./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-98.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-98.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 ca686f9256f657bcea08227d4780b5c57890ba4844680a923775ba3d19048603 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 08:07:16,688 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 08:07:16,754 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 08:07:16,760 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 08:07:16,761 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 08:07:16,801 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 08:07:16,801 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 08:07:16,802 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 08:07:16,803 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 08:07:16,803 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 08:07:16,803 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 08:07:16,804 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 08:07:16,806 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 08:07:16,807 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 08:07:16,807 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 08:07:16,807 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 08:07:16,808 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 08:07:16,808 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 08:07:16,808 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 08:07:16,809 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 08:07:16,809 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 08:07:16,814 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 08:07:16,814 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 08:07:16,814 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 08:07:16,818 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 08:07:16,819 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 08:07:16,819 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 08:07:16,819 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 08:07:16,820 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 08:07:16,820 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 08:07:16,820 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 08:07:16,820 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 08:07:16,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 08:07:16,821 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 08:07:16,821 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 08:07:16,822 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 08:07:16,822 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 08:07:16,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 08:07:16,827 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 08:07:16,827 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 08:07:16,827 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 08:07:16,828 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 08:07:16,828 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca686f9256f657bcea08227d4780b5c57890ba4844680a923775ba3d19048603 [2024-10-24 08:07:17,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 08:07:17,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 08:07:17,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 08:07:17,104 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 08:07:17,105 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 08:07:17,106 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-98.i [2024-10-24 08:07:18,634 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 08:07:18,871 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 08:07:18,873 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-98.i [2024-10-24 08:07:18,889 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9b0cb134/171b537e67aa4c4e8c2908db059d0ca8/FLAGe899ef914 [2024-10-24 08:07:18,904 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9b0cb134/171b537e67aa4c4e8c2908db059d0ca8 [2024-10-24 08:07:18,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 08:07:18,908 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 08:07:18,910 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 08:07:18,910 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 08:07:18,915 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 08:07:18,916 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:07:18" (1/1) ... [2024-10-24 08:07:18,917 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44c51bf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:07:18, skipping insertion in model container [2024-10-24 08:07:18,918 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:07:18" (1/1) ... [2024-10-24 08:07:18,949 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 08:07:19,130 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-98.i[919,932] [2024-10-24 08:07:19,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 08:07:19,270 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 08:07:19,284 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-98.i[919,932] [2024-10-24 08:07:19,320 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 08:07:19,345 INFO L204 MainTranslator]: Completed translation [2024-10-24 08:07:19,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:07:19 WrapperNode [2024-10-24 08:07:19,346 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 08:07:19,347 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 08:07:19,347 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 08:07:19,347 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 08:07:19,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:07:19" (1/1) ... [2024-10-24 08:07:19,367 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:07:19" (1/1) ... [2024-10-24 08:07:19,420 INFO L138 Inliner]: procedures = 26, calls = 46, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 243 [2024-10-24 08:07:19,421 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 08:07:19,422 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 08:07:19,422 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 08:07:19,422 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 08:07:19,433 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:07:19" (1/1) ... [2024-10-24 08:07:19,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:07:19" (1/1) ... [2024-10-24 08:07:19,441 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:07:19" (1/1) ... [2024-10-24 08:07:19,471 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 08:07:19,473 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:07:19" (1/1) ... [2024-10-24 08:07:19,474 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:07:19" (1/1) ... [2024-10-24 08:07:19,488 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:07:19" (1/1) ... [2024-10-24 08:07:19,494 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:07:19" (1/1) ... [2024-10-24 08:07:19,498 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:07:19" (1/1) ... [2024-10-24 08:07:19,504 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:07:19" (1/1) ... [2024-10-24 08:07:19,510 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 08:07:19,512 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 08:07:19,512 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 08:07:19,512 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 08:07:19,513 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:07:19" (1/1) ... [2024-10-24 08:07:19,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 08:07:19,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 08:07:19,557 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 08:07:19,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 08:07:19,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 08:07:19,618 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 08:07:19,620 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 08:07:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 08:07:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 08:07:19,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 08:07:19,729 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 08:07:19,735 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 08:07:20,292 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-10-24 08:07:20,293 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 08:07:20,386 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 08:07:20,386 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 08:07:20,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:07:20 BoogieIcfgContainer [2024-10-24 08:07:20,387 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 08:07:20,393 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 08:07:20,394 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 08:07:20,397 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 08:07:20,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 08:07:18" (1/3) ... [2024-10-24 08:07:20,405 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@577fd1c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:07:20, skipping insertion in model container [2024-10-24 08:07:20,405 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:07:19" (2/3) ... [2024-10-24 08:07:20,406 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@577fd1c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:07:20, skipping insertion in model container [2024-10-24 08:07:20,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:07:20" (3/3) ... [2024-10-24 08:07:20,408 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-98.i [2024-10-24 08:07:20,422 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 08:07:20,423 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 08:07:20,493 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 08:07:20,500 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;@412625ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 08:07:20,500 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 08:07:20,504 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 62 states have (on average 1.4838709677419355) internal successors, (92), 63 states have internal predecessors, (92), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-10-24 08:07:20,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-10-24 08:07:20,518 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:07:20,519 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:07:20,520 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:07:20,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:07:20,524 INFO L85 PathProgramCache]: Analyzing trace with hash -608484008, now seen corresponding path program 1 times [2024-10-24 08:07:20,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:07:20,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834080329] [2024-10-24 08:07:20,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:07:20,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:07:20,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:20,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:07:20,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:20,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:07:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:20,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:07:20,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:20,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:07:20,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:20,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:07:20,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:20,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 08:07:20,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:20,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:07:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:20,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:07:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:20,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:07:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:20,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:07:20,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:20,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:07:20,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:20,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:07:21,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:21,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:07:21,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:21,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:07:21,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:21,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:07:21,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:21,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:07:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:21,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 08:07:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:21,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 08:07:21,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:21,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 08:07:21,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:21,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 08:07:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:21,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 08:07:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:21,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 08:07:21,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:21,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 08:07:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:21,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 08:07:21,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:21,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 08:07:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:21,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 08:07:21,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:21,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 08:07:21,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:21,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-24 08:07:21,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:21,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-24 08:07:21,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:21,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-24 08:07:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:21,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-24 08:07:21,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:21,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-10-24 08:07:21,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:21,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-24 08:07:21,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:21,136 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-10-24 08:07:21,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:07:21,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834080329] [2024-10-24 08:07:21,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834080329] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:07:21,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:07:21,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 08:07:21,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757690060] [2024-10-24 08:07:21,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:07:21,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 08:07:21,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:07:21,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 08:07:21,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 08:07:21,182 INFO L87 Difference]: Start difference. First operand has 98 states, 62 states have (on average 1.4838709677419355) internal successors, (92), 63 states have internal predecessors, (92), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) [2024-10-24 08:07:21,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:07:21,243 INFO L93 Difference]: Finished difference Result 193 states and 347 transitions. [2024-10-24 08:07:21,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 08:07:21,246 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) Word has length 207 [2024-10-24 08:07:21,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:07:21,256 INFO L225 Difference]: With dead ends: 193 [2024-10-24 08:07:21,256 INFO L226 Difference]: Without dead ends: 96 [2024-10-24 08:07:21,260 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 08:07:21,264 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 08:07:21,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 149 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 08:07:21,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-10-24 08:07:21,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-10-24 08:07:21,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 61 states have (on average 1.4098360655737705) internal successors, (86), 61 states have internal predecessors, (86), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-10-24 08:07:21,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 152 transitions. [2024-10-24 08:07:21,310 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 152 transitions. Word has length 207 [2024-10-24 08:07:21,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:07:21,310 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 152 transitions. [2024-10-24 08:07:21,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) [2024-10-24 08:07:21,311 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 152 transitions. [2024-10-24 08:07:21,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-10-24 08:07:21,315 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:07:21,315 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:07:21,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 08:07:21,316 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:07:21,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:07:21,316 INFO L85 PathProgramCache]: Analyzing trace with hash -2020009638, now seen corresponding path program 1 times [2024-10-24 08:07:21,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:07:21,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116489307] [2024-10-24 08:07:21,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:07:21,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:07:21,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:07:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:07:22,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:07:22,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:07:22,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:07:22,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 08:07:22,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:07:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:07:22,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:07:22,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:07:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:07:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:07:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:07:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:07:22,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:07:22,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:07:22,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 08:07:22,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 08:07:22,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 08:07:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 08:07:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 08:07:22,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 08:07:22,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 08:07:22,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 08:07:22,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 08:07:22,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 08:07:22,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 08:07:22,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-24 08:07:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-24 08:07:22,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-24 08:07:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-24 08:07:22,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-10-24 08:07:22,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-24 08:07:22,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:22,521 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-10-24 08:07:22,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:07:22,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116489307] [2024-10-24 08:07:22,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116489307] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:07:22,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:07:22,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 08:07:22,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663377581] [2024-10-24 08:07:22,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:07:22,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 08:07:22,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:07:22,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 08:07:22,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 08:07:22,529 INFO L87 Difference]: Start difference. First operand 96 states and 152 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-10-24 08:07:22,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:07:22,721 INFO L93 Difference]: Finished difference Result 264 states and 420 transitions. [2024-10-24 08:07:22,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 08:07:22,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 207 [2024-10-24 08:07:22,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:07:22,727 INFO L225 Difference]: With dead ends: 264 [2024-10-24 08:07:22,727 INFO L226 Difference]: Without dead ends: 169 [2024-10-24 08:07:22,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 08:07:22,731 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 59 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 08:07:22,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 246 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 08:07:22,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-10-24 08:07:22,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 161. [2024-10-24 08:07:22,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 92 states have (on average 1.3369565217391304) internal successors, (123), 92 states have internal predecessors, (123), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-10-24 08:07:22,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 255 transitions. [2024-10-24 08:07:22,786 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 255 transitions. Word has length 207 [2024-10-24 08:07:22,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:07:22,788 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 255 transitions. [2024-10-24 08:07:22,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-10-24 08:07:22,789 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 255 transitions. [2024-10-24 08:07:22,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-10-24 08:07:22,793 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:07:22,793 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:07:22,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 08:07:22,794 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:07:22,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:07:22,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1208557060, now seen corresponding path program 1 times [2024-10-24 08:07:22,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:07:22,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887623338] [2024-10-24 08:07:22,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:07:22,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:07:22,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:07:23,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:07:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:07:23,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:07:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:07:23,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 08:07:23,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:07:23,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:07:23,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:07:23,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:07:23,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:07:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:07:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:07:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:07:23,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:07:23,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:07:23,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 08:07:23,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 08:07:23,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 08:07:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 08:07:23,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 08:07:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 08:07:23,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 08:07:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 08:07:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 08:07:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 08:07:23,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 08:07:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-24 08:07:23,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-24 08:07:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-24 08:07:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-24 08:07:23,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-10-24 08:07:23,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-24 08:07:23,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-10-24 08:07:23,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:07:23,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887623338] [2024-10-24 08:07:23,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887623338] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:07:23,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:07:23,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 08:07:23,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295271618] [2024-10-24 08:07:23,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:07:23,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 08:07:23,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:07:23,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 08:07:23,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 08:07:23,210 INFO L87 Difference]: Start difference. First operand 161 states and 255 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-10-24 08:07:23,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:07:23,327 INFO L93 Difference]: Finished difference Result 262 states and 416 transitions. [2024-10-24 08:07:23,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 08:07:23,328 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 208 [2024-10-24 08:07:23,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:07:23,331 INFO L225 Difference]: With dead ends: 262 [2024-10-24 08:07:23,332 INFO L226 Difference]: Without dead ends: 161 [2024-10-24 08:07:23,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 08:07:23,334 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 90 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 08:07:23,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 117 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 08:07:23,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-10-24 08:07:23,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2024-10-24 08:07:23,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 92 states have (on average 1.2934782608695652) internal successors, (119), 92 states have internal predecessors, (119), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-10-24 08:07:23,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 251 transitions. [2024-10-24 08:07:23,380 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 251 transitions. Word has length 208 [2024-10-24 08:07:23,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:07:23,381 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 251 transitions. [2024-10-24 08:07:23,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-10-24 08:07:23,381 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 251 transitions. [2024-10-24 08:07:23,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-10-24 08:07:23,384 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:07:23,384 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:07:23,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 08:07:23,385 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:07:23,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:07:23,385 INFO L85 PathProgramCache]: Analyzing trace with hash 181483897, now seen corresponding path program 1 times [2024-10-24 08:07:23,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:07:23,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161913734] [2024-10-24 08:07:23,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:07:23,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:07:23,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:07:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:07:23,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:07:23,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:07:23,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:07:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 08:07:23,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:07:23,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:07:23,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:07:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:07:23,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:07:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:07:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:07:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:07:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:07:23,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:07:23,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 08:07:23,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 08:07:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 08:07:23,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 08:07:23,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 08:07:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 08:07:23,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 08:07:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 08:07:23,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 08:07:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 08:07:23,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 08:07:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-24 08:07:23,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-24 08:07:23,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-24 08:07:23,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-24 08:07:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-10-24 08:07:23,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-24 08:07:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:23,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-10-24 08:07:23,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:07:23,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161913734] [2024-10-24 08:07:23,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161913734] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:07:23,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:07:23,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 08:07:23,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207573107] [2024-10-24 08:07:23,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:07:23,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 08:07:23,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:07:23,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 08:07:23,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 08:07:23,819 INFO L87 Difference]: Start difference. First operand 161 states and 251 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, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-10-24 08:07:24,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:07:24,149 INFO L93 Difference]: Finished difference Result 371 states and 580 transitions. [2024-10-24 08:07:24,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 08:07:24,150 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, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 209 [2024-10-24 08:07:24,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:07:24,156 INFO L225 Difference]: With dead ends: 371 [2024-10-24 08:07:24,157 INFO L226 Difference]: Without dead ends: 269 [2024-10-24 08:07:24,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 08:07:24,158 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 121 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 08:07:24,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 301 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 08:07:24,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-10-24 08:07:24,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 260. [2024-10-24 08:07:24,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 157 states have (on average 1.3312101910828025) internal successors, (209), 157 states have internal predecessors, (209), 99 states have call successors, (99), 3 states have call predecessors, (99), 3 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-10-24 08:07:24,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 407 transitions. [2024-10-24 08:07:24,230 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 407 transitions. Word has length 209 [2024-10-24 08:07:24,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:07:24,231 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 407 transitions. [2024-10-24 08:07:24,231 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, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-10-24 08:07:24,232 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 407 transitions. [2024-10-24 08:07:24,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-10-24 08:07:24,233 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:07:24,234 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:07:24,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 08:07:24,234 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:07:24,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:07:24,235 INFO L85 PathProgramCache]: Analyzing trace with hash 737106166, now seen corresponding path program 1 times [2024-10-24 08:07:24,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:07:24,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42256795] [2024-10-24 08:07:24,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:07:24,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:07:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:25,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:07:25,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:25,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:07:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:07:26,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:07:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:07:26,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 08:07:26,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:07:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:07:26,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:07:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:07:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:07:26,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:07:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:07:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:07:26,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:07:26,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:07:26,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 08:07:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 08:07:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 08:07:26,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 08:07:26,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 08:07:26,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 08:07:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 08:07:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 08:07:26,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 08:07:26,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 08:07:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 08:07:26,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-24 08:07:26,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-24 08:07:26,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-24 08:07:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-24 08:07:26,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-10-24 08:07:26,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-24 08:07:26,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:07:26,091 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-10-24 08:07:26,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:07:26,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42256795] [2024-10-24 08:07:26,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42256795] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:07:26,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:07:26,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 08:07:26,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460450353] [2024-10-24 08:07:26,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:07:26,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 08:07:26,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:07:26,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 08:07:26,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 08:07:26,094 INFO L87 Difference]: Start difference. First operand 260 states and 407 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-10-24 08:07:27,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:07:27,215 INFO L93 Difference]: Finished difference Result 605 states and 942 transitions. [2024-10-24 08:07:27,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 08:07:27,215 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 211 [2024-10-24 08:07:27,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:07:27,219 INFO L225 Difference]: With dead ends: 605 [2024-10-24 08:07:27,220 INFO L226 Difference]: Without dead ends: 411 [2024-10-24 08:07:27,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-24 08:07:27,223 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 260 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 08:07:27,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 536 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 08:07:27,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-10-24 08:07:27,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 393. [2024-10-24 08:07:27,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 235 states have (on average 1.3191489361702127) internal successors, (310), 236 states have internal predecessors, (310), 152 states have call successors, (152), 5 states have call predecessors, (152), 5 states have return successors, (152), 151 states have call predecessors, (152), 152 states have call successors, (152) [2024-10-24 08:07:27,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 614 transitions. [2024-10-24 08:07:27,303 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 614 transitions. Word has length 211 [2024-10-24 08:07:27,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:07:27,304 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 614 transitions. [2024-10-24 08:07:27,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-10-24 08:07:27,305 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 614 transitions. [2024-10-24 08:07:27,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-10-24 08:07:27,307 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:07:27,307 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:07:27,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 08:07:27,307 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:07:27,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:07:27,308 INFO L85 PathProgramCache]: Analyzing trace with hash 794364468, now seen corresponding path program 1 times [2024-10-24 08:07:27,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:07:27,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602420500] [2024-10-24 08:07:27,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:07:27,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:07:27,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat