./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_fillercode_fillercodestructure_filler-ps-ci_file-34.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 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_fillercode_fillercodestructure_filler-ps-ci_file-34.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 8509af5ddea8b4969815a398e5f07c16448270bd1737b92218393c93b8a3a0c1 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 05:07:21,643 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 05:07:21,724 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 05:07:21,732 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 05:07:21,732 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 05:07:21,764 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 05:07:21,764 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 05:07:21,765 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 05:07:21,766 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 05:07:21,766 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 05:07:21,766 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 05:07:21,767 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 05:07:21,767 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 05:07:21,768 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 05:07:21,768 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 05:07:21,769 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 05:07:21,769 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 05:07:21,769 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 05:07:21,771 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 05:07:21,772 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 05:07:21,772 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 05:07:21,775 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 05:07:21,775 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 05:07:21,775 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 05:07:21,776 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 05:07:21,776 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 05:07:21,776 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 05:07:21,776 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 05:07:21,777 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 05:07:21,777 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 05:07:21,777 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 05:07:21,777 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 05:07:21,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 05:07:21,779 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 05:07:21,792 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 05:07:21,792 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 05:07:21,793 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 05:07:21,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 05:07:21,793 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 05:07:21,794 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 05:07:21,794 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 05:07:21,794 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 05:07:21,794 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8509af5ddea8b4969815a398e5f07c16448270bd1737b92218393c93b8a3a0c1 [2024-11-20 05:07:22,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 05:07:22,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 05:07:22,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 05:07:22,070 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 05:07:22,071 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 05:07:22,072 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-34.i [2024-11-20 05:07:23,560 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 05:07:23,760 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 05:07:23,761 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-34.i [2024-11-20 05:07:23,772 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2469b2b95/3b751bb468fa46cdb0e956679ce02e91/FLAGbd946ecef [2024-11-20 05:07:24,117 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2469b2b95/3b751bb468fa46cdb0e956679ce02e91 [2024-11-20 05:07:24,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 05:07:24,121 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 05:07:24,122 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 05:07:24,122 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 05:07:24,129 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 05:07:24,130 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:07:24" (1/1) ... [2024-11-20 05:07:24,131 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65e202b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:24, skipping insertion in model container [2024-11-20 05:07:24,131 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:07:24" (1/1) ... [2024-11-20 05:07:24,178 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 05:07:24,348 WARN L250 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_fillercode_fillercodestructure_filler-ps-ci_file-34.i[919,932] [2024-11-20 05:07:24,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 05:07:24,441 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 05:07:24,451 WARN L250 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_fillercode_fillercodestructure_filler-ps-ci_file-34.i[919,932] [2024-11-20 05:07:24,496 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 05:07:24,522 INFO L204 MainTranslator]: Completed translation [2024-11-20 05:07:24,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:24 WrapperNode [2024-11-20 05:07:24,526 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 05:07:24,527 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 05:07:24,527 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 05:07:24,527 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 05:07:24,534 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:24" (1/1) ... [2024-11-20 05:07:24,546 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:24" (1/1) ... [2024-11-20 05:07:24,594 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 229 [2024-11-20 05:07:24,595 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 05:07:24,596 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 05:07:24,596 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 05:07:24,596 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 05:07:24,608 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:24" (1/1) ... [2024-11-20 05:07:24,608 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:24" (1/1) ... [2024-11-20 05:07:24,614 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:24" (1/1) ... [2024-11-20 05:07:24,640 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]. [2024-11-20 05:07:24,641 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:24" (1/1) ... [2024-11-20 05:07:24,641 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:24" (1/1) ... [2024-11-20 05:07:24,661 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:24" (1/1) ... [2024-11-20 05:07:24,669 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:24" (1/1) ... [2024-11-20 05:07:24,680 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:24" (1/1) ... [2024-11-20 05:07:24,682 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:24" (1/1) ... [2024-11-20 05:07:24,691 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 05:07:24,694 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 05:07:24,694 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 05:07:24,694 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 05:07:24,695 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:24" (1/1) ... [2024-11-20 05:07:24,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 05:07:24,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 05:07:24,731 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) [2024-11-20 05:07:24,734 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 [2024-11-20 05:07:24,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 05:07:24,788 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 05:07:24,789 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 05:07:24,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 05:07:24,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 05:07:24,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 05:07:24,880 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 05:07:24,881 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 05:07:25,397 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-20 05:07:25,397 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 05:07:25,414 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 05:07:25,417 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 05:07:25,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:07:25 BoogieIcfgContainer [2024-11-20 05:07:25,418 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 05:07:25,420 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 05:07:25,420 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 05:07:25,425 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 05:07:25,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:07:24" (1/3) ... [2024-11-20 05:07:25,426 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7352ceeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:07:25, skipping insertion in model container [2024-11-20 05:07:25,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:07:24" (2/3) ... [2024-11-20 05:07:25,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7352ceeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:07:25, skipping insertion in model container [2024-11-20 05:07:25,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:07:25" (3/3) ... [2024-11-20 05:07:25,429 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-34.i [2024-11-20 05:07:25,446 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 05:07:25,446 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 05:07:25,515 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 05:07:25,521 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;@7931ec53, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 05:07:25,521 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 05:07:25,526 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 70 states have (on average 1.5142857142857142) internal successors, (106), 71 states have internal predecessors, (106), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-20 05:07:25,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-20 05:07:25,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:07:25,543 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:07:25,544 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:07:25,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:07:25,550 INFO L85 PathProgramCache]: Analyzing trace with hash -2045569818, now seen corresponding path program 1 times [2024-11-20 05:07:25,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:07:25,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038097307] [2024-11-20 05:07:25,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:07:25,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:07:25,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:25,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:07:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:25,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:07:25,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:25,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 05:07:25,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:25,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:07:25,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:25,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:07:25,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:25,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:07:25,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:25,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:07:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:07:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:07:26,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:07:26,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 05:07:26,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 05:07:26,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 05:07:26,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 05:07:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:07:26,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:07:26,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 05:07:26,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:07:26,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 05:07:26,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 05:07:26,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,105 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 05:07:26,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:07:26,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038097307] [2024-11-20 05:07:26,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038097307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:07:26,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:07:26,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 05:07:26,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648371799] [2024-11-20 05:07:26,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:07:26,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 05:07:26,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:07:26,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 05:07:26,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 05:07:26,151 INFO L87 Difference]: Start difference. First operand has 93 states, 70 states have (on average 1.5142857142857142) internal successors, (106), 71 states have internal predecessors, (106), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-20 05:07:26,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:07:26,185 INFO L93 Difference]: Finished difference Result 179 states and 306 transitions. [2024-11-20 05:07:26,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 05:07:26,188 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 141 [2024-11-20 05:07:26,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:07:26,198 INFO L225 Difference]: With dead ends: 179 [2024-11-20 05:07:26,198 INFO L226 Difference]: Without dead ends: 89 [2024-11-20 05:07:26,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 05:07:26,206 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 05:07:26,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 05:07:26,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-20 05:07:26,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-11-20 05:07:26,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 67 states have (on average 1.4776119402985075) internal successors, (99), 67 states have internal predecessors, (99), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-20 05:07:26,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 139 transitions. [2024-11-20 05:07:26,270 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 139 transitions. Word has length 141 [2024-11-20 05:07:26,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:07:26,271 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 139 transitions. [2024-11-20 05:07:26,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-20 05:07:26,273 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 139 transitions. [2024-11-20 05:07:26,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-20 05:07:26,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:07:26,278 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:07:26,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 05:07:26,279 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:07:26,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:07:26,280 INFO L85 PathProgramCache]: Analyzing trace with hash 707075114, now seen corresponding path program 1 times [2024-11-20 05:07:26,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:07:26,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903119707] [2024-11-20 05:07:26,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:07:26,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:07:26,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:07:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:07:26,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 05:07:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:07:26,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:07:26,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:07:26,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:07:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:07:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:07:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:07:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 05:07:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 05:07:26,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 05:07:26,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 05:07:26,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:07:26,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:07:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 05:07:26,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:07:26,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 05:07:26,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 05:07:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:26,996 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 05:07:26,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:07:26,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903119707] [2024-11-20 05:07:26,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903119707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:07:26,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:07:26,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 05:07:27,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455901104] [2024-11-20 05:07:27,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:07:27,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 05:07:27,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:07:27,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 05:07:27,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 05:07:27,006 INFO L87 Difference]: Start difference. First operand 89 states and 139 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 05:07:27,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:07:27,226 INFO L93 Difference]: Finished difference Result 291 states and 456 transitions. [2024-11-20 05:07:27,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 05:07:27,227 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 141 [2024-11-20 05:07:27,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:07:27,233 INFO L225 Difference]: With dead ends: 291 [2024-11-20 05:07:27,233 INFO L226 Difference]: Without dead ends: 205 [2024-11-20 05:07:27,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 05:07:27,235 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 206 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 05:07:27,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 395 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 05:07:27,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-20 05:07:27,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 175. [2024-11-20 05:07:27,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 132 states have (on average 1.4772727272727273) internal successors, (195), 132 states have internal predecessors, (195), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-20 05:07:27,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 275 transitions. [2024-11-20 05:07:27,296 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 275 transitions. Word has length 141 [2024-11-20 05:07:27,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:07:27,297 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 275 transitions. [2024-11-20 05:07:27,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 05:07:27,297 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 275 transitions. [2024-11-20 05:07:27,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-20 05:07:27,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:07:27,302 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:07:27,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 05:07:27,303 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:07:27,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:07:27,306 INFO L85 PathProgramCache]: Analyzing trace with hash -415764853, now seen corresponding path program 1 times [2024-11-20 05:07:27,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:07:27,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057751404] [2024-11-20 05:07:27,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:07:27,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:07:27,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:27,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:07:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:27,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:07:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:27,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 05:07:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:27,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:07:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:27,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:07:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:27,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:07:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:27,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:07:27,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:27,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:07:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:27,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:07:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:27,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:07:27,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:27,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 05:07:27,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:27,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 05:07:27,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:27,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 05:07:27,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:27,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 05:07:27,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:27,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:07:27,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:27,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:07:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:27,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 05:07:27,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:27,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:07:27,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:27,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 05:07:27,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:27,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 05:07:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:27,742 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 05:07:27,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:07:27,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057751404] [2024-11-20 05:07:27,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057751404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:07:27,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:07:27,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 05:07:27,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836963025] [2024-11-20 05:07:27,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:07:27,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 05:07:27,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:07:27,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 05:07:27,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 05:07:27,749 INFO L87 Difference]: Start difference. First operand 175 states and 275 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 05:07:28,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:07:28,074 INFO L93 Difference]: Finished difference Result 514 states and 808 transitions. [2024-11-20 05:07:28,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 05:07:28,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 142 [2024-11-20 05:07:28,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:07:28,081 INFO L225 Difference]: With dead ends: 514 [2024-11-20 05:07:28,081 INFO L226 Difference]: Without dead ends: 342 [2024-11-20 05:07:28,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 05:07:28,083 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 182 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 05:07:28,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 451 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 05:07:28,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2024-11-20 05:07:28,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 179. [2024-11-20 05:07:28,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 136 states have (on average 1.463235294117647) internal successors, (199), 136 states have internal predecessors, (199), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-20 05:07:28,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 279 transitions. [2024-11-20 05:07:28,128 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 279 transitions. Word has length 142 [2024-11-20 05:07:28,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:07:28,128 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 279 transitions. [2024-11-20 05:07:28,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 05:07:28,129 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 279 transitions. [2024-11-20 05:07:28,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-20 05:07:28,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:07:28,134 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:07:28,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 05:07:28,135 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:07:28,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:07:28,135 INFO L85 PathProgramCache]: Analyzing trace with hash 85879794, now seen corresponding path program 1 times [2024-11-20 05:07:28,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:07:28,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777912870] [2024-11-20 05:07:28,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:07:28,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:07:28,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:33,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:07:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:33,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:07:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:33,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 05:07:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:33,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:07:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:33,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:07:33,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:33,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:07:33,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:33,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:07:33,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:33,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:07:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:33,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:07:33,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:33,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:07:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:33,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 05:07:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:33,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 05:07:33,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:33,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 05:07:33,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:33,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 05:07:33,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:33,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:07:33,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:33,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:07:33,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:33,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 05:07:33,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:33,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:07:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:33,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 05:07:33,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:33,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 05:07:33,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:33,278 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 05:07:33,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:07:33,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777912870] [2024-11-20 05:07:33,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777912870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:07:33,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:07:33,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 05:07:33,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249986023] [2024-11-20 05:07:33,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:07:33,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 05:07:33,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:07:33,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 05:07:33,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-20 05:07:33,283 INFO L87 Difference]: Start difference. First operand 179 states and 279 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 05:07:37,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:07:37,398 INFO L93 Difference]: Finished difference Result 557 states and 834 transitions. [2024-11-20 05:07:37,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-20 05:07:37,399 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 143 [2024-11-20 05:07:37,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:07:37,402 INFO L225 Difference]: With dead ends: 557 [2024-11-20 05:07:37,402 INFO L226 Difference]: Without dead ends: 381 [2024-11-20 05:07:37,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=125, Invalid=255, Unknown=0, NotChecked=0, Total=380 [2024-11-20 05:07:37,404 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 701 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-20 05:07:37,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [701 Valid, 445 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-20 05:07:37,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-20 05:07:37,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 247. [2024-11-20 05:07:37,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 192 states have (on average 1.4322916666666667) internal successors, (275), 194 states have internal predecessors, (275), 50 states have call successors, (50), 4 states have call predecessors, (50), 4 states have return successors, (50), 48 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-20 05:07:37,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 375 transitions. [2024-11-20 05:07:37,442 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 375 transitions. Word has length 143 [2024-11-20 05:07:37,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:07:37,444 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 375 transitions. [2024-11-20 05:07:37,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 05:07:37,444 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 375 transitions. [2024-11-20 05:07:37,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-20 05:07:37,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:07:37,448 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:07:37,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 05:07:37,448 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:07:37,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:07:37,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1860887156, now seen corresponding path program 1 times [2024-11-20 05:07:37,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:07:37,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770161647] [2024-11-20 05:07:37,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:07:37,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:07:37,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:40,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:07:40,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:40,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:07:40,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:40,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 05:07:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:40,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:07:40,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:40,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:07:40,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:40,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:07:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:40,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:07:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:40,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:07:40,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:40,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:07:40,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:40,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:07:40,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:40,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 05:07:40,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:40,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 05:07:40,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:40,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 05:07:40,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:40,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 05:07:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:40,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:07:40,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:40,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:07:40,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:40,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 05:07:40,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:40,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:07:40,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:40,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 05:07:40,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:40,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 05:07:40,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:40,206 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 05:07:40,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:07:40,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770161647] [2024-11-20 05:07:40,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770161647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:07:40,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:07:40,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 05:07:40,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079625529] [2024-11-20 05:07:40,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:07:40,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 05:07:40,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:07:40,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 05:07:40,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-20 05:07:40,209 INFO L87 Difference]: Start difference. First operand 247 states and 375 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 05:07:41,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:07:41,451 INFO L93 Difference]: Finished difference Result 873 states and 1310 transitions. [2024-11-20 05:07:41,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 05:07:41,452 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 143 [2024-11-20 05:07:41,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:07:41,461 INFO L225 Difference]: With dead ends: 873 [2024-11-20 05:07:41,461 INFO L226 Difference]: Without dead ends: 629 [2024-11-20 05:07:41,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-20 05:07:41,463 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 394 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 05:07:41,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 495 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 05:07:41,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2024-11-20 05:07:41,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 345. [2024-11-20 05:07:41,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 269 states have (on average 1.4349442379182156) internal successors, (386), 271 states have internal predecessors, (386), 70 states have call successors, (70), 5 states have call predecessors, (70), 5 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-20 05:07:41,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 526 transitions. [2024-11-20 05:07:41,516 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 526 transitions. Word has length 143 [2024-11-20 05:07:41,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:07:41,517 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 526 transitions. [2024-11-20 05:07:41,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 05:07:41,517 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 526 transitions. [2024-11-20 05:07:41,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-20 05:07:41,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:07:41,519 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:07:41,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 05:07:41,519 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:07:41,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:07:41,520 INFO L85 PathProgramCache]: Analyzing trace with hash 765938164, now seen corresponding path program 1 times [2024-11-20 05:07:41,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:07:41,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166856414] [2024-11-20 05:07:41,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:07:41,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:07:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:44,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:07:44,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:44,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:07:44,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:44,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 05:07:44,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:44,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:07:44,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:44,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:07:44,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:44,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:07:44,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:44,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:07:44,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:44,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:07:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:44,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:07:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:44,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:07:44,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:44,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 05:07:44,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:44,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 05:07:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:44,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 05:07:44,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:44,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 05:07:44,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:44,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:07:44,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:44,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:07:44,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:44,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 05:07:44,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:44,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:07:44,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:44,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 05:07:44,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:44,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 05:07:44,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:44,631 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 05:07:44,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:07:44,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166856414] [2024-11-20 05:07:44,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166856414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:07:44,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:07:44,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 05:07:44,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075066040] [2024-11-20 05:07:44,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:07:44,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 05:07:44,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:07:44,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 05:07:44,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-20 05:07:44,635 INFO L87 Difference]: Start difference. First operand 345 states and 526 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 05:07:45,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:07:45,507 INFO L93 Difference]: Finished difference Result 925 states and 1375 transitions. [2024-11-20 05:07:45,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 05:07:45,507 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 143 [2024-11-20 05:07:45,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:07:45,512 INFO L225 Difference]: With dead ends: 925 [2024-11-20 05:07:45,512 INFO L226 Difference]: Without dead ends: 638 [2024-11-20 05:07:45,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-20 05:07:45,514 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 365 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 05:07:45,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 452 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 05:07:45,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2024-11-20 05:07:45,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 498. [2024-11-20 05:07:45,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 422 states have (on average 1.4454976303317535) internal successors, (610), 424 states have internal predecessors, (610), 70 states have call successors, (70), 5 states have call predecessors, (70), 5 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-20 05:07:45,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 750 transitions. [2024-11-20 05:07:45,560 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 750 transitions. Word has length 143 [2024-11-20 05:07:45,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:07:45,561 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 750 transitions. [2024-11-20 05:07:45,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 05:07:45,563 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 750 transitions. [2024-11-20 05:07:45,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-20 05:07:45,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:07:45,565 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:07:45,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 05:07:45,565 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:07:45,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:07:45,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1184253277, now seen corresponding path program 1 times [2024-11-20 05:07:45,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:07:45,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286546008] [2024-11-20 05:07:45,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:07:45,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:07:45,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:07:47,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:07:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 05:07:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:07:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:07:47,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:07:47,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:07:47,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:07:47,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:07:47,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:07:47,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 05:07:47,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 05:07:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 05:07:47,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 05:07:47,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:07:47,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:07:47,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 05:07:47,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:07:47,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 05:07:47,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 05:07:47,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,163 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 05:07:47,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:07:47,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286546008] [2024-11-20 05:07:47,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286546008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:07:47,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:07:47,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 05:07:47,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214702350] [2024-11-20 05:07:47,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:07:47,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 05:07:47,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:07:47,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 05:07:47,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 05:07:47,165 INFO L87 Difference]: Start difference. First operand 498 states and 750 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 05:07:47,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:07:47,570 INFO L93 Difference]: Finished difference Result 964 states and 1434 transitions. [2024-11-20 05:07:47,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 05:07:47,571 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 143 [2024-11-20 05:07:47,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:07:47,574 INFO L225 Difference]: With dead ends: 964 [2024-11-20 05:07:47,575 INFO L226 Difference]: Without dead ends: 674 [2024-11-20 05:07:47,576 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-20 05:07:47,576 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 208 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 05:07:47,577 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 487 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 05:07:47,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2024-11-20 05:07:47,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 504. [2024-11-20 05:07:47,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 428 states have (on average 1.4345794392523366) internal successors, (614), 430 states have internal predecessors, (614), 70 states have call successors, (70), 5 states have call predecessors, (70), 5 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-20 05:07:47,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 754 transitions. [2024-11-20 05:07:47,615 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 754 transitions. Word has length 143 [2024-11-20 05:07:47,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:07:47,615 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 754 transitions. [2024-11-20 05:07:47,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 05:07:47,616 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 754 transitions. [2024-11-20 05:07:47,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-20 05:07:47,617 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:07:47,617 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:07:47,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 05:07:47,617 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:07:47,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:07:47,618 INFO L85 PathProgramCache]: Analyzing trace with hash 849769906, now seen corresponding path program 1 times [2024-11-20 05:07:47,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:07:47,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679810011] [2024-11-20 05:07:47,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:07:47,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:07:47,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:07:47,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:07:47,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 05:07:47,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:07:47,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:07:47,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:07:47,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:07:47,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:07:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:07:47,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:07:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 05:07:47,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 05:07:47,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:47,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 05:07:47,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:48,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 05:07:48,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:48,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:07:48,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:48,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:07:48,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:48,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 05:07:48,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:48,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:07:48,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:48,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 05:07:48,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:48,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 05:07:48,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:48,033 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 05:07:48,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:07:48,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679810011] [2024-11-20 05:07:48,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679810011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:07:48,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:07:48,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 05:07:48,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292839853] [2024-11-20 05:07:48,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:07:48,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 05:07:48,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:07:48,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 05:07:48,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 05:07:48,036 INFO L87 Difference]: Start difference. First operand 504 states and 754 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 05:07:48,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:07:48,271 INFO L93 Difference]: Finished difference Result 864 states and 1289 transitions. [2024-11-20 05:07:48,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 05:07:48,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 143 [2024-11-20 05:07:48,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:07:48,275 INFO L225 Difference]: With dead ends: 864 [2024-11-20 05:07:48,275 INFO L226 Difference]: Without dead ends: 516 [2024-11-20 05:07:48,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 05:07:48,277 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 117 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 05:07:48,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 336 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 05:07:48,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2024-11-20 05:07:48,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 462. [2024-11-20 05:07:48,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 386 states have (on average 1.4041450777202074) internal successors, (542), 388 states have internal predecessors, (542), 70 states have call successors, (70), 5 states have call predecessors, (70), 5 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-20 05:07:48,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 682 transitions. [2024-11-20 05:07:48,317 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 682 transitions. Word has length 143 [2024-11-20 05:07:48,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:07:48,317 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 682 transitions. [2024-11-20 05:07:48,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 05:07:48,318 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 682 transitions. [2024-11-20 05:07:48,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-20 05:07:48,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:07:48,319 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:07:48,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 05:07:48,319 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:07:48,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:07:48,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1931727872, now seen corresponding path program 1 times [2024-11-20 05:07:48,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:07:48,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068373030] [2024-11-20 05:07:48,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:07:48,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:07:48,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:50,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:07:50,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:50,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:07:50,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:50,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 05:07:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:50,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:07:50,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:50,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:07:50,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:50,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:07:50,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:50,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:07:50,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:50,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:07:50,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:50,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:07:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:50,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:07:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:50,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 05:07:50,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:50,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 05:07:50,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:50,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 05:07:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:50,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 05:07:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:50,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:07:50,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:50,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:07:50,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:50,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 05:07:50,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:50,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:07:50,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:50,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 05:07:50,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:50,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 05:07:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:50,861 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 05:07:50,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:07:50,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068373030] [2024-11-20 05:07:50,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068373030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:07:50,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:07:50,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 05:07:50,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183755535] [2024-11-20 05:07:50,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:07:50,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 05:07:50,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:07:50,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 05:07:50,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-20 05:07:50,864 INFO L87 Difference]: Start difference. First operand 462 states and 682 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 05:07:52,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:07:52,024 INFO L93 Difference]: Finished difference Result 914 states and 1339 transitions. [2024-11-20 05:07:52,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 05:07:52,025 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-11-20 05:07:52,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:07:52,028 INFO L225 Difference]: With dead ends: 914 [2024-11-20 05:07:52,028 INFO L226 Difference]: Without dead ends: 670 [2024-11-20 05:07:52,029 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-11-20 05:07:52,030 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 325 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 05:07:52,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 587 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 05:07:52,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2024-11-20 05:07:52,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 392. [2024-11-20 05:07:52,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 326 states have (on average 1.4049079754601228) internal successors, (458), 326 states have internal predecessors, (458), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-20 05:07:52,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 578 transitions. [2024-11-20 05:07:52,064 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 578 transitions. Word has length 144 [2024-11-20 05:07:52,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:07:52,065 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 578 transitions. [2024-11-20 05:07:52,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 05:07:52,065 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 578 transitions. [2024-11-20 05:07:52,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-20 05:07:52,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:07:52,067 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:07:52,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 05:07:52,067 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:07:52,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:07:52,068 INFO L85 PathProgramCache]: Analyzing trace with hash -2112476102, now seen corresponding path program 1 times [2024-11-20 05:07:52,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:07:52,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752983281] [2024-11-20 05:07:52,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:07:52,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:07:52,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:57,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:07:57,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:57,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:07:57,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:57,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 05:07:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:57,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:07:57,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:57,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:07:57,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:57,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:07:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:57,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:07:57,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:57,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:07:57,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:57,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:07:57,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:57,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:07:57,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:57,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 05:07:57,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:57,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 05:07:57,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:57,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 05:07:57,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:57,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 05:07:57,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:57,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:07:57,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:57,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:07:57,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:57,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 05:07:57,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:57,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:07:57,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:57,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 05:07:57,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:57,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 05:07:57,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:07:57,216 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 05:07:57,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:07:57,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752983281] [2024-11-20 05:07:57,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752983281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:07:57,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:07:57,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-20 05:07:57,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474082730] [2024-11-20 05:07:57,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:07:57,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 05:07:57,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:07:57,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 05:07:57,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-20 05:07:57,219 INFO L87 Difference]: Start difference. First operand 392 states and 578 transitions. Second operand has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 05:07:59,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:07:59,012 INFO L93 Difference]: Finished difference Result 834 states and 1202 transitions. [2024-11-20 05:07:59,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 05:07:59,013 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-11-20 05:07:59,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:07:59,016 INFO L225 Difference]: With dead ends: 834 [2024-11-20 05:07:59,016 INFO L226 Difference]: Without dead ends: 541 [2024-11-20 05:07:59,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2024-11-20 05:07:59,017 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 247 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 946 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-20 05:07:59,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 864 Invalid, 1019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 946 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-20 05:07:59,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-20 05:07:59,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 429. [2024-11-20 05:07:59,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 363 states have (on average 1.3911845730027548) internal successors, (505), 363 states have internal predecessors, (505), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-20 05:07:59,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 625 transitions. [2024-11-20 05:07:59,056 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 625 transitions. Word has length 144 [2024-11-20 05:07:59,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:07:59,057 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 625 transitions. [2024-11-20 05:07:59,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 05:07:59,057 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 625 transitions. [2024-11-20 05:07:59,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-20 05:07:59,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:07:59,061 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:07:59,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 05:07:59,061 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:07:59,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:07:59,062 INFO L85 PathProgramCache]: Analyzing trace with hash -156289763, now seen corresponding path program 1 times [2024-11-20 05:07:59,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:07:59,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289739205] [2024-11-20 05:07:59,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:07:59,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:07:59,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:01,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:08:01,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:01,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:08:01,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:01,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 05:08:01,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:01,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:08:01,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:01,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:08:01,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:01,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:08:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:01,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:08:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:01,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:08:01,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:01,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:08:01,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:01,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:08:01,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:01,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 05:08:01,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:01,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 05:08:01,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:01,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 05:08:01,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:01,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 05:08:01,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:01,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:08:01,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:01,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:08:01,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:01,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 05:08:01,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:01,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:08:01,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:01,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 05:08:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:01,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 05:08:01,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:01,748 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 05:08:01,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:08:01,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289739205] [2024-11-20 05:08:01,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289739205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:08:01,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:08:01,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 05:08:01,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400966964] [2024-11-20 05:08:01,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:08:01,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 05:08:01,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:08:01,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 05:08:01,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-20 05:08:01,750 INFO L87 Difference]: Start difference. First operand 429 states and 625 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 05:08:03,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:08:03,464 INFO L93 Difference]: Finished difference Result 853 states and 1237 transitions. [2024-11-20 05:08:03,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 05:08:03,465 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145 [2024-11-20 05:08:03,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:08:03,468 INFO L225 Difference]: With dead ends: 853 [2024-11-20 05:08:03,468 INFO L226 Difference]: Without dead ends: 659 [2024-11-20 05:08:03,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2024-11-20 05:08:03,469 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 239 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-20 05:08:03,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 778 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-20 05:08:03,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2024-11-20 05:08:03,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 417. [2024-11-20 05:08:03,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 351 states have (on average 1.393162393162393) internal successors, (489), 351 states have internal predecessors, (489), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-20 05:08:03,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 609 transitions. [2024-11-20 05:08:03,509 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 609 transitions. Word has length 145 [2024-11-20 05:08:03,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:08:03,509 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 609 transitions. [2024-11-20 05:08:03,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 05:08:03,509 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 609 transitions. [2024-11-20 05:08:03,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-20 05:08:03,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:08:03,512 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:08:03,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 05:08:03,512 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:08:03,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:08:03,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1280528815, now seen corresponding path program 1 times [2024-11-20 05:08:03,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:08:03,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420574777] [2024-11-20 05:08:03,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:08:03,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:08:03,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:06,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:08:06,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:06,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:08:06,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:06,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 05:08:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:06,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:08:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:06,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:08:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:06,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:08:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:06,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:08:06,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:06,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:08:06,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:06,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:08:06,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:06,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:08:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:06,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 05:08:06,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:06,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 05:08:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:06,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 05:08:06,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:06,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 05:08:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:06,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:08:06,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:06,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:08:06,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:06,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 05:08:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:06,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:08:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:06,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 05:08:06,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:06,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 05:08:06,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:06,519 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 05:08:06,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:08:06,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420574777] [2024-11-20 05:08:06,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420574777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:08:06,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:08:06,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 05:08:06,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469720778] [2024-11-20 05:08:06,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:08:06,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 05:08:06,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:08:06,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 05:08:06,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2024-11-20 05:08:06,521 INFO L87 Difference]: Start difference. First operand 417 states and 609 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 05:08:08,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:08:08,623 INFO L93 Difference]: Finished difference Result 810 states and 1172 transitions. [2024-11-20 05:08:08,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 05:08:08,624 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145 [2024-11-20 05:08:08,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:08:08,629 INFO L225 Difference]: With dead ends: 810 [2024-11-20 05:08:08,629 INFO L226 Difference]: Without dead ends: 618 [2024-11-20 05:08:08,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=135, Invalid=245, Unknown=0, NotChecked=0, Total=380 [2024-11-20 05:08:08,630 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 387 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-20 05:08:08,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 417 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-20 05:08:08,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2024-11-20 05:08:08,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 423. [2024-11-20 05:08:08,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 357 states have (on average 1.3977591036414565) internal successors, (499), 357 states have internal predecessors, (499), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-20 05:08:08,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 619 transitions. [2024-11-20 05:08:08,666 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 619 transitions. Word has length 145 [2024-11-20 05:08:08,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:08:08,666 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 619 transitions. [2024-11-20 05:08:08,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 05:08:08,667 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 619 transitions. [2024-11-20 05:08:08,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-20 05:08:08,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:08:08,669 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:08:08,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 05:08:08,669 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:08:08,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:08:08,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1919489489, now seen corresponding path program 1 times [2024-11-20 05:08:08,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:08:08,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122444094] [2024-11-20 05:08:08,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:08:08,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:08:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:12,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:08:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:12,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:08:12,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:12,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 05:08:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:12,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:08:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:12,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:08:12,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:12,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:08:12,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:12,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:08:12,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:12,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:08:12,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:12,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:08:12,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:12,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:08:12,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:12,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 05:08:12,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:12,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 05:08:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:12,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 05:08:12,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:12,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 05:08:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:12,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:08:12,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:12,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:08:12,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:12,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 05:08:12,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:12,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:08:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:12,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-20 05:08:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:12,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-20 05:08:12,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:08:12,801 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-20 05:08:12,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:08:12,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122444094] [2024-11-20 05:08:12,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122444094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:08:12,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:08:12,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-20 05:08:12,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239982586] [2024-11-20 05:08:12,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:08:12,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 05:08:12,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:08:12,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 05:08:12,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-20 05:08:12,803 INFO L87 Difference]: Start difference. First operand 423 states and 619 transitions. Second operand has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 05:08:15,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:08:15,281 INFO L93 Difference]: Finished difference Result 1006 states and 1449 transitions. [2024-11-20 05:08:15,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 05:08:15,282 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145 [2024-11-20 05:08:15,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:08:15,288 INFO L225 Difference]: With dead ends: 1006 [2024-11-20 05:08:15,288 INFO L226 Difference]: Without dead ends: 728 [2024-11-20 05:08:15,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2024-11-20 05:08:15,289 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 477 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 1238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-20 05:08:15,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 746 Invalid, 1238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1160 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-20 05:08:15,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2024-11-20 05:08:15,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 471. [2024-11-20 05:08:15,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 405 states have (on average 1.4049382716049383) internal successors, (569), 405 states have internal predecessors, (569), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-20 05:08:15,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 689 transitions. [2024-11-20 05:08:15,336 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 689 transitions. Word has length 145 [2024-11-20 05:08:15,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:08:15,337 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 689 transitions. [2024-11-20 05:08:15,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-20 05:08:15,337 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 689 transitions. [2024-11-20 05:08:15,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-20 05:08:15,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:08:15,340 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:08:15,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 05:08:15,341 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:08:15,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:08:15,341 INFO L85 PathProgramCache]: Analyzing trace with hash -600470445, now seen corresponding path program 1 times [2024-11-20 05:08:15,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:08:15,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883736003] [2024-11-20 05:08:15,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:08:15,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:08:15,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat