./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-86.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-86.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 37de0228bdc926eeed8c36d9a0d9df874217b43056bdb710b9397461ea004e55 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 22:20:35,243 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:20:35,332 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 22:20:35,338 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:20:35,340 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 22:20:35,368 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:20:35,370 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 22:20:35,370 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 22:20:35,371 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 22:20:35,372 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 22:20:35,372 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:20:35,373 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 22:20:35,373 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:20:35,374 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:20:35,376 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 22:20:35,376 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:20:35,376 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:20:35,377 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 22:20:35,377 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:20:35,377 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 22:20:35,378 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:20:35,381 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:20:35,382 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:20:35,382 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:20:35,382 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:20:35,382 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 22:20:35,383 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:20:35,383 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:20:35,383 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:20:35,384 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 22:20:35,384 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 22:20:35,384 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 22:20:35,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 22:20:35,385 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:20:35,385 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:20:35,386 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:20:35,387 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 22:20:35,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:20:35,387 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 22:20:35,387 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 22:20:35,388 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 22:20:35,388 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 22:20:35,388 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 37de0228bdc926eeed8c36d9a0d9df874217b43056bdb710b9397461ea004e55 [2024-11-08 22:20:35,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:20:35,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:20:35,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:20:35,659 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:20:35,659 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:20:35,660 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-86.i [2024-11-08 22:20:37,168 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:20:37,363 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:20:37,363 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-86.i [2024-11-08 22:20:37,377 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40d41cd18/d11a017e2f1c4e8697692f562dacb074/FLAG62fb1a4d5 [2024-11-08 22:20:37,388 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40d41cd18/d11a017e2f1c4e8697692f562dacb074 [2024-11-08 22:20:37,390 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:20:37,391 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:20:37,392 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:20:37,392 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:20:37,396 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:20:37,397 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:20:37" (1/1) ... [2024-11-08 22:20:37,398 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@171bf85b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:37, skipping insertion in model container [2024-11-08 22:20:37,398 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:20:37" (1/1) ... [2024-11-08 22:20:37,432 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:20:37,596 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-86.i[919,932] [2024-11-08 22:20:37,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:20:37,672 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:20:37,683 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-86.i[919,932] [2024-11-08 22:20:37,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:20:37,740 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:20:37,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:37 WrapperNode [2024-11-08 22:20:37,741 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:20:37,742 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:20:37,742 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:20:37,742 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:20:37,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:37" (1/1) ... [2024-11-08 22:20:37,759 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:37" (1/1) ... [2024-11-08 22:20:37,801 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 236 [2024-11-08 22:20:37,801 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:20:37,802 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:20:37,802 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:20:37,802 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:20:37,816 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:37" (1/1) ... [2024-11-08 22:20:37,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:37" (1/1) ... [2024-11-08 22:20:37,822 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:37" (1/1) ... [2024-11-08 22:20:37,847 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 22:20:37,848 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:37" (1/1) ... [2024-11-08 22:20:37,848 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:37" (1/1) ... [2024-11-08 22:20:37,864 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:37" (1/1) ... [2024-11-08 22:20:37,872 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:37" (1/1) ... [2024-11-08 22:20:37,880 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:37" (1/1) ... [2024-11-08 22:20:37,887 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:37" (1/1) ... [2024-11-08 22:20:37,900 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:20:37,901 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:20:37,901 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:20:37,901 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:20:37,902 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:37" (1/1) ... [2024-11-08 22:20:37,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 22:20:37,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 22:20:37,957 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 22:20:37,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 22:20:38,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:20:38,006 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 22:20:38,006 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 22:20:38,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 22:20:38,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:20:38,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:20:38,105 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:20:38,107 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:20:38,619 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-08 22:20:38,620 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:20:38,651 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:20:38,652 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 22:20:38,653 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:20:38 BoogieIcfgContainer [2024-11-08 22:20:38,653 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:20:38,656 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 22:20:38,656 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 22:20:38,660 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 22:20:38,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 10:20:37" (1/3) ... [2024-11-08 22:20:38,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3847eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 10:20:38, skipping insertion in model container [2024-11-08 22:20:38,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:37" (2/3) ... [2024-11-08 22:20:38,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3847eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 10:20:38, skipping insertion in model container [2024-11-08 22:20:38,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:20:38" (3/3) ... [2024-11-08 22:20:38,664 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-86.i [2024-11-08 22:20:38,682 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 22:20:38,682 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 22:20:38,759 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 22:20:38,768 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;@76b3c8ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 22:20:38,768 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 22:20:38,773 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 68 states have (on average 1.4852941176470589) internal successors, (101), 69 states have internal predecessors, (101), 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) [2024-11-08 22:20:38,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-08 22:20:38,791 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:20:38,792 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] [2024-11-08 22:20:38,793 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:20:38,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:20:38,799 INFO L85 PathProgramCache]: Analyzing trace with hash -2015951129, now seen corresponding path program 1 times [2024-11-08 22:20:38,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:20:38,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61017552] [2024-11-08 22:20:38,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:20:38,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:20:38,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:20:39,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:20:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:20:39,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:20:39,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:20:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:20:39,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:20:39,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:20:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:20:39,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:20:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:20:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:20:39,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 22:20:39,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:20:39,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 22:20:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:20:39,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 22:20:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 22:20:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 22:20:39,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 22:20:39,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 22:20:39,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 22:20:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 22:20:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 22:20:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 22:20:39,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 22:20:39,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 22:20:39,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-08 22:20:39,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:20:39,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61017552] [2024-11-08 22:20:39,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61017552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:20:39,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:20:39,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 22:20:39,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552189575] [2024-11-08 22:20:39,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:20:39,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 22:20:39,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:20:39,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 22:20:39,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 22:20:39,424 INFO L87 Difference]: Start difference. First operand has 98 states, 68 states have (on average 1.4852941176470589) internal successors, (101), 69 states have internal predecessors, (101), 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 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-08 22:20:39,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:20:39,466 INFO L93 Difference]: Finished difference Result 189 states and 331 transitions. [2024-11-08 22:20:39,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 22:20:39,470 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) Word has length 175 [2024-11-08 22:20:39,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:20:39,480 INFO L225 Difference]: With dead ends: 189 [2024-11-08 22:20:39,480 INFO L226 Difference]: Without dead ends: 94 [2024-11-08 22:20:39,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 22:20:39,488 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 22:20:39,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 22:20:39,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-08 22:20:39,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-08 22:20:39,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 65 states have (on average 1.4307692307692308) internal successors, (93), 65 states have internal predecessors, (93), 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) [2024-11-08 22:20:39,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 147 transitions. [2024-11-08 22:20:39,553 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 147 transitions. Word has length 175 [2024-11-08 22:20:39,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:20:39,555 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 147 transitions. [2024-11-08 22:20:39,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-08 22:20:39,556 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 147 transitions. [2024-11-08 22:20:39,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-08 22:20:39,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:20:39,561 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] [2024-11-08 22:20:39,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 22:20:39,562 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:20:39,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:20:39,564 INFO L85 PathProgramCache]: Analyzing trace with hash 476781609, now seen corresponding path program 1 times [2024-11-08 22:20:39,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:20:39,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784723916] [2024-11-08 22:20:39,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:20:39,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:20:39,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:20:39,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:20:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:20:39,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:20:39,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:20:39,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:20:39,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:20:39,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:20:39,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:20:39,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:20:39,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:20:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:20:39,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 22:20:39,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:20:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:39,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 22:20:39,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:20:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 22:20:40,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 22:20:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 22:20:40,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 22:20:40,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 22:20:40,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 22:20:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 22:20:40,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 22:20:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 22:20:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 22:20:40,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 22:20:40,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-08 22:20:40,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:20:40,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784723916] [2024-11-08 22:20:40,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784723916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:20:40,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:20:40,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 22:20:40,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154214475] [2024-11-08 22:20:40,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:20:40,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 22:20:40,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:20:40,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 22:20:40,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 22:20:40,081 INFO L87 Difference]: Start difference. First operand 94 states and 147 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 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) [2024-11-08 22:20:40,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:20:40,125 INFO L93 Difference]: Finished difference Result 186 states and 293 transitions. [2024-11-08 22:20:40,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 22:20:40,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 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 [2024-11-08 22:20:40,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:20:40,131 INFO L225 Difference]: With dead ends: 186 [2024-11-08 22:20:40,131 INFO L226 Difference]: Without dead ends: 95 [2024-11-08 22:20:40,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 22:20:40,135 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 0 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 22:20:40,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 286 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 22:20:40,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-08 22:20:40,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-11-08 22:20:40,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 66 states have (on average 1.4242424242424243) internal successors, (94), 66 states have internal predecessors, (94), 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) [2024-11-08 22:20:40,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 148 transitions. [2024-11-08 22:20:40,158 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 148 transitions. Word has length 175 [2024-11-08 22:20:40,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:20:40,160 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 148 transitions. [2024-11-08 22:20:40,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 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) [2024-11-08 22:20:40,161 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 148 transitions. [2024-11-08 22:20:40,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-08 22:20:40,165 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:20:40,166 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] [2024-11-08 22:20:40,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 22:20:40,166 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:20:40,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:20:40,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1517363097, now seen corresponding path program 1 times [2024-11-08 22:20:40,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:20:40,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349495784] [2024-11-08 22:20:40,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:20:40,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:20:40,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:20:40,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:20:40,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:20:40,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:20:40,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:20:40,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:20:40,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:20:40,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:20:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:20:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:20:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:20:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:20:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 22:20:40,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:20:40,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 22:20:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:20:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 22:20:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 22:20:40,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 22:20:40,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 22:20:40,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 22:20:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 22:20:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 22:20:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 22:20:40,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 22:20:40,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 22:20:40,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 22:20:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:40,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-08 22:20:40,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:20:40,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349495784] [2024-11-08 22:20:40,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349495784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:20:40,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:20:40,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 22:20:40,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301964630] [2024-11-08 22:20:40,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:20:40,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 22:20:40,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:20:40,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 22:20:40,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 22:20:40,660 INFO L87 Difference]: Start difference. First operand 95 states and 148 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 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) [2024-11-08 22:20:40,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:20:40,928 INFO L93 Difference]: Finished difference Result 280 states and 439 transitions. [2024-11-08 22:20:40,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 22:20:40,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 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 [2024-11-08 22:20:40,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:20:40,932 INFO L225 Difference]: With dead ends: 280 [2024-11-08 22:20:40,932 INFO L226 Difference]: Without dead ends: 188 [2024-11-08 22:20:40,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 22:20:40,934 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 149 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 22:20:40,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 503 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 22:20:40,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-08 22:20:40,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 168. [2024-11-08 22:20:40,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 111 states have (on average 1.4054054054054055) internal successors, (156), 111 states have internal predecessors, (156), 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) [2024-11-08 22:20:40,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 264 transitions. [2024-11-08 22:20:40,959 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 264 transitions. Word has length 175 [2024-11-08 22:20:40,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:20:40,960 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 264 transitions. [2024-11-08 22:20:40,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 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) [2024-11-08 22:20:40,960 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 264 transitions. [2024-11-08 22:20:40,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-08 22:20:40,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:20:40,966 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] [2024-11-08 22:20:40,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 22:20:40,967 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:20:40,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:20:40,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1766486949, now seen corresponding path program 1 times [2024-11-08 22:20:40,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:20:40,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969632922] [2024-11-08 22:20:40,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:20:40,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:20:41,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:48,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:20:48,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:48,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:20:48,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:48,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:20:48,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:48,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:20:48,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:48,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:20:48,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:48,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:20:48,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:48,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:20:48,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:48,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:20:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:48,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:20:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:48,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:20:48,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:48,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:20:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:48,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:20:48,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:48,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 22:20:48,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:48,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:20:48,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:48,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 22:20:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:48,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:20:48,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:48,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 22:20:48,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:48,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 22:20:48,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:48,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 22:20:48,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:48,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 22:20:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:48,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 22:20:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:48,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 22:20:48,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:48,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 22:20:48,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:48,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 22:20:48,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:48,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 22:20:48,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:48,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 22:20:48,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:48,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 22:20:48,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:48,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-08 22:20:48,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:20:48,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969632922] [2024-11-08 22:20:48,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969632922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:20:48,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:20:48,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-08 22:20:48,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482861161] [2024-11-08 22:20:48,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:20:48,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-08 22:20:48,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:20:48,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-08 22:20:48,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-08 22:20:48,854 INFO L87 Difference]: Start difference. First operand 168 states and 264 transitions. Second operand has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 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) [2024-11-08 22:20:51,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:20:51,877 INFO L93 Difference]: Finished difference Result 357 states and 549 transitions. [2024-11-08 22:20:51,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-08 22:20:51,878 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 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 [2024-11-08 22:20:51,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:20:51,881 INFO L225 Difference]: With dead ends: 357 [2024-11-08 22:20:51,881 INFO L226 Difference]: Without dead ends: 265 [2024-11-08 22:20:51,883 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=233, Invalid=697, Unknown=0, NotChecked=0, Total=930 [2024-11-08 22:20:51,884 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 456 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 22:20:51,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 1060 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 22:20:51,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-08 22:20:51,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 210. [2024-11-08 22:20:51,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 153 states have (on average 1.4313725490196079) internal successors, (219), 153 states have internal predecessors, (219), 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) [2024-11-08 22:20:51,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 327 transitions. [2024-11-08 22:20:51,907 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 327 transitions. Word has length 175 [2024-11-08 22:20:51,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:20:51,908 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 327 transitions. [2024-11-08 22:20:51,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 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) [2024-11-08 22:20:51,908 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 327 transitions. [2024-11-08 22:20:51,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-08 22:20:51,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:20:51,913 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] [2024-11-08 22:20:51,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 22:20:51,913 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:20:51,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:20:51,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1985341667, now seen corresponding path program 1 times [2024-11-08 22:20:51,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:20:51,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035072501] [2024-11-08 22:20:51,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:20:51,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:20:51,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:20:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:20:52,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:20:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:20:52,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:20:52,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:20:52,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:20:52,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:20:52,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:20:52,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:20:52,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:20:52,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:20:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 22:20:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:20:52,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 22:20:52,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:20:52,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 22:20:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 22:20:52,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 22:20:52,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 22:20:52,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 22:20:52,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 22:20:52,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 22:20:52,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 22:20:52,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 22:20:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 22:20:52,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 22:20:52,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-08 22:20:52,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:20:52,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035072501] [2024-11-08 22:20:52,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035072501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:20:52,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:20:52,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 22:20:52,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825129923] [2024-11-08 22:20:52,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:20:52,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 22:20:52,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:20:52,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 22:20:52,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 22:20:52,223 INFO L87 Difference]: Start difference. First operand 210 states and 327 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) [2024-11-08 22:20:52,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:20:52,305 INFO L93 Difference]: Finished difference Result 486 states and 759 transitions. [2024-11-08 22:20:52,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 22:20:52,306 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 [2024-11-08 22:20:52,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:20:52,309 INFO L225 Difference]: With dead ends: 486 [2024-11-08 22:20:52,310 INFO L226 Difference]: Without dead ends: 394 [2024-11-08 22:20:52,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 22:20:52,311 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 275 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 22:20:52,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 556 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 22:20:52,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-11-08 22:20:52,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 355. [2024-11-08 22:20:52,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 270 states have (on average 1.4666666666666666) internal successors, (396), 270 states have internal predecessors, (396), 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) [2024-11-08 22:20:52,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 558 transitions. [2024-11-08 22:20:52,337 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 558 transitions. Word has length 175 [2024-11-08 22:20:52,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:20:52,338 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 558 transitions. [2024-11-08 22:20:52,338 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) [2024-11-08 22:20:52,339 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 558 transitions. [2024-11-08 22:20:52,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-08 22:20:52,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:20:52,341 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] [2024-11-08 22:20:52,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 22:20:52,341 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:20:52,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:20:52,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1232134917, now seen corresponding path program 1 times [2024-11-08 22:20:52,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:20:52,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145297634] [2024-11-08 22:20:52,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:20:52,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:20:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:20:52,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:20:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:20:52,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:20:52,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:20:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:20:52,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:20:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:20:52,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:20:52,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:20:52,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:20:52,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:20:52,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 22:20:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:20:52,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 22:20:52,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:20:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 22:20:52,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 22:20:52,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 22:20:52,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 22:20:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 22:20:52,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 22:20:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 22:20:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 22:20:52,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 22:20:52,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 22:20:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 22:20:52,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:52,590 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-08 22:20:52,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:20:52,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145297634] [2024-11-08 22:20:52,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145297634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:20:52,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:20:52,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 22:20:52,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821495797] [2024-11-08 22:20:52,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:20:52,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 22:20:52,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:20:52,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 22:20:52,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 22:20:52,592 INFO L87 Difference]: Start difference. First operand 355 states and 558 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) [2024-11-08 22:20:52,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:20:52,650 INFO L93 Difference]: Finished difference Result 604 states and 950 transitions. [2024-11-08 22:20:52,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 22:20:52,652 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 [2024-11-08 22:20:52,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:20:52,655 INFO L225 Difference]: With dead ends: 604 [2024-11-08 22:20:52,655 INFO L226 Difference]: Without dead ends: 364 [2024-11-08 22:20:52,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 22:20:52,658 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 6 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 22:20:52,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 272 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 22:20:52,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-11-08 22:20:52,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 355. [2024-11-08 22:20:52,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 270 states have (on average 1.4555555555555555) internal successors, (393), 270 states have internal predecessors, (393), 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) [2024-11-08 22:20:52,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 555 transitions. [2024-11-08 22:20:52,690 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 555 transitions. Word has length 176 [2024-11-08 22:20:52,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:20:52,691 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 555 transitions. [2024-11-08 22:20:52,692 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) [2024-11-08 22:20:52,692 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 555 transitions. [2024-11-08 22:20:52,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-08 22:20:52,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:20:52,694 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] [2024-11-08 22:20:52,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 22:20:52,694 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:20:52,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:20:52,695 INFO L85 PathProgramCache]: Analyzing trace with hash 542872445, now seen corresponding path program 1 times [2024-11-08 22:20:52,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:20:52,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503843816] [2024-11-08 22:20:52,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:20:52,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:20:52,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:57,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:20:57,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:57,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:20:57,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:57,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:20:57,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:57,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:20:57,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:57,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:20:57,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:57,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:20:57,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:57,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:20:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:57,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:20:57,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:57,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:20:57,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:57,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:20:57,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:57,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:20:57,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:57,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:20:57,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:57,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 22:20:57,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:57,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:20:57,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:57,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 22:20:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:57,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:20:57,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:57,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 22:20:57,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:57,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 22:20:57,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:57,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 22:20:57,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:57,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 22:20:57,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:57,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 22:20:57,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:57,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 22:20:57,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:57,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 22:20:57,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:57,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 22:20:57,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:57,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 22:20:57,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:57,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 22:20:57,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:57,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 22:20:57,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:20:57,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-08 22:20:57,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:20:57,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503843816] [2024-11-08 22:20:57,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503843816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:20:57,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:20:57,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-08 22:20:57,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378450402] [2024-11-08 22:20:57,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:20:57,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-08 22:20:57,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:20:57,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-08 22:20:57,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-08 22:20:57,875 INFO L87 Difference]: Start difference. First operand 355 states and 555 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 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) [2024-11-08 22:21:01,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:21:01,009 INFO L93 Difference]: Finished difference Result 652 states and 999 transitions. [2024-11-08 22:21:01,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-08 22:21:01,012 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 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 [2024-11-08 22:21:01,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:21:01,015 INFO L225 Difference]: With dead ends: 652 [2024-11-08 22:21:01,017 INFO L226 Difference]: Without dead ends: 415 [2024-11-08 22:21:01,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=276, Invalid=846, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 22:21:01,020 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 478 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 22:21:01,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 998 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 22:21:01,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-11-08 22:21:01,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 356. [2024-11-08 22:21:01,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 271 states have (on average 1.4538745387453875) internal successors, (394), 271 states have internal predecessors, (394), 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) [2024-11-08 22:21:01,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 556 transitions. [2024-11-08 22:21:01,055 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 556 transitions. Word has length 176 [2024-11-08 22:21:01,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:21:01,056 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 556 transitions. [2024-11-08 22:21:01,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 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) [2024-11-08 22:21:01,056 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 556 transitions. [2024-11-08 22:21:01,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-08 22:21:01,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:21:01,061 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] [2024-11-08 22:21:01,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 22:21:01,061 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:21:01,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:21:01,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1019977503, now seen corresponding path program 1 times [2024-11-08 22:21:01,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:21:01,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086548938] [2024-11-08 22:21:01,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:21:01,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:21:01,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:11,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:21:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:11,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:21:11,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:11,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:21:11,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:11,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:21:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:11,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:21:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:11,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:21:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:11,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:21:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:11,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:21:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:11,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:21:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:11,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:21:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:11,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:21:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:11,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:21:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:11,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 22:21:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:11,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:21:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:11,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 22:21:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:11,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:21:11,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:11,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 22:21:11,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:11,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 22:21:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:11,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 22:21:11,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:11,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 22:21:11,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:11,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 22:21:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:11,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 22:21:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:11,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 22:21:11,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:11,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 22:21:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:11,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 22:21:11,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:11,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 22:21:11,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:11,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 22:21:11,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:11,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-08 22:21:11,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:21:11,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086548938] [2024-11-08 22:21:11,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086548938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:21:11,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:21:11,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-08 22:21:11,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797708256] [2024-11-08 22:21:11,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:21:11,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-08 22:21:11,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:21:11,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-08 22:21:11,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2024-11-08 22:21:11,095 INFO L87 Difference]: Start difference. First operand 356 states and 556 transitions. Second operand has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 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) [2024-11-08 22:21:15,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:21:15,854 INFO L93 Difference]: Finished difference Result 413 states and 620 transitions. [2024-11-08 22:21:15,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-08 22:21:15,855 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 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 [2024-11-08 22:21:15,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:21:15,858 INFO L225 Difference]: With dead ends: 413 [2024-11-08 22:21:15,859 INFO L226 Difference]: Without dead ends: 411 [2024-11-08 22:21:15,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=262, Invalid=794, Unknown=0, NotChecked=0, Total=1056 [2024-11-08 22:21:15,860 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 421 mSDsluCounter, 1035 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 22:21:15,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 1175 Invalid, 834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 22:21:15,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-11-08 22:21:15,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 359. [2024-11-08 22:21:15,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 274 states have (on average 1.4525547445255473) internal successors, (398), 274 states have internal predecessors, (398), 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) [2024-11-08 22:21:15,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 560 transitions. [2024-11-08 22:21:15,898 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 560 transitions. Word has length 176 [2024-11-08 22:21:15,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:21:15,898 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 560 transitions. [2024-11-08 22:21:15,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 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) [2024-11-08 22:21:15,899 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 560 transitions. [2024-11-08 22:21:15,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-08 22:21:15,901 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:21:15,901 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] [2024-11-08 22:21:15,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 22:21:15,902 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:21:15,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:21:15,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1706688612, now seen corresponding path program 1 times [2024-11-08 22:21:15,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:21:15,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120024319] [2024-11-08 22:21:15,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:21:15,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:21:15,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:20,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:21:20,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:20,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:21:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:20,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:21:20,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:20,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:21:20,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:20,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:21:20,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:20,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:21:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:20,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:21:20,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:20,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:21:20,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:20,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:21:20,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:20,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:21:20,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:20,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:21:20,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:20,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:21:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:20,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 22:21:20,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:20,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:21:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:20,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 22:21:20,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:20,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:21:20,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:20,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 22:21:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:20,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 22:21:20,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:20,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 22:21:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:20,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 22:21:20,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:20,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 22:21:20,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:20,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 22:21:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:20,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 22:21:20,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:20,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 22:21:20,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:20,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 22:21:20,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:20,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 22:21:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:20,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 22:21:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:20,226 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-08 22:21:20,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:21:20,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120024319] [2024-11-08 22:21:20,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120024319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:21:20,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:21:20,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-08 22:21:20,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747800955] [2024-11-08 22:21:20,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:21:20,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-08 22:21:20,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:21:20,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-08 22:21:20,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-08 22:21:20,229 INFO L87 Difference]: Start difference. First operand 359 states and 560 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 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) [2024-11-08 22:21:23,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:21:23,294 INFO L93 Difference]: Finished difference Result 430 states and 641 transitions. [2024-11-08 22:21:23,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 22:21:23,295 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 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 [2024-11-08 22:21:23,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:21:23,298 INFO L225 Difference]: With dead ends: 430 [2024-11-08 22:21:23,298 INFO L226 Difference]: Without dead ends: 428 [2024-11-08 22:21:23,300 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=233, Invalid=637, Unknown=0, NotChecked=0, Total=870 [2024-11-08 22:21:23,301 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 403 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 1150 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 22:21:23,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 1150 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 22:21:23,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-11-08 22:21:23,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 371. [2024-11-08 22:21:23,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 286 states have (on average 1.444055944055944) internal successors, (413), 286 states have internal predecessors, (413), 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) [2024-11-08 22:21:23,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 575 transitions. [2024-11-08 22:21:23,330 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 575 transitions. Word has length 176 [2024-11-08 22:21:23,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:21:23,331 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 575 transitions. [2024-11-08 22:21:23,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 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) [2024-11-08 22:21:23,331 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 575 transitions. [2024-11-08 22:21:23,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-08 22:21:23,333 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:21:23,333 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] [2024-11-08 22:21:23,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 22:21:23,333 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:21:23,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:21:23,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1026630242, now seen corresponding path program 1 times [2024-11-08 22:21:23,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:21:23,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602817852] [2024-11-08 22:21:23,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:21:23,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:21:23,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:28,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:21:28,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:28,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:21:28,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:28,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:21:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:28,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:21:28,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:28,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:21:28,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:28,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:21:28,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:28,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:21:28,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:28,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:21:28,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:28,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:21:28,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:28,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:21:28,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:28,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:21:28,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:28,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:21:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:28,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 22:21:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:28,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:21:28,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:28,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 22:21:28,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:28,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:21:28,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:28,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 22:21:28,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:28,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 22:21:28,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:28,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 22:21:28,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:28,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 22:21:28,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:28,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 22:21:28,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:28,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 22:21:28,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:28,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 22:21:28,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:28,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 22:21:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:28,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 22:21:28,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:29,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 22:21:29,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:29,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 22:21:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:29,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-08 22:21:29,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:21:29,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602817852] [2024-11-08 22:21:29,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602817852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:21:29,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:21:29,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-08 22:21:29,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751754018] [2024-11-08 22:21:29,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:21:29,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-08 22:21:29,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:21:29,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-08 22:21:29,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-08 22:21:29,010 INFO L87 Difference]: Start difference. First operand 371 states and 575 transitions. Second operand has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 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) [2024-11-08 22:21:32,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:21:32,849 INFO L93 Difference]: Finished difference Result 424 states and 635 transitions. [2024-11-08 22:21:32,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 22:21:32,851 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 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 [2024-11-08 22:21:32,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:21:32,854 INFO L225 Difference]: With dead ends: 424 [2024-11-08 22:21:32,854 INFO L226 Difference]: Without dead ends: 422 [2024-11-08 22:21:32,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=251, Invalid=679, Unknown=0, NotChecked=0, Total=930 [2024-11-08 22:21:32,857 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 316 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 1290 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 22:21:32,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 1290 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 22:21:32,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2024-11-08 22:21:32,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 371. [2024-11-08 22:21:32,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 286 states have (on average 1.444055944055944) internal successors, (413), 286 states have internal predecessors, (413), 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) [2024-11-08 22:21:32,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 575 transitions. [2024-11-08 22:21:32,881 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 575 transitions. Word has length 176 [2024-11-08 22:21:32,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:21:32,882 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 575 transitions. [2024-11-08 22:21:32,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 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) [2024-11-08 22:21:32,882 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 575 transitions. [2024-11-08 22:21:32,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-08 22:21:32,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:21:32,884 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] [2024-11-08 22:21:32,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 22:21:32,885 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:21:32,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:21:32,885 INFO L85 PathProgramCache]: Analyzing trace with hash -297321463, now seen corresponding path program 1 times [2024-11-08 22:21:32,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:21:32,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391810914] [2024-11-08 22:21:32,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:21:32,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:21:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:37,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:21:37,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:37,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:21:37,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:37,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:21:37,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:37,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:21:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:37,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:21:37,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:37,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:21:37,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:37,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:21:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:37,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:21:37,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:37,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:21:37,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:37,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:21:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:37,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:21:37,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:37,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:21:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:37,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 22:21:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:37,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:21:37,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:37,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 22:21:37,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:37,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:21:37,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:37,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 22:21:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:37,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 22:21:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:37,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 22:21:37,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:37,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 22:21:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:37,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 22:21:37,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:37,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 22:21:37,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:37,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 22:21:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:37,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 22:21:37,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:37,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 22:21:37,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:37,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 22:21:37,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:37,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 22:21:37,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:37,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-08 22:21:37,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:21:37,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391810914] [2024-11-08 22:21:37,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391810914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:21:37,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:21:37,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-08 22:21:37,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280704623] [2024-11-08 22:21:37,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:21:37,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-08 22:21:37,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:21:37,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-08 22:21:37,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-11-08 22:21:37,227 INFO L87 Difference]: Start difference. First operand 371 states and 575 transitions. Second operand has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 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) [2024-11-08 22:21:40,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:21:40,440 INFO L93 Difference]: Finished difference Result 418 states and 626 transitions. [2024-11-08 22:21:40,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-08 22:21:40,441 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 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 177 [2024-11-08 22:21:40,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:21:40,444 INFO L225 Difference]: With dead ends: 418 [2024-11-08 22:21:40,446 INFO L226 Difference]: Without dead ends: 416 [2024-11-08 22:21:40,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=336, Invalid=996, Unknown=0, NotChecked=0, Total=1332 [2024-11-08 22:21:40,447 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 366 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 22:21:40,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 1229 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 889 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 22:21:40,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-11-08 22:21:40,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 368. [2024-11-08 22:21:40,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 283 states have (on average 1.4452296819787986) internal successors, (409), 283 states have internal predecessors, (409), 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) [2024-11-08 22:21:40,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 571 transitions. [2024-11-08 22:21:40,471 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 571 transitions. Word has length 177 [2024-11-08 22:21:40,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:21:40,472 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 571 transitions. [2024-11-08 22:21:40,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 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) [2024-11-08 22:21:40,472 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 571 transitions. [2024-11-08 22:21:40,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-08 22:21:40,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:21:40,473 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] [2024-11-08 22:21:40,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 22:21:40,474 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:21:40,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:21:40,474 INFO L85 PathProgramCache]: Analyzing trace with hash 284792409, now seen corresponding path program 1 times [2024-11-08 22:21:40,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:21:40,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910833706] [2024-11-08 22:21:40,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:21:40,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:21:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:49,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:21:49,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:49,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:21:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:49,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:21:49,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:49,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:21:49,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:49,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:21:49,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:49,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:21:49,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:49,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:21:49,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:49,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:21:49,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:49,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:21:49,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:49,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:21:49,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:49,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:21:49,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:49,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:21:49,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:49,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 22:21:49,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:49,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:21:49,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:49,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 22:21:49,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:49,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:21:49,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:49,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 22:21:49,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:49,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 22:21:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:49,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 22:21:49,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:49,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 22:21:49,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:49,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 22:21:49,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:49,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 22:21:49,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:49,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 22:21:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:49,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 22:21:49,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:49,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 22:21:49,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:49,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 22:21:49,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:49,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 22:21:49,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:21:49,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-08 22:21:49,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:21:49,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910833706] [2024-11-08 22:21:49,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910833706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:21:49,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:21:49,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-08 22:21:49,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530794446] [2024-11-08 22:21:49,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:21:49,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 22:21:49,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:21:49,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 22:21:49,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2024-11-08 22:21:49,951 INFO L87 Difference]: Start difference. First operand 368 states and 571 transitions. Second operand has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 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)