./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_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-pr-co_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 1e62b2891163903ae3ee64b4d61486cfcc5cc9524351bb686ca581fbf5cc2640 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 22:09:44,436 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:09:44,504 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 22:09:44,510 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:09:44,511 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 22:09:44,534 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:09:44,534 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 22:09:44,536 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 22:09:44,536 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 22:09:44,538 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 22:09:44,538 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:09:44,539 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 22:09:44,539 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:09:44,540 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:09:44,540 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 22:09:44,541 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:09:44,541 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:09:44,542 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 22:09:44,542 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:09:44,542 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 22:09:44,542 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:09:44,546 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:09:44,546 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:09:44,546 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:09:44,546 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:09:44,547 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 22:09:44,547 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:09:44,547 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:09:44,547 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:09:44,547 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 22:09:44,548 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 22:09:44,548 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 22:09:44,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 22:09:44,548 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:09:44,548 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:09:44,549 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:09:44,549 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 22:09:44,549 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:09:44,549 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 22:09:44,550 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 22:09:44,550 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 22:09:44,551 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 22:09:44,551 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e62b2891163903ae3ee64b4d61486cfcc5cc9524351bb686ca581fbf5cc2640 [2024-11-08 22:09:44,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:09:44,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:09:44,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:09:44,871 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:09:44,871 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:09:44,872 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-86.i [2024-11-08 22:09:46,290 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:09:46,526 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:09:46,530 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-86.i [2024-11-08 22:09:46,544 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb8bcbcd3/5c8f76a50af04b0f9775fd1dea30b430/FLAG4b3590f60 [2024-11-08 22:09:46,558 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb8bcbcd3/5c8f76a50af04b0f9775fd1dea30b430 [2024-11-08 22:09:46,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:09:46,561 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:09:46,562 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:09:46,562 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:09:46,567 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:09:46,567 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:09:46" (1/1) ... [2024-11-08 22:09:46,568 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@295d6140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:09:46, skipping insertion in model container [2024-11-08 22:09:46,568 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:09:46" (1/1) ... [2024-11-08 22:09:46,594 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:09:46,768 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-pr-co_file-86.i[919,932] [2024-11-08 22:09:46,869 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:09:46,885 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:09:46,897 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-pr-co_file-86.i[919,932] [2024-11-08 22:09:46,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:09:46,972 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:09:46,972 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:09:46 WrapperNode [2024-11-08 22:09:46,973 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:09:46,974 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:09:46,977 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:09:46,977 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:09:46,985 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:09:46" (1/1) ... [2024-11-08 22:09:47,000 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:09:46" (1/1) ... [2024-11-08 22:09:47,043 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 236 [2024-11-08 22:09:47,044 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:09:47,045 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:09:47,045 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:09:47,046 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:09:47,056 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:09:46" (1/1) ... [2024-11-08 22:09:47,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:09:46" (1/1) ... [2024-11-08 22:09:47,066 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:09:46" (1/1) ... [2024-11-08 22:09:47,087 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 22:09:47,087 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:09:46" (1/1) ... [2024-11-08 22:09:47,088 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:09:46" (1/1) ... [2024-11-08 22:09:47,098 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:09:46" (1/1) ... [2024-11-08 22:09:47,101 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:09:46" (1/1) ... [2024-11-08 22:09:47,105 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:09:46" (1/1) ... [2024-11-08 22:09:47,108 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:09:46" (1/1) ... [2024-11-08 22:09:47,114 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:09:47,115 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:09:47,116 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:09:47,116 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:09:47,121 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:09:46" (1/1) ... [2024-11-08 22:09:47,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 22:09:47,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 22:09:47,153 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 22:09:47,159 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 22:09:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:09:47,207 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 22:09:47,208 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 22:09:47,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 22:09:47,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:09:47,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:09:47,310 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:09:47,313 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:09:47,772 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-08 22:09:47,773 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:09:47,789 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:09:47,790 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 22:09:47,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:09:47 BoogieIcfgContainer [2024-11-08 22:09:47,791 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:09:47,793 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 22:09:47,793 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 22:09:47,796 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 22:09:47,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 10:09:46" (1/3) ... [2024-11-08 22:09:47,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a62866a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 10:09:47, skipping insertion in model container [2024-11-08 22:09:47,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:09:46" (2/3) ... [2024-11-08 22:09:47,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a62866a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 10:09:47, skipping insertion in model container [2024-11-08 22:09:47,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:09:47" (3/3) ... [2024-11-08 22:09:47,800 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-86.i [2024-11-08 22:09:47,816 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 22:09:47,817 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 22:09:47,882 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 22:09:47,892 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;@179b73ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 22:09:47,893 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 22:09:47,897 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 67 states have (on average 1.492537313432836) internal successors, (100), 68 states have internal predecessors, (100), 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 22:09:47,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-08 22:09:47,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:09:47,915 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 22:09:47,916 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:09:47,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:09:47,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1953080171, now seen corresponding path program 1 times [2024-11-08 22:09:47,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:09:47,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433752644] [2024-11-08 22:09:47,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:09:47,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:09:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:09:48,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:09:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:09:48,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:09:48,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:09:48,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:09:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:09:48,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:09:48,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:09:48,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:09:48,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:09:48,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:09:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 22:09:48,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:09:48,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 22:09:48,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:09:48,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 22:09:48,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 22:09:48,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 22:09:48,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 22:09:48,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 22:09:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 22:09:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 22:09:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 22:09:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 22:09:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 22:09:48,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 22:09:48,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,488 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 22:09:48,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:09:48,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433752644] [2024-11-08 22:09:48,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433752644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:09:48,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:09:48,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 22:09:48,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524283252] [2024-11-08 22:09:48,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:09:48,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 22:09:48,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:09:48,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 22:09:48,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 22:09:48,525 INFO L87 Difference]: Start difference. First operand has 97 states, 67 states have (on average 1.492537313432836) internal successors, (100), 68 states have internal predecessors, (100), 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 21.0) internal successors, (42), 2 states have internal predecessors, (42), 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 22:09:48,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:09:48,564 INFO L93 Difference]: Finished difference Result 187 states and 329 transitions. [2024-11-08 22:09:48,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 22:09:48,567 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 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 174 [2024-11-08 22:09:48,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:09:48,574 INFO L225 Difference]: With dead ends: 187 [2024-11-08 22:09:48,574 INFO L226 Difference]: Without dead ends: 93 [2024-11-08 22:09:48,578 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 22:09:48,581 INFO L432 NwaCegarLoop]: 146 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, 146 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 22:09:48,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 22:09:48,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-08 22:09:48,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-08 22:09:48,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 64 states have (on average 1.4375) internal successors, (92), 64 states have internal predecessors, (92), 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 22:09:48,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 146 transitions. [2024-11-08 22:09:48,645 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 146 transitions. Word has length 174 [2024-11-08 22:09:48,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:09:48,647 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 146 transitions. [2024-11-08 22:09:48,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 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 22:09:48,648 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 146 transitions. [2024-11-08 22:09:48,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-08 22:09:48,652 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:09:48,652 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 22:09:48,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 22:09:48,653 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:09:48,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:09:48,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1318480109, now seen corresponding path program 1 times [2024-11-08 22:09:48,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:09:48,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924929087] [2024-11-08 22:09:48,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:09:48,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:09:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:09:48,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:09:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:09:48,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:09:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:09:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:09:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:09:48,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:09:48,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:09:48,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:09:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:09:48,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:09:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:48,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 22:09:48,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:09:49,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 22:09:49,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:09:49,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 22:09:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 22:09:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 22:09:49,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 22:09:49,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 22:09:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 22:09:49,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 22:09:49,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 22:09:49,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 22:09:49,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 22:09:49,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 22:09:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,035 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 22:09:49,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:09:49,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924929087] [2024-11-08 22:09:49,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924929087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:09:49,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:09:49,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 22:09:49,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333846146] [2024-11-08 22:09:49,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:09:49,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 22:09:49,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:09:49,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 22:09:49,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 22:09:49,041 INFO L87 Difference]: Start difference. First operand 93 states and 146 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-08 22:09:49,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:09:49,086 INFO L93 Difference]: Finished difference Result 184 states and 291 transitions. [2024-11-08 22:09:49,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 22:09:49,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-08 22:09:49,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:09:49,089 INFO L225 Difference]: With dead ends: 184 [2024-11-08 22:09:49,089 INFO L226 Difference]: Without dead ends: 94 [2024-11-08 22:09:49,092 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 22:09:49,093 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 0 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 284 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 22:09:49,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 284 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 22:09:49,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-08 22:09:49,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-08 22:09:49,113 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 22:09:49,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 147 transitions. [2024-11-08 22:09:49,117 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 147 transitions. Word has length 174 [2024-11-08 22:09:49,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:09:49,119 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 147 transitions. [2024-11-08 22:09:49,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-08 22:09:49,119 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 147 transitions. [2024-11-08 22:09:49,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-08 22:09:49,125 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:09:49,126 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 22:09:49,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 22:09:49,126 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:09:49,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:09:49,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1696623509, now seen corresponding path program 1 times [2024-11-08 22:09:49,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:09:49,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994423408] [2024-11-08 22:09:49,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:09:49,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:09:49,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:09:49,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:09:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:09:49,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:09:49,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:09:49,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:09:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:09:49,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:09:49,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:09:49,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:09:49,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:09:49,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:09:49,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 22:09:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:09:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 22:09:49,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:09:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 22:09:49,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 22:09:49,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 22:09:49,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 22:09:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 22:09:49,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 22:09:49,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 22:09:49,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 22:09:49,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 22:09:49,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 22:09:49,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 22:09:49,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:49,545 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 22:09:49,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:09:49,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994423408] [2024-11-08 22:09:49,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994423408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:09:49,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:09:49,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 22:09:49,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072123290] [2024-11-08 22:09:49,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:09:49,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 22:09:49,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:09:49,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 22:09:49,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 22:09:49,552 INFO L87 Difference]: Start difference. First operand 94 states and 147 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-08 22:09:49,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:09:49,878 INFO L93 Difference]: Finished difference Result 277 states and 436 transitions. [2024-11-08 22:09:49,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 22:09:49,880 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-08 22:09:49,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:09:49,884 INFO L225 Difference]: With dead ends: 277 [2024-11-08 22:09:49,887 INFO L226 Difference]: Without dead ends: 186 [2024-11-08 22:09:49,888 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 22:09:49,889 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 149 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 22:09:49,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 457 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 22:09:49,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-11-08 22:09:49,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 167. [2024-11-08 22:09:49,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 110 states have (on average 1.4) internal successors, (154), 110 states have internal predecessors, (154), 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 22:09:49,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 262 transitions. [2024-11-08 22:09:49,950 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 262 transitions. Word has length 174 [2024-11-08 22:09:49,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:09:49,951 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 262 transitions. [2024-11-08 22:09:49,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-08 22:09:49,951 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 262 transitions. [2024-11-08 22:09:49,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-08 22:09:49,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:09:49,958 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 22:09:49,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 22:09:49,958 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:09:49,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:09:49,959 INFO L85 PathProgramCache]: Analyzing trace with hash 2119325335, now seen corresponding path program 1 times [2024-11-08 22:09:49,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:09:49,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779712188] [2024-11-08 22:09:49,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:09:49,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:09:50,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:50,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:09:50,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:50,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:09:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:50,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:09:50,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:50,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:09:50,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:50,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:09:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:50,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:09:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:50,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:09:50,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:50,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:09:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:50,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:09:50,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:50,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:09:50,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:50,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:09:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:50,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:09:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:50,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 22:09:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:50,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:09:50,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:50,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 22:09:50,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:50,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:09:50,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:50,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 22:09:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:50,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 22:09:50,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:50,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 22:09:50,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:50,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 22:09:50,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:50,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 22:09:50,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:50,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 22:09:50,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:50,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 22:09:50,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:50,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 22:09:50,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:50,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 22:09:50,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:50,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 22:09:50,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:50,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 22:09:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:50,284 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 22:09:50,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:09:50,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779712188] [2024-11-08 22:09:50,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779712188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:09:50,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:09:50,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 22:09:50,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311329106] [2024-11-08 22:09:50,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:09:50,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 22:09:50,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:09:50,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 22:09:50,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 22:09:50,286 INFO L87 Difference]: Start difference. First operand 167 states and 262 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-08 22:09:50,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:09:50,343 INFO L93 Difference]: Finished difference Result 380 states and 599 transitions. [2024-11-08 22:09:50,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 22:09:50,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-08 22:09:50,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:09:50,349 INFO L225 Difference]: With dead ends: 380 [2024-11-08 22:09:50,352 INFO L226 Difference]: Without dead ends: 264 [2024-11-08 22:09:50,353 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 22:09:50,354 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 98 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 22:09:50,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 319 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 22:09:50,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-08 22:09:50,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 262. [2024-11-08 22:09:50,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 177 states have (on average 1.4124293785310735) internal successors, (250), 177 states have internal predecessors, (250), 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 22:09:50,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 412 transitions. [2024-11-08 22:09:50,408 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 412 transitions. Word has length 174 [2024-11-08 22:09:50,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:09:50,409 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 412 transitions. [2024-11-08 22:09:50,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-08 22:09:50,409 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 412 transitions. [2024-11-08 22:09:50,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-08 22:09:50,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:09:50,412 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 22:09:50,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 22:09:50,412 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:09:50,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:09:50,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1301676885, now seen corresponding path program 1 times [2024-11-08 22:09:50,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:09:50,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981104893] [2024-11-08 22:09:50,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:09:50,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:09:50,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:55,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:09:55,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:55,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:09:55,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:55,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:09:55,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:55,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:09:55,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:55,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:09:55,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:55,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:09:55,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:55,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:09:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:55,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:09:55,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:55,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:09:55,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:55,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:09:55,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:55,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:09:55,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:55,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:09:55,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:55,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 22:09:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:55,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:09:55,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:55,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 22:09:55,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:55,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:09:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:55,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 22:09:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:55,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 22:09:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:55,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 22:09:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:55,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 22:09:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:55,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 22:09:55,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:55,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 22:09:55,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:55,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 22:09:55,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:55,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 22:09:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:55,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 22:09:55,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:55,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 22:09:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:55,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 22:09:55,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:55,425 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 22:09:55,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:09:55,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981104893] [2024-11-08 22:09:55,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981104893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:09:55,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:09:55,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-08 22:09:55,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918601016] [2024-11-08 22:09:55,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:09:55,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 22:09:55,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:09:55,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 22:09:55,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-08 22:09:55,431 INFO L87 Difference]: Start difference. First operand 262 states and 412 transitions. Second operand has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-08 22:09:56,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:09:56,701 INFO L93 Difference]: Finished difference Result 590 states and 921 transitions. [2024-11-08 22:09:56,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 22:09:56,703 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-08 22:09:56,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:09:56,706 INFO L225 Difference]: With dead ends: 590 [2024-11-08 22:09:56,706 INFO L226 Difference]: Without dead ends: 382 [2024-11-08 22:09:56,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2024-11-08 22:09:56,708 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 644 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 22:09:56,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 888 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 22:09:56,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-11-08 22:09:56,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 300. [2024-11-08 22:09:56,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 215 states have (on average 1.427906976744186) internal successors, (307), 215 states have internal predecessors, (307), 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 22:09:56,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 469 transitions. [2024-11-08 22:09:56,743 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 469 transitions. Word has length 174 [2024-11-08 22:09:56,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:09:56,745 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 469 transitions. [2024-11-08 22:09:56,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-08 22:09:56,746 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 469 transitions. [2024-11-08 22:09:56,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-08 22:09:56,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:09:56,748 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 22:09:56,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 22:09:56,748 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:09:56,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:09:56,749 INFO L85 PathProgramCache]: Analyzing trace with hash 290559635, now seen corresponding path program 1 times [2024-11-08 22:09:56,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:09:56,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847881269] [2024-11-08 22:09:56,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:09:56,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:09:56,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:56,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:09:56,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:56,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:09:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:56,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:09:56,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:56,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:09:56,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:56,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:09:56,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:56,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:09:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:56,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:09:56,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:56,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:09:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:56,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:09:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:56,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:09:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:56,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:09:56,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:56,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:09:56,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:56,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 22:09:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:56,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:09:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:56,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 22:09:56,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:56,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:09:56,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:56,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 22:09:56,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:56,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 22:09:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:56,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 22:09:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:56,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 22:09:56,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:56,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 22:09:56,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:56,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 22:09:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:56,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 22:09:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:56,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 22:09:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:56,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 22:09:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:56,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 22:09:56,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:56,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 22:09:56,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:09:56,870 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 22:09:56,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:09:56,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847881269] [2024-11-08 22:09:56,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847881269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:09:56,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:09:56,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 22:09:56,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990171303] [2024-11-08 22:09:56,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:09:56,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 22:09:56,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:09:56,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 22:09:56,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 22:09:56,873 INFO L87 Difference]: Start difference. First operand 300 states and 469 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-08 22:09:56,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:09:56,924 INFO L93 Difference]: Finished difference Result 589 states and 927 transitions. [2024-11-08 22:09:56,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 22:09:56,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-08 22:09:56,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:09:56,930 INFO L225 Difference]: With dead ends: 589 [2024-11-08 22:09:56,930 INFO L226 Difference]: Without dead ends: 400 [2024-11-08 22:09:56,931 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 22:09:56,932 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 138 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 22:09:56,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 330 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 22:09:56,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-11-08 22:09:56,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 398. [2024-11-08 22:09:56,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 285 states have (on average 1.4140350877192982) internal successors, (403), 285 states have internal predecessors, (403), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-08 22:09:56,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 619 transitions. [2024-11-08 22:09:56,964 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 619 transitions. Word has length 174 [2024-11-08 22:09:56,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:09:56,964 INFO L471 AbstractCegarLoop]: Abstraction has 398 states and 619 transitions. [2024-11-08 22:09:56,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-08 22:09:56,965 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 619 transitions. [2024-11-08 22:09:56,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-08 22:09:56,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:09:56,966 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 22:09:56,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 22:09:56,967 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:09:56,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:09:56,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1225399612, now seen corresponding path program 1 times [2024-11-08 22:09:56,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:09:56,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362819968] [2024-11-08 22:09:56,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:09:56,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:09:57,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:05,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:10:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:05,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:10:05,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:05,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:10:05,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:05,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:10:05,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:05,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:10:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:05,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:10:05,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:05,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:10:05,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:05,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:10:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:05,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:10:05,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:05,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:10:05,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:05,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:10:05,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:05,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:10:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:05,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 22:10:05,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:05,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:10:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:05,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 22:10:05,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:05,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:10:05,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:05,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 22:10:05,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:05,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 22:10:05,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:05,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 22:10:05,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:05,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 22:10:05,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:05,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 22:10:05,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:05,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 22:10:05,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:05,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 22:10:05,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:05,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 22:10:05,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:05,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 22:10:05,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:05,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 22:10:05,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:05,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 22:10:05,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:05,601 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 22:10:05,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:10:05,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362819968] [2024-11-08 22:10:05,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362819968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:10:05,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:10:05,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-08 22:10:05,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123405304] [2024-11-08 22:10:05,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:10:05,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-08 22:10:05,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:10:05,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-08 22:10:05,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-08 22:10:05,604 INFO L87 Difference]: Start difference. First operand 398 states and 619 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 22:10:08,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:10:08,672 INFO L93 Difference]: Finished difference Result 463 states and 706 transitions. [2024-11-08 22:10:08,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 22:10:08,673 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 22:10:08,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:10:08,680 INFO L225 Difference]: With dead ends: 463 [2024-11-08 22:10:08,680 INFO L226 Difference]: Without dead ends: 461 [2024-11-08 22:10:08,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=188, Invalid=568, Unknown=0, NotChecked=0, Total=756 [2024-11-08 22:10:08,682 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 508 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 22:10:08,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 1049 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 22:10:08,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-11-08 22:10:08,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 399. [2024-11-08 22:10:08,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 286 states have (on average 1.4125874125874125) internal successors, (404), 286 states have internal predecessors, (404), 108 states have call successors, (108), 4 states have call predecessors, (108), 4 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-08 22:10:08,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 620 transitions. [2024-11-08 22:10:08,724 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 620 transitions. Word has length 175 [2024-11-08 22:10:08,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:10:08,725 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 620 transitions. [2024-11-08 22:10:08,725 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 22:10:08,725 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 620 transitions. [2024-11-08 22:10:08,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-08 22:10:08,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:10:08,727 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 22:10:08,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 22:10:08,728 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:10:08,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:10:08,728 INFO L85 PathProgramCache]: Analyzing trace with hash 787655146, now seen corresponding path program 1 times [2024-11-08 22:10:08,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:10:08,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58607624] [2024-11-08 22:10:08,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:10:08,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:10:08,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:08,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:10:08,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:08,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:10:08,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:08,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:10:08,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:08,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:10:08,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:08,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:10:08,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:08,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:10:08,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:08,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:10:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:08,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:10:08,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:08,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:10:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:08,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:10:08,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:08,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:10:08,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:08,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:10:08,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:08,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 22:10:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:08,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:10:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:08,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 22:10:08,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:08,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:10:08,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:08,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 22:10:08,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:08,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 22:10:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:08,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 22:10:08,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:08,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 22:10:08,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:08,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 22:10:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:08,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 22:10:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:08,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 22:10:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:08,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 22:10:08,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:08,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 22:10:08,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:08,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 22:10:08,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:08,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 22:10:08,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:08,950 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 22:10:08,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:10:08,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58607624] [2024-11-08 22:10:08,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58607624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:10:08,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:10:08,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 22:10:08,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233091436] [2024-11-08 22:10:08,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:10:08,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 22:10:08,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:10:08,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 22:10:08,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 22:10:08,952 INFO L87 Difference]: Start difference. First operand 399 states and 620 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 22:10:09,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:10:09,014 INFO L93 Difference]: Finished difference Result 716 states and 1108 transitions. [2024-11-08 22:10:09,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 22:10:09,014 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 22:10:09,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:10:09,017 INFO L225 Difference]: With dead ends: 716 [2024-11-08 22:10:09,017 INFO L226 Difference]: Without dead ends: 429 [2024-11-08 22:10:09,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 22:10:09,019 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 66 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 22:10:09,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 298 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 22:10:09,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-11-08 22:10:09,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 411. [2024-11-08 22:10:09,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 295 states have (on average 1.3864406779661016) internal successors, (409), 295 states have internal predecessors, (409), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-08 22:10:09,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 625 transitions. [2024-11-08 22:10:09,044 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 625 transitions. Word has length 175 [2024-11-08 22:10:09,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:10:09,045 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 625 transitions. [2024-11-08 22:10:09,045 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 22:10:09,045 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 625 transitions. [2024-11-08 22:10:09,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-08 22:10:09,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:10:09,047 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 22:10:09,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 22:10:09,048 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:10:09,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:10:09,048 INFO L85 PathProgramCache]: Analyzing trace with hash -21691480, now seen corresponding path program 1 times [2024-11-08 22:10:09,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:10:09,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735040352] [2024-11-08 22:10:09,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:10:09,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:10:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:12,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:10:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:12,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:10:12,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:12,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:10:12,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:12,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:10:12,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:12,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:10:12,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:12,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:10:12,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:12,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:10:12,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:12,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:10:12,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:12,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:10:12,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:12,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:10:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:12,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:10:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:12,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:10:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:12,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 22:10:12,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:12,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:10:12,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:12,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 22:10:12,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:12,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:10:12,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:12,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 22:10:12,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:12,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 22:10:12,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:12,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 22:10:12,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:12,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 22:10:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:12,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 22:10:12,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:12,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 22:10:12,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:12,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 22:10:12,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:12,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 22:10:12,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:12,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 22:10:12,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:12,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 22:10:12,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:12,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 22:10:12,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:12,172 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 22:10:12,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:10:12,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735040352] [2024-11-08 22:10:12,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735040352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:10:12,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:10:12,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-08 22:10:12,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482196165] [2024-11-08 22:10:12,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:10:12,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-08 22:10:12,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:10:12,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-08 22:10:12,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-11-08 22:10:12,174 INFO L87 Difference]: Start difference. First operand 411 states and 625 transitions. Second operand has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-08 22:10:13,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:10:13,712 INFO L93 Difference]: Finished difference Result 482 states and 718 transitions. [2024-11-08 22:10:13,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-08 22:10:13,712 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 175 [2024-11-08 22:10:13,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:10:13,715 INFO L225 Difference]: With dead ends: 482 [2024-11-08 22:10:13,715 INFO L226 Difference]: Without dead ends: 480 [2024-11-08 22:10:13,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=325, Invalid=935, Unknown=0, NotChecked=0, Total=1260 [2024-11-08 22:10:13,717 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 529 mSDsluCounter, 1009 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 22:10:13,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 1128 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 781 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 22:10:13,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2024-11-08 22:10:13,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 411. [2024-11-08 22:10:13,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 295 states have (on average 1.3864406779661016) internal successors, (409), 295 states have internal predecessors, (409), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-08 22:10:13,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 625 transitions. [2024-11-08 22:10:13,741 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 625 transitions. Word has length 175 [2024-11-08 22:10:13,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:10:13,742 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 625 transitions. [2024-11-08 22:10:13,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-08 22:10:13,742 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 625 transitions. [2024-11-08 22:10:13,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-08 22:10:13,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:10:13,744 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 22:10:13,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 22:10:13,744 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:10:13,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:10:13,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1110039550, now seen corresponding path program 1 times [2024-11-08 22:10:13,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:10:13,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748716617] [2024-11-08 22:10:13,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:10:13,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:10:13,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:18,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:10:18,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:18,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:10:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:18,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:10:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:18,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:10:18,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:18,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:10:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:18,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:10:18,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:18,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:10:18,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:18,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:10:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:18,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:10:18,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:18,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:10:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:18,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:10:18,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:18,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:10:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:18,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 22:10:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:18,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:10:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:18,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 22:10:18,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:18,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:10:18,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:18,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 22:10:18,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:18,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 22:10:18,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:18,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 22:10:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:18,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 22:10:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:18,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 22:10:18,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:18,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 22:10:18,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:18,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 22:10:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:18,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 22:10:18,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:18,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 22:10:18,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:18,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 22:10:18,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:18,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 22:10:18,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:18,880 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 22:10:18,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:10:18,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748716617] [2024-11-08 22:10:18,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748716617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:10:18,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:10:18,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-08 22:10:18,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665117154] [2024-11-08 22:10:18,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:10:18,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-08 22:10:18,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:10:18,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-08 22:10:18,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2024-11-08 22:10:18,882 INFO L87 Difference]: Start difference. First operand 411 states and 625 transitions. Second operand has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 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 22:10:22,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:10:22,790 INFO L93 Difference]: Finished difference Result 507 states and 752 transitions. [2024-11-08 22:10:22,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-08 22:10:22,790 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 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 22:10:22,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:10:22,794 INFO L225 Difference]: With dead ends: 507 [2024-11-08 22:10:22,794 INFO L226 Difference]: Without dead ends: 505 [2024-11-08 22:10:22,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=322, Invalid=868, Unknown=0, NotChecked=0, Total=1190 [2024-11-08 22:10:22,795 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 657 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 22:10:22,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 910 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 22:10:22,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-11-08 22:10:22,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 430. [2024-11-08 22:10:22,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 314 states have (on average 1.39171974522293) internal successors, (437), 314 states have internal predecessors, (437), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-08 22:10:22,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 653 transitions. [2024-11-08 22:10:22,825 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 653 transitions. Word has length 175 [2024-11-08 22:10:22,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:10:22,825 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 653 transitions. [2024-11-08 22:10:22,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 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 22:10:22,826 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 653 transitions. [2024-11-08 22:10:22,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-08 22:10:22,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:10:22,828 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 22:10:22,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 22:10:22,828 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:10:22,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:10:22,829 INFO L85 PathProgramCache]: Analyzing trace with hash -851874112, now seen corresponding path program 1 times [2024-11-08 22:10:22,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:10:22,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069537442] [2024-11-08 22:10:22,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:10:22,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:10:22,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:28,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:10:28,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:28,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:10:28,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:28,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:10:28,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:28,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:10:28,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:28,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:10:28,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:28,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:10:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:28,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:10:28,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:28,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:10:28,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:28,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:10:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:28,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:10:28,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:28,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:10:28,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:28,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:10:28,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:28,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 22:10:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:28,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:10:28,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:28,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 22:10:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:28,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:10:28,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:28,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 22:10:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:28,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 22:10:28,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:28,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 22:10:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:28,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 22:10:28,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:28,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 22:10:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:28,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 22:10:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:28,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 22:10:28,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:28,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 22:10:28,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:28,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 22:10:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:28,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 22:10:28,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:28,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 22:10:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:28,893 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 22:10:28,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:10:28,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069537442] [2024-11-08 22:10:28,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069537442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:10:28,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:10:28,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-08 22:10:28,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869987434] [2024-11-08 22:10:28,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:10:28,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-08 22:10:28,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:10:28,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-08 22:10:28,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-08 22:10:28,895 INFO L87 Difference]: Start difference. First operand 430 states and 653 transitions. Second operand has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 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 22:10:35,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:10:35,623 INFO L93 Difference]: Finished difference Result 501 states and 746 transitions. [2024-11-08 22:10:35,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-08 22:10:35,624 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 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 22:10:35,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:10:35,628 INFO L225 Difference]: With dead ends: 501 [2024-11-08 22:10:35,628 INFO L226 Difference]: Without dead ends: 499 [2024-11-08 22:10:35,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=322, Invalid=800, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 22:10:35,629 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 460 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-08 22:10:35,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 993 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-08 22:10:35,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2024-11-08 22:10:35,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 430. [2024-11-08 22:10:35,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 314 states have (on average 1.39171974522293) internal successors, (437), 314 states have internal predecessors, (437), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-08 22:10:35,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 653 transitions. [2024-11-08 22:10:35,657 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 653 transitions. Word has length 175 [2024-11-08 22:10:35,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:10:35,657 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 653 transitions. [2024-11-08 22:10:35,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 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 22:10:35,658 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 653 transitions. [2024-11-08 22:10:35,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-08 22:10:35,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:10:35,659 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 22:10:35,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 22:10:35,660 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:10:35,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:10:35,660 INFO L85 PathProgramCache]: Analyzing trace with hash 699854033, now seen corresponding path program 1 times [2024-11-08 22:10:35,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:10:35,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921324984] [2024-11-08 22:10:35,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:10:35,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:10:35,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:47,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 22:10:47,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:47,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 22:10:47,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:47,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 22:10:47,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:47,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 22:10:47,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:47,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 22:10:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:47,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 22:10:47,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:47,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 22:10:47,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:47,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 22:10:47,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:47,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 22:10:47,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:47,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 22:10:47,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:47,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 22:10:47,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:47,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 22:10:47,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:47,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 22:10:47,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:47,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 22:10:47,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:47,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 22:10:47,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:47,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 22:10:47,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:47,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 22:10:47,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:47,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 22:10:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:47,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 22:10:47,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:47,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 22:10:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:47,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 22:10:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:47,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 22:10:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:47,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 22:10:47,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:47,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 22:10:47,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:47,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 22:10:47,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:47,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 22:10:47,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:47,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 22:10:47,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:10:47,686 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 22:10:47,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 22:10:47,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921324984] [2024-11-08 22:10:47,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921324984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 22:10:47,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 22:10:47,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-08 22:10:47,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816380218] [2024-11-08 22:10:47,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 22:10:47,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-08 22:10:47,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 22:10:47,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-08 22:10:47,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2024-11-08 22:10:47,690 INFO L87 Difference]: Start difference. First operand 430 states and 653 transitions. Second operand has 20 states, 20 states have (on average 2.2) internal successors, (44), 20 states have internal predecessors, (44), 3 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-08 22:10:59,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 22:10:59,417 INFO L93 Difference]: Finished difference Result 501 states and 745 transitions. [2024-11-08 22:10:59,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-08 22:10:59,418 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.2) internal successors, (44), 20 states have internal predecessors, (44), 3 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 176 [2024-11-08 22:10:59,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 22:10:59,421 INFO L225 Difference]: With dead ends: 501 [2024-11-08 22:10:59,422 INFO L226 Difference]: Without dead ends: 499 [2024-11-08 22:10:59,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=467, Invalid=1425, Unknown=0, NotChecked=0, Total=1892 [2024-11-08 22:10:59,423 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 755 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 1113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-08 22:10:59,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 1147 Invalid, 1113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 974 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-08 22:10:59,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2024-11-08 22:10:59,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 427. [2024-11-08 22:10:59,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 311 states have (on average 1.392282958199357) internal successors, (433), 311 states have internal predecessors, (433), 108 states have call successors, (108), 7 states have call predecessors, (108), 7 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-08 22:10:59,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 649 transitions. [2024-11-08 22:10:59,457 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 649 transitions. Word has length 176 [2024-11-08 22:10:59,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 22:10:59,457 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 649 transitions. [2024-11-08 22:10:59,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.2) internal successors, (44), 20 states have internal predecessors, (44), 3 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-08 22:10:59,458 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 649 transitions. [2024-11-08 22:10:59,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-08 22:10:59,459 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 22:10:59,459 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 22:10:59,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 22:10:59,460 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 22:10:59,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:10:59,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1378060533, now seen corresponding path program 1 times [2024-11-08 22:10:59,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 22:10:59,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276539898] [2024-11-08 22:10:59,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 22:10:59,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:10:59,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat