./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 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/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-5.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ef6497bb448d9a320776973de65f322a5dd7ce0e422c6531ce8baf2751ae72d5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 13:57:11,005 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 13:57:11,088 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 13:57:11,096 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 13:57:11,096 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 13:57:11,122 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 13:57:11,123 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 13:57:11,123 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 13:57:11,124 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 13:57:11,124 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 13:57:11,124 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 13:57:11,125 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 13:57:11,125 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 13:57:11,126 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 13:57:11,126 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 13:57:11,126 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 13:57:11,127 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 13:57:11,128 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 13:57:11,129 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 13:57:11,129 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 13:57:11,129 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 13:57:11,133 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 13:57:11,134 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 13:57:11,134 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 13:57:11,134 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 13:57:11,134 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 13:57:11,135 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 13:57:11,135 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 13:57:11,135 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 13:57:11,135 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 13:57:11,136 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 13:57:11,136 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 13:57:11,136 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 13:57:11,137 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 13:57:11,137 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 13:57:11,141 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 13:57:11,141 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 13:57:11,142 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 13:57:11,142 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 13:57:11,142 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 13:57:11,142 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 13:57:11,143 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 13:57:11,144 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef6497bb448d9a320776973de65f322a5dd7ce0e422c6531ce8baf2751ae72d5 [2024-10-14 13:57:11,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 13:57:11,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 13:57:11,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 13:57:11,406 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 13:57:11,406 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 13:57:11,407 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-5.i [2024-10-14 13:57:12,817 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 13:57:13,028 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 13:57:13,029 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-5.i [2024-10-14 13:57:13,037 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88c621857/7d5656c1be204282befef74d535db2a4/FLAGa8a1ee45c [2024-10-14 13:57:13,052 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88c621857/7d5656c1be204282befef74d535db2a4 [2024-10-14 13:57:13,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 13:57:13,057 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 13:57:13,058 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 13:57:13,058 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 13:57:13,065 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 13:57:13,065 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:57:13" (1/1) ... [2024-10-14 13:57:13,066 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a65f75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:57:13, skipping insertion in model container [2024-10-14 13:57:13,066 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:57:13" (1/1) ... [2024-10-14 13:57:13,091 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 13:57:13,238 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/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-5.i[915,928] [2024-10-14 13:57:13,328 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 13:57:13,351 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 13:57:13,365 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/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-5.i[915,928] [2024-10-14 13:57:13,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 13:57:13,447 INFO L204 MainTranslator]: Completed translation [2024-10-14 13:57:13,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:57:13 WrapperNode [2024-10-14 13:57:13,448 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 13:57:13,449 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 13:57:13,450 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 13:57:13,451 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 13:57:13,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:57:13" (1/1) ... [2024-10-14 13:57:13,474 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:57:13" (1/1) ... [2024-10-14 13:57:13,512 INFO L138 Inliner]: procedures = 26, calls = 154, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 410 [2024-10-14 13:57:13,512 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 13:57:13,513 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 13:57:13,513 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 13:57:13,513 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 13:57:13,527 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:57:13" (1/1) ... [2024-10-14 13:57:13,527 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:57:13" (1/1) ... [2024-10-14 13:57:13,534 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:57:13" (1/1) ... [2024-10-14 13:57:13,564 INFO L175 MemorySlicer]: Split 122 memory accesses to 2 slices as follows [2, 120]. 98 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 15]. The 17 writes are split as follows [0, 17]. [2024-10-14 13:57:13,565 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:57:13" (1/1) ... [2024-10-14 13:57:13,565 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:57:13" (1/1) ... [2024-10-14 13:57:13,585 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:57:13" (1/1) ... [2024-10-14 13:57:13,594 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:57:13" (1/1) ... [2024-10-14 13:57:13,600 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:57:13" (1/1) ... [2024-10-14 13:57:13,607 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:57:13" (1/1) ... [2024-10-14 13:57:13,619 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 13:57:13,620 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 13:57:13,620 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 13:57:13,621 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 13:57:13,621 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:57:13" (1/1) ... [2024-10-14 13:57:13,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 13:57:13,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 13:57:13,655 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) [2024-10-14 13:57:13,660 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 [2024-10-14 13:57:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 13:57:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-14 13:57:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-14 13:57:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-14 13:57:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-14 13:57:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 13:57:13,698 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 13:57:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 13:57:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 13:57:13,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 13:57:13,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 13:57:13,793 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 13:57:13,795 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 13:57:14,290 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-10-14 13:57:14,291 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 13:57:14,332 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 13:57:14,332 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 13:57:14,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:57:14 BoogieIcfgContainer [2024-10-14 13:57:14,333 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 13:57:14,335 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 13:57:14,336 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 13:57:14,339 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 13:57:14,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 01:57:13" (1/3) ... [2024-10-14 13:57:14,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34ce94ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:57:14, skipping insertion in model container [2024-10-14 13:57:14,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:57:13" (2/3) ... [2024-10-14 13:57:14,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34ce94ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:57:14, skipping insertion in model container [2024-10-14 13:57:14,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:57:14" (3/3) ... [2024-10-14 13:57:14,343 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-5.i [2024-10-14 13:57:14,360 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 13:57:14,360 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 13:57:14,421 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 13:57:14,427 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;@17aa48e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 13:57:14,427 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 13:57:14,432 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 66 states have internal predecessors, (89), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-14 13:57:14,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-14 13:57:14,445 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:57:14,446 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:57:14,447 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:57:14,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:57:14,452 INFO L85 PathProgramCache]: Analyzing trace with hash -46643479, now seen corresponding path program 1 times [2024-10-14 13:57:14,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:57:14,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982754873] [2024-10-14 13:57:14,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:57:14,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:57:14,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:14,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:57:14,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:14,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:57:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:14,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:57:14,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:14,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:57:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:14,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:57:14,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:14,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:57:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:14,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:57:14,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:14,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:57:14,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:14,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:57:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:14,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:57:14,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:14,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:57:14,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:14,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:57:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:14,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:57:14,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:14,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:57:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:14,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:57:14,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:14,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:57:14,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:14,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:57:14,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:14,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:57:14,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:14,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 13:57:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:14,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 13:57:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:14,964 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 13:57:14,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:57:14,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982754873] [2024-10-14 13:57:14,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982754873] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:57:14,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:57:14,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 13:57:14,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008836065] [2024-10-14 13:57:14,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:57:14,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 13:57:14,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:57:15,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 13:57:15,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 13:57:15,003 INFO L87 Difference]: Start difference. First operand has 88 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 66 states have internal predecessors, (89), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 13:57:15,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:57:15,057 INFO L93 Difference]: Finished difference Result 173 states and 276 transitions. [2024-10-14 13:57:15,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 13:57:15,060 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 142 [2024-10-14 13:57:15,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:57:15,071 INFO L225 Difference]: With dead ends: 173 [2024-10-14 13:57:15,072 INFO L226 Difference]: Without dead ends: 86 [2024-10-14 13:57:15,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 13:57:15,081 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:57:15,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 119 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:57:15,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-10-14 13:57:15,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-10-14 13:57:15,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 64 states have (on average 1.3125) internal successors, (84), 64 states have internal predecessors, (84), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-14 13:57:15,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 124 transitions. [2024-10-14 13:57:15,136 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 124 transitions. Word has length 142 [2024-10-14 13:57:15,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:57:15,137 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 124 transitions. [2024-10-14 13:57:15,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 13:57:15,138 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 124 transitions. [2024-10-14 13:57:15,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-14 13:57:15,143 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:57:15,144 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:57:15,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 13:57:15,145 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:57:15,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:57:15,146 INFO L85 PathProgramCache]: Analyzing trace with hash 925550273, now seen corresponding path program 1 times [2024-10-14 13:57:15,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:57:15,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556778192] [2024-10-14 13:57:15,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:57:15,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:57:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:57:15,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:57:15,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:57:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:57:15,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:57:15,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:57:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:57:15,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:57:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:57:15,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:57:15,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:57:15,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:57:15,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:57:15,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:57:15,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:57:15,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:57:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:57:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:57:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 13:57:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 13:57:15,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,629 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 13:57:15,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:57:15,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556778192] [2024-10-14 13:57:15,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556778192] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:57:15,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:57:15,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 13:57:15,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482532129] [2024-10-14 13:57:15,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:57:15,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 13:57:15,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:57:15,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 13:57:15,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:57:15,636 INFO L87 Difference]: Start difference. First operand 86 states and 124 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:15,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:57:15,702 INFO L93 Difference]: Finished difference Result 173 states and 250 transitions. [2024-10-14 13:57:15,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 13:57:15,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 142 [2024-10-14 13:57:15,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:57:15,705 INFO L225 Difference]: With dead ends: 173 [2024-10-14 13:57:15,705 INFO L226 Difference]: Without dead ends: 88 [2024-10-14 13:57:15,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:57:15,707 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:57:15,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 346 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:57:15,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-10-14 13:57:15,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-10-14 13:57:15,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 66 states have (on average 1.303030303030303) internal successors, (86), 66 states have internal predecessors, (86), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-14 13:57:15,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 126 transitions. [2024-10-14 13:57:15,725 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 126 transitions. Word has length 142 [2024-10-14 13:57:15,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:57:15,730 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 126 transitions. [2024-10-14 13:57:15,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:15,731 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 126 transitions. [2024-10-14 13:57:15,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-14 13:57:15,735 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:57:15,735 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:57:15,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 13:57:15,736 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:57:15,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:57:15,737 INFO L85 PathProgramCache]: Analyzing trace with hash 548395446, now seen corresponding path program 1 times [2024-10-14 13:57:15,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:57:15,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409068781] [2024-10-14 13:57:15,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:57:15,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:57:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:57:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:57:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:57:15,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:57:15,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:57:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:57:15,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:57:15,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:57:15,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:57:15,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:57:15,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:57:15,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:57:15,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:57:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:57:15,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:57:15,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:57:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:57:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:57:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 13:57:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 13:57:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:15,964 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 13:57:15,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:57:15,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409068781] [2024-10-14 13:57:15,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409068781] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:57:15,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:57:15,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 13:57:15,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292843590] [2024-10-14 13:57:15,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:57:15,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 13:57:15,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:57:15,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 13:57:15,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:57:15,971 INFO L87 Difference]: Start difference. First operand 88 states and 126 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:16,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:57:16,035 INFO L93 Difference]: Finished difference Result 178 states and 255 transitions. [2024-10-14 13:57:16,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 13:57:16,037 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-10-14 13:57:16,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:57:16,039 INFO L225 Difference]: With dead ends: 178 [2024-10-14 13:57:16,039 INFO L226 Difference]: Without dead ends: 91 [2024-10-14 13:57:16,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:57:16,041 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 1 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:57:16,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 343 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:57:16,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-10-14 13:57:16,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 90. [2024-10-14 13:57:16,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 68 states have (on average 1.2941176470588236) internal successors, (88), 68 states have internal predecessors, (88), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-14 13:57:16,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 128 transitions. [2024-10-14 13:57:16,053 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 128 transitions. Word has length 144 [2024-10-14 13:57:16,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:57:16,055 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 128 transitions. [2024-10-14 13:57:16,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:16,056 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 128 transitions. [2024-10-14 13:57:16,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-14 13:57:16,058 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:57:16,058 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:57:16,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 13:57:16,058 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:57:16,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:57:16,059 INFO L85 PathProgramCache]: Analyzing trace with hash -260951180, now seen corresponding path program 1 times [2024-10-14 13:57:16,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:57:16,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635078243] [2024-10-14 13:57:16,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:57:16,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:57:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:57:16,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:57:16,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:57:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:57:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:57:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:57:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:57:16,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:57:16,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:57:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:57:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:57:16,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:57:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:57:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:57:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:57:16,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:57:16,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:57:16,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:57:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 13:57:16,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 13:57:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,258 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 13:57:16,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:57:16,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635078243] [2024-10-14 13:57:16,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635078243] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:57:16,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:57:16,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 13:57:16,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163115706] [2024-10-14 13:57:16,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:57:16,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 13:57:16,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:57:16,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 13:57:16,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:57:16,263 INFO L87 Difference]: Start difference. First operand 90 states and 128 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:16,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:57:16,319 INFO L93 Difference]: Finished difference Result 182 states and 259 transitions. [2024-10-14 13:57:16,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 13:57:16,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-10-14 13:57:16,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:57:16,322 INFO L225 Difference]: With dead ends: 182 [2024-10-14 13:57:16,322 INFO L226 Difference]: Without dead ends: 93 [2024-10-14 13:57:16,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:57:16,327 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 1 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:57:16,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 344 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:57:16,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-10-14 13:57:16,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 92. [2024-10-14 13:57:16,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 70 states have (on average 1.2857142857142858) internal successors, (90), 70 states have internal predecessors, (90), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-14 13:57:16,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 130 transitions. [2024-10-14 13:57:16,346 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 130 transitions. Word has length 144 [2024-10-14 13:57:16,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:57:16,347 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 130 transitions. [2024-10-14 13:57:16,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:16,347 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 130 transitions. [2024-10-14 13:57:16,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-14 13:57:16,349 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:57:16,349 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:57:16,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 13:57:16,351 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:57:16,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:57:16,352 INFO L85 PathProgramCache]: Analyzing trace with hash -203692878, now seen corresponding path program 1 times [2024-10-14 13:57:16,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:57:16,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031387084] [2024-10-14 13:57:16,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:57:16,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:57:16,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:57:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:57:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:57:16,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:57:16,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:57:16,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:57:16,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:57:16,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:57:16,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:57:16,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:57:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:57:16,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:57:16,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:57:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:57:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:57:16,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:57:16,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:57:16,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:57:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 13:57:16,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 13:57:16,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,548 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 13:57:16,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:57:16,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031387084] [2024-10-14 13:57:16,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031387084] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:57:16,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:57:16,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 13:57:16,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734489920] [2024-10-14 13:57:16,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:57:16,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 13:57:16,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:57:16,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 13:57:16,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:57:16,554 INFO L87 Difference]: Start difference. First operand 92 states and 130 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:16,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:57:16,599 INFO L93 Difference]: Finished difference Result 186 states and 263 transitions. [2024-10-14 13:57:16,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 13:57:16,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-10-14 13:57:16,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:57:16,603 INFO L225 Difference]: With dead ends: 186 [2024-10-14 13:57:16,605 INFO L226 Difference]: Without dead ends: 95 [2024-10-14 13:57:16,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:57:16,607 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 1 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:57:16,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 347 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:57:16,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-10-14 13:57:16,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 94. [2024-10-14 13:57:16,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 72 states have (on average 1.2777777777777777) internal successors, (92), 72 states have internal predecessors, (92), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-14 13:57:16,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 132 transitions. [2024-10-14 13:57:16,623 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 132 transitions. Word has length 144 [2024-10-14 13:57:16,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:57:16,624 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 132 transitions. [2024-10-14 13:57:16,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:16,624 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 132 transitions. [2024-10-14 13:57:16,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-14 13:57:16,625 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:57:16,626 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:57:16,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 13:57:16,626 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:57:16,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:57:16,628 INFO L85 PathProgramCache]: Analyzing trace with hash -203633296, now seen corresponding path program 1 times [2024-10-14 13:57:16,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:57:16,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138865946] [2024-10-14 13:57:16,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:57:16,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:57:16,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:57:16,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:57:16,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:57:16,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:57:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:57:16,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:57:16,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:57:16,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:57:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:57:16,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:57:16,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:57:16,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:57:16,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:57:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:57:16,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:57:16,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:57:16,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:57:16,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:57:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 13:57:16,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 13:57:16,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:16,879 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 13:57:16,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:57:16,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138865946] [2024-10-14 13:57:16,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138865946] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:57:16,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:57:16,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:57:16,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208470049] [2024-10-14 13:57:16,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:57:16,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:57:16,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:57:16,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:57:16,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:57:16,882 INFO L87 Difference]: Start difference. First operand 94 states and 132 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:16,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:57:16,929 INFO L93 Difference]: Finished difference Result 190 states and 267 transitions. [2024-10-14 13:57:16,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:57:16,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-10-14 13:57:16,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:57:16,934 INFO L225 Difference]: With dead ends: 190 [2024-10-14 13:57:16,934 INFO L226 Difference]: Without dead ends: 97 [2024-10-14 13:57:16,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:57:16,935 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:57:16,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 456 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:57:16,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-10-14 13:57:16,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-10-14 13:57:16,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 75 states have (on average 1.2666666666666666) internal successors, (95), 75 states have internal predecessors, (95), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-14 13:57:16,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 135 transitions. [2024-10-14 13:57:16,948 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 135 transitions. Word has length 144 [2024-10-14 13:57:16,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:57:16,949 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 135 transitions. [2024-10-14 13:57:16,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:16,949 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 135 transitions. [2024-10-14 13:57:16,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-14 13:57:16,951 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:57:16,951 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:57:16,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 13:57:16,951 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:57:16,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:57:16,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1712265504, now seen corresponding path program 1 times [2024-10-14 13:57:16,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:57:16,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476582737] [2024-10-14 13:57:16,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:57:16,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:57:17,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:57:17,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:57:17,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:57:17,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:57:17,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:57:17,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:57:17,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:57:17,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:57:17,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:57:17,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:57:17,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:57:17,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:57:17,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:57:17,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:57:17,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:57:17,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:57:17,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:57:17,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:57:17,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 13:57:17,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 13:57:17,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,256 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 13:57:17,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:57:17,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476582737] [2024-10-14 13:57:17,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476582737] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:57:17,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:57:17,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 13:57:17,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501955821] [2024-10-14 13:57:17,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:57:17,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 13:57:17,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:57:17,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 13:57:17,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:57:17,259 INFO L87 Difference]: Start difference. First operand 97 states and 135 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:17,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:57:17,366 INFO L93 Difference]: Finished difference Result 193 states and 269 transitions. [2024-10-14 13:57:17,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 13:57:17,367 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-10-14 13:57:17,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:57:17,368 INFO L225 Difference]: With dead ends: 193 [2024-10-14 13:57:17,368 INFO L226 Difference]: Without dead ends: 97 [2024-10-14 13:57:17,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:57:17,369 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 0 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:57:17,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 299 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 13:57:17,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-10-14 13:57:17,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-10-14 13:57:17,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 75 states have (on average 1.2533333333333334) internal successors, (94), 75 states have internal predecessors, (94), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-14 13:57:17,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 134 transitions. [2024-10-14 13:57:17,383 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 134 transitions. Word has length 144 [2024-10-14 13:57:17,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:57:17,383 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 134 transitions. [2024-10-14 13:57:17,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:17,383 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 134 transitions. [2024-10-14 13:57:17,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-14 13:57:17,388 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:57:17,388 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:57:17,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 13:57:17,389 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:57:17,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:57:17,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1302838114, now seen corresponding path program 1 times [2024-10-14 13:57:17,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:57:17,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260334725] [2024-10-14 13:57:17,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:57:17,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:57:17,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:57:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:57:17,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:57:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:57:17,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:57:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:57:17,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:57:17,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:57:17,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:57:17,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:57:17,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:57:17,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:57:17,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:57:17,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:57:17,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:57:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:57:17,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:57:17,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:57:17,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 13:57:17,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 13:57:17,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,643 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 13:57:17,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:57:17,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260334725] [2024-10-14 13:57:17,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260334725] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:57:17,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:57:17,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 13:57:17,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530405378] [2024-10-14 13:57:17,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:57:17,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 13:57:17,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:57:17,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 13:57:17,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 13:57:17,645 INFO L87 Difference]: Start difference. First operand 97 states and 134 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:17,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:57:17,670 INFO L93 Difference]: Finished difference Result 193 states and 267 transitions. [2024-10-14 13:57:17,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 13:57:17,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-10-14 13:57:17,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:57:17,672 INFO L225 Difference]: With dead ends: 193 [2024-10-14 13:57:17,672 INFO L226 Difference]: Without dead ends: 97 [2024-10-14 13:57:17,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 13:57:17,674 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:57:17,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 231 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:57:17,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-10-14 13:57:17,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-10-14 13:57:17,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 75 states have (on average 1.24) internal successors, (93), 75 states have internal predecessors, (93), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-14 13:57:17,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 133 transitions. [2024-10-14 13:57:17,680 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 133 transitions. Word has length 144 [2024-10-14 13:57:17,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:57:17,680 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 133 transitions. [2024-10-14 13:57:17,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:17,681 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 133 transitions. [2024-10-14 13:57:17,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-14 13:57:17,682 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:57:17,682 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:57:17,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 13:57:17,683 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:57:17,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:57:17,683 INFO L85 PathProgramCache]: Analyzing trace with hash -234399033, now seen corresponding path program 1 times [2024-10-14 13:57:17,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:57:17,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388643366] [2024-10-14 13:57:17,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:57:17,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:57:17,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:57:17,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:57:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:57:17,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:57:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:57:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:57:17,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:57:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:57:17,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:57:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:57:17,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:57:17,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:17,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:57:18,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:18,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:57:18,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:18,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:57:18,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:18,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:57:18,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:18,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:57:18,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:18,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:57:18,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:18,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:57:18,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:18,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 13:57:18,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:18,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 13:57:18,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:18,012 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 13:57:18,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:57:18,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388643366] [2024-10-14 13:57:18,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388643366] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:57:18,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:57:18,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 13:57:18,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883183768] [2024-10-14 13:57:18,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:57:18,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 13:57:18,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:57:18,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 13:57:18,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:57:18,015 INFO L87 Difference]: Start difference. First operand 97 states and 133 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:18,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:57:18,124 INFO L93 Difference]: Finished difference Result 193 states and 265 transitions. [2024-10-14 13:57:18,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 13:57:18,124 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 146 [2024-10-14 13:57:18,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:57:18,126 INFO L225 Difference]: With dead ends: 193 [2024-10-14 13:57:18,127 INFO L226 Difference]: Without dead ends: 97 [2024-10-14 13:57:18,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:57:18,128 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 0 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:57:18,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 292 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 13:57:18,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-10-14 13:57:18,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-10-14 13:57:18,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 75 states have (on average 1.2266666666666666) internal successors, (92), 75 states have internal predecessors, (92), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-14 13:57:18,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 132 transitions. [2024-10-14 13:57:18,138 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 132 transitions. Word has length 146 [2024-10-14 13:57:18,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:57:18,138 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 132 transitions. [2024-10-14 13:57:18,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:18,139 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 132 transitions. [2024-10-14 13:57:18,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-14 13:57:18,140 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:57:18,140 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:57:18,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 13:57:18,140 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:57:18,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:57:18,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1923342775, now seen corresponding path program 1 times [2024-10-14 13:57:18,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:57:18,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963104825] [2024-10-14 13:57:18,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:57:18,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:57:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:20,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:57:20,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:20,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:57:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:20,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:57:20,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:20,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:57:20,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:20,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:57:20,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:20,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:57:20,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:20,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:57:20,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:20,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:57:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:20,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:57:20,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:20,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:57:20,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:20,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:57:20,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:20,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:57:20,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:20,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:57:20,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:20,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:57:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:20,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:57:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:20,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:57:20,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:20,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:57:20,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:20,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:57:20,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:20,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 13:57:20,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:20,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 13:57:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:20,558 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 13:57:20,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:57:20,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963104825] [2024-10-14 13:57:20,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963104825] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:57:20,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:57:20,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 13:57:20,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142805177] [2024-10-14 13:57:20,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:57:20,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 13:57:20,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:57:20,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 13:57:20,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:57:20,561 INFO L87 Difference]: Start difference. First operand 97 states and 132 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:21,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:57:21,602 INFO L93 Difference]: Finished difference Result 345 states and 474 transitions. [2024-10-14 13:57:21,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 13:57:21,602 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 146 [2024-10-14 13:57:21,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:57:21,604 INFO L225 Difference]: With dead ends: 345 [2024-10-14 13:57:21,604 INFO L226 Difference]: Without dead ends: 249 [2024-10-14 13:57:21,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-10-14 13:57:21,606 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 133 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 13:57:21,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 687 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 13:57:21,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-10-14 13:57:21,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 187. [2024-10-14 13:57:21,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 144 states have (on average 1.2152777777777777) internal successors, (175), 144 states have internal predecessors, (175), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-14 13:57:21,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 255 transitions. [2024-10-14 13:57:21,620 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 255 transitions. Word has length 146 [2024-10-14 13:57:21,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:57:21,621 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 255 transitions. [2024-10-14 13:57:21,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:21,621 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 255 transitions. [2024-10-14 13:57:21,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-14 13:57:21,622 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:57:21,622 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:57:21,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 13:57:21,623 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:57:21,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:57:21,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1059719750, now seen corresponding path program 1 times [2024-10-14 13:57:21,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:57:21,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602566101] [2024-10-14 13:57:21,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:57:21,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:57:21,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:23,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:57:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:23,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:57:23,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:23,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:57:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:23,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:57:23,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:23,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:57:23,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:23,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:57:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:23,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:57:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:23,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:57:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:23,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:57:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:23,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:57:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:23,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:57:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:23,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:57:23,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:23,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:57:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:23,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:57:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:23,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:57:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:23,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:57:23,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:23,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:57:23,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:23,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:57:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:23,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 13:57:23,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:23,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 13:57:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:23,446 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 13:57:23,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:57:23,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602566101] [2024-10-14 13:57:23,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602566101] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:57:23,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:57:23,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 13:57:23,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085655131] [2024-10-14 13:57:23,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:57:23,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 13:57:23,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:57:23,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 13:57:23,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:57:23,450 INFO L87 Difference]: Start difference. First operand 187 states and 255 transitions. Second operand has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 13:57:24,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:57:24,132 INFO L93 Difference]: Finished difference Result 347 states and 476 transitions. [2024-10-14 13:57:24,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 13:57:24,133 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 147 [2024-10-14 13:57:24,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:57:24,135 INFO L225 Difference]: With dead ends: 347 [2024-10-14 13:57:24,135 INFO L226 Difference]: Without dead ends: 251 [2024-10-14 13:57:24,135 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-10-14 13:57:24,136 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 103 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 13:57:24,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 926 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 13:57:24,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-10-14 13:57:24,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 95. [2024-10-14 13:57:24,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 73 states have (on average 1.2191780821917808) internal successors, (89), 73 states have internal predecessors, (89), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-14 13:57:24,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 129 transitions. [2024-10-14 13:57:24,151 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 129 transitions. Word has length 147 [2024-10-14 13:57:24,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:57:24,151 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 129 transitions. [2024-10-14 13:57:24,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 13:57:24,152 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 129 transitions. [2024-10-14 13:57:24,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-14 13:57:24,154 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:57:24,154 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:57:24,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 13:57:24,154 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:57:24,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:57:24,155 INFO L85 PathProgramCache]: Analyzing trace with hash 965603017, now seen corresponding path program 1 times [2024-10-14 13:57:24,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:57:24,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245300987] [2024-10-14 13:57:24,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:57:24,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:57:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:24,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:57:24,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:24,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:57:24,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:24,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:57:24,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:24,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:57:24,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:24,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:57:24,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:24,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:57:24,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:24,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:57:24,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:24,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:57:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:57:25,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:57:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:57:25,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:57:25,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:57:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:57:25,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:57:25,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:57:25,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:57:25,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:57:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 13:57:25,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 13:57:25,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,021 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 13:57:25,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:57:25,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245300987] [2024-10-14 13:57:25,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245300987] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:57:25,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:57:25,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 13:57:25,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266537332] [2024-10-14 13:57:25,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:57:25,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 13:57:25,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:57:25,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 13:57:25,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:57:25,023 INFO L87 Difference]: Start difference. First operand 95 states and 129 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 13:57:25,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:57:25,284 INFO L93 Difference]: Finished difference Result 239 states and 319 transitions. [2024-10-14 13:57:25,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 13:57:25,285 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 148 [2024-10-14 13:57:25,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:57:25,286 INFO L225 Difference]: With dead ends: 239 [2024-10-14 13:57:25,286 INFO L226 Difference]: Without dead ends: 145 [2024-10-14 13:57:25,287 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:57:25,287 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 44 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:57:25,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 359 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:57:25,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-10-14 13:57:25,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 142. [2024-10-14 13:57:25,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 115 states have (on average 1.2173913043478262) internal successors, (140), 116 states have internal predecessors, (140), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-14 13:57:25,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 188 transitions. [2024-10-14 13:57:25,301 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 188 transitions. Word has length 148 [2024-10-14 13:57:25,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:57:25,303 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 188 transitions. [2024-10-14 13:57:25,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 13:57:25,303 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 188 transitions. [2024-10-14 13:57:25,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-14 13:57:25,305 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:57:25,305 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:57:25,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 13:57:25,305 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:57:25,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:57:25,305 INFO L85 PathProgramCache]: Analyzing trace with hash -904812149, now seen corresponding path program 1 times [2024-10-14 13:57:25,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:57:25,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67451482] [2024-10-14 13:57:25,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:57:25,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:57:25,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:57:25,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:57:25,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:57:25,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:57:25,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:57:25,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:57:25,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:57:25,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:57:25,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:57:25,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:57:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:57:25,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:57:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:57:25,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:57:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:57:25,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:57:25,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:57:25,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:57:25,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 13:57:25,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 13:57:25,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:25,569 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 13:57:25,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:57:25,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67451482] [2024-10-14 13:57:25,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67451482] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:57:25,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:57:25,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 13:57:25,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714139538] [2024-10-14 13:57:25,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:57:25,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 13:57:25,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:57:25,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 13:57:25,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 13:57:25,571 INFO L87 Difference]: Start difference. First operand 142 states and 188 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:25,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:57:25,593 INFO L93 Difference]: Finished difference Result 283 states and 375 transitions. [2024-10-14 13:57:25,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 13:57:25,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 148 [2024-10-14 13:57:25,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:57:25,597 INFO L225 Difference]: With dead ends: 283 [2024-10-14 13:57:25,597 INFO L226 Difference]: Without dead ends: 142 [2024-10-14 13:57:25,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 13:57:25,599 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 0 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:57:25,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 226 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:57:25,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-10-14 13:57:25,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-10-14 13:57:25,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 115 states have (on average 1.2) internal successors, (138), 116 states have internal predecessors, (138), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-14 13:57:25,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 186 transitions. [2024-10-14 13:57:25,612 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 186 transitions. Word has length 148 [2024-10-14 13:57:25,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:57:25,613 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 186 transitions. [2024-10-14 13:57:25,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:25,614 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 186 transitions. [2024-10-14 13:57:25,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-14 13:57:25,622 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:57:25,622 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:57:25,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 13:57:25,622 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:57:25,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:57:25,623 INFO L85 PathProgramCache]: Analyzing trace with hash -2057555662, now seen corresponding path program 1 times [2024-10-14 13:57:25,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:57:25,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996009826] [2024-10-14 13:57:25,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:57:25,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:57:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:26,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:57:26,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:26,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:57:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:26,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:57:26,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:26,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:57:26,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:26,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:57:26,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:26,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:57:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:26,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:57:26,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:26,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:57:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:26,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:57:26,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:26,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:57:26,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:26,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:57:26,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:26,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:57:26,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:26,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:57:26,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:26,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:57:26,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:26,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:57:26,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:26,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:57:26,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:26,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:57:26,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:26,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:57:26,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:26,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 13:57:26,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:26,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 13:57:26,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:26,839 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 27 proven. 30 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-10-14 13:57:26,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:57:26,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996009826] [2024-10-14 13:57:26,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996009826] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 13:57:26,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911237807] [2024-10-14 13:57:26,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:57:26,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 13:57:26,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 13:57:26,842 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 13:57:26,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 13:57:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:27,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-14 13:57:27,060 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 13:57:27,136 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 13:57:27,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 41 [2024-10-14 13:57:27,416 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 13:57:27,416 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 13:57:27,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911237807] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:57:27,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 13:57:27,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 15 [2024-10-14 13:57:27,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490648706] [2024-10-14 13:57:27,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:57:27,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 13:57:27,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:57:27,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 13:57:27,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-10-14 13:57:27,420 INFO L87 Difference]: Start difference. First operand 142 states and 186 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:27,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:57:27,866 INFO L93 Difference]: Finished difference Result 173 states and 224 transitions. [2024-10-14 13:57:27,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 13:57:27,867 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-10-14 13:57:27,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:57:27,868 INFO L225 Difference]: With dead ends: 173 [2024-10-14 13:57:27,868 INFO L226 Difference]: Without dead ends: 171 [2024-10-14 13:57:27,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 190 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2024-10-14 13:57:27,869 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 49 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 13:57:27,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 536 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 13:57:27,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-10-14 13:57:27,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 170. [2024-10-14 13:57:27,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 133 states have (on average 1.1729323308270676) internal successors, (156), 135 states have internal predecessors, (156), 32 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-14 13:57:27,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 220 transitions. [2024-10-14 13:57:27,885 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 220 transitions. Word has length 150 [2024-10-14 13:57:27,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:57:27,887 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 220 transitions. [2024-10-14 13:57:27,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:27,887 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 220 transitions. [2024-10-14 13:57:27,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-14 13:57:27,888 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:57:27,889 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:57:27,907 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 13:57:28,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-14 13:57:28,090 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:57:28,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:57:28,090 INFO L85 PathProgramCache]: Analyzing trace with hash -2057496080, now seen corresponding path program 1 times [2024-10-14 13:57:28,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:57:28,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639810926] [2024-10-14 13:57:28,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:57:28,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:57:28,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:29,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:57:29,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:29,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:57:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:29,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:57:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:29,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:57:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:29,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:57:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:29,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:57:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:29,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:57:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:29,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:57:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:29,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:57:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:29,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:57:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:29,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:57:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:29,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:57:29,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:29,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:57:29,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:29,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:57:29,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:29,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:57:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:29,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:57:29,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:29,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:57:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:29,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:57:29,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:29,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 13:57:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:29,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 13:57:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:29,317 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 13:57:29,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:57:29,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639810926] [2024-10-14 13:57:29,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639810926] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:57:29,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:57:29,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 13:57:29,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550680793] [2024-10-14 13:57:29,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:57:29,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 13:57:29,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:57:29,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 13:57:29,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-14 13:57:29,321 INFO L87 Difference]: Start difference. First operand 170 states and 220 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:30,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:57:30,207 INFO L93 Difference]: Finished difference Result 455 states and 591 transitions. [2024-10-14 13:57:30,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 13:57:30,208 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-10-14 13:57:30,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:57:30,211 INFO L225 Difference]: With dead ends: 455 [2024-10-14 13:57:30,212 INFO L226 Difference]: Without dead ends: 306 [2024-10-14 13:57:30,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-10-14 13:57:30,213 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 138 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 13:57:30,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 488 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 13:57:30,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-10-14 13:57:30,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 289. [2024-10-14 13:57:30,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 216 states have (on average 1.1435185185185186) internal successors, (247), 218 states have internal predecessors, (247), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-10-14 13:57:30,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 375 transitions. [2024-10-14 13:57:30,246 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 375 transitions. Word has length 150 [2024-10-14 13:57:30,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:57:30,247 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 375 transitions. [2024-10-14 13:57:30,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:30,247 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 375 transitions. [2024-10-14 13:57:30,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-14 13:57:30,248 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:57:30,248 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:57:30,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 13:57:30,249 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:57:30,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:57:30,249 INFO L85 PathProgramCache]: Analyzing trace with hash -2000237778, now seen corresponding path program 1 times [2024-10-14 13:57:30,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:57:30,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162568057] [2024-10-14 13:57:30,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:57:30,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:57:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:57:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:57:30,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:57:30,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:57:30,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:57:30,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:57:30,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:57:30,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:57:30,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:57:30,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:57:30,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:57:30,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:57:30,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:57:30,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:57:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:57:30,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:57:30,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:57:30,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:57:30,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 13:57:30,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 13:57:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,529 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 13:57:30,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:57:30,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162568057] [2024-10-14 13:57:30,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162568057] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:57:30,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:57:30,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:57:30,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360446090] [2024-10-14 13:57:30,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:57:30,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:57:30,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:57:30,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:57:30,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:57:30,531 INFO L87 Difference]: Start difference. First operand 289 states and 375 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:30,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:57:30,762 INFO L93 Difference]: Finished difference Result 551 states and 712 transitions. [2024-10-14 13:57:30,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:57:30,763 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-10-14 13:57:30,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:57:30,765 INFO L225 Difference]: With dead ends: 551 [2024-10-14 13:57:30,765 INFO L226 Difference]: Without dead ends: 311 [2024-10-14 13:57:30,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:57:30,766 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 92 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:57:30,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 474 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:57:30,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-10-14 13:57:30,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 289. [2024-10-14 13:57:30,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 216 states have (on average 1.1296296296296295) internal successors, (244), 218 states have internal predecessors, (244), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-10-14 13:57:30,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 372 transitions. [2024-10-14 13:57:30,793 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 372 transitions. Word has length 150 [2024-10-14 13:57:30,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:57:30,794 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 372 transitions. [2024-10-14 13:57:30,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:30,794 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 372 transitions. [2024-10-14 13:57:30,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-14 13:57:30,795 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:57:30,795 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:57:30,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 13:57:30,796 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:57:30,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:57:30,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1485382892, now seen corresponding path program 1 times [2024-10-14 13:57:30,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:57:30,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456440622] [2024-10-14 13:57:30,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:57:30,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:57:30,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:57:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:57:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:57:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:57:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:57:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:57:30,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:57:30,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:57:30,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:57:30,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:57:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:57:30,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:57:30,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:57:30,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:57:30,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:57:30,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:57:30,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:57:30,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:57:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 13:57:30,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 13:57:30,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:30,947 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 13:57:30,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:57:30,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456440622] [2024-10-14 13:57:30,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456440622] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:57:30,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:57:30,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:57:30,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235371978] [2024-10-14 13:57:30,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:57:30,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:57:30,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:57:30,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:57:30,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:57:30,950 INFO L87 Difference]: Start difference. First operand 289 states and 372 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:31,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:57:31,009 INFO L93 Difference]: Finished difference Result 538 states and 689 transitions. [2024-10-14 13:57:31,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:57:31,009 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-10-14 13:57:31,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:57:31,012 INFO L225 Difference]: With dead ends: 538 [2024-10-14 13:57:31,012 INFO L226 Difference]: Without dead ends: 298 [2024-10-14 13:57:31,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:57:31,013 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:57:31,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 437 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:57:31,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-10-14 13:57:31,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2024-10-14 13:57:31,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 225 states have (on average 1.1244444444444444) internal successors, (253), 227 states have internal predecessors, (253), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64) [2024-10-14 13:57:31,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 381 transitions. [2024-10-14 13:57:31,039 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 381 transitions. Word has length 150 [2024-10-14 13:57:31,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:57:31,039 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 381 transitions. [2024-10-14 13:57:31,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:31,040 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 381 transitions. [2024-10-14 13:57:31,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-14 13:57:31,041 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:57:31,041 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:57:31,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 13:57:31,041 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:57:31,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:57:31,042 INFO L85 PathProgramCache]: Analyzing trace with hash -173663251, now seen corresponding path program 1 times [2024-10-14 13:57:31,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:57:31,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318617018] [2024-10-14 13:57:31,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:57:31,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:57:31,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:32,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:57:32,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:32,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:57:32,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:32,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:57:32,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:32,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:57:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:32,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:57:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:32,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:57:32,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:32,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:57:32,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:32,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:57:32,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:32,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:57:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:32,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:57:32,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:32,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:57:32,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:32,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:57:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:32,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:57:32,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:32,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:57:32,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:32,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:57:32,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:32,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:57:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:32,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:57:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:32,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:57:32,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:32,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 13:57:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:32,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 13:57:32,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:32,141 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 13:57:32,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:57:32,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318617018] [2024-10-14 13:57:32,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318617018] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:57:32,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:57:32,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 13:57:32,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779844539] [2024-10-14 13:57:32,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:57:32,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 13:57:32,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:57:32,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 13:57:32,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-14 13:57:32,143 INFO L87 Difference]: Start difference. First operand 298 states and 381 transitions. Second operand has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 13:57:32,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:57:32,576 INFO L93 Difference]: Finished difference Result 472 states and 599 transitions. [2024-10-14 13:57:32,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 13:57:32,577 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 151 [2024-10-14 13:57:32,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:57:32,579 INFO L225 Difference]: With dead ends: 472 [2024-10-14 13:57:32,579 INFO L226 Difference]: Without dead ends: 317 [2024-10-14 13:57:32,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-10-14 13:57:32,580 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 61 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 13:57:32,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 847 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 13:57:32,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-10-14 13:57:32,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 311. [2024-10-14 13:57:32,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 233 states have (on average 1.1201716738197425) internal successors, (261), 235 states have internal predecessors, (261), 68 states have call successors, (68), 9 states have call predecessors, (68), 9 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-14 13:57:32,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 397 transitions. [2024-10-14 13:57:32,605 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 397 transitions. Word has length 151 [2024-10-14 13:57:32,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:57:32,605 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 397 transitions. [2024-10-14 13:57:32,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 13:57:32,606 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 397 transitions. [2024-10-14 13:57:32,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-14 13:57:32,607 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:57:32,607 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:57:32,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 13:57:32,607 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:57:32,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:57:32,608 INFO L85 PathProgramCache]: Analyzing trace with hash -2044018835, now seen corresponding path program 1 times [2024-10-14 13:57:32,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:57:32,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937582495] [2024-10-14 13:57:32,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:57:32,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:57:32,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:33,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:57:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:33,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:57:33,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:33,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:57:33,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:33,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:57:33,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:33,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:57:33,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:33,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:57:33,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:33,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:57:33,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:33,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:57:33,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:33,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:57:33,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:33,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:57:33,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:33,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:57:33,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:33,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:57:33,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:33,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:57:33,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:33,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:57:33,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:33,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:57:33,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:33,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:57:33,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:33,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:57:33,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:33,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:57:33,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:33,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 13:57:33,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:33,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 13:57:33,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:33,333 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 13:57:33,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:57:33,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937582495] [2024-10-14 13:57:33,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937582495] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:57:33,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:57:33,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 13:57:33,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276380531] [2024-10-14 13:57:33,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:57:33,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 13:57:33,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:57:33,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 13:57:33,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:57:33,335 INFO L87 Difference]: Start difference. First operand 311 states and 397 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 13:57:33,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:57:33,670 INFO L93 Difference]: Finished difference Result 485 states and 613 transitions. [2024-10-14 13:57:33,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 13:57:33,671 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 151 [2024-10-14 13:57:33,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:57:33,673 INFO L225 Difference]: With dead ends: 485 [2024-10-14 13:57:33,673 INFO L226 Difference]: Without dead ends: 317 [2024-10-14 13:57:33,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:57:33,674 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 49 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:57:33,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 489 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:57:33,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-10-14 13:57:33,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 266. [2024-10-14 13:57:33,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 197 states have (on average 1.1116751269035532) internal successors, (219), 198 states have internal predecessors, (219), 60 states have call successors, (60), 8 states have call predecessors, (60), 8 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-14 13:57:33,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 339 transitions. [2024-10-14 13:57:33,703 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 339 transitions. Word has length 151 [2024-10-14 13:57:33,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:57:33,704 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 339 transitions. [2024-10-14 13:57:33,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 13:57:33,704 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 339 transitions. [2024-10-14 13:57:33,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 13:57:33,706 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:57:33,707 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:57:33,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 13:57:33,707 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:57:33,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:57:33,708 INFO L85 PathProgramCache]: Analyzing trace with hash 355748743, now seen corresponding path program 1 times [2024-10-14 13:57:33,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:57:33,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136157820] [2024-10-14 13:57:33,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:57:33,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:57:33,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 13:57:33,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [937023406] [2024-10-14 13:57:33,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:57:33,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 13:57:33,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 13:57:33,830 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 13:57:33,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 13:57:34,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:34,068 INFO L255 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-10-14 13:57:34,075 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 13:57:34,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-10-14 13:57:34,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-14 13:57:34,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-14 13:57:34,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2024-10-14 13:57:34,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2024-10-14 13:57:34,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 81 [2024-10-14 13:57:34,373 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 13:57:34,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 81 treesize of output 129 [2024-10-14 13:57:34,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 65 [2024-10-14 13:57:34,638 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 13:57:34,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 189 treesize of output 124 [2024-10-14 13:57:35,313 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 13:57:35,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 199 treesize of output 87 [2024-10-14 13:57:35,378 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 289 proven. 12 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2024-10-14 13:57:35,378 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 13:57:35,781 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 13:57:35,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:57:35,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136157820] [2024-10-14 13:57:35,782 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 13:57:35,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937023406] [2024-10-14 13:57:35,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937023406] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-14 13:57:35,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 13:57:35,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2024-10-14 13:57:35,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008599197] [2024-10-14 13:57:35,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:57:35,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:57:35,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:57:35,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:57:35,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-10-14 13:57:35,784 INFO L87 Difference]: Start difference. First operand 266 states and 339 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:36,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:57:36,595 INFO L93 Difference]: Finished difference Result 616 states and 761 transitions. [2024-10-14 13:57:36,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:57:36,596 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2024-10-14 13:57:36,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:57:36,599 INFO L225 Difference]: With dead ends: 616 [2024-10-14 13:57:36,599 INFO L226 Difference]: Without dead ends: 399 [2024-10-14 13:57:36,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-10-14 13:57:36,603 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 80 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 13:57:36,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 241 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 13:57:36,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2024-10-14 13:57:36,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 267. [2024-10-14 13:57:36,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 220 states have (on average 1.1136363636363635) internal successors, (245), 220 states have internal predecessors, (245), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-14 13:57:36,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 325 transitions. [2024-10-14 13:57:36,630 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 325 transitions. Word has length 152 [2024-10-14 13:57:36,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:57:36,631 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 325 transitions. [2024-10-14 13:57:36,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:36,631 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 325 transitions. [2024-10-14 13:57:36,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-14 13:57:36,632 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:57:36,633 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:57:36,653 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 13:57:36,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2024-10-14 13:57:36,834 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:57:36,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:57:36,834 INFO L85 PathProgramCache]: Analyzing trace with hash -418038062, now seen corresponding path program 1 times [2024-10-14 13:57:36,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:57:36,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712723653] [2024-10-14 13:57:36,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:57:36,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:57:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:37,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:57:37,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:37,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:57:37,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:37,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:57:38,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:38,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:57:38,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:38,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:57:38,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:38,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:57:38,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:38,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:57:38,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:38,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:57:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:38,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:57:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:38,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:57:38,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:38,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:57:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:38,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:57:38,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:38,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:57:38,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:38,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:57:38,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:38,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:57:38,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:38,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:57:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:38,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:57:38,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:38,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 13:57:38,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:38,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 13:57:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:38,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 13:57:38,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:57:38,024 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 13:57:38,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:57:38,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712723653] [2024-10-14 13:57:38,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712723653] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:57:38,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:57:38,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 13:57:38,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636231126] [2024-10-14 13:57:38,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:57:38,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 13:57:38,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:57:38,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 13:57:38,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:57:38,026 INFO L87 Difference]: Start difference. First operand 267 states and 325 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:38,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:57:38,315 INFO L93 Difference]: Finished difference Result 487 states and 587 transitions. [2024-10-14 13:57:38,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 13:57:38,316 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2024-10-14 13:57:38,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:57:38,318 INFO L225 Difference]: With dead ends: 487 [2024-10-14 13:57:38,318 INFO L226 Difference]: Without dead ends: 330 [2024-10-14 13:57:38,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:57:38,319 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 39 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:57:38,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 446 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:57:38,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2024-10-14 13:57:38,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 295. [2024-10-14 13:57:38,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 248 states have (on average 1.1088709677419355) internal successors, (275), 248 states have internal predecessors, (275), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-14 13:57:38,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 355 transitions. [2024-10-14 13:57:38,356 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 355 transitions. Word has length 153 [2024-10-14 13:57:38,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:57:38,357 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 355 transitions. [2024-10-14 13:57:38,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 13:57:38,357 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 355 transitions. [2024-10-14 13:57:38,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-14 13:57:38,358 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:57:38,359 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:57:38,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 13:57:38,359 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:57:38,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:57:38,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1520103519, now seen corresponding path program 1 times [2024-10-14 13:57:38,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:57:38,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440327051] [2024-10-14 13:57:38,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:57:38,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:57:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat