./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-cn_file-28.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-cn_file-28.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 c2c98722d7693b5f9655f05a636708aa137a4db63e55576aa69e011f0e221591 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 08:09:46,236 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 08:09:46,306 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 08:09:46,311 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 08:09:46,311 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 08:09:46,338 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 08:09:46,340 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 08:09:46,341 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 08:09:46,342 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 08:09:46,343 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 08:09:46,343 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 08:09:46,343 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 08:09:46,344 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 08:09:46,346 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 08:09:46,346 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 08:09:46,346 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 08:09:46,347 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 08:09:46,347 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 08:09:46,347 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 08:09:46,348 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 08:09:46,348 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 08:09:46,352 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 08:09:46,352 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 08:09:46,352 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 08:09:46,353 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 08:09:46,353 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 08:09:46,353 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 08:09:46,353 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 08:09:46,354 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 08:09:46,354 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 08:09:46,354 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 08:09:46,354 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 08:09:46,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 08:09:46,355 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 08:09:46,355 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 08:09:46,355 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 08:09:46,355 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 08:09:46,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 08:09:46,356 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 08:09:46,356 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 08:09:46,356 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 08:09:46,356 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 08:09:46,357 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2c98722d7693b5f9655f05a636708aa137a4db63e55576aa69e011f0e221591 [2024-10-24 08:09:46,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 08:09:46,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 08:09:46,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 08:09:46,699 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 08:09:46,700 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 08:09:46,701 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-28.i [2024-10-24 08:09:48,222 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 08:09:48,426 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 08:09:48,427 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-28.i [2024-10-24 08:09:48,441 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c625d324/7fc4e4b15b6d433695428d19e3f6d547/FLAG0eafc779d [2024-10-24 08:09:48,455 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c625d324/7fc4e4b15b6d433695428d19e3f6d547 [2024-10-24 08:09:48,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 08:09:48,459 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 08:09:48,460 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 08:09:48,460 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 08:09:48,465 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 08:09:48,466 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:09:48" (1/1) ... [2024-10-24 08:09:48,467 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28c74299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:09:48, skipping insertion in model container [2024-10-24 08:09:48,467 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:09:48" (1/1) ... [2024-10-24 08:09:48,496 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 08:09:48,666 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-cn_file-28.i[919,932] [2024-10-24 08:09:48,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 08:09:48,773 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 08:09:48,784 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-cn_file-28.i[919,932] [2024-10-24 08:09:48,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 08:09:48,846 INFO L204 MainTranslator]: Completed translation [2024-10-24 08:09:48,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:09:48 WrapperNode [2024-10-24 08:09:48,846 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 08:09:48,850 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 08:09:48,850 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 08:09:48,850 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 08:09:48,857 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:09:48" (1/1) ... [2024-10-24 08:09:48,879 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:09:48" (1/1) ... [2024-10-24 08:09:48,931 INFO L138 Inliner]: procedures = 26, calls = 48, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 262 [2024-10-24 08:09:48,932 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 08:09:48,933 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 08:09:48,933 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 08:09:48,933 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 08:09:48,947 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:09:48" (1/1) ... [2024-10-24 08:09:48,947 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:09:48" (1/1) ... [2024-10-24 08:09:48,958 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:09:48" (1/1) ... [2024-10-24 08:09:49,002 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 08:09:49,002 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:09:48" (1/1) ... [2024-10-24 08:09:49,003 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:09:48" (1/1) ... [2024-10-24 08:09:49,019 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:09:48" (1/1) ... [2024-10-24 08:09:49,023 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:09:48" (1/1) ... [2024-10-24 08:09:49,026 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:09:48" (1/1) ... [2024-10-24 08:09:49,029 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:09:48" (1/1) ... [2024-10-24 08:09:49,036 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 08:09:49,037 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 08:09:49,037 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 08:09:49,038 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 08:09:49,038 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:09:48" (1/1) ... [2024-10-24 08:09:49,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 08:09:49,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 08:09:49,073 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 08:09:49,076 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 08:09:49,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 08:09:49,122 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 08:09:49,123 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 08:09:49,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 08:09:49,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 08:09:49,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 08:09:49,223 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 08:09:49,225 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 08:09:49,739 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-10-24 08:09:49,739 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 08:09:49,807 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 08:09:49,808 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 08:09:49,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:09:49 BoogieIcfgContainer [2024-10-24 08:09:49,808 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 08:09:49,818 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 08:09:49,818 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 08:09:49,823 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 08:09:49,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 08:09:48" (1/3) ... [2024-10-24 08:09:49,824 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec21da0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:09:49, skipping insertion in model container [2024-10-24 08:09:49,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:09:48" (2/3) ... [2024-10-24 08:09:49,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec21da0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:09:49, skipping insertion in model container [2024-10-24 08:09:49,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:09:49" (3/3) ... [2024-10-24 08:09:49,826 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-28.i [2024-10-24 08:09:49,841 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 08:09:49,841 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 08:09:49,899 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 08:09:49,904 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;@50857d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 08:09:49,905 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 08:09:49,909 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 69 states have (on average 1.463768115942029) internal successors, (101), 70 states have internal predecessors, (101), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-10-24 08:09:49,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-10-24 08:09:49,927 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:09:49,928 INFO L215 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:49,929 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:09:49,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:09:49,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1980497412, now seen corresponding path program 1 times [2024-10-24 08:09:49,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:09:49,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148534046] [2024-10-24 08:09:49,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:09:49,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:09:50,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:09:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:09:50,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:09:50,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:09:50,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:09:50,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:09:50,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:09:50,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:09:50,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:09:50,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:09:50,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:09:50,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:09:50,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:09:50,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:09:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:09:50,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:09:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 08:09:50,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 08:09:50,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 08:09:50,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 08:09:50,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 08:09:50,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 08:09:50,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 08:09:50,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-24 08:09:50,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-24 08:09:50,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-24 08:09:50,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-24 08:09:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-24 08:09:50,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 08:09:50,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-24 08:09:50,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-24 08:09:50,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-24 08:09:50,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 08:09:50,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-24 08:09:50,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-10-24 08:09:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:50,503 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-10-24 08:09:50,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:09:50,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148534046] [2024-10-24 08:09:50,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148534046] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:09:50,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:09:50,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 08:09:50,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860761017] [2024-10-24 08:09:50,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:09:50,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 08:09:50,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:09:50,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 08:09:50,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 08:09:50,547 INFO L87 Difference]: Start difference. First operand has 107 states, 69 states have (on average 1.463768115942029) internal successors, (101), 70 states have internal predecessors, (101), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 2 states have call successors, (35) [2024-10-24 08:09:50,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:09:50,602 INFO L93 Difference]: Finished difference Result 211 states and 375 transitions. [2024-10-24 08:09:50,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 08:09:50,605 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 2 states have call successors, (35) Word has length 222 [2024-10-24 08:09:50,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:09:50,613 INFO L225 Difference]: With dead ends: 211 [2024-10-24 08:09:50,614 INFO L226 Difference]: Without dead ends: 105 [2024-10-24 08:09:50,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 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 08:09:50,621 INFO L432 NwaCegarLoop]: 163 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, 163 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 08:09:50,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 163 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 08:09:50,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-10-24 08:09:50,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-10-24 08:09:50,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 68 states have (on average 1.411764705882353) internal successors, (96), 68 states have internal predecessors, (96), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-10-24 08:09:50,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 166 transitions. [2024-10-24 08:09:50,690 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 166 transitions. Word has length 222 [2024-10-24 08:09:50,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:09:50,691 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 166 transitions. [2024-10-24 08:09:50,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 2 states have call successors, (35) [2024-10-24 08:09:50,692 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 166 transitions. [2024-10-24 08:09:50,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-10-24 08:09:50,699 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:09:50,700 INFO L215 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:50,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 08:09:50,701 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:09:50,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:09:50,702 INFO L85 PathProgramCache]: Analyzing trace with hash -265122430, now seen corresponding path program 1 times [2024-10-24 08:09:50,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:09:50,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358269087] [2024-10-24 08:09:50,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:09:50,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:09:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:09:51,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:09:51,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:09:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:09:51,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:09:51,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:09:51,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:09:51,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:09:51,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:09:51,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:09:51,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:09:51,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:09:51,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:09:51,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:09:51,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:09:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:09:51,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 08:09:51,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 08:09:51,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 08:09:51,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 08:09:51,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 08:09:51,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 08:09:51,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-24 08:09:51,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-24 08:09:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-24 08:09:51,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-24 08:09:51,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-24 08:09:51,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-24 08:09:51,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-24 08:09:51,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-24 08:09:51,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-24 08:09:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-24 08:09:51,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-24 08:09:51,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-24 08:09:51,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-10-24 08:09:51,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:09:51,450 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-10-24 08:09:51,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:09:51,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358269087] [2024-10-24 08:09:51,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358269087] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:09:51,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:09:51,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 08:09:51,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289648871] [2024-10-24 08:09:51,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:09:51,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 08:09:51,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:09:51,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 08:09:51,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 08:09:51,457 INFO L87 Difference]: Start difference. First operand 105 states and 166 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-10-24 08:09:51,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:09:51,875 INFO L93 Difference]: Finished difference Result 296 states and 464 transitions. [2024-10-24 08:09:51,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 08:09:51,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 222 [2024-10-24 08:09:51,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:09:51,884 INFO L225 Difference]: With dead ends: 296 [2024-10-24 08:09:51,886 INFO L226 Difference]: Without dead ends: 192 [2024-10-24 08:09:51,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 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 08:09:51,889 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 283 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 08:09:51,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 334 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 08:09:51,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-10-24 08:09:51,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 110. [2024-10-24 08:09:51,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 72 states have internal predecessors, (100), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-10-24 08:09:51,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 170 transitions. [2024-10-24 08:09:51,930 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 170 transitions. Word has length 222 [2024-10-24 08:09:51,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:09:51,931 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 170 transitions. [2024-10-24 08:09:51,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-10-24 08:09:51,931 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 170 transitions. [2024-10-24 08:09:51,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-10-24 08:09:51,935 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:09:51,935 INFO L215 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:51,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 08:09:51,936 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:09:51,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:09:51,936 INFO L85 PathProgramCache]: Analyzing trace with hash -399135936, now seen corresponding path program 1 times [2024-10-24 08:09:51,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:09:51,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684440681] [2024-10-24 08:09:51,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:09:51,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:09:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat