./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_d128_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_d128_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 128698adc3d9e0ce5ad1e26812d991e870be220df87a13627edd7b33906766df --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 03:55:53,028 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 03:55:53,077 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-24 03:55:53,080 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 03:55:53,080 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 03:55:53,101 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 03:55:53,102 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 03:55:53,102 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 03:55:53,103 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 03:55:53,104 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 03:55:53,104 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 03:55:53,104 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 03:55:53,105 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 03:55:53,106 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 03:55:53,106 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 03:55:53,107 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 03:55:53,107 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 03:55:53,107 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 03:55:53,107 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 03:55:53,108 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 03:55:53,108 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 03:55:53,111 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 03:55:53,111 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 03:55:53,111 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 03:55:53,111 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 03:55:53,111 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 03:55:53,112 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 03:55:53,112 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 03:55:53,112 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 03:55:53,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 03:55:53,112 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 03:55:53,112 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 03:55:53,113 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 03:55:53,113 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 03:55:53,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 03:55:53,113 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 03:55:53,113 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 03:55:53,113 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 03:55:53,114 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 03:55:53,114 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 128698adc3d9e0ce5ad1e26812d991e870be220df87a13627edd7b33906766df [2024-10-24 03:55:53,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 03:55:53,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 03:55:53,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 03:55:53,329 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 03:55:53,329 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 03:55:53,330 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d128_e0.c [2024-10-24 03:55:54,540 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 03:55:54,844 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 03:55:54,845 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w64_d128_e0.c [2024-10-24 03:55:54,869 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/424274f0c/e5b0e46f8e584f558a9cadcb1d999108/FLAGf8130d73f [2024-10-24 03:55:55,104 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/424274f0c/e5b0e46f8e584f558a9cadcb1d999108 [2024-10-24 03:55:55,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 03:55:55,107 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 03:55:55,112 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 03:55:55,112 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 03:55:55,116 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 03:55:55,117 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:55:55" (1/1) ... [2024-10-24 03:55:55,118 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f9c1ba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:55:55, skipping insertion in model container [2024-10-24 03:55:55,118 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:55:55" (1/1) ... [2024-10-24 03:55:55,234 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 03:55:55,427 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_d128_e0.c[1281,1294] [2024-10-24 03:55:55,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 03:55:55,840 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 03:55:55,848 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_d128_e0.c[1281,1294] [2024-10-24 03:55:56,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 03:55:56,041 INFO L204 MainTranslator]: Completed translation [2024-10-24 03:55:56,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:55:56 WrapperNode [2024-10-24 03:55:56,042 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 03:55:56,043 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 03:55:56,043 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 03:55:56,043 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 03:55:56,048 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:55:56" (1/1) ... [2024-10-24 03:55:56,115 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:55:56" (1/1) ... [2024-10-24 03:55:56,773 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 10271 [2024-10-24 03:55:56,774 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 03:55:56,778 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 03:55:56,778 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 03:55:56,778 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 03:55:56,790 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:55:56" (1/1) ... [2024-10-24 03:55:56,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:55:56" (1/1) ... [2024-10-24 03:55:57,064 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:55:56" (1/1) ... [2024-10-24 03:55:57,264 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 03:55:57,265 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:55:56" (1/1) ... [2024-10-24 03:55:57,265 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:55:56" (1/1) ... [2024-10-24 03:55:57,487 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:55:56" (1/1) ... [2024-10-24 03:55:57,525 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:55:56" (1/1) ... [2024-10-24 03:55:57,574 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:55:56" (1/1) ... [2024-10-24 03:55:57,606 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:55:56" (1/1) ... [2024-10-24 03:55:57,718 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 03:55:57,719 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 03:55:57,720 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 03:55:57,720 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 03:55:57,721 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:55:56" (1/1) ... [2024-10-24 03:55:57,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 03:55:57,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 03:55:57,747 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 03:55:57,749 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 03:55:57,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 03:55:57,787 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 03:55:57,787 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 03:55:57,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 03:55:57,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 03:55:57,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 03:55:58,366 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 03:55:58,368 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 03:56:14,935 INFO L? ?]: Removed 5798 outVars from TransFormulas that were not future-live. [2024-10-24 03:56:14,936 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 03:56:15,104 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 03:56:15,105 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 03:56:15,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:56:15 BoogieIcfgContainer [2024-10-24 03:56:15,106 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 03:56:15,108 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 03:56:15,108 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 03:56:15,111 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 03:56:15,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:55:55" (1/3) ... [2024-10-24 03:56:15,112 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef4971e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:56:15, skipping insertion in model container [2024-10-24 03:56:15,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:55:56" (2/3) ... [2024-10-24 03:56:15,113 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef4971e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:56:15, skipping insertion in model container [2024-10-24 03:56:15,113 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:56:15" (3/3) ... [2024-10-24 03:56:15,114 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w64_d128_e0.c [2024-10-24 03:56:15,127 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 03:56:15,127 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 03:56:15,226 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 03:56:15,231 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;@45c19a5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 03:56:15,231 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 03:56:15,242 INFO L276 IsEmpty]: Start isEmpty. Operand has 2789 states, 2783 states have (on average 1.4994610132950055) internal successors, (4173), 2784 states have internal predecessors, (4173), 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 03:56:15,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2024-10-24 03:56:15,269 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:15,270 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:15,271 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:15,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:15,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1731528871, now seen corresponding path program 1 times [2024-10-24 03:56:15,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:15,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122235724] [2024-10-24 03:56:15,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:15,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:15,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:16,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 03:56:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:16,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-24 03:56:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:16,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-24 03:56:16,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:16,094 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 03:56:16,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:16,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122235724] [2024-10-24 03:56:16,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122235724] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:16,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:16,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 03:56:16,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188492680] [2024-10-24 03:56:16,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:16,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 03:56:16,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:16,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 03:56:16,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 03:56:16,130 INFO L87 Difference]: Start difference. First operand has 2789 states, 2783 states have (on average 1.4994610132950055) internal successors, (4173), 2784 states have internal predecessors, (4173), 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 292.0) internal successors, (584), 2 states have internal predecessors, (584), 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 03:56:16,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:16,240 INFO L93 Difference]: Finished difference Result 5028 states and 7538 transitions. [2024-10-24 03:56:16,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 03:56:16,243 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 292.0) internal successors, (584), 2 states have internal predecessors, (584), 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 596 [2024-10-24 03:56:16,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:16,266 INFO L225 Difference]: With dead ends: 5028 [2024-10-24 03:56:16,267 INFO L226 Difference]: Without dead ends: 2788 [2024-10-24 03:56:16,275 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 03:56:16,278 INFO L432 NwaCegarLoop]: 4175 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, 4175 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 03:56:16,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4175 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:56:16,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2788 states. [2024-10-24 03:56:16,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2788 to 2788. [2024-10-24 03:56:16,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2788 states, 2783 states have (on average 1.4983830398850162) internal successors, (4170), 2783 states have internal predecessors, (4170), 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 03:56:16,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2788 states to 2788 states and 4176 transitions. [2024-10-24 03:56:16,387 INFO L78 Accepts]: Start accepts. Automaton has 2788 states and 4176 transitions. Word has length 596 [2024-10-24 03:56:16,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:16,390 INFO L471 AbstractCegarLoop]: Abstraction has 2788 states and 4176 transitions. [2024-10-24 03:56:16,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 292.0) internal successors, (584), 2 states have internal predecessors, (584), 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 03:56:16,391 INFO L276 IsEmpty]: Start isEmpty. Operand 2788 states and 4176 transitions. [2024-10-24 03:56:16,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2024-10-24 03:56:16,399 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:16,400 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:16,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 03:56:16,400 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:16,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:16,401 INFO L85 PathProgramCache]: Analyzing trace with hash -882233375, now seen corresponding path program 1 times [2024-10-24 03:56:16,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:16,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068521656] [2024-10-24 03:56:16,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:16,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:16,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:19,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 03:56:19,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:19,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-24 03:56:19,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:19,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-24 03:56:19,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:19,088 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 03:56:19,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:19,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068521656] [2024-10-24 03:56:19,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068521656] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:19,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:19,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:56:19,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641387649] [2024-10-24 03:56:19,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:19,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:56:19,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:19,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:56:19,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:56:19,096 INFO L87 Difference]: Start difference. First operand 2788 states and 4176 transitions. Second operand has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 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 03:56:19,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:19,179 INFO L93 Difference]: Finished difference Result 2792 states and 4180 transitions. [2024-10-24 03:56:19,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:19,180 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 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 596 [2024-10-24 03:56:19,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:19,188 INFO L225 Difference]: With dead ends: 2792 [2024-10-24 03:56:19,188 INFO L226 Difference]: Without dead ends: 2790 [2024-10-24 03:56:19,190 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 03:56:19,191 INFO L432 NwaCegarLoop]: 4173 mSDtfsCounter, 0 mSDsluCounter, 8341 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12514 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 03:56:19,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12514 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:56:19,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2790 states. [2024-10-24 03:56:19,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2790 to 2790. [2024-10-24 03:56:19,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2790 states, 2785 states have (on average 1.4980251346499103) internal successors, (4172), 2785 states have internal predecessors, (4172), 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 03:56:19,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2790 states to 2790 states and 4178 transitions. [2024-10-24 03:56:19,231 INFO L78 Accepts]: Start accepts. Automaton has 2790 states and 4178 transitions. Word has length 596 [2024-10-24 03:56:19,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:19,233 INFO L471 AbstractCegarLoop]: Abstraction has 2790 states and 4178 transitions. [2024-10-24 03:56:19,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 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 03:56:19,234 INFO L276 IsEmpty]: Start isEmpty. Operand 2790 states and 4178 transitions. [2024-10-24 03:56:19,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 598 [2024-10-24 03:56:19,240 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:19,240 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:19,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 03:56:19,241 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:19,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:19,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1577731959, now seen corresponding path program 1 times [2024-10-24 03:56:19,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:19,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502752795] [2024-10-24 03:56:19,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:19,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:19,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:20,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 03:56:20,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:20,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-24 03:56:20,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:20,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-24 03:56:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:20,751 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 03:56:20,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:20,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502752795] [2024-10-24 03:56:20,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502752795] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:20,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:20,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:20,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659972062] [2024-10-24 03:56:20,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:20,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:20,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:20,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:20,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:20,758 INFO L87 Difference]: Start difference. First operand 2790 states and 4178 transitions. Second operand has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 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 03:56:21,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:21,969 INFO L93 Difference]: Finished difference Result 6970 states and 10440 transitions. [2024-10-24 03:56:21,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 03:56:21,970 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 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 597 [2024-10-24 03:56:21,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:21,979 INFO L225 Difference]: With dead ends: 6970 [2024-10-24 03:56:21,979 INFO L226 Difference]: Without dead ends: 2790 [2024-10-24 03:56:21,984 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 03:56:21,985 INFO L432 NwaCegarLoop]: 4107 mSDtfsCounter, 9010 mSDsluCounter, 7535 mSDsCounter, 0 mSdLazyCounter, 1087 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9010 SdHoareTripleChecker+Valid, 11642 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 1087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:21,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9010 Valid, 11642 Invalid, 1236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 1087 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 03:56:21,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2790 states. [2024-10-24 03:56:22,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2790 to 2790. [2024-10-24 03:56:22,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2790 states, 2785 states have (on average 1.4976660682226213) internal successors, (4171), 2785 states have internal predecessors, (4171), 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 03:56:22,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2790 states to 2790 states and 4177 transitions. [2024-10-24 03:56:22,030 INFO L78 Accepts]: Start accepts. Automaton has 2790 states and 4177 transitions. Word has length 597 [2024-10-24 03:56:22,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:22,030 INFO L471 AbstractCegarLoop]: Abstraction has 2790 states and 4177 transitions. [2024-10-24 03:56:22,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 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 03:56:22,031 INFO L276 IsEmpty]: Start isEmpty. Operand 2790 states and 4177 transitions. [2024-10-24 03:56:22,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2024-10-24 03:56:22,037 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:22,037 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:22,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 03:56:22,038 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:22,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:22,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1494888659, now seen corresponding path program 1 times [2024-10-24 03:56:22,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:22,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101759267] [2024-10-24 03:56:22,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:22,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:23,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 03:56:23,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:23,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-24 03:56:23,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:23,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-24 03:56:23,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:23,367 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 03:56:23,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:23,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101759267] [2024-10-24 03:56:23,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101759267] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:23,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:23,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:56:23,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715387604] [2024-10-24 03:56:23,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:23,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:56:23,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:23,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:56:23,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:56:23,375 INFO L87 Difference]: Start difference. First operand 2790 states and 4177 transitions. Second operand has 4 states, 4 states have (on average 146.5) internal successors, (586), 4 states have internal predecessors, (586), 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 03:56:23,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:23,449 INFO L93 Difference]: Finished difference Result 5033 states and 7534 transitions. [2024-10-24 03:56:23,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:23,450 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 146.5) internal successors, (586), 4 states have internal predecessors, (586), 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 598 [2024-10-24 03:56:23,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:23,457 INFO L225 Difference]: With dead ends: 5033 [2024-10-24 03:56:23,458 INFO L226 Difference]: Without dead ends: 2792 [2024-10-24 03:56:23,462 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 03:56:23,463 INFO L432 NwaCegarLoop]: 4172 mSDtfsCounter, 0 mSDsluCounter, 8336 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12508 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 03:56:23,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12508 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 03:56:23,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-24 03:56:23,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-24 03:56:23,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.497308934337998) internal successors, (4173), 2787 states have internal predecessors, (4173), 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 03:56:23,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4179 transitions. [2024-10-24 03:56:23,515 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4179 transitions. Word has length 598 [2024-10-24 03:56:23,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:23,517 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4179 transitions. [2024-10-24 03:56:23,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 146.5) internal successors, (586), 4 states have internal predecessors, (586), 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 03:56:23,518 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4179 transitions. [2024-10-24 03:56:23,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 600 [2024-10-24 03:56:23,522 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:23,523 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:23,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 03:56:23,524 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:23,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:23,524 INFO L85 PathProgramCache]: Analyzing trace with hash -2001054032, now seen corresponding path program 1 times [2024-10-24 03:56:23,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:23,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563127258] [2024-10-24 03:56:23,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:23,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:23,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:25,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 03:56:25,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:25,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-24 03:56:25,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:25,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-24 03:56:25,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:25,278 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 03:56:25,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:25,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563127258] [2024-10-24 03:56:25,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563127258] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:25,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:25,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 03:56:25,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990587747] [2024-10-24 03:56:25,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:25,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 03:56:25,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:25,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 03:56:25,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 03:56:25,282 INFO L87 Difference]: Start difference. First operand 2792 states and 4179 transitions. Second operand has 4 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 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 03:56:26,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:26,187 INFO L93 Difference]: Finished difference Result 5035 states and 7535 transitions. [2024-10-24 03:56:26,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:26,188 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 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 599 [2024-10-24 03:56:26,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:26,196 INFO L225 Difference]: With dead ends: 5035 [2024-10-24 03:56:26,196 INFO L226 Difference]: Without dead ends: 2792 [2024-10-24 03:56:26,199 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 03:56:26,200 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 3636 mSDsluCounter, 3534 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3636 SdHoareTripleChecker+Valid, 7066 SdHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:26,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3636 Valid, 7066 Invalid, 1285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1285 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 03:56:26,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-24 03:56:26,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-24 03:56:26,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.4969501255830642) internal successors, (4172), 2787 states have internal predecessors, (4172), 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 03:56:26,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4178 transitions. [2024-10-24 03:56:26,240 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4178 transitions. Word has length 599 [2024-10-24 03:56:26,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:26,241 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4178 transitions. [2024-10-24 03:56:26,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 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 03:56:26,242 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4178 transitions. [2024-10-24 03:56:26,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 601 [2024-10-24 03:56:26,245 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:26,247 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:26,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 03:56:26,247 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:26,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:26,248 INFO L85 PathProgramCache]: Analyzing trace with hash -54157363, now seen corresponding path program 1 times [2024-10-24 03:56:26,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:26,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861191207] [2024-10-24 03:56:26,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:26,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:27,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 03:56:27,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:27,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-24 03:56:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:27,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-24 03:56:27,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:27,678 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 03:56:27,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:27,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861191207] [2024-10-24 03:56:27,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861191207] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:27,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:27,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:27,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698311477] [2024-10-24 03:56:27,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:27,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:27,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:27,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:27,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:27,682 INFO L87 Difference]: Start difference. First operand 2792 states and 4178 transitions. Second operand has 5 states, 5 states have (on average 117.6) internal successors, (588), 5 states have internal predecessors, (588), 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 03:56:28,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:28,492 INFO L93 Difference]: Finished difference Result 5123 states and 7664 transitions. [2024-10-24 03:56:28,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 03:56:28,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 117.6) internal successors, (588), 5 states have internal predecessors, (588), 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 600 [2024-10-24 03:56:28,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:28,502 INFO L225 Difference]: With dead ends: 5123 [2024-10-24 03:56:28,502 INFO L226 Difference]: Without dead ends: 2792 [2024-10-24 03:56:28,505 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 03:56:28,506 INFO L432 NwaCegarLoop]: 4123 mSDtfsCounter, 3811 mSDsluCounter, 7660 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3811 SdHoareTripleChecker+Valid, 11783 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:28,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3811 Valid, 11783 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 03:56:28,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-24 03:56:28,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-24 03:56:28,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.4965913168281306) internal successors, (4171), 2787 states have internal predecessors, (4171), 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 03:56:28,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4177 transitions. [2024-10-24 03:56:28,560 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4177 transitions. Word has length 600 [2024-10-24 03:56:28,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:28,561 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4177 transitions. [2024-10-24 03:56:28,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.6) internal successors, (588), 5 states have internal predecessors, (588), 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 03:56:28,565 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4177 transitions. [2024-10-24 03:56:28,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2024-10-24 03:56:28,572 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:28,572 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:28,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 03:56:28,573 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:28,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:28,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1219942628, now seen corresponding path program 1 times [2024-10-24 03:56:28,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:28,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120967820] [2024-10-24 03:56:28,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:28,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:29,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:29,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 03:56:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:29,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-24 03:56:29,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:29,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-24 03:56:29,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:29,797 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 03:56:29,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:29,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120967820] [2024-10-24 03:56:29,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120967820] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:29,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:29,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:29,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887563891] [2024-10-24 03:56:29,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:29,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:29,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:29,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:29,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:29,801 INFO L87 Difference]: Start difference. First operand 2792 states and 4177 transitions. Second operand has 5 states, 5 states have (on average 117.8) internal successors, (589), 5 states have internal predecessors, (589), 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 03:56:30,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:30,710 INFO L93 Difference]: Finished difference Result 5035 states and 7531 transitions. [2024-10-24 03:56:30,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:30,711 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 117.8) internal successors, (589), 5 states have internal predecessors, (589), 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 601 [2024-10-24 03:56:30,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:30,720 INFO L225 Difference]: With dead ends: 5035 [2024-10-24 03:56:30,720 INFO L226 Difference]: Without dead ends: 2792 [2024-10-24 03:56:30,723 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 03:56:30,723 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 4162 mSDsluCounter, 3540 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4165 SdHoareTripleChecker+Valid, 7072 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:30,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4165 Valid, 7072 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 03:56:30,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-24 03:56:30,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-24 03:56:30,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.496232508073197) internal successors, (4170), 2787 states have internal predecessors, (4170), 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 03:56:30,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4176 transitions. [2024-10-24 03:56:30,756 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4176 transitions. Word has length 601 [2024-10-24 03:56:30,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:30,757 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4176 transitions. [2024-10-24 03:56:30,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.8) internal successors, (589), 5 states have internal predecessors, (589), 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 03:56:30,757 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4176 transitions. [2024-10-24 03:56:30,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2024-10-24 03:56:30,761 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:30,761 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:30,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 03:56:30,762 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:30,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:30,762 INFO L85 PathProgramCache]: Analyzing trace with hash 150232980, now seen corresponding path program 1 times [2024-10-24 03:56:30,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:30,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122265228] [2024-10-24 03:56:30,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:30,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:31,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:31,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 03:56:31,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:31,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-24 03:56:31,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:31,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-24 03:56:31,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:31,826 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 03:56:31,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:31,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122265228] [2024-10-24 03:56:31,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122265228] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:31,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:31,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:31,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052544486] [2024-10-24 03:56:31,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:31,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:31,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:31,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:31,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:31,830 INFO L87 Difference]: Start difference. First operand 2792 states and 4176 transitions. Second operand has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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 03:56:32,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:32,667 INFO L93 Difference]: Finished difference Result 5035 states and 7529 transitions. [2024-10-24 03:56:32,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:32,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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 602 [2024-10-24 03:56:32,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:32,676 INFO L225 Difference]: With dead ends: 5035 [2024-10-24 03:56:32,676 INFO L226 Difference]: Without dead ends: 2792 [2024-10-24 03:56:32,681 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 03:56:32,681 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 7871 mSDsluCounter, 3534 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7874 SdHoareTripleChecker+Valid, 7066 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:32,681 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7874 Valid, 7066 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 03:56:32,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-24 03:56:32,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-24 03:56:32,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.4958736993182633) internal successors, (4169), 2787 states have internal predecessors, (4169), 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 03:56:32,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4175 transitions. [2024-10-24 03:56:32,719 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4175 transitions. Word has length 602 [2024-10-24 03:56:32,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:32,720 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4175 transitions. [2024-10-24 03:56:32,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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 03:56:32,720 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4175 transitions. [2024-10-24 03:56:32,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 604 [2024-10-24 03:56:32,724 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:32,724 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:32,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 03:56:32,724 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:32,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:32,725 INFO L85 PathProgramCache]: Analyzing trace with hash 367548867, now seen corresponding path program 1 times [2024-10-24 03:56:32,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:32,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302040294] [2024-10-24 03:56:32,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:32,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:33,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 03:56:33,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:33,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-24 03:56:33,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:33,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-24 03:56:33,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:33,862 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 03:56:33,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:33,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302040294] [2024-10-24 03:56:33,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302040294] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:33,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:33,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:33,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589030185] [2024-10-24 03:56:33,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:33,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:33,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:33,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:33,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:33,866 INFO L87 Difference]: Start difference. First operand 2792 states and 4175 transitions. Second operand has 5 states, 5 states have (on average 118.2) internal successors, (591), 5 states have internal predecessors, (591), 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 03:56:34,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:34,613 INFO L93 Difference]: Finished difference Result 5035 states and 7527 transitions. [2024-10-24 03:56:34,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:34,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 118.2) internal successors, (591), 5 states have internal predecessors, (591), 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 603 [2024-10-24 03:56:34,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:34,621 INFO L225 Difference]: With dead ends: 5035 [2024-10-24 03:56:34,621 INFO L226 Difference]: Without dead ends: 2792 [2024-10-24 03:56:34,623 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 03:56:34,624 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 4154 mSDsluCounter, 3540 mSDsCounter, 0 mSdLazyCounter, 1277 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4157 SdHoareTripleChecker+Valid, 7072 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:34,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4157 Valid, 7072 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1277 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 03:56:34,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-24 03:56:34,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-24 03:56:34,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.4955148905633298) internal successors, (4168), 2787 states have internal predecessors, (4168), 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 03:56:34,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4174 transitions. [2024-10-24 03:56:34,654 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4174 transitions. Word has length 603 [2024-10-24 03:56:34,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:34,655 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4174 transitions. [2024-10-24 03:56:34,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.2) internal successors, (591), 5 states have internal predecessors, (591), 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 03:56:34,655 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4174 transitions. [2024-10-24 03:56:34,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 605 [2024-10-24 03:56:34,658 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:34,658 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:34,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 03:56:34,659 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:34,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:34,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1071548123, now seen corresponding path program 1 times [2024-10-24 03:56:34,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:34,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296861826] [2024-10-24 03:56:34,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:34,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:35,065 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 282 [2024-10-24 03:56:35,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:35,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-24 03:56:35,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:35,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-24 03:56:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:35,830 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 03:56:35,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:35,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296861826] [2024-10-24 03:56:35,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296861826] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:35,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:35,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:35,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687036638] [2024-10-24 03:56:35,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:35,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:35,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:35,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:35,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:35,833 INFO L87 Difference]: Start difference. First operand 2792 states and 4174 transitions. Second operand has 5 states, 5 states have (on average 118.4) internal successors, (592), 5 states have internal predecessors, (592), 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 03:56:36,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:36,541 INFO L93 Difference]: Finished difference Result 5035 states and 7525 transitions. [2024-10-24 03:56:36,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:36,542 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 118.4) internal successors, (592), 5 states have internal predecessors, (592), 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 604 [2024-10-24 03:56:36,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:36,547 INFO L225 Difference]: With dead ends: 5035 [2024-10-24 03:56:36,547 INFO L226 Difference]: Without dead ends: 2792 [2024-10-24 03:56:36,549 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 03:56:36,550 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 4150 mSDsluCounter, 3540 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4153 SdHoareTripleChecker+Valid, 7072 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:36,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4153 Valid, 7072 Invalid, 1276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 03:56:36,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-24 03:56:36,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-24 03:56:36,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.4951560818083962) internal successors, (4167), 2787 states have internal predecessors, (4167), 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 03:56:36,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4173 transitions. [2024-10-24 03:56:36,583 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4173 transitions. Word has length 604 [2024-10-24 03:56:36,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:36,584 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4173 transitions. [2024-10-24 03:56:36,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.4) internal successors, (592), 5 states have internal predecessors, (592), 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 03:56:36,584 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4173 transitions. [2024-10-24 03:56:36,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2024-10-24 03:56:36,588 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:36,588 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:36,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 03:56:36,589 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:36,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:36,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1365249002, now seen corresponding path program 1 times [2024-10-24 03:56:36,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:36,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286039338] [2024-10-24 03:56:36,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:36,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:36,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:37,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 03:56:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:37,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-24 03:56:37,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:37,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-24 03:56:37,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:37,550 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 03:56:37,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:37,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286039338] [2024-10-24 03:56:37,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286039338] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:37,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:37,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:37,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325707083] [2024-10-24 03:56:37,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:37,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:37,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:37,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:37,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:37,552 INFO L87 Difference]: Start difference. First operand 2792 states and 4173 transitions. Second operand has 5 states, 5 states have (on average 118.6) internal successors, (593), 5 states have internal predecessors, (593), 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 03:56:38,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:38,351 INFO L93 Difference]: Finished difference Result 5035 states and 7523 transitions. [2024-10-24 03:56:38,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:38,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 118.6) internal successors, (593), 5 states have internal predecessors, (593), 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 605 [2024-10-24 03:56:38,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:38,361 INFO L225 Difference]: With dead ends: 5035 [2024-10-24 03:56:38,361 INFO L226 Difference]: Without dead ends: 2792 [2024-10-24 03:56:38,364 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 03:56:38,365 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 7847 mSDsluCounter, 3534 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7850 SdHoareTripleChecker+Valid, 7066 SdHoareTripleChecker+Invalid, 1274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:38,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7850 Valid, 7066 Invalid, 1274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 03:56:38,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-24 03:56:38,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-24 03:56:38,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.4947972730534624) internal successors, (4166), 2787 states have internal predecessors, (4166), 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 03:56:38,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4172 transitions. [2024-10-24 03:56:38,403 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4172 transitions. Word has length 605 [2024-10-24 03:56:38,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:38,404 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4172 transitions. [2024-10-24 03:56:38,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.6) internal successors, (593), 5 states have internal predecessors, (593), 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 03:56:38,405 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4172 transitions. [2024-10-24 03:56:38,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2024-10-24 03:56:38,408 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:38,408 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:38,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 03:56:38,408 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:38,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:38,410 INFO L85 PathProgramCache]: Analyzing trace with hash -528951902, now seen corresponding path program 1 times [2024-10-24 03:56:38,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:38,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7864541] [2024-10-24 03:56:38,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:38,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:38,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:39,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 03:56:39,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:39,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-24 03:56:39,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:39,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-24 03:56:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:39,430 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 03:56:39,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:39,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7864541] [2024-10-24 03:56:39,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7864541] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:39,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:39,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:39,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513134712] [2024-10-24 03:56:39,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:39,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:39,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:39,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:39,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:39,433 INFO L87 Difference]: Start difference. First operand 2792 states and 4172 transitions. Second operand has 5 states, 5 states have (on average 118.8) internal successors, (594), 5 states have internal predecessors, (594), 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 03:56:40,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:40,133 INFO L93 Difference]: Finished difference Result 5035 states and 7521 transitions. [2024-10-24 03:56:40,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:40,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 118.8) internal successors, (594), 5 states have internal predecessors, (594), 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 606 [2024-10-24 03:56:40,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:40,139 INFO L225 Difference]: With dead ends: 5035 [2024-10-24 03:56:40,139 INFO L226 Difference]: Without dead ends: 2792 [2024-10-24 03:56:40,142 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 03:56:40,142 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 7839 mSDsluCounter, 3534 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7842 SdHoareTripleChecker+Valid, 7066 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:40,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7842 Valid, 7066 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1271 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 03:56:40,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-24 03:56:40,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-24 03:56:40,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.494438464298529) internal successors, (4165), 2787 states have internal predecessors, (4165), 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 03:56:40,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4171 transitions. [2024-10-24 03:56:40,169 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4171 transitions. Word has length 606 [2024-10-24 03:56:40,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:40,170 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4171 transitions. [2024-10-24 03:56:40,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.8) internal successors, (594), 5 states have internal predecessors, (594), 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 03:56:40,170 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4171 transitions. [2024-10-24 03:56:40,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2024-10-24 03:56:40,173 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:40,174 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:40,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 03:56:40,174 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:40,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:40,175 INFO L85 PathProgramCache]: Analyzing trace with hash 694615441, now seen corresponding path program 1 times [2024-10-24 03:56:40,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:40,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036820268] [2024-10-24 03:56:40,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:40,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:41,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 03:56:41,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:41,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-24 03:56:41,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:41,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-24 03:56:41,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:41,092 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 03:56:41,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:41,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036820268] [2024-10-24 03:56:41,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036820268] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:41,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:41,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:41,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117968645] [2024-10-24 03:56:41,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:41,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:41,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:41,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:41,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:41,095 INFO L87 Difference]: Start difference. First operand 2792 states and 4171 transitions. Second operand has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 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 03:56:41,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:41,829 INFO L93 Difference]: Finished difference Result 5035 states and 7519 transitions. [2024-10-24 03:56:41,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:41,830 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 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 607 [2024-10-24 03:56:41,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:41,834 INFO L225 Difference]: With dead ends: 5035 [2024-10-24 03:56:41,834 INFO L226 Difference]: Without dead ends: 2792 [2024-10-24 03:56:41,837 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 03:56:41,837 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 7831 mSDsluCounter, 3534 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7834 SdHoareTripleChecker+Valid, 7066 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:41,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7834 Valid, 7066 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 03:56:41,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-24 03:56:41,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-24 03:56:41,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.4940796555435953) internal successors, (4164), 2787 states have internal predecessors, (4164), 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 03:56:41,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4170 transitions. [2024-10-24 03:56:41,864 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4170 transitions. Word has length 607 [2024-10-24 03:56:41,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:41,864 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4170 transitions. [2024-10-24 03:56:41,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 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 03:56:41,865 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4170 transitions. [2024-10-24 03:56:41,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 609 [2024-10-24 03:56:41,868 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:41,868 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:41,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 03:56:41,868 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:41,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:41,869 INFO L85 PathProgramCache]: Analyzing trace with hash 819465193, now seen corresponding path program 1 times [2024-10-24 03:56:41,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:41,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575065788] [2024-10-24 03:56:41,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:41,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:42,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:43,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 03:56:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:43,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-24 03:56:43,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:43,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-24 03:56:43,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:43,026 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 03:56:43,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:43,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575065788] [2024-10-24 03:56:43,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575065788] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:43,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:43,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:43,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756798151] [2024-10-24 03:56:43,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:43,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:43,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:43,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:43,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:43,029 INFO L87 Difference]: Start difference. First operand 2792 states and 4170 transitions. Second operand has 5 states, 5 states have (on average 119.2) internal successors, (596), 5 states have internal predecessors, (596), 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 03:56:43,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:43,771 INFO L93 Difference]: Finished difference Result 5035 states and 7517 transitions. [2024-10-24 03:56:43,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:43,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 119.2) internal successors, (596), 5 states have internal predecessors, (596), 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 608 [2024-10-24 03:56:43,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:43,776 INFO L225 Difference]: With dead ends: 5035 [2024-10-24 03:56:43,776 INFO L226 Difference]: Without dead ends: 2792 [2024-10-24 03:56:43,779 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 03:56:43,779 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 4134 mSDsluCounter, 3540 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4137 SdHoareTripleChecker+Valid, 7072 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:43,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4137 Valid, 7072 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 03:56:43,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-24 03:56:43,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-24 03:56:43,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.4937208467886616) internal successors, (4163), 2787 states have internal predecessors, (4163), 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 03:56:43,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4169 transitions. [2024-10-24 03:56:43,816 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4169 transitions. Word has length 608 [2024-10-24 03:56:43,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:43,816 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4169 transitions. [2024-10-24 03:56:43,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.2) internal successors, (596), 5 states have internal predecessors, (596), 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 03:56:43,817 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4169 transitions. [2024-10-24 03:56:43,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2024-10-24 03:56:43,822 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:43,822 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:43,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 03:56:43,823 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:43,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:43,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1347677880, now seen corresponding path program 1 times [2024-10-24 03:56:43,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:43,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768530051] [2024-10-24 03:56:43,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:43,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:44,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 03:56:44,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:44,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-24 03:56:44,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:44,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-24 03:56:44,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:44,746 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 03:56:44,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:44,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768530051] [2024-10-24 03:56:44,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768530051] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:44,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:44,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:44,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925817706] [2024-10-24 03:56:44,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:44,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:44,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:44,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:44,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:44,748 INFO L87 Difference]: Start difference. First operand 2792 states and 4169 transitions. Second operand has 5 states, 5 states have (on average 119.4) internal successors, (597), 5 states have internal predecessors, (597), 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 03:56:45,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:45,401 INFO L93 Difference]: Finished difference Result 5035 states and 7515 transitions. [2024-10-24 03:56:45,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:45,401 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 119.4) internal successors, (597), 5 states have internal predecessors, (597), 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 609 [2024-10-24 03:56:45,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:45,405 INFO L225 Difference]: With dead ends: 5035 [2024-10-24 03:56:45,405 INFO L226 Difference]: Without dead ends: 2792 [2024-10-24 03:56:45,407 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 03:56:45,408 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 7815 mSDsluCounter, 3534 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7818 SdHoareTripleChecker+Valid, 7066 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:45,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7818 Valid, 7066 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 03:56:45,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-24 03:56:45,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-24 03:56:45,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.493362038033728) internal successors, (4162), 2787 states have internal predecessors, (4162), 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 03:56:45,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4168 transitions. [2024-10-24 03:56:45,431 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4168 transitions. Word has length 609 [2024-10-24 03:56:45,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:45,432 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4168 transitions. [2024-10-24 03:56:45,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.4) internal successors, (597), 5 states have internal predecessors, (597), 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 03:56:45,432 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4168 transitions. [2024-10-24 03:56:45,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 611 [2024-10-24 03:56:45,435 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:45,436 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:45,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 03:56:45,436 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:45,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:45,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1580263856, now seen corresponding path program 1 times [2024-10-24 03:56:45,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:45,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239109957] [2024-10-24 03:56:45,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:45,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:46,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 03:56:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:46,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-24 03:56:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:46,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-24 03:56:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:46,321 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 03:56:46,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:46,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239109957] [2024-10-24 03:56:46,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239109957] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:46,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:46,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:46,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636152345] [2024-10-24 03:56:46,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:46,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:46,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:46,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:46,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:46,323 INFO L87 Difference]: Start difference. First operand 2792 states and 4168 transitions. Second operand has 5 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 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 03:56:47,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:47,044 INFO L93 Difference]: Finished difference Result 5035 states and 7513 transitions. [2024-10-24 03:56:47,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:47,045 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 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 610 [2024-10-24 03:56:47,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:47,048 INFO L225 Difference]: With dead ends: 5035 [2024-10-24 03:56:47,048 INFO L226 Difference]: Without dead ends: 2792 [2024-10-24 03:56:47,049 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 03:56:47,050 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 7807 mSDsluCounter, 3534 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7810 SdHoareTripleChecker+Valid, 7066 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:47,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7810 Valid, 7066 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 03:56:47,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-24 03:56:47,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-24 03:56:47,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.4930032292787945) internal successors, (4161), 2787 states have internal predecessors, (4161), 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 03:56:47,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4167 transitions. [2024-10-24 03:56:47,072 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4167 transitions. Word has length 610 [2024-10-24 03:56:47,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:47,072 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4167 transitions. [2024-10-24 03:56:47,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 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 03:56:47,072 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4167 transitions. [2024-10-24 03:56:47,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 612 [2024-10-24 03:56:47,076 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:47,076 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:47,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 03:56:47,076 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:47,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:47,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1797103455, now seen corresponding path program 1 times [2024-10-24 03:56:47,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:47,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240904559] [2024-10-24 03:56:47,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:47,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:47,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:47,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 03:56:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:47,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-24 03:56:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:47,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-24 03:56:47,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:47,989 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 03:56:47,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:47,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240904559] [2024-10-24 03:56:47,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240904559] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:47,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:47,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:47,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580465424] [2024-10-24 03:56:47,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:47,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:47,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:47,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:47,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:47,991 INFO L87 Difference]: Start difference. First operand 2792 states and 4167 transitions. Second operand has 5 states, 5 states have (on average 119.8) internal successors, (599), 5 states have internal predecessors, (599), 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 03:56:48,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:48,638 INFO L93 Difference]: Finished difference Result 5035 states and 7511 transitions. [2024-10-24 03:56:48,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:48,638 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 119.8) internal successors, (599), 5 states have internal predecessors, (599), 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 611 [2024-10-24 03:56:48,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:48,642 INFO L225 Difference]: With dead ends: 5035 [2024-10-24 03:56:48,642 INFO L226 Difference]: Without dead ends: 2792 [2024-10-24 03:56:48,644 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 03:56:48,644 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 4122 mSDsluCounter, 3540 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4125 SdHoareTripleChecker+Valid, 7072 SdHoareTripleChecker+Invalid, 1262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:48,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4125 Valid, 7072 Invalid, 1262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 03:56:48,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-24 03:56:48,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-24 03:56:48,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.4926444205238607) internal successors, (4160), 2787 states have internal predecessors, (4160), 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 03:56:48,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4166 transitions. [2024-10-24 03:56:48,670 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4166 transitions. Word has length 611 [2024-10-24 03:56:48,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:48,670 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4166 transitions. [2024-10-24 03:56:48,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.8) internal successors, (599), 5 states have internal predecessors, (599), 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 03:56:48,671 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4166 transitions. [2024-10-24 03:56:48,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2024-10-24 03:56:48,674 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:48,675 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:48,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 03:56:48,675 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:48,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:48,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1557671671, now seen corresponding path program 1 times [2024-10-24 03:56:48,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:48,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018186978] [2024-10-24 03:56:48,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:48,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:49,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:49,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 03:56:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:49,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-24 03:56:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:49,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-24 03:56:49,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:49,600 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 03:56:49,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:49,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018186978] [2024-10-24 03:56:49,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018186978] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:49,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:49,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:49,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714753807] [2024-10-24 03:56:49,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:49,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:49,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:49,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:49,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:49,602 INFO L87 Difference]: Start difference. First operand 2792 states and 4166 transitions. Second operand has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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 03:56:50,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:50,268 INFO L93 Difference]: Finished difference Result 5035 states and 7509 transitions. [2024-10-24 03:56:50,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:50,269 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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 612 [2024-10-24 03:56:50,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:50,273 INFO L225 Difference]: With dead ends: 5035 [2024-10-24 03:56:50,273 INFO L226 Difference]: Without dead ends: 2792 [2024-10-24 03:56:50,275 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 03:56:50,275 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 4118 mSDsluCounter, 3540 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4121 SdHoareTripleChecker+Valid, 7072 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:50,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4121 Valid, 7072 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 03:56:50,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-24 03:56:50,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-24 03:56:50,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.4922856117689272) internal successors, (4159), 2787 states have internal predecessors, (4159), 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 03:56:50,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4165 transitions. [2024-10-24 03:56:50,300 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4165 transitions. Word has length 612 [2024-10-24 03:56:50,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:50,300 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4165 transitions. [2024-10-24 03:56:50,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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 03:56:50,301 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4165 transitions. [2024-10-24 03:56:50,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 614 [2024-10-24 03:56:50,304 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:50,304 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:50,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 03:56:50,304 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:50,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:50,305 INFO L85 PathProgramCache]: Analyzing trace with hash 291164038, now seen corresponding path program 1 times [2024-10-24 03:56:50,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:50,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645764732] [2024-10-24 03:56:50,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:50,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:51,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 03:56:51,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:51,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-24 03:56:51,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:51,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-24 03:56:51,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:51,306 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 03:56:51,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:51,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645764732] [2024-10-24 03:56:51,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645764732] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:51,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:51,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:51,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189307170] [2024-10-24 03:56:51,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:51,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:51,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:51,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:51,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:51,309 INFO L87 Difference]: Start difference. First operand 2792 states and 4165 transitions. Second operand has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 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 03:56:51,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:51,962 INFO L93 Difference]: Finished difference Result 5035 states and 7507 transitions. [2024-10-24 03:56:51,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:51,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 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 613 [2024-10-24 03:56:51,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:51,966 INFO L225 Difference]: With dead ends: 5035 [2024-10-24 03:56:51,967 INFO L226 Difference]: Without dead ends: 2792 [2024-10-24 03:56:51,969 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 03:56:51,969 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 7783 mSDsluCounter, 3534 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7786 SdHoareTripleChecker+Valid, 7066 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:51,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7786 Valid, 7066 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 03:56:51,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-24 03:56:51,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-24 03:56:51,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.4919268030139936) internal successors, (4158), 2787 states have internal predecessors, (4158), 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 03:56:51,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4164 transitions. [2024-10-24 03:56:51,994 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4164 transitions. Word has length 613 [2024-10-24 03:56:51,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:51,994 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4164 transitions. [2024-10-24 03:56:51,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 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 03:56:51,994 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4164 transitions. [2024-10-24 03:56:51,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2024-10-24 03:56:51,997 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:51,998 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:51,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 03:56:51,998 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:51,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:51,999 INFO L85 PathProgramCache]: Analyzing trace with hash -935158850, now seen corresponding path program 1 times [2024-10-24 03:56:51,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:51,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300981209] [2024-10-24 03:56:51,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:51,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:52,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:52,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 03:56:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:52,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-24 03:56:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:52,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-24 03:56:52,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:52,896 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 03:56:52,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:52,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300981209] [2024-10-24 03:56:52,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300981209] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:52,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:52,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:52,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984310225] [2024-10-24 03:56:52,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:52,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:52,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:52,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:52,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:52,900 INFO L87 Difference]: Start difference. First operand 2792 states and 4164 transitions. Second operand has 5 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 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 03:56:53,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:53,549 INFO L93 Difference]: Finished difference Result 5035 states and 7505 transitions. [2024-10-24 03:56:53,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:53,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 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 614 [2024-10-24 03:56:53,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:53,553 INFO L225 Difference]: With dead ends: 5035 [2024-10-24 03:56:53,553 INFO L226 Difference]: Without dead ends: 2792 [2024-10-24 03:56:53,556 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 03:56:53,556 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 4110 mSDsluCounter, 3540 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4113 SdHoareTripleChecker+Valid, 7072 SdHoareTripleChecker+Invalid, 1256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:53,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4113 Valid, 7072 Invalid, 1256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 03:56:53,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-24 03:56:53,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-24 03:56:53,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.4915679942590598) internal successors, (4157), 2787 states have internal predecessors, (4157), 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 03:56:53,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4163 transitions. [2024-10-24 03:56:53,581 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4163 transitions. Word has length 614 [2024-10-24 03:56:53,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:53,581 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4163 transitions. [2024-10-24 03:56:53,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.4) internal successors, (602), 5 states have internal predecessors, (602), 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 03:56:53,582 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4163 transitions. [2024-10-24 03:56:53,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 616 [2024-10-24 03:56:53,584 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:53,585 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:53,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 03:56:53,585 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:53,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:53,586 INFO L85 PathProgramCache]: Analyzing trace with hash -851296467, now seen corresponding path program 1 times [2024-10-24 03:56:53,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:53,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811452049] [2024-10-24 03:56:53,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:53,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:53,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:54,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 03:56:54,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:54,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-24 03:56:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:54,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-24 03:56:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:54,500 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 03:56:54,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:54,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811452049] [2024-10-24 03:56:54,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811452049] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:54,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:54,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:54,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152839332] [2024-10-24 03:56:54,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:54,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:54,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:54,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:54,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:54,502 INFO L87 Difference]: Start difference. First operand 2792 states and 4163 transitions. Second operand has 5 states, 5 states have (on average 120.6) internal successors, (603), 5 states have internal predecessors, (603), 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 03:56:55,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:55,215 INFO L93 Difference]: Finished difference Result 5035 states and 7503 transitions. [2024-10-24 03:56:55,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:55,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 120.6) internal successors, (603), 5 states have internal predecessors, (603), 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 615 [2024-10-24 03:56:55,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:55,218 INFO L225 Difference]: With dead ends: 5035 [2024-10-24 03:56:55,218 INFO L226 Difference]: Without dead ends: 2792 [2024-10-24 03:56:55,219 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 03:56:55,220 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 4106 mSDsluCounter, 3540 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4109 SdHoareTripleChecker+Valid, 7072 SdHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:55,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4109 Valid, 7072 Invalid, 1254 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1253 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 03:56:55,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-24 03:56:55,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-24 03:56:55,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.4912091855041263) internal successors, (4156), 2787 states have internal predecessors, (4156), 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 03:56:55,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4162 transitions. [2024-10-24 03:56:55,240 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4162 transitions. Word has length 615 [2024-10-24 03:56:55,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:55,240 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4162 transitions. [2024-10-24 03:56:55,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.6) internal successors, (603), 5 states have internal predecessors, (603), 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 03:56:55,240 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4162 transitions. [2024-10-24 03:56:55,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2024-10-24 03:56:55,244 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:55,244 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:55,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 03:56:55,245 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:55,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:55,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1023086587, now seen corresponding path program 1 times [2024-10-24 03:56:55,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:55,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642807819] [2024-10-24 03:56:55,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:55,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:55,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:56,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 03:56:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:56,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-24 03:56:56,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:56,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-24 03:56:56,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:56,162 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 03:56:56,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:56,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642807819] [2024-10-24 03:56:56,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642807819] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:56,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:56,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:56,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780773017] [2024-10-24 03:56:56,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:56,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:56,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:56,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:56,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:56,164 INFO L87 Difference]: Start difference. First operand 2792 states and 4162 transitions. Second operand has 5 states, 5 states have (on average 120.8) internal successors, (604), 5 states have internal predecessors, (604), 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 03:56:56,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:56,799 INFO L93 Difference]: Finished difference Result 5035 states and 7501 transitions. [2024-10-24 03:56:56,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:56,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 120.8) internal successors, (604), 5 states have internal predecessors, (604), 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 616 [2024-10-24 03:56:56,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:56,803 INFO L225 Difference]: With dead ends: 5035 [2024-10-24 03:56:56,803 INFO L226 Difference]: Without dead ends: 2792 [2024-10-24 03:56:56,805 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 03:56:56,805 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 4102 mSDsluCounter, 3540 mSDsCounter, 0 mSdLazyCounter, 1251 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4105 SdHoareTripleChecker+Valid, 7072 SdHoareTripleChecker+Invalid, 1252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:56,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4105 Valid, 7072 Invalid, 1252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1251 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 03:56:56,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-24 03:56:56,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-24 03:56:56,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.4908503767491927) internal successors, (4155), 2787 states have internal predecessors, (4155), 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 03:56:56,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4161 transitions. [2024-10-24 03:56:56,828 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4161 transitions. Word has length 616 [2024-10-24 03:56:56,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:56,828 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4161 transitions. [2024-10-24 03:56:56,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.8) internal successors, (604), 5 states have internal predecessors, (604), 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 03:56:56,829 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4161 transitions. [2024-10-24 03:56:56,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 618 [2024-10-24 03:56:56,832 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:56,832 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:56,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 03:56:56,833 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:56,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:56,833 INFO L85 PathProgramCache]: Analyzing trace with hash 464170580, now seen corresponding path program 1 times [2024-10-24 03:56:56,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:56,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410208041] [2024-10-24 03:56:56,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:56,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:57,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:57,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 03:56:57,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:57,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-24 03:56:57,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:57,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-24 03:56:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:57,747 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 03:56:57,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:57,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410208041] [2024-10-24 03:56:57,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410208041] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:57,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:57,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:57,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871840567] [2024-10-24 03:56:57,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:57,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:57,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:57,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:57,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:57,749 INFO L87 Difference]: Start difference. First operand 2792 states and 4161 transitions. Second operand has 5 states, 5 states have (on average 121.0) internal successors, (605), 5 states have internal predecessors, (605), 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 03:56:58,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:56:58,393 INFO L93 Difference]: Finished difference Result 5035 states and 7499 transitions. [2024-10-24 03:56:58,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:56:58,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 121.0) internal successors, (605), 5 states have internal predecessors, (605), 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 617 [2024-10-24 03:56:58,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:56:58,397 INFO L225 Difference]: With dead ends: 5035 [2024-10-24 03:56:58,397 INFO L226 Difference]: Without dead ends: 2792 [2024-10-24 03:56:58,399 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 03:56:58,400 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 4098 mSDsluCounter, 3540 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4101 SdHoareTripleChecker+Valid, 7072 SdHoareTripleChecker+Invalid, 1250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:56:58,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4101 Valid, 7072 Invalid, 1250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1249 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 03:56:58,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-24 03:56:58,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-24 03:56:58,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.490491567994259) internal successors, (4154), 2787 states have internal predecessors, (4154), 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 03:56:58,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4160 transitions. [2024-10-24 03:56:58,426 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4160 transitions. Word has length 617 [2024-10-24 03:56:58,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:56:58,426 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4160 transitions. [2024-10-24 03:56:58,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 121.0) internal successors, (605), 5 states have internal predecessors, (605), 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 03:56:58,427 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4160 transitions. [2024-10-24 03:56:58,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 619 [2024-10-24 03:56:58,429 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:56:58,430 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:58,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-24 03:56:58,430 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:56:58,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:56:58,430 INFO L85 PathProgramCache]: Analyzing trace with hash -690754612, now seen corresponding path program 1 times [2024-10-24 03:56:58,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:56:58,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792165767] [2024-10-24 03:56:58,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:56:58,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:56:58,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:59,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 03:56:59,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:59,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-24 03:56:59,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:59,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-24 03:56:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:56:59,407 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 03:56:59,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:56:59,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792165767] [2024-10-24 03:56:59,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792165767] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:56:59,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:56:59,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:56:59,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155777616] [2024-10-24 03:56:59,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:56:59,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:56:59,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:56:59,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:56:59,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:56:59,409 INFO L87 Difference]: Start difference. First operand 2792 states and 4160 transitions. Second operand has 5 states, 5 states have (on average 121.2) internal successors, (606), 5 states have internal predecessors, (606), 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 03:57:00,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:57:00,043 INFO L93 Difference]: Finished difference Result 5035 states and 7497 transitions. [2024-10-24 03:57:00,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:57:00,044 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 121.2) internal successors, (606), 5 states have internal predecessors, (606), 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 618 [2024-10-24 03:57:00,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:57:00,046 INFO L225 Difference]: With dead ends: 5035 [2024-10-24 03:57:00,046 INFO L226 Difference]: Without dead ends: 2792 [2024-10-24 03:57:00,048 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 03:57:00,049 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 4094 mSDsluCounter, 3540 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4097 SdHoareTripleChecker+Valid, 7072 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:57:00,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4097 Valid, 7072 Invalid, 1248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 03:57:00,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-24 03:57:00,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-24 03:57:00,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.4901327592393254) internal successors, (4153), 2787 states have internal predecessors, (4153), 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 03:57:00,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4159 transitions. [2024-10-24 03:57:00,068 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4159 transitions. Word has length 618 [2024-10-24 03:57:00,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:57:00,069 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4159 transitions. [2024-10-24 03:57:00,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 121.2) internal successors, (606), 5 states have internal predecessors, (606), 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 03:57:00,069 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4159 transitions. [2024-10-24 03:57:00,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2024-10-24 03:57:00,071 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:57:00,072 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:00,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 03:57:00,072 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:57:00,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:57:00,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1812651259, now seen corresponding path program 1 times [2024-10-24 03:57:00,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:57:00,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490582668] [2024-10-24 03:57:00,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:57:00,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:57:00,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:00,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 03:57:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:00,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-24 03:57:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:00,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-24 03:57:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:00,974 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 03:57:00,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:57:00,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490582668] [2024-10-24 03:57:00,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490582668] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:57:00,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:57:00,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:57:00,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692194471] [2024-10-24 03:57:00,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:57:00,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:57:00,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:57:00,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:57:00,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:57:00,976 INFO L87 Difference]: Start difference. First operand 2792 states and 4159 transitions. Second operand has 5 states, 5 states have (on average 121.4) internal successors, (607), 5 states have internal predecessors, (607), 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 03:57:01,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:57:01,615 INFO L93 Difference]: Finished difference Result 5035 states and 7495 transitions. [2024-10-24 03:57:01,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:57:01,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 121.4) internal successors, (607), 5 states have internal predecessors, (607), 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 619 [2024-10-24 03:57:01,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:57:01,619 INFO L225 Difference]: With dead ends: 5035 [2024-10-24 03:57:01,619 INFO L226 Difference]: Without dead ends: 2792 [2024-10-24 03:57:01,621 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 03:57:01,621 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 4090 mSDsluCounter, 3540 mSDsCounter, 0 mSdLazyCounter, 1245 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4093 SdHoareTripleChecker+Valid, 7072 SdHoareTripleChecker+Invalid, 1246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:57:01,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4093 Valid, 7072 Invalid, 1246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1245 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 03:57:01,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-24 03:57:01,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-24 03:57:01,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.4897739504843919) internal successors, (4152), 2787 states have internal predecessors, (4152), 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 03:57:01,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4158 transitions. [2024-10-24 03:57:01,644 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4158 transitions. Word has length 619 [2024-10-24 03:57:01,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:57:01,645 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4158 transitions. [2024-10-24 03:57:01,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 121.4) internal successors, (607), 5 states have internal predecessors, (607), 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 03:57:01,645 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4158 transitions. [2024-10-24 03:57:01,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 621 [2024-10-24 03:57:01,648 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:57:01,648 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:01,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-24 03:57:01,649 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:57:01,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:57:01,649 INFO L85 PathProgramCache]: Analyzing trace with hash -729526509, now seen corresponding path program 1 times [2024-10-24 03:57:01,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:57:01,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996619666] [2024-10-24 03:57:01,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:57:01,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:57:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:02,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 03:57:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:02,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-24 03:57:02,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:02,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-24 03:57:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:02,558 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 03:57:02,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:57:02,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996619666] [2024-10-24 03:57:02,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996619666] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:57:02,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:57:02,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:57:02,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376709638] [2024-10-24 03:57:02,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:57:02,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:57:02,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:57:02,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:57:02,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:57:02,645 INFO L87 Difference]: Start difference. First operand 2792 states and 4158 transitions. Second operand has 5 states, 5 states have (on average 121.6) internal successors, (608), 5 states have internal predecessors, (608), 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 03:57:03,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:57:03,326 INFO L93 Difference]: Finished difference Result 5035 states and 7493 transitions. [2024-10-24 03:57:03,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:57:03,326 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 121.6) internal successors, (608), 5 states have internal predecessors, (608), 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 620 [2024-10-24 03:57:03,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:57:03,330 INFO L225 Difference]: With dead ends: 5035 [2024-10-24 03:57:03,330 INFO L226 Difference]: Without dead ends: 2792 [2024-10-24 03:57:03,332 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 03:57:03,333 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 7727 mSDsluCounter, 3534 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7730 SdHoareTripleChecker+Valid, 7066 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:57:03,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7730 Valid, 7066 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 03:57:03,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-24 03:57:03,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-24 03:57:03,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.489415141729458) internal successors, (4151), 2787 states have internal predecessors, (4151), 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 03:57:03,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4157 transitions. [2024-10-24 03:57:03,358 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4157 transitions. Word has length 620 [2024-10-24 03:57:03,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:57:03,358 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4157 transitions. [2024-10-24 03:57:03,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 121.6) internal successors, (608), 5 states have internal predecessors, (608), 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 03:57:03,359 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4157 transitions. [2024-10-24 03:57:03,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 622 [2024-10-24 03:57:03,362 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:57:03,362 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:03,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-24 03:57:03,362 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:57:03,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:57:03,363 INFO L85 PathProgramCache]: Analyzing trace with hash 544836386, now seen corresponding path program 1 times [2024-10-24 03:57:03,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:57:03,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290155636] [2024-10-24 03:57:03,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:57:03,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:57:03,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:04,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 03:57:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:04,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-24 03:57:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:04,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-24 03:57:04,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:04,421 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 03:57:04,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:57:04,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290155636] [2024-10-24 03:57:04,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290155636] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:57:04,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:57:04,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:57:04,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656093894] [2024-10-24 03:57:04,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:57:04,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:57:04,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:57:04,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:57:04,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:57:04,425 INFO L87 Difference]: Start difference. First operand 2792 states and 4157 transitions. Second operand has 5 states, 5 states have (on average 121.8) internal successors, (609), 5 states have internal predecessors, (609), 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 03:57:05,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:57:05,064 INFO L93 Difference]: Finished difference Result 5035 states and 7491 transitions. [2024-10-24 03:57:05,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:57:05,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 121.8) internal successors, (609), 5 states have internal predecessors, (609), 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 621 [2024-10-24 03:57:05,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:57:05,067 INFO L225 Difference]: With dead ends: 5035 [2024-10-24 03:57:05,067 INFO L226 Difference]: Without dead ends: 2792 [2024-10-24 03:57:05,069 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 03:57:05,069 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 7719 mSDsluCounter, 3534 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7722 SdHoareTripleChecker+Valid, 7066 SdHoareTripleChecker+Invalid, 1242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:57:05,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7722 Valid, 7066 Invalid, 1242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1241 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 03:57:05,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-24 03:57:05,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-24 03:57:05,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.4890563329745246) internal successors, (4150), 2787 states have internal predecessors, (4150), 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 03:57:05,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4156 transitions. [2024-10-24 03:57:05,091 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4156 transitions. Word has length 621 [2024-10-24 03:57:05,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:57:05,092 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4156 transitions. [2024-10-24 03:57:05,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 121.8) internal successors, (609), 5 states have internal predecessors, (609), 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 03:57:05,092 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4156 transitions. [2024-10-24 03:57:05,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2024-10-24 03:57:05,095 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:57:05,095 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:05,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-24 03:57:05,095 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:57:05,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:57:05,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1274357286, now seen corresponding path program 1 times [2024-10-24 03:57:05,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:57:05,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915394889] [2024-10-24 03:57:05,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:57:05,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:57:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:06,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 03:57:06,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:06,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-24 03:57:06,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:06,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-24 03:57:06,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:06,005 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 03:57:06,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:57:06,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915394889] [2024-10-24 03:57:06,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915394889] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:57:06,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:57:06,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:57:06,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799525839] [2024-10-24 03:57:06,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:57:06,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:57:06,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:57:06,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:57:06,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:57:06,008 INFO L87 Difference]: Start difference. First operand 2792 states and 4156 transitions. Second operand has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 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 03:57:06,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 03:57:06,655 INFO L93 Difference]: Finished difference Result 5035 states and 7489 transitions. [2024-10-24 03:57:06,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 03:57:06,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 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 622 [2024-10-24 03:57:06,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 03:57:06,658 INFO L225 Difference]: With dead ends: 5035 [2024-10-24 03:57:06,658 INFO L226 Difference]: Without dead ends: 2792 [2024-10-24 03:57:06,660 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 03:57:06,661 INFO L432 NwaCegarLoop]: 3532 mSDtfsCounter, 7711 mSDsluCounter, 3534 mSDsCounter, 0 mSdLazyCounter, 1239 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7714 SdHoareTripleChecker+Valid, 7066 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 03:57:06,661 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7714 Valid, 7066 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1239 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 03:57:06,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2024-10-24 03:57:06,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2792. [2024-10-24 03:57:06,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2787 states have (on average 1.488697524219591) internal successors, (4149), 2787 states have internal predecessors, (4149), 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 03:57:06,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4155 transitions. [2024-10-24 03:57:06,681 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4155 transitions. Word has length 622 [2024-10-24 03:57:06,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 03:57:06,682 INFO L471 AbstractCegarLoop]: Abstraction has 2792 states and 4155 transitions. [2024-10-24 03:57:06,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 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 03:57:06,682 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4155 transitions. [2024-10-24 03:57:06,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2024-10-24 03:57:06,684 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 03:57:06,685 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:06,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-24 03:57:06,685 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 03:57:06,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 03:57:06,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1918011191, now seen corresponding path program 1 times [2024-10-24 03:57:06,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 03:57:06,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751880127] [2024-10-24 03:57:06,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 03:57:06,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 03:57:07,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:07,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2024-10-24 03:57:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:07,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-24 03:57:07,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:07,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-24 03:57:07,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 03:57:07,649 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 03:57:07,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 03:57:07,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751880127] [2024-10-24 03:57:07,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751880127] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 03:57:07,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 03:57:07,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 03:57:07,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910555766] [2024-10-24 03:57:07,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 03:57:07,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 03:57:07,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 03:57:07,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 03:57:07,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 03:57:07,651 INFO L87 Difference]: Start difference. First operand 2792 states and 4155 transitions. Second operand has 5 states, 5 states have (on average 122.2) internal successors, (611), 5 states have internal predecessors, (611), 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)