./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-pe-ci_file-66.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-pe-ci_file-66.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e9f5cbcd9b5e7070eed068152e26dc672bc2b60288a251274726ceb1bf0c8d9b --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 04:05:38,523 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 04:05:38,619 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 04:05:38,628 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 04:05:38,629 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 04:05:38,676 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 04:05:38,677 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 04:05:38,680 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 04:05:38,680 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 04:05:38,681 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 04:05:38,681 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 04:05:38,681 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 04:05:38,682 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 04:05:38,682 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 04:05:38,683 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 04:05:38,684 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 04:05:38,685 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 04:05:38,685 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 04:05:38,686 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 04:05:38,686 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 04:05:38,690 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 04:05:38,692 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 04:05:38,692 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 04:05:38,693 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 04:05:38,693 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 04:05:38,693 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 04:05:38,693 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 04:05:38,693 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 04:05:38,693 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 04:05:38,694 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 04:05:38,694 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 04:05:38,694 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 04:05:38,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 04:05:38,694 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 04:05:38,694 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 04:05:38,695 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 04:05:38,695 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 04:05:38,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 04:05:38,695 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 04:05:38,695 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 04:05:38,695 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 04:05:38,701 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 04:05:38,701 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9f5cbcd9b5e7070eed068152e26dc672bc2b60288a251274726ceb1bf0c8d9b [2024-11-20 04:05:38,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 04:05:38,932 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 04:05:38,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 04:05:38,936 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 04:05:38,936 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 04:05:38,937 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-66.i [2024-11-20 04:05:40,302 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 04:05:40,496 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 04:05:40,500 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-66.i [2024-11-20 04:05:40,515 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13e043f15/dc8ac48d12be446ba3bae049fffdaccb/FLAGc068570d9 [2024-11-20 04:05:40,529 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13e043f15/dc8ac48d12be446ba3bae049fffdaccb [2024-11-20 04:05:40,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 04:05:40,533 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 04:05:40,535 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 04:05:40,536 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 04:05:40,540 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 04:05:40,541 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:05:40" (1/1) ... [2024-11-20 04:05:40,541 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a35b5f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:05:40, skipping insertion in model container [2024-11-20 04:05:40,543 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:05:40" (1/1) ... [2024-11-20 04:05:40,571 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 04:05:40,718 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-pe-ci_file-66.i[919,932] [2024-11-20 04:05:40,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 04:05:40,811 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 04:05:40,824 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-pe-ci_file-66.i[919,932] [2024-11-20 04:05:40,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 04:05:40,863 INFO L204 MainTranslator]: Completed translation [2024-11-20 04:05:40,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:05:40 WrapperNode [2024-11-20 04:05:40,864 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 04:05:40,865 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 04:05:40,866 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 04:05:40,866 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 04:05:40,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:05:40" (1/1) ... [2024-11-20 04:05:40,883 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:05:40" (1/1) ... [2024-11-20 04:05:40,921 INFO L138 Inliner]: procedures = 26, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 180 [2024-11-20 04:05:40,923 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 04:05:40,924 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 04:05:40,924 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 04:05:40,924 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 04:05:40,932 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:05:40" (1/1) ... [2024-11-20 04:05:40,933 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:05:40" (1/1) ... [2024-11-20 04:05:40,936 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:05:40" (1/1) ... [2024-11-20 04:05:40,964 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 04:05:40,965 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:05:40" (1/1) ... [2024-11-20 04:05:40,965 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:05:40" (1/1) ... [2024-11-20 04:05:40,975 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:05:40" (1/1) ... [2024-11-20 04:05:40,980 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:05:40" (1/1) ... [2024-11-20 04:05:40,981 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:05:40" (1/1) ... [2024-11-20 04:05:40,982 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:05:40" (1/1) ... [2024-11-20 04:05:40,992 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 04:05:40,993 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 04:05:40,993 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 04:05:40,993 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 04:05:40,994 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:05:40" (1/1) ... [2024-11-20 04:05:40,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 04:05:41,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 04:05:41,025 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 04:05:41,027 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 04:05:41,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 04:05:41,063 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 04:05:41,063 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 04:05:41,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 04:05:41,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 04:05:41,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 04:05:41,124 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 04:05:41,126 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 04:05:41,455 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-20 04:05:41,455 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 04:05:41,467 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 04:05:41,467 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 04:05:41,467 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:05:41 BoogieIcfgContainer [2024-11-20 04:05:41,468 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 04:05:41,469 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 04:05:41,470 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 04:05:41,472 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 04:05:41,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:05:40" (1/3) ... [2024-11-20 04:05:41,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ef8d13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:05:41, skipping insertion in model container [2024-11-20 04:05:41,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:05:40" (2/3) ... [2024-11-20 04:05:41,474 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ef8d13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:05:41, skipping insertion in model container [2024-11-20 04:05:41,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:05:41" (3/3) ... [2024-11-20 04:05:41,475 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-66.i [2024-11-20 04:05:41,489 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 04:05:41,489 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 04:05:41,546 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 04:05:41,551 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;@2a234696, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 04:05:41,551 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 04:05:41,558 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 56 states have (on average 1.5) internal successors, (84), 57 states have internal predecessors, (84), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-20 04:05:41,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-20 04:05:41,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:05:41,575 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:05:41,575 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:05:41,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:05:41,585 INFO L85 PathProgramCache]: Analyzing trace with hash -2005476774, now seen corresponding path program 1 times [2024-11-20 04:05:41,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:05:41,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518940647] [2024-11-20 04:05:41,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:05:41,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:05:41,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:41,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:05:41,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:41,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 04:05:41,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:41,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 04:05:41,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:41,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 04:05:41,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:41,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 04:05:41,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:41,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 04:05:41,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:41,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 04:05:41,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:41,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 04:05:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:41,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 04:05:41,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:41,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 04:05:41,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:41,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 04:05:41,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:41,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 04:05:41,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:41,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 04:05:41,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:41,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 04:05:41,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:41,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 04:05:41,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:41,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 04:05:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:41,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 04:05:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:41,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 04:05:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:42,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 04:05:42,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:42,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 04:05:42,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:42,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-20 04:05:42,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:42,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 04:05:42,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:42,012 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-20 04:05:42,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:05:42,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518940647] [2024-11-20 04:05:42,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518940647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 04:05:42,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 04:05:42,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 04:05:42,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814746848] [2024-11-20 04:05:42,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 04:05:42,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 04:05:42,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:05:42,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 04:05:42,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 04:05:42,040 INFO L87 Difference]: Start difference. First operand has 81 states, 56 states have (on average 1.5) internal successors, (84), 57 states have internal predecessors, (84), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-20 04:05:42,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:05:42,061 INFO L93 Difference]: Finished difference Result 155 states and 272 transitions. [2024-11-20 04:05:42,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 04:05:42,063 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) Word has length 149 [2024-11-20 04:05:42,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:05:42,072 INFO L225 Difference]: With dead ends: 155 [2024-11-20 04:05:42,075 INFO L226 Difference]: Without dead ends: 77 [2024-11-20 04:05:42,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 68 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 04:05:42,080 INFO L432 NwaCegarLoop]: 121 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, 121 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 04:05:42,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 04:05:42,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-20 04:05:42,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-11-20 04:05:42,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 53 states have (on average 1.4528301886792452) internal successors, (77), 53 states have internal predecessors, (77), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-20 04:05:42,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 121 transitions. [2024-11-20 04:05:42,170 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 121 transitions. Word has length 149 [2024-11-20 04:05:42,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:05:42,171 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 121 transitions. [2024-11-20 04:05:42,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-20 04:05:42,172 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 121 transitions. [2024-11-20 04:05:42,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-20 04:05:42,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:05:42,177 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:05:42,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 04:05:42,178 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:05:42,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:05:42,178 INFO L85 PathProgramCache]: Analyzing trace with hash -741775274, now seen corresponding path program 1 times [2024-11-20 04:05:42,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:05:42,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359174989] [2024-11-20 04:05:42,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:05:42,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:05:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:42,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:05:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:42,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 04:05:42,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:42,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 04:05:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:42,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 04:05:42,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:42,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 04:05:42,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:42,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 04:05:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:42,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 04:05:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:42,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 04:05:42,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:42,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 04:05:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:42,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 04:05:42,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:42,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 04:05:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:42,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 04:05:42,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:42,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 04:05:42,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:42,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 04:05:42,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:42,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 04:05:42,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:42,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 04:05:42,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:42,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 04:05:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:42,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 04:05:42,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:42,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 04:05:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:42,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 04:05:42,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:42,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-20 04:05:42,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:42,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 04:05:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:42,485 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-20 04:05:42,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:05:42,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359174989] [2024-11-20 04:05:42,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359174989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 04:05:42,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 04:05:42,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 04:05:42,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155524498] [2024-11-20 04:05:42,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 04:05:42,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 04:05:42,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:05:42,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 04:05:42,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 04:05:42,492 INFO L87 Difference]: Start difference. First operand 77 states and 121 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-20 04:05:42,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:05:42,693 INFO L93 Difference]: Finished difference Result 189 states and 295 transitions. [2024-11-20 04:05:42,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 04:05:42,694 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 149 [2024-11-20 04:05:42,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:05:42,696 INFO L225 Difference]: With dead ends: 189 [2024-11-20 04:05:42,697 INFO L226 Difference]: Without dead ends: 115 [2024-11-20 04:05:42,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 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 04:05:42,699 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 139 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 04:05:42,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 213 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 04:05:42,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-20 04:05:42,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 112. [2024-11-20 04:05:42,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 77 states have (on average 1.4155844155844155) internal successors, (109), 78 states have internal predecessors, (109), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-20 04:05:42,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 173 transitions. [2024-11-20 04:05:42,726 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 173 transitions. Word has length 149 [2024-11-20 04:05:42,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:05:42,726 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 173 transitions. [2024-11-20 04:05:42,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-20 04:05:42,727 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 173 transitions. [2024-11-20 04:05:42,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-20 04:05:42,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:05:42,733 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:05:42,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 04:05:42,733 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:05:42,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:05:42,737 INFO L85 PathProgramCache]: Analyzing trace with hash -61716904, now seen corresponding path program 1 times [2024-11-20 04:05:42,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:05:42,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172972854] [2024-11-20 04:05:42,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:05:42,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:05:42,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:43,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:05:43,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:43,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 04:05:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:43,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 04:05:43,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:43,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 04:05:43,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:43,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 04:05:43,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:43,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 04:05:43,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:43,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 04:05:43,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:43,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 04:05:43,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:43,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 04:05:43,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:43,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 04:05:43,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:43,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 04:05:43,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:43,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 04:05:43,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:43,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 04:05:43,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:43,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 04:05:43,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:43,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 04:05:43,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:43,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 04:05:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:43,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 04:05:43,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:43,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 04:05:43,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:43,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 04:05:43,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:43,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 04:05:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:43,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-20 04:05:43,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:43,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 04:05:43,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:43,291 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-20 04:05:43,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:05:43,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172972854] [2024-11-20 04:05:43,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172972854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 04:05:43,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 04:05:43,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 04:05:43,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410741442] [2024-11-20 04:05:43,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 04:05:43,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 04:05:43,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:05:43,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 04:05:43,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 04:05:43,294 INFO L87 Difference]: Start difference. First operand 112 states and 173 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-20 04:05:43,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:05:43,731 INFO L93 Difference]: Finished difference Result 392 states and 574 transitions. [2024-11-20 04:05:43,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 04:05:43,733 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 149 [2024-11-20 04:05:43,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:05:43,738 INFO L225 Difference]: With dead ends: 392 [2024-11-20 04:05:43,740 INFO L226 Difference]: Without dead ends: 283 [2024-11-20 04:05:43,741 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-20 04:05:43,745 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 198 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 04:05:43,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 467 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 04:05:43,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-11-20 04:05:43,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 177. [2024-11-20 04:05:43,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 136 states have (on average 1.4558823529411764) internal successors, (198), 139 states have internal predecessors, (198), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 04:05:43,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 270 transitions. [2024-11-20 04:05:43,777 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 270 transitions. Word has length 149 [2024-11-20 04:05:43,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:05:43,779 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 270 transitions. [2024-11-20 04:05:43,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-20 04:05:43,779 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 270 transitions. [2024-11-20 04:05:43,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-20 04:05:43,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:05:43,784 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:05:43,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 04:05:43,785 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:05:43,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:05:43,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1082000927, now seen corresponding path program 1 times [2024-11-20 04:05:43,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:05:43,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323176992] [2024-11-20 04:05:43,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:05:43,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:05:43,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:48,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:05:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:48,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 04:05:48,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:48,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 04:05:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:48,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 04:05:48,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:48,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 04:05:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:48,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 04:05:48,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:48,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 04:05:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:48,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 04:05:48,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:48,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 04:05:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:48,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 04:05:48,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:48,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 04:05:48,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:48,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 04:05:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:48,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 04:05:48,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:48,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 04:05:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:48,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 04:05:48,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:48,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 04:05:48,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:48,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 04:05:48,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:48,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 04:05:48,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:48,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 04:05:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:48,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 04:05:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:48,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-20 04:05:48,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:48,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 04:05:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:48,571 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-20 04:05:48,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:05:48,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323176992] [2024-11-20 04:05:48,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323176992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 04:05:48,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 04:05:48,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-20 04:05:48,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800349645] [2024-11-20 04:05:48,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 04:05:48,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-20 04:05:48,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:05:48,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-20 04:05:48,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-20 04:05:48,573 INFO L87 Difference]: Start difference. First operand 177 states and 270 transitions. Second operand has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-20 04:05:52,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:05:52,716 INFO L93 Difference]: Finished difference Result 858 states and 1300 transitions. [2024-11-20 04:05:52,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 04:05:52,717 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 150 [2024-11-20 04:05:52,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:05:52,721 INFO L225 Difference]: With dead ends: 858 [2024-11-20 04:05:52,724 INFO L226 Difference]: Without dead ends: 684 [2024-11-20 04:05:52,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=127, Invalid=293, Unknown=0, NotChecked=0, Total=420 [2024-11-20 04:05:52,726 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 680 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-20 04:05:52,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 496 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-20 04:05:52,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2024-11-20 04:05:52,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 416. [2024-11-20 04:05:52,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 359 states have (on average 1.4958217270194987) internal successors, (537), 366 states have internal predecessors, (537), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 41 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-20 04:05:52,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 633 transitions. [2024-11-20 04:05:52,780 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 633 transitions. Word has length 150 [2024-11-20 04:05:52,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:05:52,781 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 633 transitions. [2024-11-20 04:05:52,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-20 04:05:52,782 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 633 transitions. [2024-11-20 04:05:52,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-20 04:05:52,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:05:52,785 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:05:52,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 04:05:52,785 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:05:52,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:05:52,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1668806941, now seen corresponding path program 1 times [2024-11-20 04:05:52,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:05:52,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372097982] [2024-11-20 04:05:52,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:05:52,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:05:52,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:59,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:05:59,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:59,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 04:05:59,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:59,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 04:05:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:59,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 04:05:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:59,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 04:05:59,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:59,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 04:05:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:59,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 04:05:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:59,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 04:05:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:59,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 04:05:59,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:59,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 04:05:59,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:59,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 04:05:59,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:59,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 04:05:59,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:59,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 04:05:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:59,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 04:05:59,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:59,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 04:05:59,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:59,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 04:05:59,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:59,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 04:05:59,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:59,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 04:05:59,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:59,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 04:05:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:59,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 04:05:59,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:59,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-20 04:05:59,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:59,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 04:05:59,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:05:59,217 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-20 04:05:59,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:05:59,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372097982] [2024-11-20 04:05:59,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372097982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 04:05:59,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 04:05:59,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-20 04:05:59,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547518423] [2024-11-20 04:05:59,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 04:05:59,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-20 04:05:59,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:05:59,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-20 04:05:59,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2024-11-20 04:05:59,225 INFO L87 Difference]: Start difference. First operand 416 states and 633 transitions. Second operand has 19 states, 19 states have (on average 2.263157894736842) internal successors, (43), 19 states have internal predecessors, (43), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-20 04:06:10,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:06:10,951 INFO L93 Difference]: Finished difference Result 1718 states and 2617 transitions. [2024-11-20 04:06:10,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-20 04:06:10,951 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.263157894736842) internal successors, (43), 19 states have internal predecessors, (43), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 150 [2024-11-20 04:06:10,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:06:10,956 INFO L225 Difference]: With dead ends: 1718 [2024-11-20 04:06:10,956 INFO L226 Difference]: Without dead ends: 1305 [2024-11-20 04:06:10,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=1067, Invalid=2355, Unknown=0, NotChecked=0, Total=3422 [2024-11-20 04:06:10,958 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 1005 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 2039 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1005 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 2130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-20 04:06:10,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1005 Valid, 469 Invalid, 2130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2039 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-20 04:06:10,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2024-11-20 04:06:11,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 505. [2024-11-20 04:06:11,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 437 states have (on average 1.494279176201373) internal successors, (653), 445 states have internal predecessors, (653), 56 states have call successors, (56), 11 states have call predecessors, (56), 11 states have return successors, (56), 48 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-20 04:06:11,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 765 transitions. [2024-11-20 04:06:11,012 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 765 transitions. Word has length 150 [2024-11-20 04:06:11,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:06:11,013 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 765 transitions. [2024-11-20 04:06:11,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.263157894736842) internal successors, (43), 19 states have internal predecessors, (43), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-20 04:06:11,014 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 765 transitions. [2024-11-20 04:06:11,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-20 04:06:11,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:06:11,015 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:06:11,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 04:06:11,016 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:06:11,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:06:11,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1306467583, now seen corresponding path program 1 times [2024-11-20 04:06:11,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:06:11,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849019302] [2024-11-20 04:06:11,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:06:11,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:06:11,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:16,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:06:16,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:16,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 04:06:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:16,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 04:06:16,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:16,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 04:06:16,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:16,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 04:06:16,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:16,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 04:06:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:16,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 04:06:16,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:16,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 04:06:16,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:16,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 04:06:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:16,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 04:06:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:16,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 04:06:16,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:16,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 04:06:16,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:16,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 04:06:16,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:16,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 04:06:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:16,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 04:06:16,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:16,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 04:06:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:16,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 04:06:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:16,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 04:06:16,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:16,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 04:06:16,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:16,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 04:06:16,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:16,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-20 04:06:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:16,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 04:06:16,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:16,647 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-20 04:06:16,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:06:16,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849019302] [2024-11-20 04:06:16,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849019302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 04:06:16,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 04:06:16,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-20 04:06:16,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353990910] [2024-11-20 04:06:16,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 04:06:16,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-20 04:06:16,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:06:16,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-20 04:06:16,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2024-11-20 04:06:16,650 INFO L87 Difference]: Start difference. First operand 505 states and 765 transitions. Second operand has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-20 04:06:20,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:06:20,567 INFO L93 Difference]: Finished difference Result 813 states and 1177 transitions. [2024-11-20 04:06:20,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-20 04:06:20,568 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 150 [2024-11-20 04:06:20,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:06:20,571 INFO L225 Difference]: With dead ends: 813 [2024-11-20 04:06:20,572 INFO L226 Difference]: Without dead ends: 811 [2024-11-20 04:06:20,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=127, Invalid=253, Unknown=0, NotChecked=0, Total=380 [2024-11-20 04:06:20,573 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 614 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 866 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-20 04:06:20,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 521 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 866 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-20 04:06:20,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2024-11-20 04:06:20,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 515. [2024-11-20 04:06:20,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 444 states have (on average 1.4932432432432432) internal successors, (663), 452 states have internal predecessors, (663), 58 states have call successors, (58), 12 states have call predecessors, (58), 12 states have return successors, (58), 50 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-20 04:06:20,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 779 transitions. [2024-11-20 04:06:20,606 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 779 transitions. Word has length 150 [2024-11-20 04:06:20,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:06:20,606 INFO L471 AbstractCegarLoop]: Abstraction has 515 states and 779 transitions. [2024-11-20 04:06:20,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-11-20 04:06:20,607 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 779 transitions. [2024-11-20 04:06:20,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-20 04:06:20,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:06:20,609 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:06:20,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 04:06:20,609 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:06:20,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:06:20,609 INFO L85 PathProgramCache]: Analyzing trace with hash -2068451008, now seen corresponding path program 1 times [2024-11-20 04:06:20,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:06:20,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084211429] [2024-11-20 04:06:20,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:06:20,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:06:20,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:26,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:06:26,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:26,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 04:06:26,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:26,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 04:06:26,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:26,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 04:06:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:26,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 04:06:26,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:26,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 04:06:26,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:26,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 04:06:26,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:26,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 04:06:26,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:26,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 04:06:26,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:26,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 04:06:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:26,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 04:06:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:26,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 04:06:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:26,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 04:06:26,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:26,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 04:06:26,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:26,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 04:06:26,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:26,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 04:06:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:26,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 04:06:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:26,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 04:06:26,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:26,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 04:06:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:26,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 04:06:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:26,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-20 04:06:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:26,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 04:06:26,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:06:26,349 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-20 04:06:26,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:06:26,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084211429] [2024-11-20 04:06:26,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084211429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 04:06:26,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 04:06:26,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-20 04:06:26,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767214402] [2024-11-20 04:06:26,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 04:06:26,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-20 04:06:26,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:06:26,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-20 04:06:26,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-11-20 04:06:26,352 INFO L87 Difference]: Start difference. First operand 515 states and 779 transitions. Second operand has 20 states, 20 states have (on average 2.15) internal successors, (43), 20 states have internal predecessors, (43), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-20 04:06:41,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:06:41,247 INFO L93 Difference]: Finished difference Result 1856 states and 2829 transitions. [2024-11-20 04:06:41,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-20 04:06:41,247 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.15) internal successors, (43), 20 states have internal predecessors, (43), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 150 [2024-11-20 04:06:41,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:06:41,251 INFO L225 Difference]: With dead ends: 1856 [2024-11-20 04:06:41,251 INFO L226 Difference]: Without dead ends: 1362 [2024-11-20 04:06:41,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=1029, Invalid=2393, Unknown=0, NotChecked=0, Total=3422 [2024-11-20 04:06:41,254 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 1040 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 2905 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1040 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 2961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-20 04:06:41,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1040 Valid, 645 Invalid, 2961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2905 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-20 04:06:41,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2024-11-20 04:06:41,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 551. [2024-11-20 04:06:41,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 480 states have (on average 1.5166666666666666) internal successors, (728), 488 states have internal predecessors, (728), 58 states have call successors, (58), 12 states have call predecessors, (58), 12 states have return successors, (58), 50 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-20 04:06:41,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 844 transitions. [2024-11-20 04:06:41,290 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 844 transitions. Word has length 150 [2024-11-20 04:06:41,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:06:41,291 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 844 transitions. [2024-11-20 04:06:41,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.15) internal successors, (43), 20 states have internal predecessors, (43), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-20 04:06:41,291 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 844 transitions. [2024-11-20 04:06:41,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-20 04:06:41,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:06:41,293 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:06:41,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 04:06:41,294 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:06:41,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:06:41,294 INFO L85 PathProgramCache]: Analyzing trace with hash -2060507126, now seen corresponding path program 1 times [2024-11-20 04:06:41,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:06:41,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695028928] [2024-11-20 04:06:41,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:06:41,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:06:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat