,988 INFO L276 IsEmpty]: Start isEmpty. Operand has 1509 states, 1503 states have (on average 1.4990019960079841) internal successors, (2253), 1504 states have internal predecessors, (2253), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:21,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2024-10-24 03:56:21,011 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:21,012 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:21,013 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:21,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:21,018 INFO L85 PathProgramCache]: Analyzing trace with hash 189766823, now seen corresponding path program 1 times [2024-10-24 03:56:21,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:21,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427713558] [2024-10-24 03:56:21,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:21,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:21,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:21,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:21,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:21,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:21,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:21,846 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:21,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:21,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427713558] [2024-10-24 03:56:21,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427713558] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:21,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:21,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 03:56:21,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650163194] [2024-10-24 03:56:21,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:21,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 03:56:21,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:21,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 03:56:21,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 03:56:21,889 INFO L87 Difference]: Start difference. First operand has 1509 states, 1503 states have (on average 1.4990019960079841) internal successors, (2253), 1504 states have internal predecessors, (2253), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 164.0) internal successors, (328), 2 states have internal predecessors, (328), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 03:56:22,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:22,010 INFO L93 Difference]: Finished difference Result 2724 states and 4082 transitions. [2024-10-24 03:56:22,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 03:56:22,014 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 164.0) internal successors, (328), 2 states have internal predecessors, (328), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 340 [2024-10-24 03:56:22,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:22,039 INFO L225 Difference]: With dead ends: 2724 [2024-10-24 03:56:22,039 INFO L226 Difference]: Without dead ends: 1508 [2024-10-24 03:56:22,049 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 03:56:22,052 INFO L432 NwaCegarLoop]: 2255 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2255 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:22,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2255 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:56:22,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2024-10-24 03:56:22,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1508. [2024-10-24 03:56:22,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1508 states, 1503 states have (on average 1.4970059880239521) internal successors, (2250), 1503 states have internal predecessors, (2250), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:22,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1508 states to 1508 states and 2256 transitions. [2024-10-24 03:56:22,169 INFO L78 Accepts]: Start accepts. Automaton has 1508 states and 2256 transitions. Word has length 340 [2024-10-24 03:56:22,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:22,170 INFO L471 AbstractCegarLoop]: Abstraction has 1508 states and 2256 transitions. [2024-10-24 03:56:22,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 164.0) internal successors, (328), 2 states have internal predecessors, (328), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 03:56:22,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1508 states and 2256 transitions. [2024-10-24 03:56:22,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2024-10-24 03:56:22,178 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:22,178 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:22,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 03:56:22,179 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:22,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:22,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1984797727, now seen corresponding path program 1 times [2024-10-24 03:56:22,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:22,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455100576] [2024-10-24 03:56:22,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:22,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:22,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:24,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:24,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:24,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:24,298 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:24,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:24,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455100576] [2024-10-24 03:56:24,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455100576] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:24,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:24,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:56:24,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403704916] [2024-10-24 03:56:24,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:24,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:56:24,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:24,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:56:24,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:56:24,309 INFO L87 Difference]: Start difference. First operand 1508 states and 2256 transitions. Second operand has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:24,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:24,378 INFO L93 Difference]: Finished difference Result 1512 states and 2260 transitions. [2024-10-24 03:56:24,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:24,379 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 340 [2024-10-24 03:56:24,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:24,390 INFO L225 Difference]: With dead ends: 1512 [2024-10-24 03:56:24,390 INFO L226 Difference]: Without dead ends: 1510 [2024-10-24 03:56:24,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 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 03:56:24,395 INFO L432 NwaCegarLoop]: 2253 mSDtfsCounter, 0 mSDsluCounter, 4501 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6754 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:24,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6754 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:56:24,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2024-10-24 03:56:24,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 1510. [2024-10-24 03:56:24,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1510 states, 1505 states have (on average 1.496345514950166) internal successors, (2252), 1505 states have internal predecessors, (2252), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:24,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 2258 transitions. [2024-10-24 03:56:24,424 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 2258 transitions. Word has length 340 [2024-10-24 03:56:24,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:24,427 INFO L471 AbstractCegarLoop]: Abstraction has 1510 states and 2258 transitions. [2024-10-24 03:56:24,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:24,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 2258 transitions. [2024-10-24 03:56:24,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-10-24 03:56:24,431 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:24,432 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:24,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 03:56:24,432 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:24,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:24,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1397490167, now seen corresponding path program 1 times [2024-10-24 03:56:24,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:24,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671187915] [2024-10-24 03:56:24,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:24,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:24,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:25,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:25,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:25,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:25,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:25,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:25,599 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:25,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:25,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671187915] [2024-10-24 03:56:25,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671187915] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:25,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:25,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:25,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766393520] [2024-10-24 03:56:25,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:25,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:25,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:25,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:25,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:25,609 INFO L87 Difference]: Start difference. First operand 1510 states and 2258 transitions. Second operand has 5 states, 5 states have (on average 65.8) internal successors, (329), 5 states have internal predecessors, (329), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:26,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:26,553 INFO L93 Difference]: Finished difference Result 3770 states and 5640 transitions. [2024-10-24 03:56:26,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 03:56:26,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 65.8) internal successors, (329), 5 states have internal predecessors, (329), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 341 [2024-10-24 03:56:26,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:26,562 INFO L225 Difference]: With dead ends: 3770 [2024-10-24 03:56:26,562 INFO L226 Difference]: Without dead ends: 1510 [2024-10-24 03:56:26,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 03:56:26,566 INFO L432 NwaCegarLoop]: 2251 mSDtfsCounter, 4786 mSDsluCounter, 4079 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4786 SdHoareTripleChecker+Valid, 6330 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:26,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4786 Valid, 6330 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 03:56:26,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2024-10-24 03:56:26,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 1510. [2024-10-24 03:56:26,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1510 states, 1505 states have (on average 1.4956810631229236) internal successors, (2251), 1505 states have internal predecessors, (2251), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:26,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 2257 transitions. [2024-10-24 03:56:26,602 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 2257 transitions. Word has length 341 [2024-10-24 03:56:26,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:26,602 INFO L471 AbstractCegarLoop]: Abstraction has 1510 states and 2257 transitions. [2024-10-24 03:56:26,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.8) internal successors, (329), 5 states have internal predecessors, (329), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:26,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 2257 transitions. [2024-10-24 03:56:26,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2024-10-24 03:56:26,609 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:26,609 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:26,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 03:56:26,610 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:26,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:26,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1929197203, now seen corresponding path program 1 times [2024-10-24 03:56:26,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:26,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466559133] [2024-10-24 03:56:26,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:26,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:27,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:27,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:27,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:27,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:27,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:27,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:27,654 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:27,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:27,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466559133] [2024-10-24 03:56:27,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466559133] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:27,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:27,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:56:27,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671261711] [2024-10-24 03:56:27,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:27,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:56:27,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:27,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:56:27,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:56:27,664 INFO L87 Difference]: Start difference. First operand 1510 states and 2257 transitions. Second operand has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:27,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:27,732 INFO L93 Difference]: Finished difference Result 2729 states and 4078 transitions. [2024-10-24 03:56:27,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:27,733 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 342 [2024-10-24 03:56:27,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:27,739 INFO L225 Difference]: With dead ends: 2729 [2024-10-24 03:56:27,739 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:27,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 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 03:56:27,780 INFO L432 NwaCegarLoop]: 2252 mSDtfsCounter, 0 mSDsluCounter, 4496 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6748 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:27,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6748 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:56:27,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:27,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:27,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4950232249502322) internal successors, (2253), 1507 states have internal predecessors, (2253), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:27,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2259 transitions. [2024-10-24 03:56:27,806 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2259 transitions. Word has length 342 [2024-10-24 03:56:27,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:27,806 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2259 transitions. [2024-10-24 03:56:27,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:27,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2259 transitions. [2024-10-24 03:56:27,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-10-24 03:56:27,811 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:27,811 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:27,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 03:56:27,812 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:27,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:27,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1422392720, now seen corresponding path program 1 times [2024-10-24 03:56:27,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:27,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187906221] [2024-10-24 03:56:27,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:27,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:28,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:28,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:28,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:28,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:28,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:28,923 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:28,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:28,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187906221] [2024-10-24 03:56:28,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187906221] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:28,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:28,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:56:28,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774034563] [2024-10-24 03:56:28,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:28,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:56:28,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:28,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:56:28,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:56:28,928 INFO L87 Difference]: Start difference. First operand 1512 states and 2259 transitions. Second operand has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:29,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:29,079 INFO L93 Difference]: Finished difference Result 2731 states and 4079 transitions. [2024-10-24 03:56:29,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:29,080 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 343 [2024-10-24 03:56:29,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:29,085 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:29,086 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:29,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:29,088 INFO L432 NwaCegarLoop]: 2212 mSDtfsCounter, 2052 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2052 SdHoareTripleChecker+Valid, 4426 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:29,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2052 Valid, 4426 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:56:29,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:29,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:29,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4943596549435965) internal successors, (2252), 1507 states have internal predecessors, (2252), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:29,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2258 transitions. [2024-10-24 03:56:29,114 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2258 transitions. Word has length 343 [2024-10-24 03:56:29,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:29,115 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2258 transitions. [2024-10-24 03:56:29,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:29,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2258 transitions. [2024-10-24 03:56:29,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2024-10-24 03:56:29,120 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:29,120 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:29,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 03:56:29,120 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:29,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:29,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1352511067, now seen corresponding path program 1 times [2024-10-24 03:56:29,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:29,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369599514] [2024-10-24 03:56:29,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:29,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:29,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:29,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:29,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:29,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:29,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:29,882 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:29,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:29,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369599514] [2024-10-24 03:56:29,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369599514] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:29,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:29,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:29,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918270941] [2024-10-24 03:56:29,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:29,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:29,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:29,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:29,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:29,885 INFO L87 Difference]: Start difference. First operand 1512 states and 2258 transitions. Second operand has 5 states, 5 states have (on average 66.4) internal successors, (332), 5 states have internal predecessors, (332), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:30,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:30,028 INFO L93 Difference]: Finished difference Result 2731 states and 4077 transitions. [2024-10-24 03:56:30,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:30,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 66.4) internal successors, (332), 5 states have internal predecessors, (332), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 344 [2024-10-24 03:56:30,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:30,034 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:30,034 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:30,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:30,037 INFO L432 NwaCegarLoop]: 2212 mSDtfsCounter, 4289 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4292 SdHoareTripleChecker+Valid, 4426 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:30,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4292 Valid, 4426 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:56:30,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:30,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:30,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.493696084936961) internal successors, (2251), 1507 states have internal predecessors, (2251), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:30,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2257 transitions. [2024-10-24 03:56:30,067 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2257 transitions. Word has length 344 [2024-10-24 03:56:30,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:30,068 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2257 transitions. [2024-10-24 03:56:30,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 66.4) internal successors, (332), 5 states have internal predecessors, (332), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:30,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2257 transitions. [2024-10-24 03:56:30,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2024-10-24 03:56:30,072 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:30,073 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:30,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 03:56:30,073 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:30,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:30,074 INFO L85 PathProgramCache]: Analyzing trace with hash -649362615, now seen corresponding path program 1 times [2024-10-24 03:56:30,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:30,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267329141] [2024-10-24 03:56:30,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:30,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:30,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:30,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:30,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:30,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:30,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:30,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:30,844 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:30,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:30,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267329141] [2024-10-24 03:56:30,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267329141] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:30,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:30,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:30,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095226185] [2024-10-24 03:56:30,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:30,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:30,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:30,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:30,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:30,847 INFO L87 Difference]: Start difference. First operand 1512 states and 2257 transitions. Second operand has 5 states, 5 states have (on average 66.6) internal successors, (333), 5 states have internal predecessors, (333), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:30,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:30,989 INFO L93 Difference]: Finished difference Result 2731 states and 4075 transitions. [2024-10-24 03:56:30,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:30,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 66.6) internal successors, (333), 5 states have internal predecessors, (333), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 345 [2024-10-24 03:56:30,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:30,995 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:30,995 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:30,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:31,001 INFO L432 NwaCegarLoop]: 2212 mSDtfsCounter, 2239 mSDsluCounter, 2220 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2242 SdHoareTripleChecker+Valid, 4432 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:31,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2242 Valid, 4432 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:56:31,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:31,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:31,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4930325149303252) internal successors, (2250), 1507 states have internal predecessors, (2250), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:31,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2256 transitions. [2024-10-24 03:56:31,030 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2256 transitions. Word has length 345 [2024-10-24 03:56:31,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:31,030 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2256 transitions. [2024-10-24 03:56:31,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 66.6) internal successors, (333), 5 states have internal predecessors, (333), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:31,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2256 transitions. [2024-10-24 03:56:31,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2024-10-24 03:56:31,035 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:31,035 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:31,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 03:56:31,036 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:31,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:31,036 INFO L85 PathProgramCache]: Analyzing trace with hash 221600414, now seen corresponding path program 1 times [2024-10-24 03:56:31,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:31,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196329704] [2024-10-24 03:56:31,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:31,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:31,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:31,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:31,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:31,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:31,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:31,763 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:31,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:31,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196329704] [2024-10-24 03:56:31,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196329704] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:31,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:31,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:31,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132585085] [2024-10-24 03:56:31,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:31,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:31,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:31,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:31,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:31,767 INFO L87 Difference]: Start difference. First operand 1512 states and 2256 transitions. Second operand has 5 states, 5 states have (on average 66.8) internal successors, (334), 5 states have internal predecessors, (334), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:31,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:31,921 INFO L93 Difference]: Finished difference Result 2731 states and 4073 transitions. [2024-10-24 03:56:31,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:31,922 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 66.8) internal successors, (334), 5 states have internal predecessors, (334), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 346 [2024-10-24 03:56:31,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:31,928 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:31,928 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:31,930 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:31,931 INFO L432 NwaCegarLoop]: 2212 mSDtfsCounter, 4273 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4276 SdHoareTripleChecker+Valid, 4426 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:31,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4276 Valid, 4426 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 03:56:31,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:31,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:31,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4923689449236894) internal successors, (2249), 1507 states have internal predecessors, (2249), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:31,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2255 transitions. [2024-10-24 03:56:31,960 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2255 transitions. Word has length 346 [2024-10-24 03:56:31,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:31,961 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2255 transitions. [2024-10-24 03:56:31,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 66.8) internal successors, (334), 5 states have internal predecessors, (334), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:31,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2255 transitions. [2024-10-24 03:56:31,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-10-24 03:56:31,965 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:31,965 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:31,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 03:56:31,966 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:31,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:31,966 INFO L85 PathProgramCache]: Analyzing trace with hash 924847266, now seen corresponding path program 1 times [2024-10-24 03:56:31,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:31,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623816849] [2024-10-24 03:56:31,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:31,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:32,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:33,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:33,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:33,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:33,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:33,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:33,138 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:33,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:33,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623816849] [2024-10-24 03:56:33,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623816849] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:33,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:33,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:56:33,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386627727] [2024-10-24 03:56:33,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:33,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:56:33,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:33,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:56:33,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:56:33,142 INFO L87 Difference]: Start difference. First operand 1512 states and 2255 transitions. Second operand has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:33,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:33,782 INFO L93 Difference]: Finished difference Result 2731 states and 4071 transitions. [2024-10-24 03:56:33,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:33,783 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 347 [2024-10-24 03:56:33,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:33,789 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:33,790 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:33,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:33,792 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 1980 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1980 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:33,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1980 Valid, 3858 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 03:56:33,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:33,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:33,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4917053749170537) internal successors, (2248), 1507 states have internal predecessors, (2248), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:33,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2254 transitions. [2024-10-24 03:56:33,828 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2254 transitions. Word has length 347 [2024-10-24 03:56:33,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:33,828 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2254 transitions. [2024-10-24 03:56:33,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:33,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2254 transitions. [2024-10-24 03:56:33,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2024-10-24 03:56:33,834 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:33,835 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:33,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 03:56:33,835 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:33,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:33,836 INFO L85 PathProgramCache]: Analyzing trace with hash -199905069, now seen corresponding path program 1 times [2024-10-24 03:56:33,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:33,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720913509] [2024-10-24 03:56:33,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:33,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:34,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:34,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:34,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:34,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:34,552 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:34,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:34,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720913509] [2024-10-24 03:56:34,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720913509] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:34,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:34,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:34,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928493735] [2024-10-24 03:56:34,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:34,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:34,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:34,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:34,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:34,556 INFO L87 Difference]: Start difference. First operand 1512 states and 2254 transitions. Second operand has 5 states, 5 states have (on average 67.2) internal successors, (336), 5 states have internal predecessors, (336), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:35,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:35,010 INFO L93 Difference]: Finished difference Result 2739 states and 4080 transitions. [2024-10-24 03:56:35,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 03:56:35,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.2) internal successors, (336), 5 states have internal predecessors, (336), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 348 [2024-10-24 03:56:35,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:35,017 INFO L225 Difference]: With dead ends: 2739 [2024-10-24 03:56:35,018 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:35,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:56:35,021 INFO L432 NwaCegarLoop]: 2239 mSDtfsCounter, 1995 mSDsluCounter, 4172 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1995 SdHoareTripleChecker+Valid, 6411 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:35,022 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1995 Valid, 6411 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:56:35,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:35,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:35,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4910418049104182) internal successors, (2247), 1507 states have internal predecessors, (2247), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:35,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2253 transitions. [2024-10-24 03:56:35,055 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2253 transitions. Word has length 348 [2024-10-24 03:56:35,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:35,056 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2253 transitions. [2024-10-24 03:56:35,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.2) internal successors, (336), 5 states have internal predecessors, (336), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:35,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2253 transitions. [2024-10-24 03:56:35,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-10-24 03:56:35,059 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:35,059 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:35,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 03:56:35,059 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:35,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:35,060 INFO L85 PathProgramCache]: Analyzing trace with hash -379402074, now seen corresponding path program 1 times [2024-10-24 03:56:35,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:35,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111601712] [2024-10-24 03:56:35,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:35,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:35,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:35,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:35,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:35,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:35,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:35,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:35,825 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:35,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:35,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111601712] [2024-10-24 03:56:35,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111601712] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:35,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:35,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:35,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921752548] [2024-10-24 03:56:35,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:35,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:35,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:35,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:35,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:35,828 INFO L87 Difference]: Start difference. First operand 1512 states and 2253 transitions. Second operand has 5 states, 5 states have (on average 67.4) internal successors, (337), 5 states have internal predecessors, (337), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:36,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:36,411 INFO L93 Difference]: Finished difference Result 2731 states and 4067 transitions. [2024-10-24 03:56:36,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:36,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.4) internal successors, (337), 5 states have internal predecessors, (337), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 349 [2024-10-24 03:56:36,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:36,417 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:36,418 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:36,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:36,420 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4219 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4222 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:36,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4222 Valid, 3858 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 03:56:36,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:36,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:36,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4903782349037824) internal successors, (2246), 1507 states have internal predecessors, (2246), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:36,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2252 transitions. [2024-10-24 03:56:36,462 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2252 transitions. Word has length 349 [2024-10-24 03:56:36,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:36,463 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2252 transitions. [2024-10-24 03:56:36,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.4) internal successors, (337), 5 states have internal predecessors, (337), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:36,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2252 transitions. [2024-10-24 03:56:36,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-10-24 03:56:36,466 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:36,466 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:36,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 03:56:36,466 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:36,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:36,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1130809062, now seen corresponding path program 1 times [2024-10-24 03:56:36,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:36,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103108209] [2024-10-24 03:56:36,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:36,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:36,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:37,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:37,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:37,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:37,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:37,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:37,142 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:37,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:37,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103108209] [2024-10-24 03:56:37,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103108209] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:37,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:37,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:37,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606736045] [2024-10-24 03:56:37,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:37,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:37,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:37,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:37,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:37,145 INFO L87 Difference]: Start difference. First operand 1512 states and 2252 transitions. Second operand has 5 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:37,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:37,768 INFO L93 Difference]: Finished difference Result 2731 states and 4065 transitions. [2024-10-24 03:56:37,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:37,770 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 350 [2024-10-24 03:56:37,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:37,780 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:37,783 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:37,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:37,785 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 2234 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2237 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:37,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2237 Valid, 3864 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 03:56:37,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:37,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:37,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4897146648971467) internal successors, (2245), 1507 states have internal predecessors, (2245), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:37,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2251 transitions. [2024-10-24 03:56:37,814 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2251 transitions. Word has length 350 [2024-10-24 03:56:37,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:37,815 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2251 transitions. [2024-10-24 03:56:37,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.6) internal successors, (338), 5 states have internal predecessors, (338), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:37,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2251 transitions. [2024-10-24 03:56:37,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-10-24 03:56:37,817 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:37,817 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:37,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 03:56:37,818 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:37,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:37,818 INFO L85 PathProgramCache]: Analyzing trace with hash 903459533, now seen corresponding path program 1 times [2024-10-24 03:56:37,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:37,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137221451] [2024-10-24 03:56:37,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:37,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:38,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:38,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:38,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:38,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:38,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:38,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:38,611 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:38,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:38,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137221451] [2024-10-24 03:56:38,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137221451] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:38,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:38,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:38,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615675383] [2024-10-24 03:56:38,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:38,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:38,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:38,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:38,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:38,615 INFO L87 Difference]: Start difference. First operand 1512 states and 2251 transitions. Second operand has 5 states, 5 states have (on average 67.8) internal successors, (339), 5 states have internal predecessors, (339), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:39,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:39,117 INFO L93 Difference]: Finished difference Result 2731 states and 4063 transitions. [2024-10-24 03:56:39,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:39,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.8) internal successors, (339), 5 states have internal predecessors, (339), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 351 [2024-10-24 03:56:39,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:39,127 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:39,129 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:39,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:39,132 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 2230 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2233 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:39,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2233 Valid, 3864 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:56:39,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:39,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:39,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.489051094890511) internal successors, (2244), 1507 states have internal predecessors, (2244), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:39,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2250 transitions. [2024-10-24 03:56:39,157 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2250 transitions. Word has length 351 [2024-10-24 03:56:39,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:39,157 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2250 transitions. [2024-10-24 03:56:39,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.8) internal successors, (339), 5 states have internal predecessors, (339), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:39,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2250 transitions. [2024-10-24 03:56:39,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2024-10-24 03:56:39,160 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:39,160 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:39,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 03:56:39,160 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:39,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:39,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1907226399, now seen corresponding path program 1 times [2024-10-24 03:56:39,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:39,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943701274] [2024-10-24 03:56:39,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:39,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:39,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:39,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:39,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:39,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:39,853 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:39,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:39,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943701274] [2024-10-24 03:56:39,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943701274] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:39,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:39,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:39,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700220973] [2024-10-24 03:56:39,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:39,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:39,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:39,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:39,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:39,855 INFO L87 Difference]: Start difference. First operand 1512 states and 2250 transitions. Second operand has 5 states, 5 states have (on average 68.0) internal successors, (340), 5 states have internal predecessors, (340), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:40,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:40,374 INFO L93 Difference]: Finished difference Result 2731 states and 4061 transitions. [2024-10-24 03:56:40,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:40,375 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 68.0) internal successors, (340), 5 states have internal predecessors, (340), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 352 [2024-10-24 03:56:40,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:40,381 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:40,381 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:40,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:40,383 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 2223 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2226 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:40,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2226 Valid, 3864 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 03:56:40,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:40,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:40,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4883875248838752) internal successors, (2243), 1507 states have internal predecessors, (2243), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:40,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2249 transitions. [2024-10-24 03:56:40,407 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2249 transitions. Word has length 352 [2024-10-24 03:56:40,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:40,407 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2249 transitions. [2024-10-24 03:56:40,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.0) internal successors, (340), 5 states have internal predecessors, (340), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:40,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2249 transitions. [2024-10-24 03:56:40,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-10-24 03:56:40,410 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:40,410 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:40,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 03:56:40,411 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:40,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:40,411 INFO L85 PathProgramCache]: Analyzing trace with hash 207298221, now seen corresponding path program 1 times [2024-10-24 03:56:40,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:40,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544831021] [2024-10-24 03:56:40,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:40,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:41,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:41,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:41,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:41,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:41,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:41,109 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:41,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:41,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544831021] [2024-10-24 03:56:41,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544831021] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:41,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:41,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:41,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492045189] [2024-10-24 03:56:41,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:41,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:41,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:41,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:41,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:41,112 INFO L87 Difference]: Start difference. First operand 1512 states and 2249 transitions. Second operand has 5 states, 5 states have (on average 68.2) internal successors, (341), 5 states have internal predecessors, (341), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:41,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:41,578 INFO L93 Difference]: Finished difference Result 2731 states and 4059 transitions. [2024-10-24 03:56:41,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:41,579 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 68.2) internal successors, (341), 5 states have internal predecessors, (341), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 353 [2024-10-24 03:56:41,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:41,584 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:41,584 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:41,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:41,587 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 2219 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2222 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:41,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2222 Valid, 3864 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:56:41,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:41,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:41,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4877239548772396) internal successors, (2242), 1507 states have internal predecessors, (2242), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:41,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2248 transitions. [2024-10-24 03:56:41,609 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2248 transitions. Word has length 353 [2024-10-24 03:56:41,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:41,610 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2248 transitions. [2024-10-24 03:56:41,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.2) internal successors, (341), 5 states have internal predecessors, (341), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:41,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2248 transitions. [2024-10-24 03:56:41,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2024-10-24 03:56:41,613 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:41,613 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:41,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 03:56:41,613 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:41,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:41,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1484661030, now seen corresponding path program 1 times [2024-10-24 03:56:41,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:41,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726179971] [2024-10-24 03:56:41,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:41,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:42,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:42,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:42,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:42,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:42,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:42,280 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:42,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:42,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726179971] [2024-10-24 03:56:42,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726179971] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:42,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:42,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:42,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714912105] [2024-10-24 03:56:42,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:42,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:42,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:42,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:42,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:42,284 INFO L87 Difference]: Start difference. First operand 1512 states and 2248 transitions. Second operand has 5 states, 5 states have (on average 68.4) internal successors, (342), 5 states have internal predecessors, (342), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:42,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:42,807 INFO L93 Difference]: Finished difference Result 2731 states and 4057 transitions. [2024-10-24 03:56:42,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:42,808 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 68.4) internal successors, (342), 5 states have internal predecessors, (342), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 354 [2024-10-24 03:56:42,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:42,813 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:42,813 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:42,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:42,816 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 2215 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2218 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:42,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2218 Valid, 3864 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 03:56:42,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:42,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:42,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4870603848706039) internal successors, (2241), 1507 states have internal predecessors, (2241), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:42,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2247 transitions. [2024-10-24 03:56:42,839 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2247 transitions. Word has length 354 [2024-10-24 03:56:42,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:42,840 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2247 transitions. [2024-10-24 03:56:42,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.4) internal successors, (342), 5 states have internal predecessors, (342), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:42,841 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2247 transitions. [2024-10-24 03:56:42,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2024-10-24 03:56:42,843 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:42,843 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:42,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 03:56:42,843 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:42,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:42,844 INFO L85 PathProgramCache]: Analyzing trace with hash -190903546, now seen corresponding path program 1 times [2024-10-24 03:56:42,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:42,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040251117] [2024-10-24 03:56:42,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:42,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:43,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:43,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:43,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:43,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:43,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:43,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:43,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:43,473 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:43,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:43,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040251117] [2024-10-24 03:56:43,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040251117] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:43,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:43,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:43,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592320688] [2024-10-24 03:56:43,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:43,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:43,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:43,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:43,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:43,477 INFO L87 Difference]: Start difference. First operand 1512 states and 2247 transitions. Second operand has 5 states, 5 states have (on average 68.6) internal successors, (343), 5 states have internal predecessors, (343), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:43,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:43,925 INFO L93 Difference]: Finished difference Result 2731 states and 4055 transitions. [2024-10-24 03:56:43,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:43,925 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 68.6) internal successors, (343), 5 states have internal predecessors, (343), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 355 [2024-10-24 03:56:43,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:43,930 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:43,931 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:43,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:43,933 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4165 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4168 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:43,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4168 Valid, 3858 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:56:43,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:43,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:43,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4863968148639681) internal successors, (2240), 1507 states have internal predecessors, (2240), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:43,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2246 transitions. [2024-10-24 03:56:43,957 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2246 transitions. Word has length 355 [2024-10-24 03:56:43,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:43,957 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2246 transitions. [2024-10-24 03:56:43,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.6) internal successors, (343), 5 states have internal predecessors, (343), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:43,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2246 transitions. [2024-10-24 03:56:43,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2024-10-24 03:56:43,960 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:43,960 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:43,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 03:56:43,961 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:43,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:43,961 INFO L85 PathProgramCache]: Analyzing trace with hash 195011923, now seen corresponding path program 1 times [2024-10-24 03:56:43,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:43,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785095347] [2024-10-24 03:56:43,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:43,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:44,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:44,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:44,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:44,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:44,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:44,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:44,622 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:44,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:44,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785095347] [2024-10-24 03:56:44,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785095347] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:44,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:44,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:44,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494657871] [2024-10-24 03:56:44,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:44,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:44,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:44,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:44,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:44,629 INFO L87 Difference]: Start difference. First operand 1512 states and 2246 transitions. Second operand has 5 states, 5 states have (on average 68.8) internal successors, (344), 5 states have internal predecessors, (344), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:45,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:45,109 INFO L93 Difference]: Finished difference Result 2731 states and 4053 transitions. [2024-10-24 03:56:45,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:45,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 68.8) internal successors, (344), 5 states have internal predecessors, (344), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 356 [2024-10-24 03:56:45,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:45,115 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:45,116 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:45,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:45,118 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 2207 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2210 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:45,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2210 Valid, 3864 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:56:45,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:45,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:45,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4857332448573324) internal successors, (2239), 1507 states have internal predecessors, (2239), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:45,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2245 transitions. [2024-10-24 03:56:45,148 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2245 transitions. Word has length 356 [2024-10-24 03:56:45,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:45,149 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2245 transitions. [2024-10-24 03:56:45,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.8) internal successors, (344), 5 states have internal predecessors, (344), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:45,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2245 transitions. [2024-10-24 03:56:45,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2024-10-24 03:56:45,152 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:45,153 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:45,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 03:56:45,153 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:45,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:45,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1844936737, now seen corresponding path program 1 times [2024-10-24 03:56:45,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:45,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987415105] [2024-10-24 03:56:45,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:45,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:45,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:45,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:45,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:45,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:45,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:45,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:45,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:45,869 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:45,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:45,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987415105] [2024-10-24 03:56:45,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987415105] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:45,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:45,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:45,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952522706] [2024-10-24 03:56:45,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:45,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:45,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:45,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:45,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:45,871 INFO L87 Difference]: Start difference. First operand 1512 states and 2245 transitions. Second operand has 5 states, 5 states have (on average 69.0) internal successors, (345), 5 states have internal predecessors, (345), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:46,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:46,266 INFO L93 Difference]: Finished difference Result 2731 states and 4051 transitions. [2024-10-24 03:56:46,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:46,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.0) internal successors, (345), 5 states have internal predecessors, (345), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 357 [2024-10-24 03:56:46,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:46,270 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:46,271 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:46,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:46,273 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 2203 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2206 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:46,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2206 Valid, 3864 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:56:46,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:46,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:46,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4850696748506969) internal successors, (2238), 1507 states have internal predecessors, (2238), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:46,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2244 transitions. [2024-10-24 03:56:46,295 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2244 transitions. Word has length 357 [2024-10-24 03:56:46,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:46,295 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2244 transitions. [2024-10-24 03:56:46,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.0) internal successors, (345), 5 states have internal predecessors, (345), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:46,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2244 transitions. [2024-10-24 03:56:46,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2024-10-24 03:56:46,298 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:46,298 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:46,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 03:56:46,299 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:46,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:46,299 INFO L85 PathProgramCache]: Analyzing trace with hash 971283532, now seen corresponding path program 1 times [2024-10-24 03:56:46,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:46,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156397142] [2024-10-24 03:56:46,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:46,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:46,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:46,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:46,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:46,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:46,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:46,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:46,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:46,834 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:46,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:46,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156397142] [2024-10-24 03:56:46,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156397142] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:46,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:46,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:46,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294129972] [2024-10-24 03:56:46,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:46,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:46,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:46,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:46,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:46,836 INFO L87 Difference]: Start difference. First operand 1512 states and 2244 transitions. Second operand has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:47,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:47,282 INFO L93 Difference]: Finished difference Result 2731 states and 4049 transitions. [2024-10-24 03:56:47,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:47,283 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 358 [2024-10-24 03:56:47,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:47,286 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:47,286 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:47,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:47,288 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4141 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4144 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:47,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4144 Valid, 3858 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:56:47,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:47,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:47,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.484406104844061) internal successors, (2237), 1507 states have internal predecessors, (2237), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:47,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2243 transitions. [2024-10-24 03:56:47,313 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2243 transitions. Word has length 358 [2024-10-24 03:56:47,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:47,314 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2243 transitions. [2024-10-24 03:56:47,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:47,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2243 transitions. [2024-10-24 03:56:47,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2024-10-24 03:56:47,317 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:47,317 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:47,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 03:56:47,318 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:47,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:47,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1717387976, now seen corresponding path program 1 times [2024-10-24 03:56:47,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:47,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944354217] [2024-10-24 03:56:47,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:47,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:47,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:47,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:47,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:47,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:47,944 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:47,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:47,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944354217] [2024-10-24 03:56:47,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944354217] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:47,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:47,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:47,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100375746] [2024-10-24 03:56:47,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:47,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:47,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:47,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:47,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:47,949 INFO L87 Difference]: Start difference. First operand 1512 states and 2243 transitions. Second operand has 5 states, 5 states have (on average 69.4) internal successors, (347), 5 states have internal predecessors, (347), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:48,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:48,448 INFO L93 Difference]: Finished difference Result 2731 states and 4047 transitions. [2024-10-24 03:56:48,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:48,449 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.4) internal successors, (347), 5 states have internal predecessors, (347), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 359 [2024-10-24 03:56:48,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:48,452 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:48,453 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:48,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:48,455 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4133 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4136 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:48,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4136 Valid, 3858 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 03:56:48,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:48,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:48,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4837425348374254) internal successors, (2236), 1507 states have internal predecessors, (2236), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:48,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2242 transitions. [2024-10-24 03:56:48,479 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2242 transitions. Word has length 359 [2024-10-24 03:56:48,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:48,480 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2242 transitions. [2024-10-24 03:56:48,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.4) internal successors, (347), 5 states have internal predecessors, (347), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:48,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2242 transitions. [2024-10-24 03:56:48,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2024-10-24 03:56:48,484 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:48,484 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:48,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 03:56:48,485 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:48,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:48,485 INFO L85 PathProgramCache]: Analyzing trace with hash 149554117, now seen corresponding path program 1 times [2024-10-24 03:56:48,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:48,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711639389] [2024-10-24 03:56:48,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:48,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:48,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:49,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:49,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:49,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:49,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:49,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:49,100 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:49,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:49,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711639389] [2024-10-24 03:56:49,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711639389] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:49,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:49,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:49,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728231370] [2024-10-24 03:56:49,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:49,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:49,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:49,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:49,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:49,104 INFO L87 Difference]: Start difference. First operand 1512 states and 2242 transitions. Second operand has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:49,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:49,585 INFO L93 Difference]: Finished difference Result 2731 states and 4045 transitions. [2024-10-24 03:56:49,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:49,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 360 [2024-10-24 03:56:49,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:49,588 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:49,588 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:49,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:49,590 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4125 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4128 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:49,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4128 Valid, 3858 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:56:49,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:49,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:49,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4830789648307896) internal successors, (2235), 1507 states have internal predecessors, (2235), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:49,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2241 transitions. [2024-10-24 03:56:49,613 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2241 transitions. Word has length 360 [2024-10-24 03:56:49,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:49,614 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2241 transitions. [2024-10-24 03:56:49,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:49,615 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2241 transitions. [2024-10-24 03:56:49,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2024-10-24 03:56:49,617 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:49,617 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:49,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 03:56:49,617 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:49,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:49,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1465451281, now seen corresponding path program 1 times [2024-10-24 03:56:49,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:49,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103327206] [2024-10-24 03:56:49,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:49,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:49,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:50,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:50,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:50,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:50,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:50,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:50,228 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:50,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:50,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103327206] [2024-10-24 03:56:50,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103327206] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:50,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:50,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:50,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527613754] [2024-10-24 03:56:50,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:50,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:50,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:50,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:50,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:50,230 INFO L87 Difference]: Start difference. First operand 1512 states and 2241 transitions. Second operand has 5 states, 5 states have (on average 69.8) internal successors, (349), 5 states have internal predecessors, (349), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:50,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:50,677 INFO L93 Difference]: Finished difference Result 2731 states and 4043 transitions. [2024-10-24 03:56:50,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:50,678 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.8) internal successors, (349), 5 states have internal predecessors, (349), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 361 [2024-10-24 03:56:50,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:50,681 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:50,681 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:50,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:50,684 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4117 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4120 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:50,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4120 Valid, 3858 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:56:50,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:50,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:50,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4824153948241539) internal successors, (2234), 1507 states have internal predecessors, (2234), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:50,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2240 transitions. [2024-10-24 03:56:50,710 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2240 transitions. Word has length 361 [2024-10-24 03:56:50,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:50,711 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2240 transitions. [2024-10-24 03:56:50,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.8) internal successors, (349), 5 states have internal predecessors, (349), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:50,711 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2240 transitions. [2024-10-24 03:56:50,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2024-10-24 03:56:50,713 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:50,713 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:50,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-24 03:56:50,714 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:50,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:50,714 INFO L85 PathProgramCache]: Analyzing trace with hash 648616894, now seen corresponding path program 1 times [2024-10-24 03:56:50,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:50,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119865268] [2024-10-24 03:56:50,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:50,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:51,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:51,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:51,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:51,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:51,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:51,262 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:51,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:51,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119865268] [2024-10-24 03:56:51,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119865268] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:51,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:51,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:51,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941862898] [2024-10-24 03:56:51,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:51,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:51,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:51,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:51,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:51,265 INFO L87 Difference]: Start difference. First operand 1512 states and 2240 transitions. Second operand has 5 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:51,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:51,742 INFO L93 Difference]: Finished difference Result 2731 states and 4041 transitions. [2024-10-24 03:56:51,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:51,743 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 362 [2024-10-24 03:56:51,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:51,745 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:51,745 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:51,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:51,748 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4109 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4112 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:51,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4112 Valid, 3858 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:56:51,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:51,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:51,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4817518248175183) internal successors, (2233), 1507 states have internal predecessors, (2233), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:51,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2239 transitions. [2024-10-24 03:56:51,771 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2239 transitions. Word has length 362 [2024-10-24 03:56:51,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:51,772 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2239 transitions. [2024-10-24 03:56:51,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.0) internal successors, (350), 5 states have internal predecessors, (350), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:51,772 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2239 transitions. [2024-10-24 03:56:51,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2024-10-24 03:56:51,775 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:51,775 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:51,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 03:56:51,775 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:51,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:51,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1308004714, now seen corresponding path program 1 times [2024-10-24 03:56:51,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:51,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252887292] [2024-10-24 03:56:51,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:51,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:52,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:52,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:52,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:52,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:52,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:52,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:52,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:52,481 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:52,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:52,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252887292] [2024-10-24 03:56:52,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252887292] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:52,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:52,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:52,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057437610] [2024-10-24 03:56:52,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:52,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:52,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:52,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:52,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:52,485 INFO L87 Difference]: Start difference. First operand 1512 states and 2239 transitions. Second operand has 5 states, 5 states have (on average 70.2) internal successors, (351), 5 states have internal predecessors, (351), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:52,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:52,937 INFO L93 Difference]: Finished difference Result 2731 states and 4039 transitions. [2024-10-24 03:56:52,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:52,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.2) internal successors, (351), 5 states have internal predecessors, (351), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 363 [2024-10-24 03:56:52,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:52,940 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:52,940 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:52,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:52,943 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 2179 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2182 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:52,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2182 Valid, 3864 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:56:52,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:52,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:52,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4810882548108826) internal successors, (2232), 1507 states have internal predecessors, (2232), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:52,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2238 transitions. [2024-10-24 03:56:52,968 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2238 transitions. Word has length 363 [2024-10-24 03:56:52,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:52,968 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2238 transitions. [2024-10-24 03:56:52,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.2) internal successors, (351), 5 states have internal predecessors, (351), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:52,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2238 transitions. [2024-10-24 03:56:52,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2024-10-24 03:56:52,971 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:52,971 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:52,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-24 03:56:52,972 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:52,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:52,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1736760265, now seen corresponding path program 1 times [2024-10-24 03:56:52,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:52,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574734037] [2024-10-24 03:56:52,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:52,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:53,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:53,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:53,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:53,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:53,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:53,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:53,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:53,727 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:53,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:53,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574734037] [2024-10-24 03:56:53,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574734037] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:53,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:53,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:53,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080247984] [2024-10-24 03:56:53,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:53,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:53,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:53,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:53,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:53,731 INFO L87 Difference]: Start difference. First operand 1512 states and 2238 transitions. Second operand has 5 states, 5 states have (on average 70.4) internal successors, (352), 5 states have internal predecessors, (352), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:54,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:54,201 INFO L93 Difference]: Finished difference Result 2731 states and 4037 transitions. [2024-10-24 03:56:54,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:54,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.4) internal successors, (352), 5 states have internal predecessors, (352), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 364 [2024-10-24 03:56:54,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:54,205 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:54,205 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:54,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:54,206 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4093 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4096 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:54,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4096 Valid, 3858 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:56:54,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:54,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:54,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4804246848042468) internal successors, (2231), 1507 states have internal predecessors, (2231), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:54,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2237 transitions. [2024-10-24 03:56:54,225 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2237 transitions. Word has length 364 [2024-10-24 03:56:54,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:54,226 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2237 transitions. [2024-10-24 03:56:54,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.4) internal successors, (352), 5 states have internal predecessors, (352), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:54,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2237 transitions. [2024-10-24 03:56:54,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2024-10-24 03:56:54,228 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:54,229 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:54,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-24 03:56:54,229 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:54,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:54,230 INFO L85 PathProgramCache]: Analyzing trace with hash -685332413, now seen corresponding path program 1 times [2024-10-24 03:56:54,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:54,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986049699] [2024-10-24 03:56:54,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:54,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:54,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:54,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:54,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:54,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:54,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:54,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:54,942 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:54,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:54,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986049699] [2024-10-24 03:56:54,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986049699] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:54,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:54,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:54,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430143312] [2024-10-24 03:56:54,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:54,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:54,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:54,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:54,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:54,949 INFO L87 Difference]: Start difference. First operand 1512 states and 2237 transitions. Second operand has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:55,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:55,393 INFO L93 Difference]: Finished difference Result 2731 states and 4035 transitions. [2024-10-24 03:56:55,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:55,394 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 365 [2024-10-24 03:56:55,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:55,396 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:55,396 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:55,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:55,399 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4085 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4088 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:55,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4088 Valid, 3858 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:56:55,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:55,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:55,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.479761114797611) internal successors, (2230), 1507 states have internal predecessors, (2230), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:55,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2236 transitions. [2024-10-24 03:56:55,420 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2236 transitions. Word has length 365 [2024-10-24 03:56:55,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:55,421 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2236 transitions. [2024-10-24 03:56:55,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:55,421 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2236 transitions. [2024-10-24 03:56:55,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2024-10-24 03:56:55,423 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:55,423 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:55,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-24 03:56:55,424 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:55,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:55,425 INFO L85 PathProgramCache]: Analyzing trace with hash 991518000, now seen corresponding path program 1 times [2024-10-24 03:56:55,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:55,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740899780] [2024-10-24 03:56:55,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:55,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:55,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:56,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:56,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:56,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:56,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:56,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:56,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:56,015 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:56,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:56,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740899780] [2024-10-24 03:56:56,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740899780] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:56,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:56,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:56,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988977236] [2024-10-24 03:56:56,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:56,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:56,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:56,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:56,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:56,019 INFO L87 Difference]: Start difference. First operand 1512 states and 2236 transitions. Second operand has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:56,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:56,426 INFO L93 Difference]: Finished difference Result 2731 states and 4033 transitions. [2024-10-24 03:56:56,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:56,427 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 366 [2024-10-24 03:56:56,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:56,430 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:56,430 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:56,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:56,432 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4077 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4080 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:56,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4080 Valid, 3858 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:56:56,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:56,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:56,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4790975447909755) internal successors, (2229), 1507 states have internal predecessors, (2229), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:56,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2235 transitions. [2024-10-24 03:56:56,453 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2235 transitions. Word has length 366 [2024-10-24 03:56:56,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:56,453 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2235 transitions. [2024-10-24 03:56:56,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.8) internal successors, (354), 5 states have internal predecessors, (354), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:56,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2235 transitions. [2024-10-24 03:56:56,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2024-10-24 03:56:56,456 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:56,456 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:56,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-24 03:56:56,456 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:56,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:56,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1015773284, now seen corresponding path program 1 times [2024-10-24 03:56:56,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:56,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536292335] [2024-10-24 03:56:56,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:56,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:56,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:57,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:57,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:57,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:57,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:57,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:57,339 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:57,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:57,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536292335] [2024-10-24 03:56:57,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536292335] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:57,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:57,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:57,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012847342] [2024-10-24 03:56:57,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:57,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:57,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:57,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:57,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:57,343 INFO L87 Difference]: Start difference. First operand 1512 states and 2235 transitions. Second operand has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:57,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:57,883 INFO L93 Difference]: Finished difference Result 2731 states and 4031 transitions. [2024-10-24 03:56:57,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:57,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 367 [2024-10-24 03:56:57,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:57,887 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:57,887 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:57,889 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:57,890 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 2163 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2166 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:57,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2166 Valid, 3864 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 03:56:57,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:57,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:57,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4784339747843398) internal successors, (2228), 1507 states have internal predecessors, (2228), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:57,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2234 transitions. [2024-10-24 03:56:57,920 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2234 transitions. Word has length 367 [2024-10-24 03:56:57,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:57,923 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2234 transitions. [2024-10-24 03:56:57,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:57,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2234 transitions. [2024-10-24 03:56:57,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-10-24 03:56:57,927 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:57,928 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:57,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-24 03:56:57,928 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:57,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:57,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1117587113, now seen corresponding path program 1 times [2024-10-24 03:56:57,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:57,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790763834] [2024-10-24 03:56:57,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:57,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:58,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:58,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:58,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:58,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:58,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:58,537 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:58,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:58,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790763834] [2024-10-24 03:56:58,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790763834] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:58,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:58,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:58,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716471793] [2024-10-24 03:56:58,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:58,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:58,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:58,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:58,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:58,540 INFO L87 Difference]: Start difference. First operand 1512 states and 2234 transitions. Second operand has 5 states, 5 states have (on average 71.2) internal successors, (356), 5 states have internal predecessors, (356), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:58,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:58,921 INFO L93 Difference]: Finished difference Result 2731 states and 4029 transitions. [2024-10-24 03:56:58,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:58,921 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.2) internal successors, (356), 5 states have internal predecessors, (356), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 368 [2024-10-24 03:56:58,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:58,924 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:58,924 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:58,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:58,927 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4061 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4064 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:58,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4064 Valid, 3858 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 03:56:58,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:56:58,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:56:58,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.477770404777704) internal successors, (2227), 1507 states have internal predecessors, (2227), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:56:58,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2233 transitions. [2024-10-24 03:56:58,948 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2233 transitions. Word has length 368 [2024-10-24 03:56:58,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:58,949 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2233 transitions. [2024-10-24 03:56:58,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.2) internal successors, (356), 5 states have internal predecessors, (356), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:58,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2233 transitions. [2024-10-24 03:56:58,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2024-10-24 03:56:58,951 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:58,952 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:58,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-24 03:56:58,952 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:58,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:58,952 INFO L85 PathProgramCache]: Analyzing trace with hash -95719563, now seen corresponding path program 1 times [2024-10-24 03:56:58,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:58,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155512824] [2024-10-24 03:56:58,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:58,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:59,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:59,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:56:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:59,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:56:59,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:59,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:56:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:59,610 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:56:59,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:59,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155512824] [2024-10-24 03:56:59,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155512824] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:59,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:59,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:59,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879582848] [2024-10-24 03:56:59,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:59,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:59,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:59,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:59,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:59,612 INFO L87 Difference]: Start difference. First operand 1512 states and 2233 transitions. Second operand has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:56:59,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:59,985 INFO L93 Difference]: Finished difference Result 2731 states and 4027 transitions. [2024-10-24 03:56:59,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:59,986 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 369 [2024-10-24 03:56:59,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:59,988 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:56:59,988 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:56:59,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:56:59,989 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4053 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4056 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:59,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4056 Valid, 3858 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 03:56:59,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:57:00,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:57:00,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4771068347710683) internal successors, (2226), 1507 states have internal predecessors, (2226), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:57:00,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2232 transitions. [2024-10-24 03:57:00,010 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2232 transitions. Word has length 369 [2024-10-24 03:57:00,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:57:00,011 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2232 transitions. [2024-10-24 03:57:00,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:00,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2232 transitions. [2024-10-24 03:57:00,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2024-10-24 03:57:00,013 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:57:00,014 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:00,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-24 03:57:00,014 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:57:00,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:57:00,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1166057310, now seen corresponding path program 1 times [2024-10-24 03:57:00,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:57:00,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457094026] [2024-10-24 03:57:00,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:57:00,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:57:00,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:00,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:57:00,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:00,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:57:00,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:00,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:57:00,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:00,634 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:57:00,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:57:00,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457094026] [2024-10-24 03:57:00,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457094026] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:57:00,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:57:00,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:57:00,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475682698] [2024-10-24 03:57:00,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:57:00,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:57:00,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:57:00,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:57:00,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:57:00,637 INFO L87 Difference]: Start difference. First operand 1512 states and 2232 transitions. Second operand has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:01,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:57:01,063 INFO L93 Difference]: Finished difference Result 2731 states and 4025 transitions. [2024-10-24 03:57:01,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:57:01,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 370 [2024-10-24 03:57:01,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:57:01,067 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:57:01,067 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:57:01,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:57:01,071 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4045 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4048 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:57:01,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4048 Valid, 3858 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:57:01,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:57:01,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:57:01,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4764432647644326) internal successors, (2225), 1507 states have internal predecessors, (2225), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:57:01,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2231 transitions. [2024-10-24 03:57:01,093 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2231 transitions. Word has length 370 [2024-10-24 03:57:01,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:57:01,094 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2231 transitions. [2024-10-24 03:57:01,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:01,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2231 transitions. [2024-10-24 03:57:01,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2024-10-24 03:57:01,096 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:57:01,097 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:01,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-24 03:57:01,097 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:57:01,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:57:01,097 INFO L85 PathProgramCache]: Analyzing trace with hash 435593166, now seen corresponding path program 1 times [2024-10-24 03:57:01,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:57:01,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439731599] [2024-10-24 03:57:01,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:57:01,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:57:01,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:01,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:57:01,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:01,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:57:01,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:01,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:57:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:01,767 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:57:01,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:57:01,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439731599] [2024-10-24 03:57:01,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439731599] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:57:01,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:57:01,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:57:01,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433287926] [2024-10-24 03:57:01,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:57:01,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:57:01,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:57:01,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:57:01,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:57:01,770 INFO L87 Difference]: Start difference. First operand 1512 states and 2231 transitions. Second operand has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:02,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:57:02,176 INFO L93 Difference]: Finished difference Result 2731 states and 4023 transitions. [2024-10-24 03:57:02,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:57:02,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 371 [2024-10-24 03:57:02,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:57:02,179 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:57:02,179 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:57:02,180 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:57:02,181 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4037 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4040 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:57:02,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4040 Valid, 3858 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:57:02,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:57:02,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:57:02,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.475779694757797) internal successors, (2224), 1507 states have internal predecessors, (2224), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:57:02,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2230 transitions. [2024-10-24 03:57:02,205 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2230 transitions. Word has length 371 [2024-10-24 03:57:02,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:57:02,206 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2230 transitions. [2024-10-24 03:57:02,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:02,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2230 transitions. [2024-10-24 03:57:02,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2024-10-24 03:57:02,209 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:57:02,209 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:02,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-24 03:57:02,210 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:57:02,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:57:02,210 INFO L85 PathProgramCache]: Analyzing trace with hash 93956891, now seen corresponding path program 1 times [2024-10-24 03:57:02,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:57:02,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965690269] [2024-10-24 03:57:02,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:57:02,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:57:02,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:02,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:57:02,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:02,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:57:02,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:02,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:57:02,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:02,809 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:57:02,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:57:02,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965690269] [2024-10-24 03:57:02,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965690269] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:57:02,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:57:02,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:57:02,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101991066] [2024-10-24 03:57:02,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:57:02,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:57:02,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:57:02,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:57:02,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:57:02,812 INFO L87 Difference]: Start difference. First operand 1512 states and 2230 transitions. Second operand has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:03,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:57:03,205 INFO L93 Difference]: Finished difference Result 2731 states and 4021 transitions. [2024-10-24 03:57:03,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:57:03,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 372 [2024-10-24 03:57:03,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:57:03,209 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:57:03,209 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:57:03,211 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:57:03,212 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 2143 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2146 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:57:03,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2146 Valid, 3864 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:57:03,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:57:03,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:57:03,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4751161247511613) internal successors, (2223), 1507 states have internal predecessors, (2223), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:57:03,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2229 transitions. [2024-10-24 03:57:03,235 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2229 transitions. Word has length 372 [2024-10-24 03:57:03,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:57:03,236 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2229 transitions. [2024-10-24 03:57:03,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:03,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2229 transitions. [2024-10-24 03:57:03,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-10-24 03:57:03,238 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:57:03,239 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:03,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-24 03:57:03,239 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:57:03,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:57:03,240 INFO L85 PathProgramCache]: Analyzing trace with hash 396449959, now seen corresponding path program 1 times [2024-10-24 03:57:03,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:57:03,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942229596] [2024-10-24 03:57:03,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:57:03,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:57:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:03,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:57:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:03,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:57:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:03,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:57:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:03,900 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:57:03,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:57:03,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942229596] [2024-10-24 03:57:03,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942229596] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:57:03,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:57:03,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:57:03,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502701094] [2024-10-24 03:57:03,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:57:03,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:57:03,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:57:03,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:57:03,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:57:03,903 INFO L87 Difference]: Start difference. First operand 1512 states and 2229 transitions. Second operand has 5 states, 5 states have (on average 72.2) internal successors, (361), 5 states have internal predecessors, (361), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:04,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:57:04,301 INFO L93 Difference]: Finished difference Result 2731 states and 4019 transitions. [2024-10-24 03:57:04,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:57:04,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 72.2) internal successors, (361), 5 states have internal predecessors, (361), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 373 [2024-10-24 03:57:04,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:57:04,304 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:57:04,305 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:57:04,306 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:57:04,307 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4021 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4024 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:57:04,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4024 Valid, 3858 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:57:04,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:57:04,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:57:04,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4744525547445255) internal successors, (2222), 1507 states have internal predecessors, (2222), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:57:04,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2228 transitions. [2024-10-24 03:57:04,323 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2228 transitions. Word has length 373 [2024-10-24 03:57:04,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:57:04,324 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2228 transitions. [2024-10-24 03:57:04,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.2) internal successors, (361), 5 states have internal predecessors, (361), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:04,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2228 transitions. [2024-10-24 03:57:04,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2024-10-24 03:57:04,326 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:57:04,326 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:04,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-24 03:57:04,327 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:57:04,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:57:04,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1579492884, now seen corresponding path program 1 times [2024-10-24 03:57:04,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:57:04,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855049809] [2024-10-24 03:57:04,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:57:04,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:57:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:04,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:57:04,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:04,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:57:04,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:04,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:57:04,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:04,932 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:57:04,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:57:04,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855049809] [2024-10-24 03:57:04,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855049809] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:57:04,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:57:04,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:57:04,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409829523] [2024-10-24 03:57:04,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:57:04,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:57:04,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:57:04,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:57:04,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:57:04,935 INFO L87 Difference]: Start difference. First operand 1512 states and 2228 transitions. Second operand has 5 states, 5 states have (on average 72.4) internal successors, (362), 5 states have internal predecessors, (362), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:05,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:57:05,328 INFO L93 Difference]: Finished difference Result 2731 states and 4017 transitions. [2024-10-24 03:57:05,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:57:05,328 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 72.4) internal successors, (362), 5 states have internal predecessors, (362), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 374 [2024-10-24 03:57:05,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:57:05,330 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:57:05,330 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:57:05,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:57:05,331 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 2135 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2138 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:57:05,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2138 Valid, 3864 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:57:05,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:57:05,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:57:05,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4737889847378898) internal successors, (2221), 1507 states have internal predecessors, (2221), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:57:05,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2227 transitions. [2024-10-24 03:57:05,345 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2227 transitions. Word has length 374 [2024-10-24 03:57:05,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:57:05,346 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2227 transitions. [2024-10-24 03:57:05,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.4) internal successors, (362), 5 states have internal predecessors, (362), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:05,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2227 transitions. [2024-10-24 03:57:05,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2024-10-24 03:57:05,349 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:57:05,349 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:05,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-24 03:57:05,349 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:57:05,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:57:05,350 INFO L85 PathProgramCache]: Analyzing trace with hash -547956224, now seen corresponding path program 1 times [2024-10-24 03:57:05,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:57:05,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334139344] [2024-10-24 03:57:05,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:57:05,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:57:05,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:05,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:57:05,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:05,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:57:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:05,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:57:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:05,914 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:57:05,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:57:05,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334139344] [2024-10-24 03:57:05,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334139344] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:57:05,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:57:05,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:57:05,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960344517] [2024-10-24 03:57:05,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:57:05,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:57:05,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:57:05,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:57:05,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:57:05,917 INFO L87 Difference]: Start difference. First operand 1512 states and 2227 transitions. Second operand has 5 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:06,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:57:06,295 INFO L93 Difference]: Finished difference Result 2731 states and 4015 transitions. [2024-10-24 03:57:06,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:57:06,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 375 [2024-10-24 03:57:06,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:57:06,297 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:57:06,297 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:57:06,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:57:06,299 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 4005 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4008 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 03:57:06,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4008 Valid, 3858 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 03:57:06,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:57:06,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:57:06,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4731254147312542) internal successors, (2220), 1507 states have internal predecessors, (2220), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:57:06,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2226 transitions. [2024-10-24 03:57:06,318 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2226 transitions. Word has length 375 [2024-10-24 03:57:06,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:57:06,319 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2226 transitions. [2024-10-24 03:57:06,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:06,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2226 transitions. [2024-10-24 03:57:06,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2024-10-24 03:57:06,322 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:57:06,322 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:06,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-24 03:57:06,323 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:57:06,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:57:06,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1438323085, now seen corresponding path program 1 times [2024-10-24 03:57:06,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:57:06,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753878427] [2024-10-24 03:57:06,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:57:06,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:57:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:07,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:57:07,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:07,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:57:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:07,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:57:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:07,018 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:57:07,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:57:07,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753878427] [2024-10-24 03:57:07,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753878427] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:57:07,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:57:07,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:57:07,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930344531] [2024-10-24 03:57:07,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:57:07,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:57:07,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:57:07,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:57:07,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:57:07,023 INFO L87 Difference]: Start difference. First operand 1512 states and 2226 transitions. Second operand has 5 states, 5 states have (on average 72.8) internal successors, (364), 5 states have internal predecessors, (364), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:07,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:57:07,483 INFO L93 Difference]: Finished difference Result 2731 states and 4013 transitions. [2024-10-24 03:57:07,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:57:07,484 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 72.8) internal successors, (364), 5 states have internal predecessors, (364), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 376 [2024-10-24 03:57:07,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:57:07,486 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:57:07,486 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:57:07,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:57:07,488 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 3997 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4000 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:57:07,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4000 Valid, 3858 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:57:07,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:57:07,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:57:07,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4724618447246185) internal successors, (2219), 1507 states have internal predecessors, (2219), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:57:07,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2225 transitions. [2024-10-24 03:57:07,508 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2225 transitions. Word has length 376 [2024-10-24 03:57:07,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:57:07,508 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2225 transitions. [2024-10-24 03:57:07,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.8) internal successors, (364), 5 states have internal predecessors, (364), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:07,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2225 transitions. [2024-10-24 03:57:07,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2024-10-24 03:57:07,511 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:57:07,511 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:07,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-10-24 03:57:07,511 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:57:07,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:57:07,512 INFO L85 PathProgramCache]: Analyzing trace with hash -201169959, now seen corresponding path program 1 times [2024-10-24 03:57:07,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:57:07,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122835209] [2024-10-24 03:57:07,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:57:07,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:57:07,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:08,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:57:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:08,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:57:08,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:08,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:57:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:08,044 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:57:08,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:57:08,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122835209] [2024-10-24 03:57:08,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122835209] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:57:08,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:57:08,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:57:08,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075489187] [2024-10-24 03:57:08,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:57:08,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:57:08,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:57:08,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:57:08,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:57:08,050 INFO L87 Difference]: Start difference. First operand 1512 states and 2225 transitions. Second operand has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:08,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:57:08,448 INFO L93 Difference]: Finished difference Result 2731 states and 4011 transitions. [2024-10-24 03:57:08,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:57:08,449 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 377 [2024-10-24 03:57:08,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:57:08,450 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:57:08,450 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:57:08,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:57:08,452 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 3989 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3992 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 03:57:08,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3992 Valid, 3858 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 03:57:08,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:57:08,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:57:08,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4717982747179827) internal successors, (2218), 1507 states have internal predecessors, (2218), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:57:08,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2224 transitions. [2024-10-24 03:57:08,472 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2224 transitions. Word has length 377 [2024-10-24 03:57:08,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:57:08,472 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2224 transitions. [2024-10-24 03:57:08,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:08,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2224 transitions. [2024-10-24 03:57:08,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2024-10-24 03:57:08,474 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:57:08,475 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:08,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-10-24 03:57:08,475 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:57:08,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:57:08,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1431612806, now seen corresponding path program 1 times [2024-10-24 03:57:08,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:57:08,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9849823] [2024-10-24 03:57:08,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:57:08,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:57:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:09,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:57:09,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:09,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:57:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:09,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:57:09,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:09,115 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:57:09,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:57:09,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9849823] [2024-10-24 03:57:09,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9849823] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:57:09,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:57:09,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:57:09,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398224113] [2024-10-24 03:57:09,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:57:09,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:57:09,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:57:09,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:57:09,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:57:09,117 INFO L87 Difference]: Start difference. First operand 1512 states and 2224 transitions. Second operand has 5 states, 5 states have (on average 73.2) internal successors, (366), 5 states have internal predecessors, (366), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:09,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:57:09,486 INFO L93 Difference]: Finished difference Result 2731 states and 4009 transitions. [2024-10-24 03:57:09,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:57:09,486 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.2) internal successors, (366), 5 states have internal predecessors, (366), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 378 [2024-10-24 03:57:09,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:57:09,488 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:57:09,488 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:57:09,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:57:09,490 INFO L432 NwaCegarLoop]: 1928 mSDtfsCounter, 2119 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2122 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 03:57:09,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2122 Valid, 3864 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 03:57:09,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:57:09,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:57:09,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.471134704711347) internal successors, (2217), 1507 states have internal predecessors, (2217), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:57:09,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2223 transitions. [2024-10-24 03:57:09,509 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2223 transitions. Word has length 378 [2024-10-24 03:57:09,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:57:09,510 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2223 transitions. [2024-10-24 03:57:09,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.2) internal successors, (366), 5 states have internal predecessors, (366), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:09,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2223 transitions. [2024-10-24 03:57:09,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2024-10-24 03:57:09,512 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:57:09,512 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:09,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-10-24 03:57:09,513 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:57:09,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:57:09,513 INFO L85 PathProgramCache]: Analyzing trace with hash 258946610, now seen corresponding path program 1 times [2024-10-24 03:57:09,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:57:09,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312840595] [2024-10-24 03:57:09,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:57:09,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:57:09,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:10,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:57:10,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:10,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:57:10,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:10,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:57:10,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:10,450 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:57:10,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:57:10,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312840595] [2024-10-24 03:57:10,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312840595] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:57:10,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:57:10,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:57:10,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290920011] [2024-10-24 03:57:10,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:57:10,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:57:10,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:57:10,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:57:10,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:57:10,452 INFO L87 Difference]: Start difference. First operand 1512 states and 2223 transitions. Second operand has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:10,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:57:10,751 INFO L93 Difference]: Finished difference Result 2731 states and 4007 transitions. [2024-10-24 03:57:10,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:57:10,752 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 379 [2024-10-24 03:57:10,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:57:10,754 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:57:10,754 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:57:10,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:57:10,756 INFO L432 NwaCegarLoop]: 2056 mSDtfsCounter, 1978 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1978 SdHoareTripleChecker+Valid, 4114 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 03:57:10,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1978 Valid, 4114 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 03:57:10,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:57:10,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:57:10,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4704711347047112) internal successors, (2216), 1507 states have internal predecessors, (2216), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:57:10,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2222 transitions. [2024-10-24 03:57:10,784 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2222 transitions. Word has length 379 [2024-10-24 03:57:10,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:57:10,784 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2222 transitions. [2024-10-24 03:57:10,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:10,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2222 transitions. [2024-10-24 03:57:10,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2024-10-24 03:57:10,787 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:57:10,787 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:10,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-10-24 03:57:10,787 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:57:10,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:57:10,788 INFO L85 PathProgramCache]: Analyzing trace with hash 2079424268, now seen corresponding path program 1 times [2024-10-24 03:57:10,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:57:10,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834406072] [2024-10-24 03:57:10,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:57:10,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:57:11,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:11,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:57:11,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:11,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:57:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:11,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:57:11,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:11,309 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:57:11,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:57:11,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834406072] [2024-10-24 03:57:11,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834406072] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:57:11,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:57:11,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:57:11,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183453054] [2024-10-24 03:57:11,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:57:11,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:57:11,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:57:11,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:57:11,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:57:11,311 INFO L87 Difference]: Start difference. First operand 1512 states and 2222 transitions. Second operand has 5 states, 5 states have (on average 73.6) internal successors, (368), 5 states have internal predecessors, (368), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:11,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:57:11,497 INFO L93 Difference]: Finished difference Result 2741 states and 4019 transitions. [2024-10-24 03:57:11,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 03:57:11,497 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.6) internal successors, (368), 5 states have internal predecessors, (368), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 380 [2024-10-24 03:57:11,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:57:11,499 INFO L225 Difference]: With dead ends: 2741 [2024-10-24 03:57:11,499 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:57:11,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-24 03:57:11,501 INFO L432 NwaCegarLoop]: 2206 mSDtfsCounter, 1997 mSDsluCounter, 4267 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1997 SdHoareTripleChecker+Valid, 6473 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:57:11,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1997 Valid, 6473 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 03:57:11,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:57:11,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:57:11,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4698075646980757) internal successors, (2215), 1507 states have internal predecessors, (2215), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:57:11,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2221 transitions. [2024-10-24 03:57:11,516 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2221 transitions. Word has length 380 [2024-10-24 03:57:11,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:57:11,517 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2221 transitions. [2024-10-24 03:57:11,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.6) internal successors, (368), 5 states have internal predecessors, (368), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:11,517 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2221 transitions. [2024-10-24 03:57:11,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2024-10-24 03:57:11,518 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:57:11,519 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:11,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-10-24 03:57:11,519 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:57:11,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:57:11,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1254376849, now seen corresponding path program 1 times [2024-10-24 03:57:11,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:57:11,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628143597] [2024-10-24 03:57:11,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:57:11,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:57:11,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:12,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:57:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:12,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:57:12,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:12,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:57:12,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:12,187 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:57:12,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:57:12,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628143597] [2024-10-24 03:57:12,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628143597] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:57:12,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:57:12,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:57:12,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357401967] [2024-10-24 03:57:12,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:57:12,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:57:12,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:57:12,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:57:12,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:57:12,190 INFO L87 Difference]: Start difference. First operand 1512 states and 2221 transitions. Second operand has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:12,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:57:12,478 INFO L93 Difference]: Finished difference Result 2731 states and 4003 transitions. [2024-10-24 03:57:12,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:57:12,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 381 [2024-10-24 03:57:12,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:57:12,482 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:57:12,482 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:57:12,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:57:12,484 INFO L432 NwaCegarLoop]: 2056 mSDtfsCounter, 4187 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4190 SdHoareTripleChecker+Valid, 4114 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:57:12,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4190 Valid, 4114 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 03:57:12,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:57:12,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:57:12,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.46914399469144) internal successors, (2214), 1507 states have internal predecessors, (2214), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:57:12,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2220 transitions. [2024-10-24 03:57:12,510 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2220 transitions. Word has length 381 [2024-10-24 03:57:12,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:57:12,511 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2220 transitions. [2024-10-24 03:57:12,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:12,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2220 transitions. [2024-10-24 03:57:12,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2024-10-24 03:57:12,515 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:57:12,516 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:12,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-10-24 03:57:12,516 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:57:12,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:57:12,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1626784083, now seen corresponding path program 1 times [2024-10-24 03:57:12,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:57:12,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084104390] [2024-10-24 03:57:12,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:57:12,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:57:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:13,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:57:13,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:13,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:57:13,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:13,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:57:13,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:13,095 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:57:13,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:57:13,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084104390] [2024-10-24 03:57:13,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084104390] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:57:13,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:57:13,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:57:13,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895570647] [2024-10-24 03:57:13,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:57:13,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:57:13,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:57:13,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:57:13,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:57:13,098 INFO L87 Difference]: Start difference. First operand 1512 states and 2220 transitions. Second operand has 5 states, 5 states have (on average 74.0) internal successors, (370), 5 states have internal predecessors, (370), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:13,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:57:13,320 INFO L93 Difference]: Finished difference Result 2731 states and 4001 transitions. [2024-10-24 03:57:13,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:57:13,321 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 74.0) internal successors, (370), 5 states have internal predecessors, (370), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 382 [2024-10-24 03:57:13,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:57:13,323 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:57:13,323 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:57:13,324 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:57:13,324 INFO L432 NwaCegarLoop]: 2056 mSDtfsCounter, 2202 mSDsluCounter, 2064 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2205 SdHoareTripleChecker+Valid, 4120 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:57:13,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2205 Valid, 4120 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 03:57:13,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:57:13,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:57:13,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4684804246848042) internal successors, (2213), 1507 states have internal predecessors, (2213), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:57:13,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2219 transitions. [2024-10-24 03:57:13,337 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2219 transitions. Word has length 382 [2024-10-24 03:57:13,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:57:13,338 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2219 transitions. [2024-10-24 03:57:13,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.0) internal successors, (370), 5 states have internal predecessors, (370), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:13,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2219 transitions. [2024-10-24 03:57:13,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2024-10-24 03:57:13,340 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:57:13,340 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:13,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-10-24 03:57:13,341 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:57:13,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:57:13,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1440004758, now seen corresponding path program 1 times [2024-10-24 03:57:13,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:57:13,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912040443] [2024-10-24 03:57:13,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:57:13,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:57:13,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:13,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:57:13,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:13,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:57:13,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:13,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:57:13,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:13,859 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:57:13,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:57:13,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912040443] [2024-10-24 03:57:13,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912040443] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:57:13,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:57:13,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:57:13,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841064952] [2024-10-24 03:57:13,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:57:13,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:57:13,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:57:13,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:57:13,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:57:13,861 INFO L87 Difference]: Start difference. First operand 1512 states and 2219 transitions. Second operand has 5 states, 5 states have (on average 74.2) internal successors, (371), 5 states have internal predecessors, (371), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:14,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:57:14,086 INFO L93 Difference]: Finished difference Result 2731 states and 3999 transitions. [2024-10-24 03:57:14,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:57:14,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 74.2) internal successors, (371), 5 states have internal predecessors, (371), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 383 [2024-10-24 03:57:14,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:57:14,088 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:57:14,089 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:57:14,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:57:14,090 INFO L432 NwaCegarLoop]: 2056 mSDtfsCounter, 2198 mSDsluCounter, 2064 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2201 SdHoareTripleChecker+Valid, 4120 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:57:14,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2201 Valid, 4120 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 03:57:14,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:57:14,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:57:14,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4678168546781685) internal successors, (2212), 1507 states have internal predecessors, (2212), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:57:14,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2218 transitions. [2024-10-24 03:57:14,104 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2218 transitions. Word has length 383 [2024-10-24 03:57:14,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:57:14,105 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2218 transitions. [2024-10-24 03:57:14,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.2) internal successors, (371), 5 states have internal predecessors, (371), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:14,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2218 transitions. [2024-10-24 03:57:14,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2024-10-24 03:57:14,107 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:57:14,107 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:14,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-10-24 03:57:14,107 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:57:14,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:57:14,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1793012966, now seen corresponding path program 1 times [2024-10-24 03:57:14,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:57:14,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661008762] [2024-10-24 03:57:14,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:57:14,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:57:14,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:14,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:57:14,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:14,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:57:14,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:14,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:57:14,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:14,656 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:57:14,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:57:14,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661008762] [2024-10-24 03:57:14,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661008762] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:57:14,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:57:14,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:57:14,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873575843] [2024-10-24 03:57:14,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:57:14,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:57:14,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:57:14,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:57:14,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:57:14,658 INFO L87 Difference]: Start difference. First operand 1512 states and 2218 transitions. Second operand has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:14,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:57:14,875 INFO L93 Difference]: Finished difference Result 2731 states and 3997 transitions. [2024-10-24 03:57:14,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:57:14,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 384 [2024-10-24 03:57:14,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:57:14,877 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:57:14,877 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:57:14,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:57:14,878 INFO L432 NwaCegarLoop]: 2056 mSDtfsCounter, 2194 mSDsluCounter, 2064 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2197 SdHoareTripleChecker+Valid, 4120 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:57:14,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2197 Valid, 4120 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 03:57:14,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:57:14,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:57:14,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.467153284671533) internal successors, (2211), 1507 states have internal predecessors, (2211), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:57:14,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2217 transitions. [2024-10-24 03:57:14,891 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2217 transitions. Word has length 384 [2024-10-24 03:57:14,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:57:14,891 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2217 transitions. [2024-10-24 03:57:14,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:14,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2217 transitions. [2024-10-24 03:57:14,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2024-10-24 03:57:14,893 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:57:14,894 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:14,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-10-24 03:57:14,894 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:57:14,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:57:14,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1007213117, now seen corresponding path program 1 times [2024-10-24 03:57:14,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:57:14,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250562637] [2024-10-24 03:57:14,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:57:14,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:57:15,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:15,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 03:57:15,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:15,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-24 03:57:15,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:15,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 03:57:15,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:15,390 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 03:57:15,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:57:15,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250562637] [2024-10-24 03:57:15,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250562637] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:57:15,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:57:15,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:57:15,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345141129] [2024-10-24 03:57:15,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:57:15,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:57:15,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:57:15,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:57:15,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:57:15,391 INFO L87 Difference]: Start difference. First operand 1512 states and 2217 transitions. Second operand has 5 states, 5 states have (on average 74.6) internal successors, (373), 5 states have internal predecessors, (373), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:15,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:57:15,618 INFO L93 Difference]: Finished difference Result 2731 states and 3995 transitions. [2024-10-24 03:57:15,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:57:15,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 74.6) internal successors, (373), 5 states have internal predecessors, (373), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 385 [2024-10-24 03:57:15,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:57:15,621 INFO L225 Difference]: With dead ends: 2731 [2024-10-24 03:57:15,621 INFO L226 Difference]: Without dead ends: 1512 [2024-10-24 03:57:15,622 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 03:57:15,622 INFO L432 NwaCegarLoop]: 2056 mSDtfsCounter, 4149 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4152 SdHoareTripleChecker+Valid, 4114 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 03:57:15,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4152 Valid, 4114 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 03:57:15,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2024-10-24 03:57:15,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2024-10-24 03:57:15,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1507 states have (on average 1.4664897146648972) internal successors, (2210), 1507 states have internal predecessors, (2210), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 03:57:15,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2216 transitions. [2024-10-24 03:57:15,637 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2216 transitions. Word has length 385 [2024-10-24 03:57:15,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:57:15,637 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 2216 transitions. [2024-10-24 03:57:15,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.6) internal successors, (373), 5 states have internal predecessors, (373), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 03:57:15,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2216 transitions. [2024-10-24 03:57:15,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2024-10-24 03:57:15,640 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:57:15,640 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:15,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-10-24 03:57:15,641 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:57:15,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:57:15,641 INFO L85 PathProgramCache]: Analyzing trace with hash 54079706, now seen corresponding path program 1 times [2024-10-24 03:57:15,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:57:15,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312027529] [2024-10-24 03:57:15,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:57:15,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms