./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_has-floats_file-66.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d 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_has-floats_file-66.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 647c2d42f3d9d1fd2cb1f6cf3d4c2bf6004a69ab4ab9379121b25a3c16e8049d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 03:28:52,507 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 03:28:52,559 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-13 03:28:52,563 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 03:28:52,565 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 03:28:52,586 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 03:28:52,586 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 03:28:52,587 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 03:28:52,587 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 03:28:52,589 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 03:28:52,589 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 03:28:52,589 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 03:28:52,589 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 03:28:52,590 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 03:28:52,590 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 03:28:52,590 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 03:28:52,592 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 03:28:52,592 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 03:28:52,593 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 03:28:52,593 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 03:28:52,593 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 03:28:52,593 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 03:28:52,594 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 03:28:52,594 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 03:28:52,594 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 03:28:52,594 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 03:28:52,594 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 03:28:52,594 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 03:28:52,595 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 03:28:52,595 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 03:28:52,595 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 03:28:52,595 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 03:28:52,595 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 03:28:52,595 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 03:28:52,596 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 03:28:52,596 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 03:28:52,596 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 03:28:52,596 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 03:28:52,597 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 03:28:52,597 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 03:28:52,597 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 03:28:52,598 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 03:28:52,598 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 647c2d42f3d9d1fd2cb1f6cf3d4c2bf6004a69ab4ab9379121b25a3c16e8049d [2024-10-13 03:28:52,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 03:28:52,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 03:28:52,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 03:28:52,808 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 03:28:52,809 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 03:28:52,809 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-66.i [2024-10-13 03:28:54,048 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 03:28:54,201 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 03:28:54,202 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-66.i [2024-10-13 03:28:54,209 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/119bd3f66/88b42528edc14f45b88adc7436099358/FLAGb46b27e7b [2024-10-13 03:28:54,610 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/119bd3f66/88b42528edc14f45b88adc7436099358 [2024-10-13 03:28:54,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 03:28:54,615 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 03:28:54,620 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 03:28:54,620 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 03:28:54,624 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 03:28:54,625 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:28:54" (1/1) ... [2024-10-13 03:28:54,626 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c7ba624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:28:54, skipping insertion in model container [2024-10-13 03:28:54,626 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:28:54" (1/1) ... [2024-10-13 03:28:54,650 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 03:28:54,788 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_has-floats_file-66.i[917,930] [2024-10-13 03:28:54,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 03:28:54,826 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 03:28:54,835 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_has-floats_file-66.i[917,930] [2024-10-13 03:28:54,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 03:28:54,871 INFO L204 MainTranslator]: Completed translation [2024-10-13 03:28:54,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:28:54 WrapperNode [2024-10-13 03:28:54,871 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 03:28:54,872 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 03:28:54,872 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 03:28:54,872 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 03:28:54,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:28:54" (1/1) ... [2024-10-13 03:28:54,884 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:28:54" (1/1) ... [2024-10-13 03:28:54,912 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 101 [2024-10-13 03:28:54,913 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 03:28:54,913 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 03:28:54,913 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 03:28:54,913 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 03:28:54,923 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:28:54" (1/1) ... [2024-10-13 03:28:54,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:28:54" (1/1) ... [2024-10-13 03:28:54,928 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:28:54" (1/1) ... [2024-10-13 03:28:54,946 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]. [2024-10-13 03:28:54,947 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:28:54" (1/1) ... [2024-10-13 03:28:54,947 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:28:54" (1/1) ... [2024-10-13 03:28:54,952 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:28:54" (1/1) ... [2024-10-13 03:28:54,955 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:28:54" (1/1) ... [2024-10-13 03:28:54,957 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:28:54" (1/1) ... [2024-10-13 03:28:54,958 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:28:54" (1/1) ... [2024-10-13 03:28:54,960 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 03:28:54,961 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 03:28:54,961 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 03:28:54,961 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 03:28:54,962 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:28:54" (1/1) ... [2024-10-13 03:28:54,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 03:28:54,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 03:28:54,995 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) [2024-10-13 03:28:54,998 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 [2024-10-13 03:28:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 03:28:55,083 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 03:28:55,084 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 03:28:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 03:28:55,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 03:28:55,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 03:28:55,149 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 03:28:55,152 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 03:28:55,369 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-10-13 03:28:55,369 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 03:28:55,408 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 03:28:55,408 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 03:28:55,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:28:55 BoogieIcfgContainer [2024-10-13 03:28:55,409 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 03:28:55,411 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 03:28:55,411 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 03:28:55,414 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 03:28:55,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 03:28:54" (1/3) ... [2024-10-13 03:28:55,415 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a54ac16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 03:28:55, skipping insertion in model container [2024-10-13 03:28:55,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:28:54" (2/3) ... [2024-10-13 03:28:55,416 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a54ac16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 03:28:55, skipping insertion in model container [2024-10-13 03:28:55,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:28:55" (3/3) ... [2024-10-13 03:28:55,417 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-66.i [2024-10-13 03:28:55,429 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 03:28:55,429 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 03:28:55,473 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 03:28:55,478 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;@5cf0b38d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 03:28:55,478 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 03:28:55,482 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 23 states have internal predecessors, (32), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-13 03:28:55,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-13 03:28:55,490 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 03:28:55,490 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 03:28:55,491 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 03:28:55,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 03:28:55,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1944780512, now seen corresponding path program 1 times [2024-10-13 03:28:55,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 03:28:55,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735993805] [2024-10-13 03:28:55,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 03:28:55,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 03:28:55,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:55,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 03:28:55,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:55,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 03:28:55,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:55,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 03:28:55,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:55,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 03:28:55,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:55,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 03:28:55,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:55,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 03:28:55,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:55,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 03:28:55,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:55,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 03:28:55,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:55,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 03:28:55,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:55,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 03:28:55,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:55,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 03:28:55,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:55,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 03:28:55,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:55,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 03:28:55,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:55,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 03:28:55,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:55,763 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 03:28:55,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 03:28:55,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735993805] [2024-10-13 03:28:55,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735993805] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 03:28:55,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 03:28:55,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 03:28:55,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465728566] [2024-10-13 03:28:55,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 03:28:55,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 03:28:55,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 03:28:55,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 03:28:55,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 03:28:55,795 INFO L87 Difference]: Start difference. First operand has 39 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 23 states have internal predecessors, (32), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-13 03:28:55,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 03:28:55,830 INFO L93 Difference]: Finished difference Result 75 states and 132 transitions. [2024-10-13 03:28:55,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 03:28:55,832 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 85 [2024-10-13 03:28:55,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 03:28:55,837 INFO L225 Difference]: With dead ends: 75 [2024-10-13 03:28:55,838 INFO L226 Difference]: Without dead ends: 37 [2024-10-13 03:28:55,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 03:28:55,844 INFO L432 NwaCegarLoop]: 52 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, 52 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 [2024-10-13 03:28:55,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 03:28:55,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-10-13 03:28:55,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-10-13 03:28:55,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-13 03:28:55,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 55 transitions. [2024-10-13 03:28:55,880 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 55 transitions. Word has length 85 [2024-10-13 03:28:55,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 03:28:55,881 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 55 transitions. [2024-10-13 03:28:55,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-13 03:28:55,882 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 55 transitions. [2024-10-13 03:28:55,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-13 03:28:55,884 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 03:28:55,884 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 03:28:55,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 03:28:55,884 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 03:28:55,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 03:28:55,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1661919200, now seen corresponding path program 1 times [2024-10-13 03:28:55,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 03:28:55,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263983072] [2024-10-13 03:28:55,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 03:28:55,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 03:28:55,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 03:28:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 03:28:56,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 03:28:56,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 03:28:56,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 03:28:56,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 03:28:56,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 03:28:56,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 03:28:56,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 03:28:56,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 03:28:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 03:28:56,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 03:28:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 03:28:56,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 03:28:56,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,244 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 03:28:56,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 03:28:56,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263983072] [2024-10-13 03:28:56,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263983072] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 03:28:56,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 03:28:56,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 03:28:56,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582819473] [2024-10-13 03:28:56,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 03:28:56,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 03:28:56,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 03:28:56,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 03:28:56,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 03:28:56,250 INFO L87 Difference]: Start difference. First operand 37 states and 55 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 03:28:56,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 03:28:56,290 INFO L93 Difference]: Finished difference Result 109 states and 163 transitions. [2024-10-13 03:28:56,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 03:28:56,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 85 [2024-10-13 03:28:56,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 03:28:56,295 INFO L225 Difference]: With dead ends: 109 [2024-10-13 03:28:56,296 INFO L226 Difference]: Without dead ends: 73 [2024-10-13 03:28:56,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 03:28:56,297 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 26 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 03:28:56,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 94 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 03:28:56,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-10-13 03:28:56,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 70. [2024-10-13 03:28:56,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 39 states have internal predecessors, (48), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-13 03:28:56,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 104 transitions. [2024-10-13 03:28:56,322 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 104 transitions. Word has length 85 [2024-10-13 03:28:56,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 03:28:56,322 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 104 transitions. [2024-10-13 03:28:56,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 03:28:56,322 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 104 transitions. [2024-10-13 03:28:56,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-13 03:28:56,324 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 03:28:56,324 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 03:28:56,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 03:28:56,324 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 03:28:56,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 03:28:56,325 INFO L85 PathProgramCache]: Analyzing trace with hash -20088315, now seen corresponding path program 1 times [2024-10-13 03:28:56,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 03:28:56,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035452471] [2024-10-13 03:28:56,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 03:28:56,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 03:28:56,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 03:28:56,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 03:28:56,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 03:28:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 03:28:56,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 03:28:56,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 03:28:56,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 03:28:56,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 03:28:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 03:28:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 03:28:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 03:28:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 03:28:56,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 03:28:56,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 03:28:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:56,708 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 03:28:56,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 03:28:56,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035452471] [2024-10-13 03:28:56,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035452471] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 03:28:56,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 03:28:56,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 03:28:56,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595327934] [2024-10-13 03:28:56,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 03:28:56,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 03:28:56,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 03:28:56,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 03:28:56,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 03:28:56,711 INFO L87 Difference]: Start difference. First operand 70 states and 104 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-13 03:28:56,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 03:28:56,889 INFO L93 Difference]: Finished difference Result 183 states and 271 transitions. [2024-10-13 03:28:56,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 03:28:56,890 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 86 [2024-10-13 03:28:56,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 03:28:56,891 INFO L225 Difference]: With dead ends: 183 [2024-10-13 03:28:56,891 INFO L226 Difference]: Without dead ends: 114 [2024-10-13 03:28:56,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-13 03:28:56,893 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 68 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 03:28:56,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 162 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 03:28:56,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-10-13 03:28:56,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 104. [2024-10-13 03:28:56,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 58 states have (on average 1.2241379310344827) internal successors, (71), 58 states have internal predecessors, (71), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-13 03:28:56,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 155 transitions. [2024-10-13 03:28:56,915 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 155 transitions. Word has length 86 [2024-10-13 03:28:56,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 03:28:56,915 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 155 transitions. [2024-10-13 03:28:56,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-13 03:28:56,915 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 155 transitions. [2024-10-13 03:28:56,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-13 03:28:56,916 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 03:28:56,916 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 03:28:56,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 03:28:56,917 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 03:28:56,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 03:28:56,917 INFO L85 PathProgramCache]: Analyzing trace with hash -20147897, now seen corresponding path program 1 times [2024-10-13 03:28:56,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 03:28:56,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646975727] [2024-10-13 03:28:56,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 03:28:56,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 03:28:56,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:58,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 03:28:58,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:58,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 03:28:58,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:58,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 03:28:58,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:58,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 03:28:58,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:58,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 03:28:58,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:58,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 03:28:58,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:58,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 03:28:58,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:58,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 03:28:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:58,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 03:28:58,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:58,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 03:28:58,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:58,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 03:28:58,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:58,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 03:28:58,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:58,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 03:28:58,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:58,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 03:28:58,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:28:58,637 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 03:28:58,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 03:28:58,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646975727] [2024-10-13 03:28:58,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646975727] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 03:28:58,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 03:28:58,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-13 03:28:58,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124641547] [2024-10-13 03:28:58,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 03:28:58,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 03:28:58,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 03:28:58,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 03:28:58,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-13 03:28:58,642 INFO L87 Difference]: Start difference. First operand 104 states and 155 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 03:28:59,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 03:28:59,068 INFO L93 Difference]: Finished difference Result 120 states and 173 transitions. [2024-10-13 03:28:59,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 03:28:59,069 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 86 [2024-10-13 03:28:59,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 03:28:59,070 INFO L225 Difference]: With dead ends: 120 [2024-10-13 03:28:59,070 INFO L226 Difference]: Without dead ends: 118 [2024-10-13 03:28:59,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2024-10-13 03:28:59,072 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 53 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 03:28:59,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 241 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 03:28:59,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-10-13 03:28:59,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 108. [2024-10-13 03:28:59,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 61 states have (on average 1.1967213114754098) internal successors, (73), 61 states have internal predecessors, (73), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-13 03:28:59,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 157 transitions. [2024-10-13 03:28:59,090 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 157 transitions. Word has length 86 [2024-10-13 03:28:59,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 03:28:59,091 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 157 transitions. [2024-10-13 03:28:59,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 03:28:59,091 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 157 transitions. [2024-10-13 03:28:59,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-13 03:28:59,092 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 03:28:59,092 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 03:28:59,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 03:28:59,092 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 03:28:59,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 03:28:59,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1204557765, now seen corresponding path program 1 times [2024-10-13 03:28:59,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 03:28:59,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235906211] [2024-10-13 03:28:59,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 03:28:59,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 03:28:59,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:07,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 03:29:07,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:07,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 03:29:07,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:07,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 03:29:07,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:07,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 03:29:07,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:07,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 03:29:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:07,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 03:29:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:07,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 03:29:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:07,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 03:29:07,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:07,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 03:29:07,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:07,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 03:29:07,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:07,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 03:29:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:07,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 03:29:07,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:07,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 03:29:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:07,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 03:29:07,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:07,287 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 03:29:07,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 03:29:07,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235906211] [2024-10-13 03:29:07,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235906211] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 03:29:07,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 03:29:07,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-13 03:29:07,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591636823] [2024-10-13 03:29:07,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 03:29:07,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 03:29:07,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 03:29:07,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 03:29:07,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-13 03:29:07,289 INFO L87 Difference]: Start difference. First operand 108 states and 157 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 03:29:07,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 03:29:07,879 INFO L93 Difference]: Finished difference Result 141 states and 193 transitions. [2024-10-13 03:29:07,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 03:29:07,880 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 86 [2024-10-13 03:29:07,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 03:29:07,882 INFO L225 Difference]: With dead ends: 141 [2024-10-13 03:29:07,882 INFO L226 Difference]: Without dead ends: 139 [2024-10-13 03:29:07,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2024-10-13 03:29:07,883 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 65 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 03:29:07,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 244 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 03:29:07,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-10-13 03:29:07,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 112. [2024-10-13 03:29:07,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 65 states have (on average 1.2153846153846153) internal successors, (79), 65 states have internal predecessors, (79), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-13 03:29:07,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 163 transitions. [2024-10-13 03:29:07,911 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 163 transitions. Word has length 86 [2024-10-13 03:29:07,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 03:29:07,912 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 163 transitions. [2024-10-13 03:29:07,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 03:29:07,912 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 163 transitions. [2024-10-13 03:29:07,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-13 03:29:07,915 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 03:29:07,915 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 03:29:07,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 03:29:07,915 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 03:29:07,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 03:29:07,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1206404807, now seen corresponding path program 1 times [2024-10-13 03:29:07,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 03:29:07,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349117646] [2024-10-13 03:29:07,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 03:29:07,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 03:29:07,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:07,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 03:29:08,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:08,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 03:29:08,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:08,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 03:29:08,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:08,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 03:29:08,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:08,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 03:29:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:08,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 03:29:08,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:08,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 03:29:08,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:08,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 03:29:08,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:08,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 03:29:08,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:08,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 03:29:08,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:08,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 03:29:08,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:08,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 03:29:08,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:08,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 03:29:08,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:08,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 03:29:08,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:08,029 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 03:29:08,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 03:29:08,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349117646] [2024-10-13 03:29:08,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349117646] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 03:29:08,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 03:29:08,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 03:29:08,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382040029] [2024-10-13 03:29:08,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 03:29:08,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 03:29:08,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 03:29:08,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 03:29:08,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 03:29:08,033 INFO L87 Difference]: Start difference. First operand 112 states and 163 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 03:29:08,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 03:29:08,126 INFO L93 Difference]: Finished difference Result 185 states and 260 transitions. [2024-10-13 03:29:08,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 03:29:08,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 86 [2024-10-13 03:29:08,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 03:29:08,128 INFO L225 Difference]: With dead ends: 185 [2024-10-13 03:29:08,129 INFO L226 Difference]: Without dead ends: 147 [2024-10-13 03:29:08,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 03:29:08,131 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 61 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 03:29:08,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 140 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 03:29:08,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-10-13 03:29:08,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 125. [2024-10-13 03:29:08,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 75 states have (on average 1.1733333333333333) internal successors, (88), 75 states have internal predecessors, (88), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-13 03:29:08,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 172 transitions. [2024-10-13 03:29:08,154 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 172 transitions. Word has length 86 [2024-10-13 03:29:08,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 03:29:08,154 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 172 transitions. [2024-10-13 03:29:08,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 03:29:08,155 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 172 transitions. [2024-10-13 03:29:08,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-13 03:29:08,158 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 03:29:08,159 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 03:29:08,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 03:29:08,159 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 03:29:08,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 03:29:08,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1261816067, now seen corresponding path program 1 times [2024-10-13 03:29:08,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 03:29:08,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3187947] [2024-10-13 03:29:08,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 03:29:08,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 03:29:08,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:13,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 03:29:13,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:13,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 03:29:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:13,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 03:29:13,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:13,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 03:29:13,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:13,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 03:29:13,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:13,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 03:29:13,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:13,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 03:29:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:13,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 03:29:13,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:13,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 03:29:13,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:13,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 03:29:13,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:13,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 03:29:13,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:13,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 03:29:13,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:13,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 03:29:13,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:13,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 03:29:13,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:13,976 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 03:29:13,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 03:29:13,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3187947] [2024-10-13 03:29:13,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3187947] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 03:29:13,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 03:29:13,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-13 03:29:13,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150581637] [2024-10-13 03:29:13,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 03:29:13,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 03:29:13,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 03:29:13,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 03:29:13,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-10-13 03:29:13,978 INFO L87 Difference]: Start difference. First operand 125 states and 172 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 03:29:14,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 03:29:14,376 INFO L93 Difference]: Finished difference Result 200 states and 274 transitions. [2024-10-13 03:29:14,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 03:29:14,377 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 86 [2024-10-13 03:29:14,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 03:29:14,378 INFO L225 Difference]: With dead ends: 200 [2024-10-13 03:29:14,379 INFO L226 Difference]: Without dead ends: 159 [2024-10-13 03:29:14,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-10-13 03:29:14,380 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 67 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 03:29:14,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 234 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 03:29:14,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-10-13 03:29:14,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 126. [2024-10-13 03:29:14,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 76 states have (on average 1.1842105263157894) internal successors, (90), 76 states have internal predecessors, (90), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-13 03:29:14,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 174 transitions. [2024-10-13 03:29:14,401 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 174 transitions. Word has length 86 [2024-10-13 03:29:14,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 03:29:14,402 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 174 transitions. [2024-10-13 03:29:14,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 03:29:14,402 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 174 transitions. [2024-10-13 03:29:14,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-13 03:29:14,403 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 03:29:14,403 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 03:29:14,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 03:29:14,403 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 03:29:14,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 03:29:14,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1263663109, now seen corresponding path program 1 times [2024-10-13 03:29:14,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 03:29:14,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994955380] [2024-10-13 03:29:14,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 03:29:14,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 03:29:14,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:18,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 03:29:18,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:18,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 03:29:18,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:18,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 03:29:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:18,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 03:29:18,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:18,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 03:29:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:18,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 03:29:18,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:18,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 03:29:18,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:18,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 03:29:18,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:18,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 03:29:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:18,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 03:29:18,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:18,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 03:29:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:18,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 03:29:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:18,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 03:29:18,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:18,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 03:29:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:18,186 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 03:29:18,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 03:29:18,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994955380] [2024-10-13 03:29:18,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994955380] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 03:29:18,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 03:29:18,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-13 03:29:18,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259342252] [2024-10-13 03:29:18,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 03:29:18,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 03:29:18,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 03:29:18,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 03:29:18,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-10-13 03:29:18,188 INFO L87 Difference]: Start difference. First operand 126 states and 174 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 03:29:18,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 03:29:18,476 INFO L93 Difference]: Finished difference Result 151 states and 202 transitions. [2024-10-13 03:29:18,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 03:29:18,476 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 86 [2024-10-13 03:29:18,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 03:29:18,477 INFO L225 Difference]: With dead ends: 151 [2024-10-13 03:29:18,478 INFO L226 Difference]: Without dead ends: 149 [2024-10-13 03:29:18,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-10-13 03:29:18,478 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 63 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 03:29:18,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 226 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 03:29:18,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-10-13 03:29:18,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 125. [2024-10-13 03:29:18,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 75 states have (on average 1.1733333333333333) internal successors, (88), 75 states have internal predecessors, (88), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-13 03:29:18,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 172 transitions. [2024-10-13 03:29:18,494 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 172 transitions. Word has length 86 [2024-10-13 03:29:18,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 03:29:18,495 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 172 transitions. [2024-10-13 03:29:18,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 03:29:18,495 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 172 transitions. [2024-10-13 03:29:18,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-13 03:29:18,495 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 03:29:18,496 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 03:29:18,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 03:29:18,496 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 03:29:18,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 03:29:18,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1313450494, now seen corresponding path program 1 times [2024-10-13 03:29:18,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 03:29:18,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697074897] [2024-10-13 03:29:18,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 03:29:18,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 03:29:18,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:19,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 03:29:19,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:19,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 03:29:19,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:19,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 03:29:19,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:19,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 03:29:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:19,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 03:29:19,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:19,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 03:29:19,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:19,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 03:29:19,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:19,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 03:29:19,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:19,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 03:29:19,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:19,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 03:29:19,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:19,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 03:29:19,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:19,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 03:29:19,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:19,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 03:29:19,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:19,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 03:29:19,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:19,967 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 03:29:19,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 03:29:19,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697074897] [2024-10-13 03:29:19,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697074897] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 03:29:19,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 03:29:19,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-13 03:29:19,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176452382] [2024-10-13 03:29:19,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 03:29:19,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 03:29:19,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 03:29:19,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 03:29:19,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-10-13 03:29:19,969 INFO L87 Difference]: Start difference. First operand 125 states and 172 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-13 03:29:20,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 03:29:20,670 INFO L93 Difference]: Finished difference Result 152 states and 202 transitions. [2024-10-13 03:29:20,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-13 03:29:20,671 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 87 [2024-10-13 03:29:20,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 03:29:20,672 INFO L225 Difference]: With dead ends: 152 [2024-10-13 03:29:20,672 INFO L226 Difference]: Without dead ends: 150 [2024-10-13 03:29:20,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-10-13 03:29:20,673 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 91 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 03:29:20,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 210 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 03:29:20,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-10-13 03:29:20,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 127. [2024-10-13 03:29:20,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 77 states have (on average 1.1818181818181819) internal successors, (91), 77 states have internal predecessors, (91), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-13 03:29:20,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 175 transitions. [2024-10-13 03:29:20,683 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 175 transitions. Word has length 87 [2024-10-13 03:29:20,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 03:29:20,684 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 175 transitions. [2024-10-13 03:29:20,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-13 03:29:20,684 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 175 transitions. [2024-10-13 03:29:20,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-13 03:29:20,684 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 03:29:20,685 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 03:29:20,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 03:29:20,685 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 03:29:20,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 03:29:20,685 INFO L85 PathProgramCache]: Analyzing trace with hash 461556868, now seen corresponding path program 1 times [2024-10-13 03:29:20,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 03:29:20,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966248939] [2024-10-13 03:29:20,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 03:29:20,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 03:29:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:30,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 03:29:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:30,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 03:29:30,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:30,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 03:29:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:30,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 03:29:30,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:30,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 03:29:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:30,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 03:29:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:30,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 03:29:30,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:30,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 03:29:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:30,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 03:29:30,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:30,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 03:29:30,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:30,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 03:29:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:30,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 03:29:30,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:30,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 03:29:30,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:30,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 03:29:30,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:30,380 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 03:29:30,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 03:29:30,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966248939] [2024-10-13 03:29:30,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966248939] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 03:29:30,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 03:29:30,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-13 03:29:30,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963090670] [2024-10-13 03:29:30,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 03:29:30,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 03:29:30,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 03:29:30,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 03:29:30,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-10-13 03:29:30,382 INFO L87 Difference]: Start difference. First operand 127 states and 175 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 03:29:30,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 03:29:30,778 INFO L93 Difference]: Finished difference Result 156 states and 207 transitions. [2024-10-13 03:29:30,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-13 03:29:30,779 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 87 [2024-10-13 03:29:30,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 03:29:30,779 INFO L225 Difference]: With dead ends: 156 [2024-10-13 03:29:30,780 INFO L226 Difference]: Without dead ends: 154 [2024-10-13 03:29:30,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-10-13 03:29:30,780 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 65 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 03:29:30,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 227 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 03:29:30,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-10-13 03:29:30,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 127. [2024-10-13 03:29:30,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 77 states have (on average 1.1818181818181819) internal successors, (91), 77 states have internal predecessors, (91), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-13 03:29:30,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 175 transitions. [2024-10-13 03:29:30,790 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 175 transitions. Word has length 87 [2024-10-13 03:29:30,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 03:29:30,791 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 175 transitions. [2024-10-13 03:29:30,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 03:29:30,791 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 175 transitions. [2024-10-13 03:29:30,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-13 03:29:30,791 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 03:29:30,792 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 03:29:30,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 03:29:30,792 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 03:29:30,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 03:29:30,792 INFO L85 PathProgramCache]: Analyzing trace with hash 518815170, now seen corresponding path program 1 times [2024-10-13 03:29:30,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 03:29:30,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402655907] [2024-10-13 03:29:30,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 03:29:30,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 03:29:30,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:32,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 03:29:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:32,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 03:29:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:32,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 03:29:32,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:32,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 03:29:32,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:32,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 03:29:32,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:32,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 03:29:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:32,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 03:29:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:32,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 03:29:32,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:32,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 03:29:32,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:32,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 03:29:32,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:32,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 03:29:32,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:32,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 03:29:32,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:32,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 03:29:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:32,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 03:29:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:32,196 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 03:29:32,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 03:29:32,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402655907] [2024-10-13 03:29:32,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402655907] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 03:29:32,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 03:29:32,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-13 03:29:32,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200794510] [2024-10-13 03:29:32,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 03:29:32,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 03:29:32,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 03:29:32,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 03:29:32,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-10-13 03:29:32,198 INFO L87 Difference]: Start difference. First operand 127 states and 175 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 03:29:32,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 03:29:32,572 INFO L93 Difference]: Finished difference Result 152 states and 203 transitions. [2024-10-13 03:29:32,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-13 03:29:32,573 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 87 [2024-10-13 03:29:32,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 03:29:32,574 INFO L225 Difference]: With dead ends: 152 [2024-10-13 03:29:32,574 INFO L226 Difference]: Without dead ends: 150 [2024-10-13 03:29:32,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-10-13 03:29:32,575 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 60 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 03:29:32,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 234 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 03:29:32,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-10-13 03:29:32,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 125. [2024-10-13 03:29:32,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 75 states have (on average 1.1733333333333333) internal successors, (88), 75 states have internal predecessors, (88), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-13 03:29:32,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 172 transitions. [2024-10-13 03:29:32,590 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 172 transitions. Word has length 87 [2024-10-13 03:29:32,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 03:29:32,590 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 172 transitions. [2024-10-13 03:29:32,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 03:29:32,590 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 172 transitions. [2024-10-13 03:29:32,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-13 03:29:32,592 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 03:29:32,592 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 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] [2024-10-13 03:29:32,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 03:29:32,592 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 03:29:32,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 03:29:32,593 INFO L85 PathProgramCache]: Analyzing trace with hash 324235561, now seen corresponding path program 1 times [2024-10-13 03:29:32,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 03:29:32,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228474145] [2024-10-13 03:29:32,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 03:29:32,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 03:29:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 03:29:37,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 03:29:37,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 03:29:37,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 03:29:37,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 03:29:37,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 03:29:37,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 03:29:37,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 03:29:37,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 03:29:37,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 03:29:37,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 03:29:37,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 03:29:37,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 03:29:37,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 03:29:37,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-13 03:29:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 03:29:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 03:29:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-13 03:29:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-13 03:29:37,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-13 03:29:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-13 03:29:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-13 03:29:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-13 03:29:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-13 03:29:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-13 03:29:37,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-13 03:29:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-13 03:29:37,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-13 03:29:37,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1539 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1534 trivial. 0 not checked. [2024-10-13 03:29:37,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 03:29:37,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228474145] [2024-10-13 03:29:37,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228474145] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 03:29:37,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420016976] [2024-10-13 03:29:37,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 03:29:37,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 03:29:37,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 03:29:37,349 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) [2024-10-13 03:29:37,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 03:29:37,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:37,422 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 03:29:37,436 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 03:29:37,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1539 backedges. 785 proven. 33 refuted. 0 times theorem prover too weak. 721 trivial. 0 not checked. [2024-10-13 03:29:37,614 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 03:29:37,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1539 backedges. 70 proven. 33 refuted. 0 times theorem prover too weak. 1436 trivial. 0 not checked. [2024-10-13 03:29:37,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420016976] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 03:29:37,805 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 03:29:37,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 14 [2024-10-13 03:29:37,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252495869] [2024-10-13 03:29:37,805 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 03:29:37,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-13 03:29:37,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 03:29:37,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-13 03:29:37,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-10-13 03:29:37,808 INFO L87 Difference]: Start difference. First operand 125 states and 172 transitions. Second operand has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 3 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-10-13 03:29:38,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 03:29:38,706 INFO L93 Difference]: Finished difference Result 238 states and 312 transitions. [2024-10-13 03:29:38,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-13 03:29:38,707 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 3 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 170 [2024-10-13 03:29:38,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 03:29:38,708 INFO L225 Difference]: With dead ends: 238 [2024-10-13 03:29:38,708 INFO L226 Difference]: Without dead ends: 195 [2024-10-13 03:29:38,709 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=176, Invalid=580, Unknown=0, NotChecked=0, Total=756 [2024-10-13 03:29:38,709 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 113 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 03:29:38,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 144 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 03:29:38,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-10-13 03:29:38,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 140. [2024-10-13 03:29:38,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 87 states have (on average 1.1494252873563218) internal successors, (100), 87 states have internal predecessors, (100), 42 states have call successors, (42), 10 states have call predecessors, (42), 10 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-13 03:29:38,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 184 transitions. [2024-10-13 03:29:38,735 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 184 transitions. Word has length 170 [2024-10-13 03:29:38,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 03:29:38,736 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 184 transitions. [2024-10-13 03:29:38,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 3 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-10-13 03:29:38,737 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 184 transitions. [2024-10-13 03:29:38,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-13 03:29:38,739 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 03:29:38,740 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 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] [2024-10-13 03:29:38,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-13 03:29:38,943 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 [2024-10-13 03:29:38,944 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 03:29:38,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 03:29:38,945 INFO L85 PathProgramCache]: Analyzing trace with hash -774169141, now seen corresponding path program 1 times [2024-10-13 03:29:38,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 03:29:38,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198624437] [2024-10-13 03:29:38,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 03:29:38,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 03:29:39,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 03:29:49,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 03:29:49,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-13 03:29:49,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 03:29:49,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 03:29:49,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 03:29:49,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 03:29:49,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-13 03:29:49,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 03:29:49,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-13 03:29:49,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-13 03:29:49,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 03:29:49,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 03:29:49,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-13 03:29:49,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-13 03:29:49,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 03:29:49,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 03:29:49,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-13 03:29:49,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-13 03:29:49,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-13 03:29:49,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-13 03:29:49,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-13 03:29:49,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-13 03:29:49,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-13 03:29:49,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-13 03:29:49,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-13 03:29:49,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-13 03:29:49,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-13 03:29:49,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 1513 trivial. 0 not checked. [2024-10-13 03:29:49,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 03:29:49,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198624437] [2024-10-13 03:29:49,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198624437] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 03:29:49,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531002220] [2024-10-13 03:29:49,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 03:29:49,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 03:29:49,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 03:29:49,896 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) [2024-10-13 03:29:49,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 03:29:49,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 03:29:49,974 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-10-13 03:29:49,978 INFO L278 TraceCheckSpWp]: Computing forward predicates...