./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-co_file-59.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-co_file-59.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 5f6d39be06f72af7d16bb75a603102ae57047b9834b57686fb81555f831b4fac --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 08:24:26,706 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 08:24:26,790 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 08:24:26,794 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 08:24:26,795 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 08:24:26,815 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 08:24:26,816 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 08:24:26,816 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 08:24:26,817 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 08:24:26,817 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 08:24:26,817 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 08:24:26,818 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 08:24:26,819 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 08:24:26,820 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 08:24:26,821 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 08:24:26,821 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 08:24:26,821 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 08:24:26,822 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 08:24:26,822 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 08:24:26,822 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 08:24:26,823 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 08:24:26,829 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 08:24:26,829 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 08:24:26,829 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 08:24:26,830 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 08:24:26,830 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 08:24:26,830 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 08:24:26,830 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 08:24:26,831 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 08:24:26,831 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 08:24:26,832 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 08:24:26,832 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 08:24:26,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 08:24:26,833 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 08:24:26,833 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 08:24:26,834 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 08:24:26,834 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 08:24:26,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 08:24:26,834 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 08:24:26,834 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 08:24:26,835 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 08:24:26,835 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 08:24:26,835 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5f6d39be06f72af7d16bb75a603102ae57047b9834b57686fb81555f831b4fac [2024-10-24 08:24:27,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 08:24:27,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 08:24:27,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 08:24:27,103 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 08:24:27,103 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 08:24:27,104 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-59.i [2024-10-24 08:24:28,508 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 08:24:28,710 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 08:24:28,711 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-59.i [2024-10-24 08:24:28,723 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57ff5a135/58492602276c49e38904fadebff14453/FLAG1fa68c35b [2024-10-24 08:24:28,738 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57ff5a135/58492602276c49e38904fadebff14453 [2024-10-24 08:24:28,742 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 08:24:28,743 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 08:24:28,744 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 08:24:28,744 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 08:24:28,750 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 08:24:28,751 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:24:28" (1/1) ... [2024-10-24 08:24:28,752 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34fd16fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:28, skipping insertion in model container [2024-10-24 08:24:28,754 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:24:28" (1/1) ... [2024-10-24 08:24:28,785 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 08:24:28,966 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-co_file-59.i[919,932] [2024-10-24 08:24:29,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 08:24:29,046 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 08:24:29,057 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-co_file-59.i[919,932] [2024-10-24 08:24:29,112 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 08:24:29,131 INFO L204 MainTranslator]: Completed translation [2024-10-24 08:24:29,132 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:29 WrapperNode [2024-10-24 08:24:29,132 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 08:24:29,140 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 08:24:29,141 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 08:24:29,141 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 08:24:29,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:29" (1/1) ... [2024-10-24 08:24:29,156 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:29" (1/1) ... [2024-10-24 08:24:29,216 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 214 [2024-10-24 08:24:29,216 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 08:24:29,217 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 08:24:29,217 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 08:24:29,217 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 08:24:29,228 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:29" (1/1) ... [2024-10-24 08:24:29,229 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:29" (1/1) ... [2024-10-24 08:24:29,234 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:29" (1/1) ... [2024-10-24 08:24:29,254 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 08:24:29,254 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:29" (1/1) ... [2024-10-24 08:24:29,254 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:29" (1/1) ... [2024-10-24 08:24:29,265 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:29" (1/1) ... [2024-10-24 08:24:29,272 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:29" (1/1) ... [2024-10-24 08:24:29,279 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:29" (1/1) ... [2024-10-24 08:24:29,282 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:29" (1/1) ... [2024-10-24 08:24:29,289 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 08:24:29,290 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 08:24:29,290 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 08:24:29,290 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 08:24:29,291 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:29" (1/1) ... [2024-10-24 08:24:29,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 08:24:29,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 08:24:29,328 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 08:24:29,334 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 08:24:29,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 08:24:29,381 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 08:24:29,382 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 08:24:29,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 08:24:29,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 08:24:29,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 08:24:29,478 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 08:24:29,479 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 08:24:30,009 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-10-24 08:24:30,010 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 08:24:30,045 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 08:24:30,048 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 08:24:30,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:24:30 BoogieIcfgContainer [2024-10-24 08:24:30,049 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 08:24:30,051 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 08:24:30,052 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 08:24:30,055 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 08:24:30,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 08:24:28" (1/3) ... [2024-10-24 08:24:30,056 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@302b30f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:24:30, skipping insertion in model container [2024-10-24 08:24:30,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:24:29" (2/3) ... [2024-10-24 08:24:30,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@302b30f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:24:30, skipping insertion in model container [2024-10-24 08:24:30,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:24:30" (3/3) ... [2024-10-24 08:24:30,058 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-59.i [2024-10-24 08:24:30,073 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 08:24:30,073 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 08:24:30,132 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 08:24:30,139 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;@39cc0d44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 08:24:30,139 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 08:24:30,143 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 56 states have (on average 1.5535714285714286) internal successors, (87), 57 states have internal predecessors, (87), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 08:24:30,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 08:24:30,161 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:24:30,162 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:24:30,163 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:24:30,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:24:30,169 INFO L85 PathProgramCache]: Analyzing trace with hash -2086796402, now seen corresponding path program 1 times [2024-10-24 08:24:30,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:24:30,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528962047] [2024-10-24 08:24:30,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:24:30,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:24:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:30,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:24:30,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:30,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:24:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:30,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:24:30,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:30,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:24:30,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:30,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:24:30,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:30,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:24:30,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:30,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:24:31,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:24:31,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:24:31,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 08:24:31,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 08:24:31,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 08:24:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 08:24:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 08:24:31,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 08:24:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 08:24:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 08:24:31,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 08:24:31,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 08:24:31,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 08:24:31,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 08:24:31,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 08:24:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 08:24:31,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 08:24:31,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 08:24:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 08:24:31,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 08:24:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,182 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 08:24:31,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:24:31,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528962047] [2024-10-24 08:24:31,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528962047] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:24:31,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:24:31,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 08:24:31,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039560983] [2024-10-24 08:24:31,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:24:31,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 08:24:31,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:24:31,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 08:24:31,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 08:24:31,225 INFO L87 Difference]: Start difference. First operand has 86 states, 56 states have (on average 1.5535714285714286) internal successors, (87), 57 states have internal predecessors, (87), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:24:31,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:24:31,344 INFO L93 Difference]: Finished difference Result 238 states and 451 transitions. [2024-10-24 08:24:31,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 08:24:31,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 171 [2024-10-24 08:24:31,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:24:31,370 INFO L225 Difference]: With dead ends: 238 [2024-10-24 08:24:31,371 INFO L226 Difference]: Without dead ends: 153 [2024-10-24 08:24:31,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 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 08:24:31,381 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 63 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 08:24:31,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 251 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 08:24:31,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-10-24 08:24:31,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 140. [2024-10-24 08:24:31,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 83 states have (on average 1.3734939759036144) internal successors, (114), 83 states have internal predecessors, (114), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-24 08:24:31,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 222 transitions. [2024-10-24 08:24:31,468 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 222 transitions. Word has length 171 [2024-10-24 08:24:31,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:24:31,470 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 222 transitions. [2024-10-24 08:24:31,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:24:31,470 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 222 transitions. [2024-10-24 08:24:31,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-10-24 08:24:31,475 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:24:31,475 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:24:31,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 08:24:31,478 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:24:31,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:24:31,479 INFO L85 PathProgramCache]: Analyzing trace with hash 590152512, now seen corresponding path program 1 times [2024-10-24 08:24:31,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:24:31,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739672380] [2024-10-24 08:24:31,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:24:31,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:24:31,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:24:31,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:24:31,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:24:31,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:24:31,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:24:31,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:24:31,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:24:31,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:24:31,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:24:31,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 08:24:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 08:24:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 08:24:31,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 08:24:31,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 08:24:31,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 08:24:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 08:24:31,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 08:24:31,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 08:24:31,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 08:24:31,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 08:24:31,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 08:24:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 08:24:31,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 08:24:31,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 08:24:31,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 08:24:31,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 08:24:31,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 08:24:31,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:31,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 08:24:31,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:24:31,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739672380] [2024-10-24 08:24:31,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739672380] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:24:31,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:24:31,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 08:24:31,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444251287] [2024-10-24 08:24:31,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:24:31,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 08:24:31,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:24:31,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 08:24:31,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 08:24:31,998 INFO L87 Difference]: Start difference. First operand 140 states and 222 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:24:32,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:24:32,197 INFO L93 Difference]: Finished difference Result 251 states and 399 transitions. [2024-10-24 08:24:32,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 08:24:32,200 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-10-24 08:24:32,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:24:32,207 INFO L225 Difference]: With dead ends: 251 [2024-10-24 08:24:32,207 INFO L226 Difference]: Without dead ends: 168 [2024-10-24 08:24:32,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 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 08:24:32,209 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 101 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 08:24:32,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 386 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 08:24:32,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-10-24 08:24:32,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 150. [2024-10-24 08:24:32,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 93 states have (on average 1.3870967741935485) internal successors, (129), 93 states have internal predecessors, (129), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-24 08:24:32,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 237 transitions. [2024-10-24 08:24:32,252 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 237 transitions. Word has length 174 [2024-10-24 08:24:32,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:24:32,253 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 237 transitions. [2024-10-24 08:24:32,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:24:32,253 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 237 transitions. [2024-10-24 08:24:32,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-10-24 08:24:32,256 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:24:32,256 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:24:32,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 08:24:32,256 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:24:32,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:24:32,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1588004758, now seen corresponding path program 1 times [2024-10-24 08:24:32,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:24:32,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119498646] [2024-10-24 08:24:32,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:24:32,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:24:32,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:32,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:24:32,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:32,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:24:32,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:32,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:24:32,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:32,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:24:32,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:32,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:24:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:32,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:24:32,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:32,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:24:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:32,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:24:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:32,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:24:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:32,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 08:24:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:32,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 08:24:32,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:32,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 08:24:32,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:32,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 08:24:32,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:32,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 08:24:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:32,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 08:24:32,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:32,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 08:24:32,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:32,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 08:24:32,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:32,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 08:24:32,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:32,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 08:24:32,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:32,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 08:24:32,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:32,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 08:24:32,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:32,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 08:24:32,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:32,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 08:24:32,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:32,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 08:24:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:32,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 08:24:32,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:32,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 08:24:32,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:32,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 08:24:32,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:32,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 08:24:32,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:24:32,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119498646] [2024-10-24 08:24:32,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119498646] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:24:32,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:24:32,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 08:24:32,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286688828] [2024-10-24 08:24:32,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:24:32,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 08:24:32,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:24:32,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 08:24:32,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 08:24:32,591 INFO L87 Difference]: Start difference. First operand 150 states and 237 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:24:32,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:24:32,788 INFO L93 Difference]: Finished difference Result 325 states and 514 transitions. [2024-10-24 08:24:32,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 08:24:32,789 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-10-24 08:24:32,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:24:32,792 INFO L225 Difference]: With dead ends: 325 [2024-10-24 08:24:32,792 INFO L226 Difference]: Without dead ends: 242 [2024-10-24 08:24:32,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 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 08:24:32,796 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 121 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 08:24:32,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 389 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 08:24:32,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-10-24 08:24:32,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 231. [2024-10-24 08:24:32,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 146 states have (on average 1.404109589041096) internal successors, (205), 146 states have internal predecessors, (205), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-24 08:24:32,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 367 transitions. [2024-10-24 08:24:32,837 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 367 transitions. Word has length 175 [2024-10-24 08:24:32,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:24:32,838 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 367 transitions. [2024-10-24 08:24:32,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:24:32,839 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 367 transitions. [2024-10-24 08:24:32,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-24 08:24:32,841 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:24:32,841 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:24:32,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 08:24:32,841 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:24:32,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:24:32,842 INFO L85 PathProgramCache]: Analyzing trace with hash -663613975, now seen corresponding path program 1 times [2024-10-24 08:24:32,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:24:32,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698435891] [2024-10-24 08:24:32,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:24:32,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:24:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:33,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:24:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:33,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:24:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:33,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:24:33,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:33,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:24:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:33,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:24:33,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:33,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:24:33,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:33,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:24:33,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:33,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:24:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:33,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:24:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:33,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 08:24:33,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:33,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 08:24:33,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:33,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 08:24:33,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:33,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 08:24:33,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:33,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 08:24:33,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:33,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 08:24:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:33,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 08:24:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:33,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 08:24:33,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:33,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 08:24:33,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:33,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 08:24:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:33,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 08:24:33,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:33,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 08:24:33,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:33,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 08:24:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:33,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 08:24:33,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:33,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 08:24:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:33,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 08:24:33,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:33,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 08:24:33,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:33,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 08:24:33,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:33,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 08:24:33,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:24:33,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698435891] [2024-10-24 08:24:33,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698435891] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:24:33,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:24:33,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 08:24:33,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058979225] [2024-10-24 08:24:33,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:24:33,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 08:24:33,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:24:33,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 08:24:33,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 08:24:33,332 INFO L87 Difference]: Start difference. First operand 231 states and 367 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:24:33,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:24:33,432 INFO L93 Difference]: Finished difference Result 416 states and 663 transitions. [2024-10-24 08:24:33,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 08:24:33,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-10-24 08:24:33,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:24:33,440 INFO L225 Difference]: With dead ends: 416 [2024-10-24 08:24:33,441 INFO L226 Difference]: Without dead ends: 237 [2024-10-24 08:24:33,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 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 08:24:33,445 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 64 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 08:24:33,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 219 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 08:24:33,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-10-24 08:24:33,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 231. [2024-10-24 08:24:33,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 146 states have (on average 1.3904109589041096) internal successors, (203), 146 states have internal predecessors, (203), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-24 08:24:33,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 365 transitions. [2024-10-24 08:24:33,485 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 365 transitions. Word has length 176 [2024-10-24 08:24:33,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:24:33,487 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 365 transitions. [2024-10-24 08:24:33,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:24:33,487 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 365 transitions. [2024-10-24 08:24:33,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-10-24 08:24:33,493 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:24:33,493 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:24:33,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 08:24:33,494 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:24:33,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:24:33,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1323649292, now seen corresponding path program 1 times [2024-10-24 08:24:33,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:24:33,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256159222] [2024-10-24 08:24:33,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:24:33,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:24:33,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:34,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:24:34,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:34,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:24:34,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:34,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:24:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:34,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:24:34,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:34,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:24:34,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:34,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:24:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:34,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:24:34,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:34,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:24:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:34,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:24:34,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:34,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 08:24:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:34,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 08:24:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:34,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 08:24:34,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:34,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 08:24:34,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:34,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 08:24:34,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:34,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 08:24:34,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:34,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 08:24:34,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:34,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 08:24:34,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:34,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 08:24:34,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:34,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 08:24:34,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:34,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 08:24:34,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:34,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 08:24:34,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:34,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 08:24:34,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:34,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 08:24:34,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:34,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 08:24:34,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:34,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 08:24:34,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:34,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 08:24:34,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:34,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 08:24:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:34,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 9 proven. 69 refuted. 0 times theorem prover too weak. 1326 trivial. 0 not checked. [2024-10-24 08:24:34,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:24:34,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256159222] [2024-10-24 08:24:34,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256159222] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 08:24:34,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785103430] [2024-10-24 08:24:34,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:24:34,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 08:24:34,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 08:24:34,275 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 08:24:34,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 08:24:34,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:34,415 INFO L255 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-24 08:24:34,425 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 08:24:35,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 308 proven. 69 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2024-10-24 08:24:35,646 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 08:24:36,377 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 9 proven. 69 refuted. 0 times theorem prover too weak. 1326 trivial. 0 not checked. [2024-10-24 08:24:36,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785103430] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 08:24:36,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 08:24:36,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 20 [2024-10-24 08:24:36,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137962424] [2024-10-24 08:24:36,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 08:24:36,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-24 08:24:36,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:24:36,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-24 08:24:36,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2024-10-24 08:24:36,381 INFO L87 Difference]: Start difference. First operand 231 states and 365 transitions. Second operand has 20 states, 20 states have (on average 6.25) internal successors, (125), 20 states have internal predecessors, (125), 6 states have call successors, (81), 3 states have call predecessors, (81), 6 states have return successors, (81), 6 states have call predecessors, (81), 6 states have call successors, (81) [2024-10-24 08:24:37,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:24:37,836 INFO L93 Difference]: Finished difference Result 474 states and 734 transitions. [2024-10-24 08:24:37,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-24 08:24:37,837 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.25) internal successors, (125), 20 states have internal predecessors, (125), 6 states have call successors, (81), 3 states have call predecessors, (81), 6 states have return successors, (81), 6 states have call predecessors, (81), 6 states have call successors, (81) Word has length 178 [2024-10-24 08:24:37,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:24:37,840 INFO L225 Difference]: With dead ends: 474 [2024-10-24 08:24:37,840 INFO L226 Difference]: Without dead ends: 310 [2024-10-24 08:24:37,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=381, Invalid=1259, Unknown=0, NotChecked=0, Total=1640 [2024-10-24 08:24:37,842 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 569 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 08:24:37,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 651 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 08:24:37,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2024-10-24 08:24:37,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 272. [2024-10-24 08:24:37,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 178 states have (on average 1.3651685393258426) internal successors, (243), 180 states have internal predecessors, (243), 87 states have call successors, (87), 6 states have call predecessors, (87), 6 states have return successors, (87), 85 states have call predecessors, (87), 87 states have call successors, (87) [2024-10-24 08:24:37,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 417 transitions. [2024-10-24 08:24:37,885 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 417 transitions. Word has length 178 [2024-10-24 08:24:37,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:24:37,885 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 417 transitions. [2024-10-24 08:24:37,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.25) internal successors, (125), 20 states have internal predecessors, (125), 6 states have call successors, (81), 3 states have call predecessors, (81), 6 states have return successors, (81), 6 states have call predecessors, (81), 6 states have call successors, (81) [2024-10-24 08:24:37,886 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 417 transitions. [2024-10-24 08:24:37,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-10-24 08:24:37,888 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:24:37,888 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:24:37,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 08:24:38,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 08:24:38,090 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:24:38,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:24:38,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1065483854, now seen corresponding path program 1 times [2024-10-24 08:24:38,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:24:38,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523519013] [2024-10-24 08:24:38,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:24:38,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:24:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 08:24:38,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [537459489] [2024-10-24 08:24:38,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:24:38,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 08:24:38,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 08:24:38,240 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 08:24:38,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 08:24:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:38,463 INFO L255 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-24 08:24:38,467 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 08:24:38,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 08:24:38,841 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 08:24:38,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:24:38,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523519013] [2024-10-24 08:24:38,842 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 08:24:38,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537459489] [2024-10-24 08:24:38,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537459489] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:24:38,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:24:38,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 08:24:38,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783073154] [2024-10-24 08:24:38,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:24:38,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 08:24:38,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:24:38,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 08:24:38,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 08:24:38,847 INFO L87 Difference]: Start difference. First operand 272 states and 417 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:24:39,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:24:39,204 INFO L93 Difference]: Finished difference Result 503 states and 772 transitions. [2024-10-24 08:24:39,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 08:24:39,205 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 178 [2024-10-24 08:24:39,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:24:39,209 INFO L225 Difference]: With dead ends: 503 [2024-10-24 08:24:39,209 INFO L226 Difference]: Without dead ends: 300 [2024-10-24 08:24:39,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 08:24:39,211 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 146 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 08:24:39,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 464 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 08:24:39,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-10-24 08:24:39,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 280. [2024-10-24 08:24:39,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 186 states have (on average 1.3655913978494623) internal successors, (254), 188 states have internal predecessors, (254), 87 states have call successors, (87), 6 states have call predecessors, (87), 6 states have return successors, (87), 85 states have call predecessors, (87), 87 states have call successors, (87) [2024-10-24 08:24:39,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 428 transitions. [2024-10-24 08:24:39,263 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 428 transitions. Word has length 178 [2024-10-24 08:24:39,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:24:39,264 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 428 transitions. [2024-10-24 08:24:39,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:24:39,264 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 428 transitions. [2024-10-24 08:24:39,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-24 08:24:39,266 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:24:39,266 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:24:39,285 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 08:24:39,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-24 08:24:39,471 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:24:39,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:24:39,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1820151249, now seen corresponding path program 1 times [2024-10-24 08:24:39,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:24:39,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633300410] [2024-10-24 08:24:39,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:24:39,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:24:39,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 08:24:39,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [871363934] [2024-10-24 08:24:39,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:24:39,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 08:24:39,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 08:24:39,651 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 08:24:39,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 08:24:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:24:39,834 INFO L255 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-10-24 08:24:39,839 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 08:24:42,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 275 proven. 363 refuted. 0 times theorem prover too weak. 766 trivial. 0 not checked. [2024-10-24 08:24:42,749 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 08:24:49,536 WARN L286 SmtUtils]: Spent 6.27s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-24 08:25:01,559 WARN L286 SmtUtils]: Spent 6.08s on a formula simplification that was a NOOP. DAG size: 27 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-24 08:25:27,671 WARN L286 SmtUtils]: Spent 10.01s on a formula simplification that was a NOOP. DAG size: 49 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-10-24 08:25:37,028 WARN L286 SmtUtils]: Spent 9.24s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)