./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_floatingpointinfluence_no-floats_file-6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-6.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 39503444fac790cc7ef077fbcc4f712a5a3d8e4f2da830986fe4863c2c197175 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 08:56:53,502 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 08:56:53,561 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 08:56:53,566 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 08:56:53,566 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 08:56:53,587 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 08:56:53,588 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 08:56:53,588 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 08:56:53,588 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 08:56:53,589 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 08:56:53,589 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 08:56:53,589 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 08:56:53,590 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 08:56:53,590 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 08:56:53,590 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 08:56:53,591 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 08:56:53,591 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 08:56:53,591 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 08:56:53,591 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 08:56:53,592 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 08:56:53,592 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 08:56:53,592 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 08:56:53,593 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 08:56:53,595 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 08:56:53,596 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 08:56:53,596 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 08:56:53,596 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 08:56:53,596 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 08:56:53,596 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 08:56:53,597 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 08:56:53,597 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 08:56:53,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 08:56:53,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 08:56:53,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 08:56:53,598 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 08:56:53,598 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 08:56:53,599 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 08:56:53,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 08:56:53,599 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 08:56:53,599 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 08:56:53,599 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 08:56:53,600 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 08:56:53,600 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39503444fac790cc7ef077fbcc4f712a5a3d8e4f2da830986fe4863c2c197175 [2024-10-24 08:56:53,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 08:56:53,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 08:56:53,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 08:56:53,826 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 08:56:53,827 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 08:56:53,827 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-6.i [2024-10-24 08:56:55,014 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 08:56:55,157 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 08:56:55,158 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-6.i [2024-10-24 08:56:55,166 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/410a5072e/7703b7bd3c634b25ab679fdcc153515a/FLAGb0a8c7904 [2024-10-24 08:56:55,569 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/410a5072e/7703b7bd3c634b25ab679fdcc153515a [2024-10-24 08:56:55,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 08:56:55,572 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 08:56:55,573 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 08:56:55,574 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 08:56:55,577 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 08:56:55,578 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:56:55" (1/1) ... [2024-10-24 08:56:55,579 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ee1d32b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:56:55, skipping insertion in model container [2024-10-24 08:56:55,579 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:56:55" (1/1) ... [2024-10-24 08:56:55,598 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 08:56:55,759 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_floatingpointinfluence_no-floats_file-6.i[915,928] [2024-10-24 08:56:55,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 08:56:55,798 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 08:56:55,806 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_floatingpointinfluence_no-floats_file-6.i[915,928] [2024-10-24 08:56:55,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 08:56:55,843 INFO L204 MainTranslator]: Completed translation [2024-10-24 08:56:55,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:56:55 WrapperNode [2024-10-24 08:56:55,844 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 08:56:55,844 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 08:56:55,845 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 08:56:55,845 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 08:56:55,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:56:55" (1/1) ... [2024-10-24 08:56:55,855 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:56:55" (1/1) ... [2024-10-24 08:56:55,879 INFO L138 Inliner]: procedures = 26, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 133 [2024-10-24 08:56:55,879 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 08:56:55,880 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 08:56:55,880 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 08:56:55,880 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 08:56:55,889 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:56:55" (1/1) ... [2024-10-24 08:56:55,890 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:56:55" (1/1) ... [2024-10-24 08:56:55,892 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:56:55" (1/1) ... [2024-10-24 08:56:55,906 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 08:56:55,906 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:56:55" (1/1) ... [2024-10-24 08:56:55,906 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:56:55" (1/1) ... [2024-10-24 08:56:55,910 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:56:55" (1/1) ... [2024-10-24 08:56:55,912 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:56:55" (1/1) ... [2024-10-24 08:56:55,913 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:56:55" (1/1) ... [2024-10-24 08:56:55,914 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:56:55" (1/1) ... [2024-10-24 08:56:55,916 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 08:56:55,916 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 08:56:55,916 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 08:56:55,917 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 08:56:55,920 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:56:55" (1/1) ... [2024-10-24 08:56:55,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 08:56:55,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 08:56:55,953 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 08:56:55,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 08:56:55,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 08:56:55,997 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 08:56:55,998 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 08:56:55,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 08:56:55,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 08:56:55,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 08:56:56,055 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 08:56:56,057 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 08:56:56,252 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-10-24 08:56:56,252 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 08:56:56,287 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 08:56:56,288 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 08:56:56,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:56:56 BoogieIcfgContainer [2024-10-24 08:56:56,288 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 08:56:56,289 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 08:56:56,290 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 08:56:56,292 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 08:56:56,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 08:56:55" (1/3) ... [2024-10-24 08:56:56,293 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3041659f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:56:56, skipping insertion in model container [2024-10-24 08:56:56,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:56:55" (2/3) ... [2024-10-24 08:56:56,293 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3041659f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:56:56, skipping insertion in model container [2024-10-24 08:56:56,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:56:56" (3/3) ... [2024-10-24 08:56:56,294 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-6.i [2024-10-24 08:56:56,307 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 08:56:56,307 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 08:56:56,354 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 08:56:56,360 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;@88280cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 08:56:56,361 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 08:56:56,367 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 29 states have internal predecessors, (39), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-24 08:56:56,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 08:56:56,376 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:56:56,377 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:56:56,380 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:56:56,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:56:56,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1727841666, now seen corresponding path program 1 times [2024-10-24 08:56:56,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:56:56,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343297248] [2024-10-24 08:56:56,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:56:56,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:56:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:56,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:56:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:56,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:56:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:56,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:56:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:56,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:56:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:56,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:56:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:56,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:56:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:56,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:56:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:56,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:56:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:56,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 08:56:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:56,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:56:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:56,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 08:56:56,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:56,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:56:56,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:56,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 08:56:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:56,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:56:56,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:56,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 08:56:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:56,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:56:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:56,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 08:56:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:56,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 08:56:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:56,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 08:56:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:56,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 08:56:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:56,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 08:56:56,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:56,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 08:56:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:56,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 08:56:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:56,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-10-24 08:56:56,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:56:56,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343297248] [2024-10-24 08:56:56,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343297248] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:56:56,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:56:56,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 08:56:56,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866830836] [2024-10-24 08:56:56,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:56:56,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 08:56:56,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:56:56,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 08:56:56,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 08:56:56,789 INFO L87 Difference]: Start difference. First operand has 54 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 29 states have internal predecessors, (39), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-24 08:56:56,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:56:56,816 INFO L93 Difference]: Finished difference Result 105 states and 191 transitions. [2024-10-24 08:56:56,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 08:56:56,819 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 136 [2024-10-24 08:56:56,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:56:56,824 INFO L225 Difference]: With dead ends: 105 [2024-10-24 08:56:56,824 INFO L226 Difference]: Without dead ends: 52 [2024-10-24 08:56:56,828 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 08:56:56,830 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 08:56:56,831 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 08:56:56,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-10-24 08:56:56,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-10-24 08:56:56,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-24 08:56:56,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 80 transitions. [2024-10-24 08:56:56,915 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 80 transitions. Word has length 136 [2024-10-24 08:56:56,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:56:56,915 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 80 transitions. [2024-10-24 08:56:56,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-24 08:56:56,916 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 80 transitions. [2024-10-24 08:56:56,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 08:56:56,918 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:56:56,918 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:56:56,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 08:56:56,922 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:56:56,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:56:56,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1982930436, now seen corresponding path program 1 times [2024-10-24 08:56:56,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:56:56,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550668673] [2024-10-24 08:56:56,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:56:56,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:56:56,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:56:57,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:56:57,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:56:57,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:56:57,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:56:57,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:56:57,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:56:57,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:56:57,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 08:56:57,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:56:57,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 08:56:57,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:56:57,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 08:56:57,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:56:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 08:56:57,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:56:57,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 08:56:57,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 08:56:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 08:56:57,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 08:56:57,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 08:56:57,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 08:56:57,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 08:56:57,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-10-24 08:56:57,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:56:57,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550668673] [2024-10-24 08:56:57,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550668673] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:56:57,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:56:57,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 08:56:57,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301661629] [2024-10-24 08:56:57,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:56:57,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 08:56:57,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:56:57,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 08:56:57,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 08:56:57,391 INFO L87 Difference]: Start difference. First operand 52 states and 80 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-24 08:56:57,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:56:57,512 INFO L93 Difference]: Finished difference Result 103 states and 159 transitions. [2024-10-24 08:56:57,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 08:56:57,514 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 136 [2024-10-24 08:56:57,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:56:57,515 INFO L225 Difference]: With dead ends: 103 [2024-10-24 08:56:57,515 INFO L226 Difference]: Without dead ends: 52 [2024-10-24 08:56:57,516 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 08:56:57,517 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 50 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 08:56:57,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 75 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 08:56:57,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-10-24 08:56:57,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-10-24 08:56:57,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-24 08:56:57,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 79 transitions. [2024-10-24 08:56:57,534 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 79 transitions. Word has length 136 [2024-10-24 08:56:57,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:56:57,536 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 79 transitions. [2024-10-24 08:56:57,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-24 08:56:57,537 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 79 transitions. [2024-10-24 08:56:57,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 08:56:57,539 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:56:57,539 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:56:57,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 08:56:57,540 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:56:57,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:56:57,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1925672134, now seen corresponding path program 1 times [2024-10-24 08:56:57,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:56:57,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619454281] [2024-10-24 08:56:57,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:56:57,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:56:57,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:56:57,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:56:57,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:56:57,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:56:57,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:56:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:56:57,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:56:57,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:56:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 08:56:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:56:57,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 08:56:57,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:56:57,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 08:56:57,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:56:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 08:56:57,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:56:57,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 08:56:57,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 08:56:57,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 08:56:57,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 08:56:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 08:56:57,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 08:56:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 08:56:57,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:56:57,738 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-10-24 08:56:57,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:56:57,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619454281] [2024-10-24 08:56:57,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619454281] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:56:57,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:56:57,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 08:56:57,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594641816] [2024-10-24 08:56:57,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:56:57,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 08:56:57,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:56:57,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 08:56:57,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 08:56:57,743 INFO L87 Difference]: Start difference. First operand 52 states and 79 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-24 08:56:57,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:56:57,791 INFO L93 Difference]: Finished difference Result 140 states and 211 transitions. [2024-10-24 08:56:57,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 08:56:57,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 136 [2024-10-24 08:56:57,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:56:57,795 INFO L225 Difference]: With dead ends: 140 [2024-10-24 08:56:57,796 INFO L226 Difference]: Without dead ends: 89 [2024-10-24 08:56:57,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 08:56:57,797 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 52 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 08:56:57,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 184 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 08:56:57,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-10-24 08:56:57,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 86. [2024-10-24 08:56:57,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 45 states have (on average 1.2) internal successors, (54), 46 states have internal predecessors, (54), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-24 08:56:57,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 130 transitions. [2024-10-24 08:56:57,819 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 130 transitions. Word has length 136 [2024-10-24 08:56:57,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:56:57,819 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 130 transitions. [2024-10-24 08:56:57,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-24 08:56:57,820 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 130 transitions. [2024-10-24 08:56:57,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 08:56:57,821 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:56:57,821 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:56:57,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 08:56:57,821 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:56:57,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:56:57,822 INFO L85 PathProgramCache]: Analyzing trace with hash -150664772, now seen corresponding path program 1 times [2024-10-24 08:56:57,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:56:57,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093471640] [2024-10-24 08:56:57,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:56:57,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:56:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:02,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:57:02,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:02,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:57:02,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:02,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:57:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:02,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:57:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:02,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:57:02,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:02,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:57:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:02,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:57:02,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:02,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:57:02,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:02,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 08:57:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:02,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:57:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:02,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 08:57:02,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:02,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:57:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:02,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 08:57:02,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:02,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:57:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:02,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 08:57:02,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:02,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:57:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:02,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 08:57:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:02,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 08:57:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:02,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 08:57:02,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:02,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 08:57:02,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:02,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 08:57:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:02,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 08:57:02,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:02,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 08:57:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:02,360 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-10-24 08:57:02,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:57:02,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093471640] [2024-10-24 08:57:02,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093471640] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:57:02,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:57:02,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 08:57:02,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455298215] [2024-10-24 08:57:02,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:57:02,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 08:57:02,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:57:02,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 08:57:02,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 08:57:02,364 INFO L87 Difference]: Start difference. First operand 86 states and 130 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-24 08:57:03,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:57:03,665 INFO L93 Difference]: Finished difference Result 95 states and 138 transitions. [2024-10-24 08:57:03,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 08:57:03,666 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 136 [2024-10-24 08:57:03,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:57:03,669 INFO L225 Difference]: With dead ends: 95 [2024-10-24 08:57:03,671 INFO L226 Difference]: Without dead ends: 93 [2024-10-24 08:57:03,671 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-10-24 08:57:03,672 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 27 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 08:57:03,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 265 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 08:57:03,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-10-24 08:57:03,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 88. [2024-10-24 08:57:03,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 47 states have (on average 1.1914893617021276) internal successors, (56), 48 states have internal predecessors, (56), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-24 08:57:03,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 132 transitions. [2024-10-24 08:57:03,690 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 132 transitions. Word has length 136 [2024-10-24 08:57:03,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:57:03,691 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 132 transitions. [2024-10-24 08:57:03,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-24 08:57:03,691 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 132 transitions. [2024-10-24 08:57:03,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-24 08:57:03,693 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:57:03,693 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:57:03,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 08:57:03,693 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:57:03,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:57:03,694 INFO L85 PathProgramCache]: Analyzing trace with hash 628194866, now seen corresponding path program 1 times [2024-10-24 08:57:03,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:57:03,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88020171] [2024-10-24 08:57:03,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:57:03,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:57:03,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:06,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:57:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:06,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:57:06,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:06,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:57:06,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:06,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:57:06,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:06,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:57:06,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:06,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:57:06,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:06,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:57:06,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:06,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:57:06,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:06,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 08:57:06,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:06,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:57:06,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:06,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 08:57:06,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:06,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:57:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:06,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 08:57:06,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:06,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:57:06,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:06,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 08:57:06,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:06,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:57:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:06,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 08:57:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:06,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 08:57:06,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:06,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 08:57:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:06,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 08:57:06,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:06,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 08:57:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:06,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 08:57:06,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:06,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 08:57:06,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:06,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-10-24 08:57:06,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:57:06,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88020171] [2024-10-24 08:57:06,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88020171] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:57:06,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:57:06,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 08:57:06,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835614966] [2024-10-24 08:57:06,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:57:06,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 08:57:06,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:57:06,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 08:57:06,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-10-24 08:57:06,767 INFO L87 Difference]: Start difference. First operand 88 states and 132 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-24 08:57:15,008 WARN L286 SmtUtils]: Spent 7.85s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-24 08:57:15,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:57:15,065 INFO L93 Difference]: Finished difference Result 108 states and 154 transitions. [2024-10-24 08:57:15,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 08:57:15,067 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 137 [2024-10-24 08:57:15,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:57:15,069 INFO L225 Difference]: With dead ends: 108 [2024-10-24 08:57:15,069 INFO L226 Difference]: Without dead ends: 106 [2024-10-24 08:57:15,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2024-10-24 08:57:15,070 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 39 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 08:57:15,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 329 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 08:57:15,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-10-24 08:57:15,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 94. [2024-10-24 08:57:15,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 53 states have (on average 1.2075471698113207) internal successors, (64), 54 states have internal predecessors, (64), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-24 08:57:15,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 140 transitions. [2024-10-24 08:57:15,081 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 140 transitions. Word has length 137 [2024-10-24 08:57:15,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:57:15,081 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 140 transitions. [2024-10-24 08:57:15,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-24 08:57:15,082 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 140 transitions. [2024-10-24 08:57:15,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-24 08:57:15,083 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:57:15,083 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:57:15,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 08:57:15,083 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:57:15,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:57:15,083 INFO L85 PathProgramCache]: Analyzing trace with hash -181151760, now seen corresponding path program 1 times [2024-10-24 08:57:15,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:57:15,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997567316] [2024-10-24 08:57:15,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:57:15,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:57:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:17,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:57:17,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:17,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:57:17,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:17,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:57:17,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:17,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:57:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:17,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:57:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:17,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:57:17,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:17,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:57:17,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:17,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:57:17,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:17,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 08:57:17,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:17,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:57:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:17,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 08:57:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:17,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:57:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:17,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 08:57:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:17,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:57:17,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:17,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 08:57:17,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:17,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:57:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:17,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 08:57:17,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:17,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 08:57:17,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:17,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 08:57:17,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:17,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 08:57:17,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:17,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 08:57:17,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:17,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 08:57:17,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:17,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 08:57:17,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:17,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-10-24 08:57:17,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:57:17,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997567316] [2024-10-24 08:57:17,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997567316] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:57:17,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:57:17,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 08:57:17,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697017241] [2024-10-24 08:57:17,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:57:17,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 08:57:17,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:57:17,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 08:57:17,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-24 08:57:17,870 INFO L87 Difference]: Start difference. First operand 94 states and 140 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-24 08:57:18,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:57:18,470 INFO L93 Difference]: Finished difference Result 109 states and 156 transitions. [2024-10-24 08:57:18,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 08:57:18,473 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 137 [2024-10-24 08:57:18,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:57:18,475 INFO L225 Difference]: With dead ends: 109 [2024-10-24 08:57:18,476 INFO L226 Difference]: Without dead ends: 107 [2024-10-24 08:57:18,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-24 08:57:18,477 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 36 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 08:57:18,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 232 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 08:57:18,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-10-24 08:57:18,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 90. [2024-10-24 08:57:18,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 49 states have (on average 1.183673469387755) internal successors, (58), 50 states have internal predecessors, (58), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-10-24 08:57:18,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 134 transitions. [2024-10-24 08:57:18,493 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 134 transitions. Word has length 137 [2024-10-24 08:57:18,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:57:18,493 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 134 transitions. [2024-10-24 08:57:18,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-24 08:57:18,493 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 134 transitions. [2024-10-24 08:57:18,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-24 08:57:18,494 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:57:18,494 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:57:18,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 08:57:18,495 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:57:18,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:57:18,495 INFO L85 PathProgramCache]: Analyzing trace with hash -385519683, now seen corresponding path program 1 times [2024-10-24 08:57:18,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:57:18,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814146737] [2024-10-24 08:57:18,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:57:18,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:57:18,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:18,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:57:18,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:18,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:57:18,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:18,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:57:18,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:18,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:57:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:18,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:57:18,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:18,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:57:18,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:18,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:57:18,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:18,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:57:18,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:18,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 08:57:18,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:18,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:57:18,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:18,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 08:57:18,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:18,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:57:18,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:18,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 08:57:18,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:18,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:57:18,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:18,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 08:57:18,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:18,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:57:18,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:18,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 08:57:18,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:18,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 08:57:18,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:18,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 08:57:18,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:18,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 08:57:18,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:18,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 08:57:18,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:18,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 08:57:18,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:18,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 08:57:18,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:18,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-10-24 08:57:18,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:57:18,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814146737] [2024-10-24 08:57:18,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814146737] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:57:18,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:57:18,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 08:57:18,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231687254] [2024-10-24 08:57:18,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:57:18,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 08:57:18,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:57:18,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 08:57:18,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 08:57:18,945 INFO L87 Difference]: Start difference. First operand 90 states and 134 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-24 08:57:19,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:57:19,308 INFO L93 Difference]: Finished difference Result 244 states and 362 transitions. [2024-10-24 08:57:19,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 08:57:19,308 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 137 [2024-10-24 08:57:19,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:57:19,310 INFO L225 Difference]: With dead ends: 244 [2024-10-24 08:57:19,310 INFO L226 Difference]: Without dead ends: 155 [2024-10-24 08:57:19,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-24 08:57:19,311 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 38 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 08:57:19,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 246 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 08:57:19,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-10-24 08:57:19,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 141. [2024-10-24 08:57:19,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 76 states have (on average 1.1842105263157894) internal successors, (90), 77 states have internal predecessors, (90), 61 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-10-24 08:57:19,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 212 transitions. [2024-10-24 08:57:19,331 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 212 transitions. Word has length 137 [2024-10-24 08:57:19,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:57:19,332 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 212 transitions. [2024-10-24 08:57:19,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-24 08:57:19,332 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 212 transitions. [2024-10-24 08:57:19,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-24 08:57:19,333 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:57:19,333 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:57:19,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 08:57:19,333 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:57:19,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:57:19,334 INFO L85 PathProgramCache]: Analyzing trace with hash -385460101, now seen corresponding path program 1 times [2024-10-24 08:57:19,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:57:19,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420961898] [2024-10-24 08:57:19,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:57:19,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:57:19,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:21,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:57:21,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:21,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:57:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:21,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:57:21,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:21,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:57:21,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:21,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:57:21,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:21,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:57:21,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:21,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:57:21,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:21,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:57:21,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:21,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 08:57:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:21,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:57:21,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:21,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 08:57:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:21,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:57:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:21,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 08:57:21,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:21,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:57:21,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:21,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 08:57:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:21,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:57:21,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:21,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 08:57:21,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:21,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 08:57:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:21,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 08:57:21,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:21,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 08:57:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:21,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 08:57:21,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:21,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 08:57:21,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:21,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 08:57:21,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:21,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-10-24 08:57:21,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:57:21,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420961898] [2024-10-24 08:57:21,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420961898] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:57:21,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:57:21,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 08:57:21,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847251427] [2024-10-24 08:57:21,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:57:21,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 08:57:21,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:57:21,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 08:57:21,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-10-24 08:57:21,583 INFO L87 Difference]: Start difference. First operand 141 states and 212 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-24 08:57:22,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:57:22,994 INFO L93 Difference]: Finished difference Result 238 states and 352 transitions. [2024-10-24 08:57:22,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 08:57:22,994 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 137 [2024-10-24 08:57:22,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:57:22,996 INFO L225 Difference]: With dead ends: 238 [2024-10-24 08:57:22,996 INFO L226 Difference]: Without dead ends: 236 [2024-10-24 08:57:22,996 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-10-24 08:57:22,996 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 77 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 08:57:22,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 267 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 08:57:22,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-10-24 08:57:23,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 228. [2024-10-24 08:57:23,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 123 states have (on average 1.1869918699186992) internal successors, (146), 125 states have internal predecessors, (146), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 97 states have call predecessors, (99), 99 states have call successors, (99) [2024-10-24 08:57:23,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 344 transitions. [2024-10-24 08:57:23,025 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 344 transitions. Word has length 137 [2024-10-24 08:57:23,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:57:23,026 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 344 transitions. [2024-10-24 08:57:23,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-24 08:57:23,026 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 344 transitions. [2024-10-24 08:57:23,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-24 08:57:23,027 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:57:23,027 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:57:23,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 08:57:23,027 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:57:23,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:57:23,028 INFO L85 PathProgramCache]: Analyzing trace with hash -2010674681, now seen corresponding path program 1 times [2024-10-24 08:57:23,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:57:23,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454602767] [2024-10-24 08:57:23,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:57:23,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:57:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:24,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:57:24,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:24,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:57:24,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:24,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:57:24,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:24,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:57:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:24,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:57:24,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:24,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:57:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:24,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:57:24,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:24,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:57:24,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:24,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 08:57:24,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:24,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:57:24,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:24,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 08:57:24,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:24,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:57:24,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:24,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 08:57:24,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:24,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:57:24,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:24,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 08:57:24,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:24,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:57:24,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:24,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 08:57:24,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:24,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 08:57:24,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:24,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 08:57:24,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:24,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 08:57:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:24,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 08:57:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:24,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 08:57:24,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:24,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 08:57:24,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:24,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-10-24 08:57:24,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:57:24,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454602767] [2024-10-24 08:57:24,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454602767] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:57:24,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:57:24,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 08:57:24,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870023505] [2024-10-24 08:57:24,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:57:24,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 08:57:24,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:57:24,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 08:57:24,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-10-24 08:57:24,838 INFO L87 Difference]: Start difference. First operand 228 states and 344 transitions. Second operand has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-24 08:57:25,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:57:25,118 INFO L93 Difference]: Finished difference Result 248 states and 365 transitions. [2024-10-24 08:57:25,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 08:57:25,119 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 138 [2024-10-24 08:57:25,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:57:25,120 INFO L225 Difference]: With dead ends: 248 [2024-10-24 08:57:25,120 INFO L226 Difference]: Without dead ends: 246 [2024-10-24 08:57:25,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2024-10-24 08:57:25,121 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 47 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 08:57:25,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 272 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 08:57:25,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-10-24 08:57:25,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 232. [2024-10-24 08:57:25,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 127 states have (on average 1.1968503937007875) internal successors, (152), 129 states have internal predecessors, (152), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 97 states have call predecessors, (99), 99 states have call successors, (99) [2024-10-24 08:57:25,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 350 transitions. [2024-10-24 08:57:25,149 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 350 transitions. Word has length 138 [2024-10-24 08:57:25,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:57:25,149 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 350 transitions. [2024-10-24 08:57:25,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-24 08:57:25,150 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 350 transitions. [2024-10-24 08:57:25,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-24 08:57:25,150 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:57:25,151 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:57:25,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 08:57:25,151 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:57:25,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:57:25,151 INFO L85 PathProgramCache]: Analyzing trace with hash -2010615099, now seen corresponding path program 1 times [2024-10-24 08:57:25,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:57:25,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391391210] [2024-10-24 08:57:25,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:57:25,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:57:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:27,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:57:27,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:27,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:57:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:27,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:57:27,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:27,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:57:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:27,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:57:27,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:27,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:57:27,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:27,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:57:27,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:27,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:57:27,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:27,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 08:57:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:27,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:57:27,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:27,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 08:57:27,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:27,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:57:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:27,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 08:57:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:27,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:57:27,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:27,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 08:57:27,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:27,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:57:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:27,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 08:57:27,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:27,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 08:57:27,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:27,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 08:57:27,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:27,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 08:57:27,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:27,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 08:57:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:27,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 08:57:27,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:27,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 08:57:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:27,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-10-24 08:57:27,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:57:27,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391391210] [2024-10-24 08:57:27,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391391210] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:57:27,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:57:27,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 08:57:27,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24280404] [2024-10-24 08:57:27,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:57:27,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 08:57:27,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:57:27,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 08:57:27,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-10-24 08:57:27,264 INFO L87 Difference]: Start difference. First operand 232 states and 350 transitions. Second operand has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-24 08:57:27,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:57:27,728 INFO L93 Difference]: Finished difference Result 246 states and 363 transitions. [2024-10-24 08:57:27,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 08:57:27,729 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 138 [2024-10-24 08:57:27,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:57:27,730 INFO L225 Difference]: With dead ends: 246 [2024-10-24 08:57:27,730 INFO L226 Difference]: Without dead ends: 244 [2024-10-24 08:57:27,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2024-10-24 08:57:27,731 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 53 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 08:57:27,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 257 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 08:57:27,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-10-24 08:57:27,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 232. [2024-10-24 08:57:27,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 127 states have (on average 1.1968503937007875) internal successors, (152), 129 states have internal predecessors, (152), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 97 states have call predecessors, (99), 99 states have call successors, (99) [2024-10-24 08:57:27,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 350 transitions. [2024-10-24 08:57:27,754 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 350 transitions. Word has length 138 [2024-10-24 08:57:27,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:57:27,754 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 350 transitions. [2024-10-24 08:57:27,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-24 08:57:27,755 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 350 transitions. [2024-10-24 08:57:27,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-24 08:57:27,756 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:57:27,756 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:57:27,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 08:57:27,756 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:57:27,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:57:27,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1475005571, now seen corresponding path program 1 times [2024-10-24 08:57:27,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:57:27,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290546891] [2024-10-24 08:57:27,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:57:27,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:57:27,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:34,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:57:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:34,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:57:34,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:34,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:57:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:34,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:57:34,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:34,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:57:34,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:34,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:57:34,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:34,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:57:34,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:34,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:57:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:34,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 08:57:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:34,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:57:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:34,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 08:57:34,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:34,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:57:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:34,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 08:57:34,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:34,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:57:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:34,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 08:57:34,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:34,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:57:34,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:34,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 08:57:34,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:34,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 08:57:34,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:34,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 08:57:34,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:34,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 08:57:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:34,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 08:57:34,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:34,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 08:57:34,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:34,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 08:57:34,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:34,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-10-24 08:57:34,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:57:34,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290546891] [2024-10-24 08:57:34,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290546891] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:57:34,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:57:34,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 08:57:34,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292254604] [2024-10-24 08:57:34,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:57:34,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 08:57:34,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:57:34,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 08:57:34,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-10-24 08:57:34,683 INFO L87 Difference]: Start difference. First operand 232 states and 350 transitions. Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-24 08:57:41,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:57:41,407 INFO L93 Difference]: Finished difference Result 250 states and 368 transitions. [2024-10-24 08:57:41,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-24 08:57:41,407 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 138 [2024-10-24 08:57:41,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:57:41,409 INFO L225 Difference]: With dead ends: 250 [2024-10-24 08:57:41,409 INFO L226 Difference]: Without dead ends: 248 [2024-10-24 08:57:41,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=179, Invalid=577, Unknown=0, NotChecked=0, Total=756 [2024-10-24 08:57:41,410 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 60 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-24 08:57:41,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 347 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-24 08:57:41,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-10-24 08:57:41,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 232. [2024-10-24 08:57:41,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 127 states have (on average 1.1968503937007875) internal successors, (152), 129 states have internal predecessors, (152), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 97 states have call predecessors, (99), 99 states have call successors, (99) [2024-10-24 08:57:41,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 350 transitions. [2024-10-24 08:57:41,432 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 350 transitions. Word has length 138 [2024-10-24 08:57:41,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:57:41,432 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 350 transitions. [2024-10-24 08:57:41,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-10-24 08:57:41,432 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 350 transitions. [2024-10-24 08:57:41,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-10-24 08:57:41,435 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:57:41,435 INFO L215 NwaCegarLoop]: trace histogram [46, 46, 46, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:57:41,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 08:57:41,435 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:57:41,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:57:41,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1598348461, now seen corresponding path program 1 times [2024-10-24 08:57:41,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:57:41,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215961305] [2024-10-24 08:57:41,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:57:41,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:57:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:57:42,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:57:42,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:57:42,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:57:42,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:57:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:57:42,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:57:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:57:42,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 08:57:42,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:57:42,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 08:57:42,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:57:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 08:57:42,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:57:42,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 08:57:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:57:42,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 08:57:42,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 08:57:42,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 08:57:42,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 08:57:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 08:57:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 08:57:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 08:57:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-24 08:57:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-24 08:57:42,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-24 08:57:42,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-24 08:57:42,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 08:57:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-24 08:57:42,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-24 08:57:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-24 08:57:42,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 08:57:42,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-24 08:57:42,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-10-24 08:57:42,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-10-24 08:57:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-10-24 08:57:42,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-10-24 08:57:42,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-10-24 08:57:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-24 08:57:42,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-10-24 08:57:42,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-10-24 08:57:42,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-10-24 08:57:42,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-10-24 08:57:42,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-10-24 08:57:42,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-10-24 08:57:42,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-10-24 08:57:42,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,642 INFO L134 CoverageAnalysis]: Checked inductivity of 4182 backedges. 2 proven. 40 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-10-24 08:57:42,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:57:42,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215961305] [2024-10-24 08:57:42,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215961305] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 08:57:42,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688552792] [2024-10-24 08:57:42,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:57:42,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 08:57:42,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 08:57:42,644 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) [2024-10-24 08:57:42,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 08:57:42,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:42,765 INFO L255 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-24 08:57:42,775 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 08:57:43,747 INFO L134 CoverageAnalysis]: Checked inductivity of 4182 backedges. 2 proven. 2156 refuted. 0 times theorem prover too weak. 2024 trivial. 0 not checked. [2024-10-24 08:57:43,747 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 08:57:44,156 INFO L134 CoverageAnalysis]: Checked inductivity of 4182 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 4179 trivial. 0 not checked. [2024-10-24 08:57:44,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688552792] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 08:57:44,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 08:57:44,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 5] total 16 [2024-10-24 08:57:44,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800649142] [2024-10-24 08:57:44,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 08:57:44,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-24 08:57:44,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:57:44,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-24 08:57:44,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-10-24 08:57:44,159 INFO L87 Difference]: Start difference. First operand 232 states and 350 transitions. Second operand has 16 states, 16 states have (on average 6.125) internal successors, (98), 16 states have internal predecessors, (98), 4 states have call successors, (115), 3 states have call predecessors, (115), 3 states have return successors, (115), 4 states have call predecessors, (115), 4 states have call successors, (115) [2024-10-24 08:57:44,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:57:44,745 INFO L93 Difference]: Finished difference Result 423 states and 630 transitions. [2024-10-24 08:57:44,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 08:57:44,746 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.125) internal successors, (98), 16 states have internal predecessors, (98), 4 states have call successors, (115), 3 states have call predecessors, (115), 3 states have return successors, (115), 4 states have call predecessors, (115), 4 states have call successors, (115) Word has length 272 [2024-10-24 08:57:44,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:57:44,748 INFO L225 Difference]: With dead ends: 423 [2024-10-24 08:57:44,748 INFO L226 Difference]: Without dead ends: 243 [2024-10-24 08:57:44,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 631 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=146, Invalid=360, Unknown=0, NotChecked=0, Total=506 [2024-10-24 08:57:44,750 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 157 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 08:57:44,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 473 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 08:57:44,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2024-10-24 08:57:44,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 225. [2024-10-24 08:57:44,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 120 states have (on average 1.175) internal successors, (141), 122 states have internal predecessors, (141), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 97 states have call predecessors, (99), 99 states have call successors, (99) [2024-10-24 08:57:44,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 339 transitions. [2024-10-24 08:57:44,777 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 339 transitions. Word has length 272 [2024-10-24 08:57:44,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:57:44,778 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 339 transitions. [2024-10-24 08:57:44,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.125) internal successors, (98), 16 states have internal predecessors, (98), 4 states have call successors, (115), 3 states have call predecessors, (115), 3 states have return successors, (115), 4 states have call predecessors, (115), 4 states have call successors, (115) [2024-10-24 08:57:44,779 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 339 transitions. [2024-10-24 08:57:44,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-10-24 08:57:44,780 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:57:44,780 INFO L215 NwaCegarLoop]: trace histogram [46, 46, 46, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:57:44,796 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 08:57:44,981 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,SelfDestructingSolverStorable11 [2024-10-24 08:57:44,982 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:57:44,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:57:44,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1625202231, now seen corresponding path program 1 times [2024-10-24 08:57:44,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:57:44,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497474085] [2024-10-24 08:57:44,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:57:44,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:57:45,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:57:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:57:50,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:57:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:57:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:57:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:57:50,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:57:50,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:57:50,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 08:57:50,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:57:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 08:57:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:57:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 08:57:50,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:57:50,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 08:57:50,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:57:50,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 08:57:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 08:57:50,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 08:57:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 08:57:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 08:57:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 08:57:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 08:57:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 08:57:50,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-24 08:57:50,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 08:57:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 08:57:50,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-24 08:57:50,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-24 08:57:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-24 08:57:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-10-24 08:57:50,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-24 08:57:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-24 08:57:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-10-24 08:57:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-10-24 08:57:50,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-10-24 08:57:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-10-24 08:57:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-10-24 08:57:50,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-10-24 08:57:50,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-10-24 08:57:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-10-24 08:57:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-10-24 08:57:50,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-10-24 08:57:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-10-24 08:57:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-10-24 08:57:50,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-10-24 08:57:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,647 INFO L134 CoverageAnalysis]: Checked inductivity of 4182 backedges. 39 proven. 3 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-10-24 08:57:50,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:57:50,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497474085] [2024-10-24 08:57:50,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497474085] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 08:57:50,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685981534] [2024-10-24 08:57:50,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:57:50,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 08:57:50,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 08:57:50,649 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 08:57:50,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 08:57:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:50,767 INFO L255 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-10-24 08:57:50,773 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 08:57:52,348 INFO L134 CoverageAnalysis]: Checked inductivity of 4182 backedges. 2260 proven. 901 refuted. 0 times theorem prover too weak. 1021 trivial. 0 not checked. [2024-10-24 08:57:52,348 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 08:57:54,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685981534] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 08:57:54,568 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 08:57:54,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 30] total 39 [2024-10-24 08:57:54,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438640919] [2024-10-24 08:57:54,568 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 08:57:54,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-10-24 08:57:54,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:57:54,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-10-24 08:57:54,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=421, Invalid=2129, Unknown=0, NotChecked=0, Total=2550 [2024-10-24 08:57:54,573 INFO L87 Difference]: Start difference. First operand 225 states and 339 transitions. Second operand has 39 states, 39 states have (on average 3.1538461538461537) internal successors, (123), 35 states have internal predecessors, (123), 10 states have call successors, (92), 9 states have call predecessors, (92), 13 states have return successors, (92), 12 states have call predecessors, (92), 10 states have call successors, (92) [2024-10-24 08:57:56,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:57:56,556 INFO L93 Difference]: Finished difference Result 405 states and 545 transitions. [2024-10-24 08:57:56,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-10-24 08:57:56,556 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 3.1538461538461537) internal successors, (123), 35 states have internal predecessors, (123), 10 states have call successors, (92), 9 states have call predecessors, (92), 13 states have return successors, (92), 12 states have call predecessors, (92), 10 states have call successors, (92) Word has length 273 [2024-10-24 08:57:56,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:57:56,560 INFO L225 Difference]: With dead ends: 405 [2024-10-24 08:57:56,560 INFO L226 Difference]: Without dead ends: 312 [2024-10-24 08:57:56,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 444 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2193 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1497, Invalid=6335, Unknown=0, NotChecked=0, Total=7832 [2024-10-24 08:57:56,563 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 177 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 1242 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 1242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 08:57:56,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 506 Invalid, 1377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 1242 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 08:57:56,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2024-10-24 08:57:56,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 297. [2024-10-24 08:57:56,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 174 states have (on average 1.103448275862069) internal successors, (192), 176 states have internal predecessors, (192), 99 states have call successors, (99), 23 states have call predecessors, (99), 23 states have return successors, (99), 97 states have call predecessors, (99), 99 states have call successors, (99) [2024-10-24 08:57:56,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 390 transitions. [2024-10-24 08:57:56,606 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 390 transitions. Word has length 273 [2024-10-24 08:57:56,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:57:56,607 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 390 transitions. [2024-10-24 08:57:56,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 3.1538461538461537) internal successors, (123), 35 states have internal predecessors, (123), 10 states have call successors, (92), 9 states have call predecessors, (92), 13 states have return successors, (92), 12 states have call predecessors, (92), 10 states have call successors, (92) [2024-10-24 08:57:56,607 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 390 transitions. [2024-10-24 08:57:56,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-10-24 08:57:56,609 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:57:56,609 INFO L215 NwaCegarLoop]: trace histogram [46, 46, 46, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:57:56,625 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 08:57:56,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-24 08:57:56,813 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:57:56,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:57:56,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1625142649, now seen corresponding path program 1 times [2024-10-24 08:57:56,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:57:56,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374941697] [2024-10-24 08:57:56,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:57:56,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:57:56,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:57:58,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:57:58,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:57:58,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:57:58,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:57:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:57:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:57:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:57:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 08:57:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:57:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 08:57:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:57:58,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 08:57:58,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:57:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 08:57:58,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:57:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 08:57:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 08:57:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 08:57:58,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 08:57:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 08:57:58,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 08:57:58,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 08:57:58,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-24 08:57:58,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-24 08:57:58,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-24 08:57:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-24 08:57:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-24 08:57:58,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-24 08:57:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-24 08:57:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-10-24 08:57:58,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-24 08:57:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-24 08:57:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-10-24 08:57:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-10-24 08:57:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-10-24 08:57:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-10-24 08:57:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-10-24 08:57:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-10-24 08:57:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-10-24 08:57:58,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2024-10-24 08:57:58,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-10-24 08:57:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-10-24 08:57:58,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-10-24 08:57:58,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-10-24 08:57:58,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2024-10-24 08:57:58,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:58,925 INFO L134 CoverageAnalysis]: Checked inductivity of 4182 backedges. 39 proven. 3 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-10-24 08:57:58,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:57:58,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374941697] [2024-10-24 08:57:58,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374941697] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 08:57:58,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038641807] [2024-10-24 08:57:58,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:57:58,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 08:57:58,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 08:57:58,927 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 08:57:58,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 08:57:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:57:59,099 INFO L255 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-10-24 08:57:59,105 INFO L278 TraceCheckSpWp]: Computing forward predicates...