./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-co_file-33.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-co_file-33.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 a748a59f07e4b223740bdd1b062749131146e39483e646914db65f28461caf78 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 04:23:33,561 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 04:23:33,682 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 04:23:33,691 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 04:23:33,692 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 04:23:33,727 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 04:23:33,730 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 04:23:33,730 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 04:23:33,731 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 04:23:33,733 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 04:23:33,734 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 04:23:33,734 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 04:23:33,735 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 04:23:33,737 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 04:23:33,738 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 04:23:33,738 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 04:23:33,738 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 04:23:33,739 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 04:23:33,739 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 04:23:33,739 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 04:23:33,739 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 04:23:33,743 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 04:23:33,743 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 04:23:33,744 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 04:23:33,744 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 04:23:33,744 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 04:23:33,744 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 04:23:33,745 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 04:23:33,745 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 04:23:33,746 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 04:23:33,746 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 04:23:33,747 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 04:23:33,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 04:23:33,747 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 04:23:33,748 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 04:23:33,748 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 04:23:33,748 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 04:23:33,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 04:23:33,749 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 04:23:33,749 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 04:23:33,749 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 04:23:33,750 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 04:23:33,750 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a748a59f07e4b223740bdd1b062749131146e39483e646914db65f28461caf78 [2024-11-20 04:23:34,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 04:23:34,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 04:23:34,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 04:23:34,103 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 04:23:34,104 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 04:23:34,105 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-33.i [2024-11-20 04:23:35,687 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 04:23:35,946 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 04:23:35,947 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-33.i [2024-11-20 04:23:35,960 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ed68d8d8/9dac4294d89e466786ef060e5de3538d/FLAGbc1defed5 [2024-11-20 04:23:35,976 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ed68d8d8/9dac4294d89e466786ef060e5de3538d [2024-11-20 04:23:35,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 04:23:35,981 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 04:23:35,982 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 04:23:35,983 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 04:23:35,988 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 04:23:35,989 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:23:35" (1/1) ... [2024-11-20 04:23:35,990 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47fa4e2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:23:35, skipping insertion in model container [2024-11-20 04:23:36,003 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:23:35" (1/1) ... [2024-11-20 04:23:36,043 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 04:23:36,270 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-co_file-33.i[919,932] [2024-11-20 04:23:36,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 04:23:36,403 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 04:23:36,418 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-co_file-33.i[919,932] [2024-11-20 04:23:36,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 04:23:36,502 INFO L204 MainTranslator]: Completed translation [2024-11-20 04:23:36,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:23:36 WrapperNode [2024-11-20 04:23:36,503 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 04:23:36,504 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 04:23:36,505 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 04:23:36,505 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 04:23:36,514 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:23:36" (1/1) ... [2024-11-20 04:23:36,532 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:23:36" (1/1) ... [2024-11-20 04:23:36,608 INFO L138 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 226 [2024-11-20 04:23:36,609 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 04:23:36,610 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 04:23:36,610 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 04:23:36,610 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 04:23:36,623 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:23:36" (1/1) ... [2024-11-20 04:23:36,623 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:23:36" (1/1) ... [2024-11-20 04:23:36,634 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:23:36" (1/1) ... [2024-11-20 04:23:36,664 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 04:23:36,664 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:23:36" (1/1) ... [2024-11-20 04:23:36,664 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:23:36" (1/1) ... [2024-11-20 04:23:36,680 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:23:36" (1/1) ... [2024-11-20 04:23:36,686 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:23:36" (1/1) ... [2024-11-20 04:23:36,691 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:23:36" (1/1) ... [2024-11-20 04:23:36,698 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:23:36" (1/1) ... [2024-11-20 04:23:36,708 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 04:23:36,709 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 04:23:36,710 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 04:23:36,711 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 04:23:36,712 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:23:36" (1/1) ... [2024-11-20 04:23:36,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 04:23:36,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 04:23:36,744 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 04:23:36,748 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 04:23:36,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 04:23:36,792 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 04:23:36,792 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 04:23:36,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 04:23:36,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 04:23:36,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 04:23:36,872 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 04:23:36,874 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 04:23:37,429 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-20 04:23:37,429 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 04:23:37,453 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 04:23:37,456 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 04:23:37,457 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:23:37 BoogieIcfgContainer [2024-11-20 04:23:37,457 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 04:23:37,460 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 04:23:37,460 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 04:23:37,464 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 04:23:37,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:23:35" (1/3) ... [2024-11-20 04:23:37,466 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729bb36b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:23:37, skipping insertion in model container [2024-11-20 04:23:37,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:23:36" (2/3) ... [2024-11-20 04:23:37,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729bb36b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:23:37, skipping insertion in model container [2024-11-20 04:23:37,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:23:37" (3/3) ... [2024-11-20 04:23:37,470 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-33.i [2024-11-20 04:23:37,489 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 04:23:37,489 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 04:23:37,577 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 04:23:37,588 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;@3c653683, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 04:23:37,588 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 04:23:37,594 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 63 states have (on average 1.4285714285714286) internal successors, (90), 64 states have internal predecessors, (90), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-20 04:23:37,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-20 04:23:37,630 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:23:37,631 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:37,632 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:23:37,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:23:37,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1831376228, now seen corresponding path program 1 times [2024-11-20 04:23:37,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:23:37,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946873636] [2024-11-20 04:23:37,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:23:37,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:23:37,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:23:38,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 04:23:38,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 04:23:38,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 04:23:38,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-20 04:23:38,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 04:23:38,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 04:23:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 04:23:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 04:23:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 04:23:38,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 04:23:38,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 04:23:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 04:23:38,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 04:23:38,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 04:23:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 04:23:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 04:23:38,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 04:23:38,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 04:23:38,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 04:23:38,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-20 04:23:38,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 04:23:38,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-20 04:23:38,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 04:23:38,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-20 04:23:38,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-20 04:23:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-20 04:23:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-20 04:23:38,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-20 04:23:38,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-20 04:23:38,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-20 04:23:38,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 04:23:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-20 04:23:38,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-20 04:23:38,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:38,280 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-20 04:23:38,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:23:38,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946873636] [2024-11-20 04:23:38,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946873636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 04:23:38,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 04:23:38,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 04:23:38,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878177931] [2024-11-20 04:23:38,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 04:23:38,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 04:23:38,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:23:38,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 04:23:38,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 04:23:38,326 INFO L87 Difference]: Start difference. First operand has 100 states, 63 states have (on average 1.4285714285714286) internal successors, (90), 64 states have internal predecessors, (90), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-20 04:23:38,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:23:38,375 INFO L93 Difference]: Finished difference Result 191 states and 340 transitions. [2024-11-20 04:23:38,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 04:23:38,380 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) Word has length 213 [2024-11-20 04:23:38,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:23:38,388 INFO L225 Difference]: With dead ends: 191 [2024-11-20 04:23:38,390 INFO L226 Difference]: Without dead ends: 94 [2024-11-20 04:23:38,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 104 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 04:23:38,403 INFO L432 NwaCegarLoop]: 144 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, 144 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 04:23:38,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 04:23:38,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-20 04:23:38,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-20 04:23:38,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 58 states have internal predecessors, (76), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-20 04:23:38,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 144 transitions. [2024-11-20 04:23:38,475 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 144 transitions. Word has length 213 [2024-11-20 04:23:38,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:23:38,475 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 144 transitions. [2024-11-20 04:23:38,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-20 04:23:38,476 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 144 transitions. [2024-11-20 04:23:38,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-20 04:23:38,484 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:23:38,485 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:38,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 04:23:38,485 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:23:38,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:23:38,487 INFO L85 PathProgramCache]: Analyzing trace with hash 203194776, now seen corresponding path program 1 times [2024-11-20 04:23:38,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:23:38,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123998759] [2024-11-20 04:23:38,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:23:38,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:23:38,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:23:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 04:23:39,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 04:23:39,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 04:23:39,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-20 04:23:39,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 04:23:39,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 04:23:39,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 04:23:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 04:23:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 04:23:39,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 04:23:39,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 04:23:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 04:23:39,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 04:23:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 04:23:39,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 04:23:39,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 04:23:39,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 04:23:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 04:23:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 04:23:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-20 04:23:39,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 04:23:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-20 04:23:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 04:23:39,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-20 04:23:39,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-20 04:23:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-20 04:23:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-20 04:23:39,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-20 04:23:39,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-20 04:23:39,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-20 04:23:39,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:39,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 04:23:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:40,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-20 04:23:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:40,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-20 04:23:40,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:40,037 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-20 04:23:40,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:23:40,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123998759] [2024-11-20 04:23:40,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123998759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 04:23:40,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 04:23:40,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 04:23:40,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823470912] [2024-11-20 04:23:40,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 04:23:40,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 04:23:40,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:23:40,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 04:23:40,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 04:23:40,046 INFO L87 Difference]: Start difference. First operand 94 states and 144 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-20 04:23:40,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:23:40,490 INFO L93 Difference]: Finished difference Result 281 states and 434 transitions. [2024-11-20 04:23:40,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 04:23:40,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 213 [2024-11-20 04:23:40,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:23:40,494 INFO L225 Difference]: With dead ends: 281 [2024-11-20 04:23:40,494 INFO L226 Difference]: Without dead ends: 190 [2024-11-20 04:23:40,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 04:23:40,497 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 90 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 04:23:40,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 360 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 04:23:40,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-20 04:23:40,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 176. [2024-11-20 04:23:40,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 105 states have (on average 1.3047619047619048) internal successors, (137), 105 states have internal predecessors, (137), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-20 04:23:40,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 273 transitions. [2024-11-20 04:23:40,554 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 273 transitions. Word has length 213 [2024-11-20 04:23:40,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:23:40,556 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 273 transitions. [2024-11-20 04:23:40,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-20 04:23:40,557 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 273 transitions. [2024-11-20 04:23:40,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-20 04:23:40,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:23:40,564 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:40,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 04:23:40,564 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:23:40,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:23:40,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1179127205, now seen corresponding path program 1 times [2024-11-20 04:23:40,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:23:40,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997830120] [2024-11-20 04:23:40,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:23:40,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:23:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:40,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 04:23:40,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:40,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 04:23:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:40,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 04:23:40,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:40,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 04:23:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:40,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-20 04:23:40,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:40,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-20 04:23:40,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:40,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-20 04:23:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:40,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 04:23:40,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:40,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 04:23:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:40,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 04:23:40,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:40,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-20 04:23:40,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:40,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 04:23:40,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:40,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-20 04:23:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:40,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 04:23:40,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:40,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 04:23:40,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:40,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 04:23:40,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:40,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 04:23:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:40,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 04:23:40,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:40,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 04:23:40,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:40,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 04:23:40,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:40,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-20 04:23:41,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:41,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-20 04:23:41,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:41,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-20 04:23:41,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:41,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 04:23:41,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:41,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-20 04:23:41,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:41,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-20 04:23:41,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:41,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-20 04:23:41,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:41,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-20 04:23:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:41,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-20 04:23:41,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:41,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-20 04:23:41,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:41,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-20 04:23:41,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:41,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 04:23:41,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:41,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-20 04:23:41,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:41,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-20 04:23:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 04:23:41,078 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-20 04:23:41,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 04:23:41,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997830120] [2024-11-20 04:23:41,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997830120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 04:23:41,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 04:23:41,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 04:23:41,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048622925] [2024-11-20 04:23:41,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 04:23:41,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 04:23:41,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 04:23:41,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 04:23:41,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 04:23:41,081 INFO L87 Difference]: Start difference. First operand 176 states and 273 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-20 04:23:41,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 04:23:41,367 INFO L93 Difference]: Finished difference Result 299 states and 460 transitions. [2024-11-20 04:23:41,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 04:23:41,368 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 214 [2024-11-20 04:23:41,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 04:23:41,371 INFO L225 Difference]: With dead ends: 299 [2024-11-20 04:23:41,374 INFO L226 Difference]: Without dead ends: 186 [2024-11-20 04:23:41,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 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 04:23:41,377 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 87 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 04:23:41,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 372 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 04:23:41,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-11-20 04:23:41,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 177. [2024-11-20 04:23:41,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 106 states have (on average 1.2924528301886793) internal successors, (137), 106 states have internal predecessors, (137), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-20 04:23:41,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 273 transitions. [2024-11-20 04:23:41,432 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 273 transitions. Word has length 214 [2024-11-20 04:23:41,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 04:23:41,433 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 273 transitions. [2024-11-20 04:23:41,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-11-20 04:23:41,435 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 273 transitions. [2024-11-20 04:23:41,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-20 04:23:41,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 04:23:41,439 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:41,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 04:23:41,440 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 04:23:41,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 04:23:41,440 INFO L85 PathProgramCache]: Analyzing trace with hash -447382917, now seen corresponding path program 1 times [2024-11-20 04:23:41,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 04:23:41,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736906446] [2024-11-20 04:23:41,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 04:23:41,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 04:23:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat