./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-27.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-27.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 2188f6336d1ca1c280fca67f4da63aab9226326f5793dc0ad50e5520551c6099 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 13:54:22,589 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 13:54:22,670 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 13:54:22,679 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 13:54:22,679 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 13:54:22,715 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 13:54:22,715 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 13:54:22,716 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 13:54:22,716 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 13:54:22,716 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 13:54:22,717 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 13:54:22,717 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 13:54:22,718 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 13:54:22,718 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 13:54:22,720 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 13:54:22,720 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 13:54:22,721 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 13:54:22,724 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 13:54:22,724 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 13:54:22,724 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 13:54:22,725 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 13:54:22,725 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 13:54:22,725 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 13:54:22,726 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 13:54:22,726 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 13:54:22,726 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 13:54:22,726 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 13:54:22,727 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 13:54:22,727 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 13:54:22,727 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 13:54:22,727 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 13:54:22,727 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 13:54:22,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 13:54:22,728 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 13:54:22,728 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 13:54:22,729 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 13:54:22,729 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 13:54:22,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 13:54:22,730 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 13:54:22,730 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 13:54:22,730 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 13:54:22,731 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 13:54:22,731 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2188f6336d1ca1c280fca67f4da63aab9226326f5793dc0ad50e5520551c6099 [2024-10-14 13:54:23,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 13:54:23,024 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 13:54:23,028 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 13:54:23,029 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 13:54:23,029 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 13:54:23,031 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-27.i [2024-10-14 13:54:24,561 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 13:54:24,776 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 13:54:24,777 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-27.i [2024-10-14 13:54:24,786 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63c677fda/f09194e9ac044912ab21326c7200fddd/FLAG47fc1fa19 [2024-10-14 13:54:25,157 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63c677fda/f09194e9ac044912ab21326c7200fddd [2024-10-14 13:54:25,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 13:54:25,160 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 13:54:25,162 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 13:54:25,162 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 13:54:25,168 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 13:54:25,169 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:54:25" (1/1) ... [2024-10-14 13:54:25,170 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57080997 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:54:25, skipping insertion in model container [2024-10-14 13:54:25,170 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:54:25" (1/1) ... [2024-10-14 13:54:25,198 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 13:54:25,350 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-27.i[916,929] [2024-10-14 13:54:25,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 13:54:25,458 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 13:54:25,470 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-27.i[916,929] [2024-10-14 13:54:25,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 13:54:25,563 INFO L204 MainTranslator]: Completed translation [2024-10-14 13:54:25,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:54:25 WrapperNode [2024-10-14 13:54:25,564 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 13:54:25,566 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 13:54:25,566 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 13:54:25,566 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 13:54:25,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:54:25" (1/1) ... [2024-10-14 13:54:25,591 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:54:25" (1/1) ... [2024-10-14 13:54:25,643 INFO L138 Inliner]: procedures = 26, calls = 152, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 427 [2024-10-14 13:54:25,644 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 13:54:25,644 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 13:54:25,645 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 13:54:25,645 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 13:54:25,657 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:54:25" (1/1) ... [2024-10-14 13:54:25,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:54:25" (1/1) ... [2024-10-14 13:54:25,662 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:54:25" (1/1) ... [2024-10-14 13:54:25,680 INFO L175 MemorySlicer]: Split 123 memory accesses to 2 slices as follows [2, 121]. 98 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 12]. The 16 writes are split as follows [0, 16]. [2024-10-14 13:54:25,681 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:54:25" (1/1) ... [2024-10-14 13:54:25,681 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:54:25" (1/1) ... [2024-10-14 13:54:25,700 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:54:25" (1/1) ... [2024-10-14 13:54:25,703 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:54:25" (1/1) ... [2024-10-14 13:54:25,706 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:54:25" (1/1) ... [2024-10-14 13:54:25,709 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:54:25" (1/1) ... [2024-10-14 13:54:25,717 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 13:54:25,718 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 13:54:25,722 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 13:54:25,722 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 13:54:25,723 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:54:25" (1/1) ... [2024-10-14 13:54:25,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 13:54:25,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 13:54:25,769 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 13:54:25,773 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 13:54:25,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 13:54:25,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-14 13:54:25,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-14 13:54:25,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-14 13:54:25,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-14 13:54:25,819 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 13:54:25,819 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 13:54:25,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 13:54:25,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 13:54:25,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 13:54:25,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 13:54:25,911 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 13:54:25,913 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 13:54:26,396 INFO L? ?]: Removed 110 outVars from TransFormulas that were not future-live. [2024-10-14 13:54:26,397 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 13:54:26,441 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 13:54:26,443 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 13:54:26,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:54:26 BoogieIcfgContainer [2024-10-14 13:54:26,444 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 13:54:26,446 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 13:54:26,447 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 13:54:26,450 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 13:54:26,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 01:54:25" (1/3) ... [2024-10-14 13:54:26,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49598165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:54:26, skipping insertion in model container [2024-10-14 13:54:26,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:54:25" (2/3) ... [2024-10-14 13:54:26,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49598165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:54:26, skipping insertion in model container [2024-10-14 13:54:26,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:54:26" (3/3) ... [2024-10-14 13:54:26,457 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-27.i [2024-10-14 13:54:26,473 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 13:54:26,476 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 13:54:26,537 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 13:54:26,544 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;@21e2ad52, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 13:54:26,545 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 13:54:26,550 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 68 states have internal predecessors, (95), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-14 13:54:26,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-14 13:54:26,561 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:54:26,562 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:26,562 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:54:26,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:54:26,568 INFO L85 PathProgramCache]: Analyzing trace with hash -719955901, now seen corresponding path program 1 times [2024-10-14 13:54:26,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:54:26,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681343831] [2024-10-14 13:54:26,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:54:26,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:54:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:26,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:54:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:26,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:54:26,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:26,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:54:26,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:26,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:54:26,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:26,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:54:26,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:26,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:54:26,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:26,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:54:26,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:26,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:54:26,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:26,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:54:26,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:26,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:54:26,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:26,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:54:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:26,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:54:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:26,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:54:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:26,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:54:26,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:27,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:54:27,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:27,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:54:27,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:27,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:54:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:27,015 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:54:27,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:54:27,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681343831] [2024-10-14 13:54:27,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681343831] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:54:27,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:54:27,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 13:54:27,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790839051] [2024-10-14 13:54:27,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:54:27,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 13:54:27,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:54:27,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 13:54:27,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 13:54:27,054 INFO L87 Difference]: Start difference. First operand has 87 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 68 states have internal predecessors, (95), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:54:27,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:54:27,107 INFO L93 Difference]: Finished difference Result 171 states and 273 transitions. [2024-10-14 13:54:27,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 13:54:27,111 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 126 [2024-10-14 13:54:27,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:54:27,119 INFO L225 Difference]: With dead ends: 171 [2024-10-14 13:54:27,120 INFO L226 Difference]: Without dead ends: 85 [2024-10-14 13:54:27,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 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 13:54:27,129 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:54:27,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:54:27,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-10-14 13:54:27,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-10-14 13:54:27,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 66 states have (on average 1.3636363636363635) internal successors, (90), 66 states have internal predecessors, (90), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-14 13:54:27,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 124 transitions. [2024-10-14 13:54:27,193 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 124 transitions. Word has length 126 [2024-10-14 13:54:27,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:54:27,195 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 124 transitions. [2024-10-14 13:54:27,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:54:27,196 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 124 transitions. [2024-10-14 13:54:27,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-14 13:54:27,201 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:54:27,201 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:27,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 13:54:27,202 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:54:27,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:54:27,203 INFO L85 PathProgramCache]: Analyzing trace with hash -953029023, now seen corresponding path program 1 times [2024-10-14 13:54:27,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:54:27,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558868971] [2024-10-14 13:54:27,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:54:27,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:54:27,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:28,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:54:28,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:28,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:54:28,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:28,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:54:28,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:28,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:54:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:28,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:54:28,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:28,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:54:28,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:28,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:54:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:28,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:54:28,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:28,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:54:28,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:28,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:54:28,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:28,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:54:28,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:28,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:54:28,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:28,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:54:28,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:28,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:54:28,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:28,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:54:28,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:28,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:54:28,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:28,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:54:28,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:28,618 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:54:28,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:54:28,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558868971] [2024-10-14 13:54:28,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558868971] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:54:28,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:54:28,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 13:54:28,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255533376] [2024-10-14 13:54:28,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:54:28,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 13:54:28,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:54:28,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 13:54:28,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:54:28,627 INFO L87 Difference]: Start difference. First operand 85 states and 124 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:54:28,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:54:28,980 INFO L93 Difference]: Finished difference Result 253 states and 370 transitions. [2024-10-14 13:54:28,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 13:54:28,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 126 [2024-10-14 13:54:28,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:54:28,984 INFO L225 Difference]: With dead ends: 253 [2024-10-14 13:54:28,984 INFO L226 Difference]: Without dead ends: 169 [2024-10-14 13:54:28,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:54:28,986 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 76 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:54:28,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 284 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:54:28,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-10-14 13:54:29,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 165. [2024-10-14 13:54:29,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 128 states have (on average 1.359375) internal successors, (174), 128 states have internal predecessors, (174), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-14 13:54:29,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 242 transitions. [2024-10-14 13:54:29,029 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 242 transitions. Word has length 126 [2024-10-14 13:54:29,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:54:29,030 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 242 transitions. [2024-10-14 13:54:29,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:54:29,031 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 242 transitions. [2024-10-14 13:54:29,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-14 13:54:29,035 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:54:29,035 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:29,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 13:54:29,036 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:54:29,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:54:29,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1041115683, now seen corresponding path program 1 times [2024-10-14 13:54:29,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:54:29,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438729332] [2024-10-14 13:54:29,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:54:29,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:54:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:30,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:54:30,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:30,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:54:30,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:30,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:54:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:30,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:54:30,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:30,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:54:30,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:30,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:54:30,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:30,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:54:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:30,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:54:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:30,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:54:30,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:30,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:54:30,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:30,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:54:30,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:30,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:54:30,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:30,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:54:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:30,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:54:30,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:30,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:54:30,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:30,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:54:30,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:30,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:54:30,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:30,068 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:54:30,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:54:30,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438729332] [2024-10-14 13:54:30,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438729332] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:54:30,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:54:30,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 13:54:30,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784382925] [2024-10-14 13:54:30,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:54:30,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 13:54:30,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:54:30,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 13:54:30,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:54:30,072 INFO L87 Difference]: Start difference. First operand 165 states and 242 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:54:30,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:54:30,509 INFO L93 Difference]: Finished difference Result 455 states and 666 transitions. [2024-10-14 13:54:30,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 13:54:30,510 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 126 [2024-10-14 13:54:30,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:54:30,515 INFO L225 Difference]: With dead ends: 455 [2024-10-14 13:54:30,515 INFO L226 Difference]: Without dead ends: 291 [2024-10-14 13:54:30,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:54:30,521 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 76 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 13:54:30,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 472 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 13:54:30,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-10-14 13:54:30,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 287. [2024-10-14 13:54:30,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 232 states have (on average 1.3793103448275863) internal successors, (320), 234 states have internal predecessors, (320), 50 states have call successors, (50), 4 states have call predecessors, (50), 4 states have return successors, (50), 48 states have call predecessors, (50), 50 states have call successors, (50) [2024-10-14 13:54:30,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 420 transitions. [2024-10-14 13:54:30,587 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 420 transitions. Word has length 126 [2024-10-14 13:54:30,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:54:30,591 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 420 transitions. [2024-10-14 13:54:30,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:54:30,591 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 420 transitions. [2024-10-14 13:54:30,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-14 13:54:30,597 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:54:30,597 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:30,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 13:54:30,598 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:54:30,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:54:30,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1259970401, now seen corresponding path program 1 times [2024-10-14 13:54:30,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:54:30,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615794056] [2024-10-14 13:54:30,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:54:30,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:54:30,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:31,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:54:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:31,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:54:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:31,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:54:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:31,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:54:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:31,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:54:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:31,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:54:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:31,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:54:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:31,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:54:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:31,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:54:31,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:31,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:54:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:31,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:54:31,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:31,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:54:31,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:31,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:54:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:31,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:54:31,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:31,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:54:31,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:31,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:54:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:31,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:54:31,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:31,445 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:54:31,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:54:31,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615794056] [2024-10-14 13:54:31,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615794056] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:54:31,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:54:31,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 13:54:31,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354776131] [2024-10-14 13:54:31,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:54:31,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 13:54:31,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:54:31,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 13:54:31,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:54:31,449 INFO L87 Difference]: Start difference. First operand 287 states and 420 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:54:31,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:54:31,884 INFO L93 Difference]: Finished difference Result 565 states and 817 transitions. [2024-10-14 13:54:31,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 13:54:31,886 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 126 [2024-10-14 13:54:31,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:54:31,894 INFO L225 Difference]: With dead ends: 565 [2024-10-14 13:54:31,895 INFO L226 Difference]: Without dead ends: 419 [2024-10-14 13:54:31,899 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 13:54:31,901 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 143 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 13:54:31,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 377 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 13:54:31,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2024-10-14 13:54:31,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 205. [2024-10-14 13:54:31,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 166 states have (on average 1.3493975903614457) internal successors, (224), 166 states have internal predecessors, (224), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-14 13:54:31,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 292 transitions. [2024-10-14 13:54:31,945 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 292 transitions. Word has length 126 [2024-10-14 13:54:31,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:54:31,946 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 292 transitions. [2024-10-14 13:54:31,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:54:31,946 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 292 transitions. [2024-10-14 13:54:31,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-14 13:54:31,950 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:54:31,950 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:31,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 13:54:31,950 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:54:31,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:54:31,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1694534913, now seen corresponding path program 1 times [2024-10-14 13:54:31,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:54:31,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932429329] [2024-10-14 13:54:31,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:54:31,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:54:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:33,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:54:33,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:33,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:54:33,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:33,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:54:33,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:33,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:54:33,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:33,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:54:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:33,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:54:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:33,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:54:33,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:33,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:54:33,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:33,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:54:33,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:33,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:54:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:33,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:54:33,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:33,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:54:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:33,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:54:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:33,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:54:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:33,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:54:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:33,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:54:33,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:33,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:54:33,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:33,228 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:54:33,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:54:33,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932429329] [2024-10-14 13:54:33,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932429329] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:54:33,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:54:33,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:54:33,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677425524] [2024-10-14 13:54:33,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:54:33,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:54:33,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:54:33,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:54:33,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:54:33,233 INFO L87 Difference]: Start difference. First operand 205 states and 292 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:54:33,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:54:33,479 INFO L93 Difference]: Finished difference Result 359 states and 510 transitions. [2024-10-14 13:54:33,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:54:33,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 127 [2024-10-14 13:54:33,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:54:33,482 INFO L225 Difference]: With dead ends: 359 [2024-10-14 13:54:33,482 INFO L226 Difference]: Without dead ends: 254 [2024-10-14 13:54:33,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 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 13:54:33,483 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 52 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:54:33,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 434 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:54:33,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-10-14 13:54:33,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 251. [2024-10-14 13:54:33,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 209 states have (on average 1.3636363636363635) internal successors, (285), 210 states have internal predecessors, (285), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-14 13:54:33,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 357 transitions. [2024-10-14 13:54:33,529 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 357 transitions. Word has length 127 [2024-10-14 13:54:33,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:54:33,531 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 357 transitions. [2024-10-14 13:54:33,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:54:33,531 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 357 transitions. [2024-10-14 13:54:33,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-14 13:54:33,533 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:54:33,533 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:33,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 13:54:33,534 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:54:33,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:54:33,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1086791388, now seen corresponding path program 1 times [2024-10-14 13:54:33,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:54:33,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903397085] [2024-10-14 13:54:33,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:54:33,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:54:33,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:34,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:54:34,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:34,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:54:34,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:34,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:54:34,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:34,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:54:34,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:34,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:54:34,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:34,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:54:34,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:34,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:54:34,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:34,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:54:34,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:34,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:54:34,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:34,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:54:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:34,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:54:34,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:34,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:54:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:34,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:54:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:34,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:54:34,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:34,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:54:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:34,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:54:34,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:34,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:54:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:34,269 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:54:34,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:54:34,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903397085] [2024-10-14 13:54:34,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903397085] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:54:34,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:54:34,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 13:54:34,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569024211] [2024-10-14 13:54:34,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:54:34,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 13:54:34,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:54:34,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 13:54:34,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:54:34,272 INFO L87 Difference]: Start difference. First operand 251 states and 357 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:54:34,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:54:34,511 INFO L93 Difference]: Finished difference Result 507 states and 720 transitions. [2024-10-14 13:54:34,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 13:54:34,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 128 [2024-10-14 13:54:34,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:54:34,515 INFO L225 Difference]: With dead ends: 507 [2024-10-14 13:54:34,515 INFO L226 Difference]: Without dead ends: 257 [2024-10-14 13:54:34,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:54:34,520 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 69 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:54:34,521 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 283 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:54:34,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2024-10-14 13:54:34,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 251. [2024-10-14 13:54:34,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 209 states have (on average 1.3588516746411483) internal successors, (284), 210 states have internal predecessors, (284), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-14 13:54:34,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 356 transitions. [2024-10-14 13:54:34,543 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 356 transitions. Word has length 128 [2024-10-14 13:54:34,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:54:34,544 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 356 transitions. [2024-10-14 13:54:34,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:54:34,544 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 356 transitions. [2024-10-14 13:54:34,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-14 13:54:34,545 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:54:34,546 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:34,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 13:54:34,546 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:54:34,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:54:34,547 INFO L85 PathProgramCache]: Analyzing trace with hash -409325284, now seen corresponding path program 1 times [2024-10-14 13:54:34,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:54:34,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067705532] [2024-10-14 13:54:34,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:54:34,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:54:34,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:35,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:54:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:35,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:54:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:35,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:54:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:35,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:54:35,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:35,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:54:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:35,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:54:35,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:35,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:54:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:35,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:54:35,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:35,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:54:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:35,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:54:35,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:35,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:54:35,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:35,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:54:35,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:35,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:54:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:35,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:54:35,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:35,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:54:35,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:35,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:54:35,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:35,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:54:35,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:35,206 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:54:35,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:54:35,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067705532] [2024-10-14 13:54:35,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067705532] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:54:35,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:54:35,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 13:54:35,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358028645] [2024-10-14 13:54:35,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:54:35,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 13:54:35,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:54:35,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 13:54:35,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:54:35,211 INFO L87 Difference]: Start difference. First operand 251 states and 356 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:54:35,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:54:35,697 INFO L93 Difference]: Finished difference Result 507 states and 718 transitions. [2024-10-14 13:54:35,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 13:54:35,698 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 129 [2024-10-14 13:54:35,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:54:35,700 INFO L225 Difference]: With dead ends: 507 [2024-10-14 13:54:35,702 INFO L226 Difference]: Without dead ends: 356 [2024-10-14 13:54:35,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 13:54:35,704 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 100 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 13:54:35,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 379 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 13:54:35,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-10-14 13:54:35,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 350. [2024-10-14 13:54:35,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 288 states have (on average 1.3472222222222223) internal successors, (388), 289 states have internal predecessors, (388), 53 states have call successors, (53), 8 states have call predecessors, (53), 8 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-10-14 13:54:35,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 494 transitions. [2024-10-14 13:54:35,733 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 494 transitions. Word has length 129 [2024-10-14 13:54:35,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:54:35,733 INFO L471 AbstractCegarLoop]: Abstraction has 350 states and 494 transitions. [2024-10-14 13:54:35,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:54:35,734 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 494 transitions. [2024-10-14 13:54:35,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-14 13:54:35,735 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:54:35,735 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:35,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 13:54:35,736 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:54:35,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:54:35,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1311491078, now seen corresponding path program 1 times [2024-10-14 13:54:35,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:54:35,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539070012] [2024-10-14 13:54:35,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:54:35,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:54:35,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:54:36,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:54:36,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:54:36,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:54:36,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:54:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:54:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:54:36,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:54:36,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:54:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:54:36,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:54:36,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:54:36,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:54:36,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:54:36,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:54:36,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:54:36,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:54:36,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,091 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:54:36,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:54:36,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539070012] [2024-10-14 13:54:36,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539070012] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:54:36,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:54:36,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 13:54:36,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366412687] [2024-10-14 13:54:36,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:54:36,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 13:54:36,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:54:36,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 13:54:36,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:54:36,093 INFO L87 Difference]: Start difference. First operand 350 states and 494 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:54:36,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:54:36,546 INFO L93 Difference]: Finished difference Result 588 states and 828 transitions. [2024-10-14 13:54:36,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 13:54:36,547 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 129 [2024-10-14 13:54:36,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:54:36,549 INFO L225 Difference]: With dead ends: 588 [2024-10-14 13:54:36,549 INFO L226 Difference]: Without dead ends: 312 [2024-10-14 13:54:36,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 13:54:36,550 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 98 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 13:54:36,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 463 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 13:54:36,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2024-10-14 13:54:36,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 207. [2024-10-14 13:54:36,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 167 states have (on average 1.311377245508982) internal successors, (219), 167 states have internal predecessors, (219), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-14 13:54:36,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 287 transitions. [2024-10-14 13:54:36,569 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 287 transitions. Word has length 129 [2024-10-14 13:54:36,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:54:36,570 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 287 transitions. [2024-10-14 13:54:36,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:54:36,570 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 287 transitions. [2024-10-14 13:54:36,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-14 13:54:36,571 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:54:36,571 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:36,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 13:54:36,572 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:54:36,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:54:36,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1903195779, now seen corresponding path program 1 times [2024-10-14 13:54:36,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:54:36,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354788391] [2024-10-14 13:54:36,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:54:36,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:54:36,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:54:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:54:36,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:54:36,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:54:36,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:54:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:54:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:54:36,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:54:36,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:54:36,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:54:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:54:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:54:36,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:54:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:54:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:54:36,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:54:36,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:54:36,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:36,649 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:54:36,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:54:36,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354788391] [2024-10-14 13:54:36,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354788391] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:54:36,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:54:36,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 13:54:36,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821764468] [2024-10-14 13:54:36,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:54:36,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 13:54:36,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:54:36,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 13:54:36,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 13:54:36,652 INFO L87 Difference]: Start difference. First operand 207 states and 287 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:54:36,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:54:36,682 INFO L93 Difference]: Finished difference Result 415 states and 577 transitions. [2024-10-14 13:54:36,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 13:54:36,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 130 [2024-10-14 13:54:36,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:54:36,684 INFO L225 Difference]: With dead ends: 415 [2024-10-14 13:54:36,684 INFO L226 Difference]: Without dead ends: 209 [2024-10-14 13:54:36,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 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 13:54:36,685 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:54:36,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 233 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:54:36,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-10-14 13:54:36,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2024-10-14 13:54:36,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 169 states have (on average 1.3076923076923077) internal successors, (221), 169 states have internal predecessors, (221), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-14 13:54:36,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 289 transitions. [2024-10-14 13:54:36,705 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 289 transitions. Word has length 130 [2024-10-14 13:54:36,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:54:36,705 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 289 transitions. [2024-10-14 13:54:36,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:54:36,705 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 289 transitions. [2024-10-14 13:54:36,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-14 13:54:36,707 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:54:36,708 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:36,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 13:54:36,709 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:54:36,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:54:36,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1711713147, now seen corresponding path program 1 times [2024-10-14 13:54:36,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:54:36,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072697684] [2024-10-14 13:54:36,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:54:36,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:54:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:37,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:54:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:37,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:54:37,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:37,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:54:37,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:37,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:54:37,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:37,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:54:37,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:37,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:54:37,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:37,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:54:37,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:37,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:54:37,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:37,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:54:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:37,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:54:37,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:37,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:54:37,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:37,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:54:37,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:37,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:54:37,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:37,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:54:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:37,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:54:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:37,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:54:37,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:37,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:54:37,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:37,864 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:54:37,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:54:37,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072697684] [2024-10-14 13:54:37,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072697684] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:54:37,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:54:37,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 13:54:37,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891004791] [2024-10-14 13:54:37,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:54:37,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 13:54:37,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:54:37,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 13:54:37,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:54:37,867 INFO L87 Difference]: Start difference. First operand 209 states and 289 transitions. Second operand has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:54:38,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:54:38,443 INFO L93 Difference]: Finished difference Result 543 states and 747 transitions. [2024-10-14 13:54:38,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 13:54:38,444 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 130 [2024-10-14 13:54:38,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:54:38,446 INFO L225 Difference]: With dead ends: 543 [2024-10-14 13:54:38,446 INFO L226 Difference]: Without dead ends: 335 [2024-10-14 13:54:38,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-14 13:54:38,448 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 55 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 13:54:38,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 451 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 13:54:38,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-10-14 13:54:38,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 304. [2024-10-14 13:54:38,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 261 states have (on average 1.318007662835249) internal successors, (344), 262 states have internal predecessors, (344), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-14 13:54:38,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 416 transitions. [2024-10-14 13:54:38,474 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 416 transitions. Word has length 130 [2024-10-14 13:54:38,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:54:38,475 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 416 transitions. [2024-10-14 13:54:38,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:54:38,475 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 416 transitions. [2024-10-14 13:54:38,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-14 13:54:38,476 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:54:38,477 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:38,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 13:54:38,477 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:54:38,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:54:38,478 INFO L85 PathProgramCache]: Analyzing trace with hash -73426071, now seen corresponding path program 1 times [2024-10-14 13:54:38,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:54:38,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397937043] [2024-10-14 13:54:38,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:54:38,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:54:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:39,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:54:39,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:39,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:54:39,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:39,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:54:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:39,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:54:39,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:39,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:54:39,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:39,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:54:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:39,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:54:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:39,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:54:39,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:39,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:54:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:39,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:54:39,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:39,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:54:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:39,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:54:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:39,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:54:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:39,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:54:39,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:39,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:54:39,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:39,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:54:39,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:39,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:54:39,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:39,864 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:54:39,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:54:39,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397937043] [2024-10-14 13:54:39,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397937043] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:54:39,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:54:39,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 13:54:39,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202072276] [2024-10-14 13:54:39,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:54:39,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 13:54:39,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:54:39,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 13:54:39,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 13:54:39,867 INFO L87 Difference]: Start difference. First operand 304 states and 416 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:54:40,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:54:40,364 INFO L93 Difference]: Finished difference Result 700 states and 959 transitions. [2024-10-14 13:54:40,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 13:54:40,365 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 130 [2024-10-14 13:54:40,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:54:40,367 INFO L225 Difference]: With dead ends: 700 [2024-10-14 13:54:40,367 INFO L226 Difference]: Without dead ends: 397 [2024-10-14 13:54:40,369 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-14 13:54:40,370 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 45 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 13:54:40,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 720 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 13:54:40,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-10-14 13:54:40,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 338. [2024-10-14 13:54:40,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 295 states have (on average 1.3152542372881355) internal successors, (388), 296 states have internal predecessors, (388), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-14 13:54:40,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 460 transitions. [2024-10-14 13:54:40,394 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 460 transitions. Word has length 130 [2024-10-14 13:54:40,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:54:40,394 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 460 transitions. [2024-10-14 13:54:40,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:54:40,395 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 460 transitions. [2024-10-14 13:54:40,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-14 13:54:40,396 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:54:40,396 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:40,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 13:54:40,397 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:54:40,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:54:40,397 INFO L85 PathProgramCache]: Analyzing trace with hash 627638507, now seen corresponding path program 1 times [2024-10-14 13:54:40,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:54:40,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194634257] [2024-10-14 13:54:40,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:54:40,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:54:40,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:41,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:54:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:41,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:54:41,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:41,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:54:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:41,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:54:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:41,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:54:41,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:41,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:54:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:41,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:54:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:41,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:54:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:41,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:54:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:41,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:54:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:41,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:54:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:41,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:54:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:41,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:54:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:41,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:54:41,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:41,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:54:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:41,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:54:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:41,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:54:41,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:41,301 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:54:41,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:54:41,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194634257] [2024-10-14 13:54:41,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194634257] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:54:41,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:54:41,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 13:54:41,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728875362] [2024-10-14 13:54:41,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:54:41,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 13:54:41,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:54:41,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 13:54:41,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:54:41,304 INFO L87 Difference]: Start difference. First operand 338 states and 460 transitions. Second operand has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:54:41,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:54:41,711 INFO L93 Difference]: Finished difference Result 741 states and 1007 transitions. [2024-10-14 13:54:41,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 13:54:41,712 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 130 [2024-10-14 13:54:41,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:54:41,714 INFO L225 Difference]: With dead ends: 741 [2024-10-14 13:54:41,714 INFO L226 Difference]: Without dead ends: 404 [2024-10-14 13:54:41,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:54:41,716 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 48 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 13:54:41,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 580 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 13:54:41,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-10-14 13:54:41,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 342. [2024-10-14 13:54:41,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 299 states have (on average 1.3110367892976589) internal successors, (392), 300 states have internal predecessors, (392), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-14 13:54:41,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 464 transitions. [2024-10-14 13:54:41,739 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 464 transitions. Word has length 130 [2024-10-14 13:54:41,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:54:41,740 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 464 transitions. [2024-10-14 13:54:41,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:54:41,740 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 464 transitions. [2024-10-14 13:54:41,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-14 13:54:41,741 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:54:41,742 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:41,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 13:54:41,742 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:54:41,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:54:41,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1762369813, now seen corresponding path program 1 times [2024-10-14 13:54:41,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:54:41,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768008122] [2024-10-14 13:54:41,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:54:41,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:54:41,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:42,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:54:42,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:42,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:54:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:42,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:54:42,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:42,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:54:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:42,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:54:42,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:42,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:54:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:42,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:54:42,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:42,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:54:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:42,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:54:42,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:42,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:54:42,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:42,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:54:42,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:42,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:54:42,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:42,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:54:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:42,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:54:42,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:42,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:54:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:42,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:54:42,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:42,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:54:42,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:42,668 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:54:42,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:54:42,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768008122] [2024-10-14 13:54:42,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768008122] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:54:42,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:54:42,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 13:54:42,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541420004] [2024-10-14 13:54:42,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:54:42,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 13:54:42,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:54:42,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 13:54:42,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:54:42,671 INFO L87 Difference]: Start difference. First operand 342 states and 464 transitions. Second operand has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:54:43,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:54:43,030 INFO L93 Difference]: Finished difference Result 722 states and 976 transitions. [2024-10-14 13:54:43,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 13:54:43,031 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 130 [2024-10-14 13:54:43,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:54:43,034 INFO L225 Difference]: With dead ends: 722 [2024-10-14 13:54:43,034 INFO L226 Difference]: Without dead ends: 381 [2024-10-14 13:54:43,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:54:43,037 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 49 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:54:43,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 489 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:54:43,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-10-14 13:54:43,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 313. [2024-10-14 13:54:43,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 272 states have (on average 1.2941176470588236) internal successors, (352), 272 states have internal predecessors, (352), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-14 13:54:43,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 420 transitions. [2024-10-14 13:54:43,064 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 420 transitions. Word has length 130 [2024-10-14 13:54:43,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:54:43,064 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 420 transitions. [2024-10-14 13:54:43,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:54:43,064 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 420 transitions. [2024-10-14 13:54:43,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-14 13:54:43,067 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:54:43,067 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:43,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 13:54:43,068 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:54:43,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:54:43,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1061305235, now seen corresponding path program 1 times [2024-10-14 13:54:43,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:54:43,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796306243] [2024-10-14 13:54:43,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:54:43,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:54:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:44,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:54:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:44,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:54:44,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:44,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:54:44,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:44,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:54:44,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:44,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:54:44,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:44,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:54:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:44,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:54:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:44,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:54:44,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:44,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:54:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:44,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:54:44,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:44,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:54:44,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:44,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:54:44,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:44,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:54:44,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:44,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:54:44,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:44,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:54:44,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:44,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:54:44,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:44,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:54:44,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:44,036 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:54:44,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:54:44,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796306243] [2024-10-14 13:54:44,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796306243] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:54:44,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:54:44,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 13:54:44,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192359094] [2024-10-14 13:54:44,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:54:44,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 13:54:44,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:54:44,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 13:54:44,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 13:54:44,039 INFO L87 Difference]: Start difference. First operand 313 states and 420 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:54:44,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:54:44,577 INFO L93 Difference]: Finished difference Result 656 states and 882 transitions. [2024-10-14 13:54:44,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 13:54:44,578 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 130 [2024-10-14 13:54:44,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:54:44,580 INFO L225 Difference]: With dead ends: 656 [2024-10-14 13:54:44,580 INFO L226 Difference]: Without dead ends: 344 [2024-10-14 13:54:44,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-10-14 13:54:44,582 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 43 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 13:54:44,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 885 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 13:54:44,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-10-14 13:54:44,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 307. [2024-10-14 13:54:44,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 266 states have (on average 1.2932330827067668) internal successors, (344), 266 states have internal predecessors, (344), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-14 13:54:44,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 412 transitions. [2024-10-14 13:54:44,603 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 412 transitions. Word has length 130 [2024-10-14 13:54:44,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:54:44,603 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 412 transitions. [2024-10-14 13:54:44,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:54:44,604 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 412 transitions. [2024-10-14 13:54:44,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-14 13:54:44,605 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:54:44,606 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:44,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 13:54:44,606 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:54:44,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:54:44,607 INFO L85 PathProgramCache]: Analyzing trace with hash 198970913, now seen corresponding path program 1 times [2024-10-14 13:54:44,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:54:44,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789889088] [2024-10-14 13:54:44,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:54:44,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:54:44,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:45,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:54:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:45,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:54:45,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:45,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:54:45,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:45,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:54:45,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:45,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:54:45,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:45,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:54:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:45,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:54:45,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:45,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:54:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:45,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:54:45,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:45,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:54:45,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:45,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:54:45,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:45,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:54:45,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:45,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:54:45,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:45,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:54:45,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:45,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:54:45,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:45,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:54:45,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:45,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:54:45,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:45,494 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:54:45,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:54:45,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789889088] [2024-10-14 13:54:45,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789889088] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:54:45,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:54:45,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 13:54:45,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963601199] [2024-10-14 13:54:45,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:54:45,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 13:54:45,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:54:45,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 13:54:45,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 13:54:45,496 INFO L87 Difference]: Start difference. First operand 307 states and 412 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:54:46,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:54:46,128 INFO L93 Difference]: Finished difference Result 795 states and 1063 transitions. [2024-10-14 13:54:46,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 13:54:46,129 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 130 [2024-10-14 13:54:46,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:54:46,131 INFO L225 Difference]: With dead ends: 795 [2024-10-14 13:54:46,131 INFO L226 Difference]: Without dead ends: 489 [2024-10-14 13:54:46,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-10-14 13:54:46,133 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 147 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 13:54:46,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 672 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 13:54:46,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2024-10-14 13:54:46,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 327. [2024-10-14 13:54:46,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 286 states have (on average 1.2867132867132867) internal successors, (368), 286 states have internal predecessors, (368), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-14 13:54:46,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 436 transitions. [2024-10-14 13:54:46,157 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 436 transitions. Word has length 130 [2024-10-14 13:54:46,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:54:46,157 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 436 transitions. [2024-10-14 13:54:46,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:54:46,157 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 436 transitions. [2024-10-14 13:54:46,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-14 13:54:46,159 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:54:46,159 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:46,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 13:54:46,160 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:54:46,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:54:46,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1389376989, now seen corresponding path program 1 times [2024-10-14 13:54:46,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:54:46,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493540334] [2024-10-14 13:54:46,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:54:46,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:54:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:46,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:54:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:46,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:54:46,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:46,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:54:46,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:46,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:54:46,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:46,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:54:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:46,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:54:46,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:46,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:54:46,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:46,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:54:46,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:46,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:54:46,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:46,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:54:46,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:46,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:54:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:46,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:54:46,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:46,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:54:46,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:46,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:54:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:46,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:54:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:46,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:54:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:46,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:54:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:46,753 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:54:46,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:54:46,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493540334] [2024-10-14 13:54:46,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493540334] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:54:46,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:54:46,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 13:54:46,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712079933] [2024-10-14 13:54:46,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:54:46,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 13:54:46,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:54:46,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 13:54:46,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:54:46,758 INFO L87 Difference]: Start difference. First operand 327 states and 436 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:54:47,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:54:47,166 INFO L93 Difference]: Finished difference Result 761 states and 1013 transitions. [2024-10-14 13:54:47,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 13:54:47,167 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 130 [2024-10-14 13:54:47,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:54:47,169 INFO L225 Difference]: With dead ends: 761 [2024-10-14 13:54:47,170 INFO L226 Difference]: Without dead ends: 435 [2024-10-14 13:54:47,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 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 13:54:47,173 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 69 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 13:54:47,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 372 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 13:54:47,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2024-10-14 13:54:47,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 343. [2024-10-14 13:54:47,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 302 states have (on average 1.2748344370860927) internal successors, (385), 302 states have internal predecessors, (385), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-14 13:54:47,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 453 transitions. [2024-10-14 13:54:47,197 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 453 transitions. Word has length 130 [2024-10-14 13:54:47,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:54:47,198 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 453 transitions. [2024-10-14 13:54:47,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:54:47,198 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 453 transitions. [2024-10-14 13:54:47,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-14 13:54:47,199 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:54:47,199 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:47,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 13:54:47,200 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:54:47,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:54:47,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1782403999, now seen corresponding path program 1 times [2024-10-14 13:54:47,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:54:47,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102096639] [2024-10-14 13:54:47,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:54:47,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:54:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:47,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:54:47,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:47,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:54:47,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:47,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:54:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:47,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:54:47,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:47,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:54:47,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:47,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:54:47,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:47,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:54:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:47,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:54:47,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:47,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:54:47,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:47,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:54:47,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:47,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:54:47,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:47,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:54:47,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:47,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:54:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:47,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:54:47,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:47,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:54:47,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:47,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:54:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:47,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:54:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:47,671 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:54:47,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:54:47,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102096639] [2024-10-14 13:54:47,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102096639] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:54:47,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:54:47,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 13:54:47,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161557499] [2024-10-14 13:54:47,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:54:47,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 13:54:47,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:54:47,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 13:54:47,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:54:47,673 INFO L87 Difference]: Start difference. First operand 343 states and 453 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:54:48,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:54:48,072 INFO L93 Difference]: Finished difference Result 785 states and 1032 transitions. [2024-10-14 13:54:48,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 13:54:48,073 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 130 [2024-10-14 13:54:48,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:54:48,075 INFO L225 Difference]: With dead ends: 785 [2024-10-14 13:54:48,075 INFO L226 Difference]: Without dead ends: 443 [2024-10-14 13:54:48,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 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 13:54:48,077 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 70 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:54:48,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 500 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:54:48,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-10-14 13:54:48,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 439. [2024-10-14 13:54:48,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 372 states have (on average 1.2553763440860215) internal successors, (467), 374 states have internal predecessors, (467), 54 states have call successors, (54), 12 states have call predecessors, (54), 12 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-14 13:54:48,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 575 transitions. [2024-10-14 13:54:48,110 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 575 transitions. Word has length 130 [2024-10-14 13:54:48,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:54:48,110 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 575 transitions. [2024-10-14 13:54:48,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:54:48,111 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 575 transitions. [2024-10-14 13:54:48,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-14 13:54:48,112 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:54:48,112 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:48,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 13:54:48,112 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:54:48,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:54:48,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1604353875, now seen corresponding path program 1 times [2024-10-14 13:54:48,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:54:48,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965712092] [2024-10-14 13:54:48,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:54:48,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:54:48,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:48,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:54:48,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:48,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:54:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:48,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:54:48,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:48,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:54:48,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:48,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:54:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:48,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:54:48,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:48,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:54:48,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:48,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:54:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:48,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:54:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:48,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:54:48,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:48,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:54:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:48,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:54:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:48,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:54:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:48,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:54:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:48,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:54:48,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:48,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:54:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:48,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:54:48,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:48,469 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:54:48,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:54:48,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965712092] [2024-10-14 13:54:48,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965712092] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:54:48,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:54:48,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 13:54:48,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026084275] [2024-10-14 13:54:48,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:54:48,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 13:54:48,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:54:48,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 13:54:48,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:54:48,471 INFO L87 Difference]: Start difference. First operand 439 states and 575 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:54:48,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:54:48,776 INFO L93 Difference]: Finished difference Result 1020 states and 1333 transitions. [2024-10-14 13:54:48,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 13:54:48,777 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-10-14 13:54:48,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:54:48,779 INFO L225 Difference]: With dead ends: 1020 [2024-10-14 13:54:48,780 INFO L226 Difference]: Without dead ends: 582 [2024-10-14 13:54:48,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:54:48,781 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 55 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:54:48,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 585 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:54:48,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2024-10-14 13:54:48,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 578. [2024-10-14 13:54:48,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 495 states have (on average 1.2484848484848485) internal successors, (618), 499 states have internal predecessors, (618), 66 states have call successors, (66), 16 states have call predecessors, (66), 16 states have return successors, (66), 62 states have call predecessors, (66), 66 states have call successors, (66) [2024-10-14 13:54:48,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 750 transitions. [2024-10-14 13:54:48,821 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 750 transitions. Word has length 134 [2024-10-14 13:54:48,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:54:48,821 INFO L471 AbstractCegarLoop]: Abstraction has 578 states and 750 transitions. [2024-10-14 13:54:48,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:54:48,822 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 750 transitions. [2024-10-14 13:54:48,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-14 13:54:48,823 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:54:48,823 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:48,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 13:54:48,824 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:54:48,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:54:48,824 INFO L85 PathProgramCache]: Analyzing trace with hash -420155260, now seen corresponding path program 1 times [2024-10-14 13:54:48,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:54:48,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495161488] [2024-10-14 13:54:48,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:54:48,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:54:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:49,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:54:49,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:49,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:54:49,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:49,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:54:49,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:49,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:54:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:49,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:54:49,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:49,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:54:49,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:49,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:54:49,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:49,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:54:49,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:49,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:54:49,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:49,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:54:49,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:49,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:54:49,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:49,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:54:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:49,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:54:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:49,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:54:49,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:49,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:54:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:49,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:54:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:49,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:54:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:49,776 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:54:49,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:54:49,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495161488] [2024-10-14 13:54:49,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495161488] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:54:49,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:54:49,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 13:54:49,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577539264] [2024-10-14 13:54:49,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:54:49,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 13:54:49,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:54:49,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 13:54:49,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-14 13:54:49,781 INFO L87 Difference]: Start difference. First operand 578 states and 750 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:54:50,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:54:50,959 INFO L93 Difference]: Finished difference Result 1474 states and 1900 transitions. [2024-10-14 13:54:50,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 13:54:50,960 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 134 [2024-10-14 13:54:50,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:54:50,964 INFO L225 Difference]: With dead ends: 1474 [2024-10-14 13:54:50,965 INFO L226 Difference]: Without dead ends: 897 [2024-10-14 13:54:50,966 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-10-14 13:54:50,967 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 307 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 13:54:50,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 366 Invalid, 834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 13:54:50,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2024-10-14 13:54:51,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 796. [2024-10-14 13:54:51,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 697 states have (on average 1.2539454806312769) internal successors, (874), 703 states have internal predecessors, (874), 78 states have call successors, (78), 20 states have call predecessors, (78), 20 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-10-14 13:54:51,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1030 transitions. [2024-10-14 13:54:51,051 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1030 transitions. Word has length 134 [2024-10-14 13:54:51,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:54:51,052 INFO L471 AbstractCegarLoop]: Abstraction has 796 states and 1030 transitions. [2024-10-14 13:54:51,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:54:51,052 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1030 transitions. [2024-10-14 13:54:51,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-14 13:54:51,055 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:54:51,055 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:51,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 13:54:51,056 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:54:51,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:54:51,056 INFO L85 PathProgramCache]: Analyzing trace with hash 690676371, now seen corresponding path program 1 times [2024-10-14 13:54:51,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:54:51,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90319242] [2024-10-14 13:54:51,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:54:51,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:54:51,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:51,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:54:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:51,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:54:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:51,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:54:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:51,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:54:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:51,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:54:51,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:51,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:54:51,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:51,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:54:51,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:51,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:54:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:51,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:54:51,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:51,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:54:51,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:51,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:54:51,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:51,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:54:51,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:51,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:54:51,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:51,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:54:51,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:51,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:54:51,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:51,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:54:51,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:51,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:54:51,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:51,299 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:54:51,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:54:51,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90319242] [2024-10-14 13:54:51,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90319242] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:54:51,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:54:51,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:54:51,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487390042] [2024-10-14 13:54:51,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:54:51,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:54:51,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:54:51,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:54:51,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:54:51,301 INFO L87 Difference]: Start difference. First operand 796 states and 1030 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:54:51,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:54:51,571 INFO L93 Difference]: Finished difference Result 1777 states and 2299 transitions. [2024-10-14 13:54:51,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:54:51,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-10-14 13:54:51,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:54:51,576 INFO L225 Difference]: With dead ends: 1777 [2024-10-14 13:54:51,577 INFO L226 Difference]: Without dead ends: 982 [2024-10-14 13:54:51,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:54:51,580 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 81 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:54:51,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 278 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:54:51,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2024-10-14 13:54:51,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 815. [2024-10-14 13:54:51,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 716 states have (on average 1.2458100558659218) internal successors, (892), 722 states have internal predecessors, (892), 78 states have call successors, (78), 20 states have call predecessors, (78), 20 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-10-14 13:54:51,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1048 transitions. [2024-10-14 13:54:51,647 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1048 transitions. Word has length 134 [2024-10-14 13:54:51,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:54:51,648 INFO L471 AbstractCegarLoop]: Abstraction has 815 states and 1048 transitions. [2024-10-14 13:54:51,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:54:51,648 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1048 transitions. [2024-10-14 13:54:51,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-14 13:54:51,651 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:54:51,651 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:51,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 13:54:51,651 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:54:51,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:54:51,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1874874986, now seen corresponding path program 1 times [2024-10-14 13:54:51,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:54:51,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786802743] [2024-10-14 13:54:51,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:54:51,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:54:51,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:52,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:54:52,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:52,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:54:52,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:52,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:54:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:52,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:54:52,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:52,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:54:52,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:52,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:54:52,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:52,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:54:52,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:52,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:54:52,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:52,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:54:52,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:52,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:54:52,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:52,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:54:52,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:52,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:54:52,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:52,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:54:52,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:52,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:54:52,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:52,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:54:52,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:52,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:54:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:52,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:54:52,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:52,196 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:54:52,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:54:52,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786802743] [2024-10-14 13:54:52,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786802743] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:54:52,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:54:52,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 13:54:52,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488649621] [2024-10-14 13:54:52,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:54:52,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 13:54:52,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:54:52,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 13:54:52,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:54:52,199 INFO L87 Difference]: Start difference. First operand 815 states and 1048 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:54:52,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:54:52,619 INFO L93 Difference]: Finished difference Result 1829 states and 2348 transitions. [2024-10-14 13:54:52,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 13:54:52,620 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 134 [2024-10-14 13:54:52,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:54:52,625 INFO L225 Difference]: With dead ends: 1829 [2024-10-14 13:54:52,625 INFO L226 Difference]: Without dead ends: 1015 [2024-10-14 13:54:52,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 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 13:54:52,627 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 69 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:54:52,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 380 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:54:52,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2024-10-14 13:54:52,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 819. [2024-10-14 13:54:52,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 720 states have (on average 1.2444444444444445) internal successors, (896), 726 states have internal predecessors, (896), 78 states have call successors, (78), 20 states have call predecessors, (78), 20 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-10-14 13:54:52,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1052 transitions. [2024-10-14 13:54:52,698 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1052 transitions. Word has length 134 [2024-10-14 13:54:52,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:54:52,698 INFO L471 AbstractCegarLoop]: Abstraction has 819 states and 1052 transitions. [2024-10-14 13:54:52,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:54:52,699 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1052 transitions. [2024-10-14 13:54:52,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-14 13:54:52,700 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:54:52,700 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:52,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 13:54:52,701 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:54:52,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:54:52,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1833286296, now seen corresponding path program 1 times [2024-10-14 13:54:52,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:54:52,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565920425] [2024-10-14 13:54:52,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:54:52,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:54:52,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:53,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:54:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:53,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:54:53,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:53,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:54:53,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:53,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:54:53,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:53,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:54:53,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:53,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:54:53,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:53,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:54:53,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:53,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:54:53,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:53,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:54:53,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:53,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:54:53,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:53,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:54:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:53,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:54:53,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:53,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:54:53,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:53,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:54:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:53,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:54:53,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:53,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:54:53,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:53,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:54:53,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:53,223 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 12 proven. 36 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-10-14 13:54:53,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:54:53,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565920425] [2024-10-14 13:54:53,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565920425] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 13:54:53,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284697304] [2024-10-14 13:54:53,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:54:53,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 13:54:53,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 13:54:53,226 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 13:54:53,243 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 13:54:53,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:53,429 INFO L255 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-14 13:54:53,442 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 13:54:53,544 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 29 treesize of output 13 [2024-10-14 13:54:53,575 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 29 treesize of output 13 [2024-10-14 13:54:53,601 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 29 treesize of output 13 [2024-10-14 13:54:53,629 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 29 treesize of output 13 [2024-10-14 13:54:53,657 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 29 treesize of output 13 [2024-10-14 13:54:53,701 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 13:54:53,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 42 [2024-10-14 13:54:53,730 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 13:54:53,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 12 [2024-10-14 13:54:53,735 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 216 proven. 36 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-10-14 13:54:53,735 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 13:54:53,948 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 12 proven. 36 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-10-14 13:54:53,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284697304] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 13:54:53,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 13:54:53,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7] total 14 [2024-10-14 13:54:53,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827237385] [2024-10-14 13:54:53,949 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 13:54:53,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 13:54:53,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:54:53,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 13:54:53,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-10-14 13:54:53,952 INFO L87 Difference]: Start difference. First operand 819 states and 1052 transitions. Second operand has 14 states, 11 states have (on average 7.636363636363637) internal successors, (84), 14 states have internal predecessors, (84), 6 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (43), 3 states have call predecessors, (43), 6 states have call successors, (43) [2024-10-14 13:54:54,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:54:54,596 INFO L93 Difference]: Finished difference Result 1783 states and 2268 transitions. [2024-10-14 13:54:54,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 13:54:54,597 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 7.636363636363637) internal successors, (84), 14 states have internal predecessors, (84), 6 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (43), 3 states have call predecessors, (43), 6 states have call successors, (43) Word has length 134 [2024-10-14 13:54:54,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:54:54,602 INFO L225 Difference]: With dead ends: 1783 [2024-10-14 13:54:54,602 INFO L226 Difference]: Without dead ends: 965 [2024-10-14 13:54:54,604 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2024-10-14 13:54:54,605 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 171 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 13:54:54,605 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 189 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 13:54:54,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2024-10-14 13:54:54,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 831. [2024-10-14 13:54:54,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 724 states have (on average 1.2320441988950277) internal successors, (892), 730 states have internal predecessors, (892), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-10-14 13:54:54,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1048 transitions. [2024-10-14 13:54:54,687 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1048 transitions. Word has length 134 [2024-10-14 13:54:54,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:54:54,687 INFO L471 AbstractCegarLoop]: Abstraction has 831 states and 1048 transitions. [2024-10-14 13:54:54,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 7.636363636363637) internal successors, (84), 14 states have internal predecessors, (84), 6 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (43), 3 states have call predecessors, (43), 6 states have call successors, (43) [2024-10-14 13:54:54,688 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1048 transitions. [2024-10-14 13:54:54,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-14 13:54:54,689 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:54:54,690 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:54,709 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 13:54:54,893 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,SelfDestructingSolverStorable21 [2024-10-14 13:54:54,894 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:54:54,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:54:54,894 INFO L85 PathProgramCache]: Analyzing trace with hash 2101018788, now seen corresponding path program 1 times [2024-10-14 13:54:54,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:54:54,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290653438] [2024-10-14 13:54:54,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:54:54,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:54:54,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:55,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:54:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:55,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:54:55,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:55,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:54:55,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:55,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:54:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:55,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:54:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:55,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:54:55,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:55,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:54:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:55,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:54:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:55,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:54:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:55,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:54:55,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:55,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:54:55,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:55,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:54:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:55,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:54:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:55,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:54:55,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:55,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:54:55,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:55,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:54:55,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:55,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:54:55,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:55,907 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:54:55,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:54:55,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290653438] [2024-10-14 13:54:55,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290653438] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:54:55,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:54:55,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 13:54:55,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817612962] [2024-10-14 13:54:55,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:54:55,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 13:54:55,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:54:55,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 13:54:55,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:54:55,909 INFO L87 Difference]: Start difference. First operand 831 states and 1048 transitions. Second operand has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:54:56,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:54:56,788 INFO L93 Difference]: Finished difference Result 1798 states and 2258 transitions. [2024-10-14 13:54:56,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 13:54:56,789 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 134 [2024-10-14 13:54:56,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:54:56,794 INFO L225 Difference]: With dead ends: 1798 [2024-10-14 13:54:56,794 INFO L226 Difference]: Without dead ends: 968 [2024-10-14 13:54:56,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-10-14 13:54:56,797 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 267 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 13:54:56,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 737 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 872 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 13:54:56,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2024-10-14 13:54:56,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 959. [2024-10-14 13:54:56,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 834 states have (on average 1.2266187050359711) internal successors, (1023), 843 states have internal predecessors, (1023), 90 states have call successors, (90), 34 states have call predecessors, (90), 34 states have return successors, (90), 81 states have call predecessors, (90), 90 states have call successors, (90) [2024-10-14 13:54:56,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1203 transitions. [2024-10-14 13:54:56,893 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1203 transitions. Word has length 134 [2024-10-14 13:54:56,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:54:56,893 INFO L471 AbstractCegarLoop]: Abstraction has 959 states and 1203 transitions. [2024-10-14 13:54:56,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:54:56,894 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1203 transitions. [2024-10-14 13:54:56,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-14 13:54:56,895 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:54:56,895 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:56,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 13:54:56,895 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:54:56,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:54:56,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1291672162, now seen corresponding path program 1 times [2024-10-14 13:54:56,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:54:56,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999951418] [2024-10-14 13:54:56,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:54:56,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:54:56,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:57,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:54:57,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:57,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:54:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:57,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:54:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:57,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:54:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:57,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:54:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:57,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:54:57,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:57,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:54:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:57,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:54:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:57,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:54:57,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:57,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:54:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:57,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:54:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:57,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:54:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:57,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:54:57,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:57,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:54:57,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:57,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:54:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:57,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:54:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:57,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:54:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:57,961 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:54:57,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:54:57,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999951418] [2024-10-14 13:54:57,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999951418] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:54:57,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:54:57,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 13:54:57,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889222001] [2024-10-14 13:54:57,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:54:57,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 13:54:57,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:54:57,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 13:54:57,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:54:57,964 INFO L87 Difference]: Start difference. First operand 959 states and 1203 transitions. Second operand has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:54:58,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:54:58,665 INFO L93 Difference]: Finished difference Result 1922 states and 2412 transitions. [2024-10-14 13:54:58,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 13:54:58,666 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 134 [2024-10-14 13:54:58,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:54:58,671 INFO L225 Difference]: With dead ends: 1922 [2024-10-14 13:54:58,671 INFO L226 Difference]: Without dead ends: 980 [2024-10-14 13:54:58,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-10-14 13:54:58,674 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 47 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 13:54:58,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 964 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 13:54:58,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2024-10-14 13:54:58,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 960. [2024-10-14 13:54:58,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 960 states, 835 states have (on average 1.2251497005988023) internal successors, (1023), 844 states have internal predecessors, (1023), 90 states have call successors, (90), 34 states have call predecessors, (90), 34 states have return successors, (90), 81 states have call predecessors, (90), 90 states have call successors, (90) [2024-10-14 13:54:58,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1203 transitions. [2024-10-14 13:54:58,780 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1203 transitions. Word has length 134 [2024-10-14 13:54:58,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:54:58,780 INFO L471 AbstractCegarLoop]: Abstraction has 960 states and 1203 transitions. [2024-10-14 13:54:58,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:54:58,781 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1203 transitions. [2024-10-14 13:54:58,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-14 13:54:58,783 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:54:58,783 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:58,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-14 13:54:58,784 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:54:58,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:54:58,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1771246682, now seen corresponding path program 1 times [2024-10-14 13:54:58,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:54:58,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754450525] [2024-10-14 13:54:58,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:54:58,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:54:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:59,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:54:59,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:59,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:54:59,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:59,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:54:59,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:59,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:54:59,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:59,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:54:59,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:59,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:54:59,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:59,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:54:59,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:59,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:54:59,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:59,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:54:59,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:59,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:54:59,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:59,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:54:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:59,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:54:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:59,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:54:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:59,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:54:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:59,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:54:59,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:59,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:54:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:59,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:54:59,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:54:59,386 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:54:59,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:54:59,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754450525] [2024-10-14 13:54:59,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754450525] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:54:59,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:54:59,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:54:59,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885768609] [2024-10-14 13:54:59,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:54:59,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:54:59,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:54:59,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:54:59,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:54:59,388 INFO L87 Difference]: Start difference. First operand 960 states and 1203 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:54:59,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:54:59,715 INFO L93 Difference]: Finished difference Result 1912 states and 2389 transitions. [2024-10-14 13:54:59,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:54:59,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-10-14 13:54:59,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:54:59,721 INFO L225 Difference]: With dead ends: 1912 [2024-10-14 13:54:59,721 INFO L226 Difference]: Without dead ends: 969 [2024-10-14 13:54:59,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:54:59,724 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 48 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:54:59,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 360 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:54:59,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2024-10-14 13:54:59,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 857. [2024-10-14 13:54:59,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 740 states have (on average 1.218918918918919) internal successors, (902), 747 states have internal predecessors, (902), 82 states have call successors, (82), 34 states have call predecessors, (82), 34 states have return successors, (82), 75 states have call predecessors, (82), 82 states have call successors, (82) [2024-10-14 13:54:59,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1066 transitions. [2024-10-14 13:54:59,806 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1066 transitions. Word has length 134 [2024-10-14 13:54:59,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:54:59,807 INFO L471 AbstractCegarLoop]: Abstraction has 857 states and 1066 transitions. [2024-10-14 13:54:59,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:54:59,807 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1066 transitions. [2024-10-14 13:54:59,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-14 13:54:59,808 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:54:59,808 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:54:59,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-14 13:54:59,808 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:54:59,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:54:59,809 INFO L85 PathProgramCache]: Analyzing trace with hash -803490713, now seen corresponding path program 1 times [2024-10-14 13:54:59,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:54:59,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843547049] [2024-10-14 13:54:59,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:54:59,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:54:59,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:00,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:55:00,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:00,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:55:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:00,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:55:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:00,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:55:00,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:00,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:55:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:00,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:55:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:00,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:55:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:00,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:55:00,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:00,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:55:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:00,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:55:00,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:00,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:55:00,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:00,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:55:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:00,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:55:00,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:00,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:55:00,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:00,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:55:00,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:00,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:55:00,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:00,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:55:00,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:00,487 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:55:00,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:55:00,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843547049] [2024-10-14 13:55:00,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843547049] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:55:00,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:55:00,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:55:00,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386801303] [2024-10-14 13:55:00,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:55:00,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:55:00,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:55:00,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:55:00,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:55:00,489 INFO L87 Difference]: Start difference. First operand 857 states and 1066 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:55:00,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:55:00,950 INFO L93 Difference]: Finished difference Result 1701 states and 2108 transitions. [2024-10-14 13:55:00,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:55:00,951 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-10-14 13:55:00,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:55:00,958 INFO L225 Difference]: With dead ends: 1701 [2024-10-14 13:55:00,959 INFO L226 Difference]: Without dead ends: 861 [2024-10-14 13:55:00,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:55:00,961 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 48 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 13:55:00,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 410 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 13:55:00,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2024-10-14 13:55:01,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 847. [2024-10-14 13:55:01,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 726 states have (on average 1.209366391184573) internal successors, (878), 733 states have internal predecessors, (878), 82 states have call successors, (82), 38 states have call predecessors, (82), 38 states have return successors, (82), 75 states have call predecessors, (82), 82 states have call successors, (82) [2024-10-14 13:55:01,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1042 transitions. [2024-10-14 13:55:01,050 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1042 transitions. Word has length 135 [2024-10-14 13:55:01,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:55:01,050 INFO L471 AbstractCegarLoop]: Abstraction has 847 states and 1042 transitions. [2024-10-14 13:55:01,050 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:55:01,051 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1042 transitions. [2024-10-14 13:55:01,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-14 13:55:01,052 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:55:01,052 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:55:01,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-14 13:55:01,052 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:55:01,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:55:01,053 INFO L85 PathProgramCache]: Analyzing trace with hash -584586431, now seen corresponding path program 1 times [2024-10-14 13:55:01,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:55:01,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243101133] [2024-10-14 13:55:01,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:55:01,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:55:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:01,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:55:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:01,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:55:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:01,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:55:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:01,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:55:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:01,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:55:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:01,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:55:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:01,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:55:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:01,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:55:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:01,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:55:01,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:01,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:55:01,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:01,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:55:01,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:01,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:55:01,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:01,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:55:01,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:01,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:55:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:01,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:55:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:01,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:55:01,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:01,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:55:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:01,268 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:55:01,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:55:01,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243101133] [2024-10-14 13:55:01,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243101133] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:55:01,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:55:01,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:55:01,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297591787] [2024-10-14 13:55:01,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:55:01,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:55:01,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:55:01,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:55:01,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:55:01,270 INFO L87 Difference]: Start difference. First operand 847 states and 1042 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:55:01,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:55:01,525 INFO L93 Difference]: Finished difference Result 1869 states and 2288 transitions. [2024-10-14 13:55:01,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:55:01,526 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-10-14 13:55:01,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:55:01,531 INFO L225 Difference]: With dead ends: 1869 [2024-10-14 13:55:01,531 INFO L226 Difference]: Without dead ends: 1039 [2024-10-14 13:55:01,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:55:01,533 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 42 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:55:01,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 377 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 13:55:01,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2024-10-14 13:55:01,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 887. [2024-10-14 13:55:01,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 766 states have (on average 1.2036553524804177) internal successors, (922), 773 states have internal predecessors, (922), 82 states have call successors, (82), 38 states have call predecessors, (82), 38 states have return successors, (82), 75 states have call predecessors, (82), 82 states have call successors, (82) [2024-10-14 13:55:01,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1086 transitions. [2024-10-14 13:55:01,627 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1086 transitions. Word has length 136 [2024-10-14 13:55:01,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:55:01,628 INFO L471 AbstractCegarLoop]: Abstraction has 887 states and 1086 transitions. [2024-10-14 13:55:01,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:55:01,628 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1086 transitions. [2024-10-14 13:55:01,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-14 13:55:01,629 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:55:01,629 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:55:01,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-14 13:55:01,630 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:55:01,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:55:01,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1016421823, now seen corresponding path program 1 times [2024-10-14 13:55:01,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:55:01,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208062012] [2024-10-14 13:55:01,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:55:01,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:55:01,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:02,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:55:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:02,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:55:02,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:02,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:55:02,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:02,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:55:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:02,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:55:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:02,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:55:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:02,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:55:02,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:02,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:55:02,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:02,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:55:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:02,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:55:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:02,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:55:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:02,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:55:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:02,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:55:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:02,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:55:02,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:02,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:55:02,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:02,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:55:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:02,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:55:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:02,184 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:55:02,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:55:02,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208062012] [2024-10-14 13:55:02,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208062012] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:55:02,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:55:02,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 13:55:02,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751154423] [2024-10-14 13:55:02,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:55:02,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 13:55:02,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:55:02,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 13:55:02,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:55:02,186 INFO L87 Difference]: Start difference. First operand 887 states and 1086 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:55:02,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:55:02,561 INFO L93 Difference]: Finished difference Result 1736 states and 2122 transitions. [2024-10-14 13:55:02,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 13:55:02,565 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 136 [2024-10-14 13:55:02,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:55:02,570 INFO L225 Difference]: With dead ends: 1736 [2024-10-14 13:55:02,570 INFO L226 Difference]: Without dead ends: 786 [2024-10-14 13:55:02,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:55:02,573 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 66 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:55:02,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 390 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:55:02,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2024-10-14 13:55:02,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 784. [2024-10-14 13:55:02,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 663 states have (on average 1.1840120663650076) internal successors, (785), 670 states have internal predecessors, (785), 82 states have call successors, (82), 38 states have call predecessors, (82), 38 states have return successors, (82), 75 states have call predecessors, (82), 82 states have call successors, (82) [2024-10-14 13:55:02,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 949 transitions. [2024-10-14 13:55:02,666 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 949 transitions. Word has length 136 [2024-10-14 13:55:02,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:55:02,666 INFO L471 AbstractCegarLoop]: Abstraction has 784 states and 949 transitions. [2024-10-14 13:55:02,666 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:55:02,666 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 949 transitions. [2024-10-14 13:55:02,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-14 13:55:02,669 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:55:02,669 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:55:02,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-14 13:55:02,670 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:55:02,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:55:02,670 INFO L85 PathProgramCache]: Analyzing trace with hash -642372682, now seen corresponding path program 1 times [2024-10-14 13:55:02,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:55:02,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294472870] [2024-10-14 13:55:02,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:55:02,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:55:02,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:03,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:55:03,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:03,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:55:03,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:03,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:55:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:03,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:55:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:03,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:55:03,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:03,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:55:03,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:03,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:55:03,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:03,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:55:03,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:03,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:55:03,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:03,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:55:03,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:03,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:55:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:03,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:55:03,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:03,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:55:03,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:03,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:55:03,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:03,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:55:03,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:03,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:55:03,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:03,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:55:03,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:03,285 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:55:03,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:55:03,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294472870] [2024-10-14 13:55:03,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294472870] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:55:03,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:55:03,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 13:55:03,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643983319] [2024-10-14 13:55:03,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:55:03,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 13:55:03,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:55:03,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 13:55:03,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:55:03,287 INFO L87 Difference]: Start difference. First operand 784 states and 949 transitions. Second operand has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:55:03,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:55:03,745 INFO L93 Difference]: Finished difference Result 1108 states and 1317 transitions. [2024-10-14 13:55:03,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 13:55:03,746 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 136 [2024-10-14 13:55:03,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:55:03,756 INFO L225 Difference]: With dead ends: 1108 [2024-10-14 13:55:03,757 INFO L226 Difference]: Without dead ends: 1106 [2024-10-14 13:55:03,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-14 13:55:03,758 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 64 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:55:03,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 710 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:55:03,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2024-10-14 13:55:03,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 1102. [2024-10-14 13:55:03,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 921 states have (on average 1.1563517915309447) internal successors, (1065), 932 states have internal predecessors, (1065), 122 states have call successors, (122), 58 states have call predecessors, (122), 58 states have return successors, (122), 111 states have call predecessors, (122), 122 states have call successors, (122) [2024-10-14 13:55:03,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1309 transitions. [2024-10-14 13:55:03,895 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1309 transitions. Word has length 136 [2024-10-14 13:55:03,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:55:03,896 INFO L471 AbstractCegarLoop]: Abstraction has 1102 states and 1309 transitions. [2024-10-14 13:55:03,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:55:03,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1309 transitions. [2024-10-14 13:55:03,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-14 13:55:03,897 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:55:03,898 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:55:03,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-14 13:55:03,898 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:55:03,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:55:03,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1392180080, now seen corresponding path program 1 times [2024-10-14 13:55:03,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:55:03,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91395642] [2024-10-14 13:55:03,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:55:03,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:55:03,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:04,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:55:04,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:04,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:55:04,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:04,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:55:04,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:04,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:55:04,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:04,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:55:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:04,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:55:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:04,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:55:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:04,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:55:04,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:04,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:55:04,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:04,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:55:04,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:04,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:55:04,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:04,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:55:04,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:04,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:55:04,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:04,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:55:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:04,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:55:04,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:04,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:55:04,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:04,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:55:04,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:04,451 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:55:04,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:55:04,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91395642] [2024-10-14 13:55:04,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91395642] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:55:04,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:55:04,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 13:55:04,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873413946] [2024-10-14 13:55:04,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:55:04,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 13:55:04,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:55:04,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 13:55:04,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:55:04,453 INFO L87 Difference]: Start difference. First operand 1102 states and 1309 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:55:04,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:55:04,920 INFO L93 Difference]: Finished difference Result 1923 states and 2288 transitions. [2024-10-14 13:55:04,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 13:55:04,920 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 137 [2024-10-14 13:55:04,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:55:04,925 INFO L225 Difference]: With dead ends: 1923 [2024-10-14 13:55:04,926 INFO L226 Difference]: Without dead ends: 838 [2024-10-14 13:55:04,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 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 13:55:04,928 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 70 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:55:04,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 366 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:55:04,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2024-10-14 13:55:05,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 836. [2024-10-14 13:55:05,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 695 states have (on average 1.1410071942446043) internal successors, (793), 702 states have internal predecessors, (793), 96 states have call successors, (96), 44 states have call predecessors, (96), 44 states have return successors, (96), 89 states have call predecessors, (96), 96 states have call successors, (96) [2024-10-14 13:55:05,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 985 transitions. [2024-10-14 13:55:05,040 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 985 transitions. Word has length 137 [2024-10-14 13:55:05,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:55:05,041 INFO L471 AbstractCegarLoop]: Abstraction has 836 states and 985 transitions. [2024-10-14 13:55:05,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:55:05,041 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 985 transitions. [2024-10-14 13:55:05,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-14 13:55:05,044 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:55:05,044 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:55:05,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-14 13:55:05,045 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:55:05,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:55:05,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1222643622, now seen corresponding path program 1 times [2024-10-14 13:55:05,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:55:05,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131138545] [2024-10-14 13:55:05,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:55:05,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:55:05,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:05,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:55:05,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:05,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:55:05,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:05,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:55:05,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:05,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:55:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:05,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:55:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:05,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:55:05,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:05,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:55:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:05,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:55:05,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:05,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:55:05,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:05,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:55:05,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:05,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:55:05,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:05,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:55:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:05,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:55:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:05,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:55:05,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:05,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:55:05,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:05,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:55:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:05,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:55:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:05,689 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:55:05,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:55:05,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131138545] [2024-10-14 13:55:05,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131138545] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:55:05,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:55:05,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 13:55:05,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350493115] [2024-10-14 13:55:05,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:55:05,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 13:55:05,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:55:05,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 13:55:05,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:55:05,693 INFO L87 Difference]: Start difference. First operand 836 states and 985 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:55:06,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:55:06,065 INFO L93 Difference]: Finished difference Result 1619 states and 1906 transitions. [2024-10-14 13:55:06,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 13:55:06,066 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 137 [2024-10-14 13:55:06,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:55:06,070 INFO L225 Difference]: With dead ends: 1619 [2024-10-14 13:55:06,070 INFO L226 Difference]: Without dead ends: 828 [2024-10-14 13:55:06,072 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:55:06,072 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 47 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:55:06,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 317 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:55:06,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2024-10-14 13:55:06,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 822. [2024-10-14 13:55:06,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 681 states have (on average 1.1277533039647578) internal successors, (768), 688 states have internal predecessors, (768), 96 states have call successors, (96), 44 states have call predecessors, (96), 44 states have return successors, (96), 89 states have call predecessors, (96), 96 states have call successors, (96) [2024-10-14 13:55:06,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 960 transitions. [2024-10-14 13:55:06,173 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 960 transitions. Word has length 137 [2024-10-14 13:55:06,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:55:06,173 INFO L471 AbstractCegarLoop]: Abstraction has 822 states and 960 transitions. [2024-10-14 13:55:06,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-14 13:55:06,174 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 960 transitions. [2024-10-14 13:55:06,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-14 13:55:06,175 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:55:06,175 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:55:06,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-14 13:55:06,176 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:55:06,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:55:06,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1275761781, now seen corresponding path program 1 times [2024-10-14 13:55:06,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:55:06,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207425312] [2024-10-14 13:55:06,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:55:06,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:55:06,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:06,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:55:06,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:06,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:55:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:06,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:55:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:06,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:55:06,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:06,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:55:06,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:06,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:55:06,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:06,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:55:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:06,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:55:06,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:06,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:55:06,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:06,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:55:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:06,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:55:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:06,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:55:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:06,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:55:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:06,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:55:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:06,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:55:06,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:06,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:55:06,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:06,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 13:55:06,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:55:06,565 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-14 13:55:06,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:55:06,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207425312] [2024-10-14 13:55:06,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207425312] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:55:06,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:55:06,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 13:55:06,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975899789] [2024-10-14 13:55:06,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:55:06,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 13:55:06,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:55:06,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 13:55:06,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:55:06,567 INFO L87 Difference]: Start difference. First operand 822 states and 960 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:55:06,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:55:06,907 INFO L93 Difference]: Finished difference Result 1544 states and 1804 transitions. [2024-10-14 13:55:06,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 13:55:06,908 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138 [2024-10-14 13:55:06,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:55:06,913 INFO L225 Difference]: With dead ends: 1544 [2024-10-14 13:55:06,913 INFO L226 Difference]: Without dead ends: 767 [2024-10-14 13:55:06,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 1 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 13:55:06,915 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 70 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:55:06,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 372 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:55:06,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2024-10-14 13:55:07,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 761. [2024-10-14 13:55:07,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 761 states, 620 states have (on average 1.117741935483871) internal successors, (693), 627 states have internal predecessors, (693), 96 states have call successors, (96), 44 states have call predecessors, (96), 44 states have return successors, (96), 89 states have call predecessors, (96), 96 states have call successors, (96) [2024-10-14 13:55:07,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 885 transitions. [2024-10-14 13:55:07,091 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 885 transitions. Word has length 138 [2024-10-14 13:55:07,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:55:07,092 INFO L471 AbstractCegarLoop]: Abstraction has 761 states and 885 transitions. [2024-10-14 13:55:07,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-14 13:55:07,092 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 885 transitions. [2024-10-14 13:55:07,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-14 13:55:07,093 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:55:07,094 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:55:07,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-14 13:55:07,094 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:55:07,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:55:07,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1393736072, now seen corresponding path program 1 times [2024-10-14 13:55:07,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:55:07,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639543911] [2024-10-14 13:55:07,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:55:07,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:55:07,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat