./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-71.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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_variablewrapping_wrapper-s_file-71.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 47e8ddd221104cc805d3d68561579c1d0ceb215c71efab48659b0323dc3025dc --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 01:10:23,820 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 01:10:23,945 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 01:10:23,954 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 01:10:23,960 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 01:10:23,994 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 01:10:23,995 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 01:10:23,995 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 01:10:23,995 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 01:10:23,996 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 01:10:24,004 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 01:10:24,004 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 01:10:24,005 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 01:10:24,005 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 01:10:24,005 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 01:10:24,006 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 01:10:24,006 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 01:10:24,006 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 01:10:24,006 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 01:10:24,007 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 01:10:24,007 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 01:10:24,013 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 01:10:24,014 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 01:10:24,014 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 01:10:24,014 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 01:10:24,014 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 01:10:24,015 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 01:10:24,015 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 01:10:24,015 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 01:10:24,016 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 01:10:24,019 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 01:10:24,019 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 01:10:24,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:10:24,022 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 01:10:24,022 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 01:10:24,023 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 01:10:24,023 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 01:10:24,023 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 01:10:24,023 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 01:10:24,023 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 01:10:24,023 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 01:10:24,024 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 01:10:24,024 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47e8ddd221104cc805d3d68561579c1d0ceb215c71efab48659b0323dc3025dc [2024-11-19 01:10:24,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 01:10:24,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 01:10:24,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 01:10:24,494 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 01:10:24,495 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 01:10:24,496 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-71.i [2024-11-19 01:10:26,177 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 01:10:26,427 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 01:10:26,432 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-71.i [2024-11-19 01:10:26,458 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0788ec6ad/e9325ac4135244698d44248ffd81fca2/FLAGc90cd4f40 [2024-11-19 01:10:26,478 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0788ec6ad/e9325ac4135244698d44248ffd81fca2 [2024-11-19 01:10:26,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 01:10:26,484 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 01:10:26,485 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 01:10:26,488 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 01:10:26,493 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 01:10:26,494 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:10:26" (1/1) ... [2024-11-19 01:10:26,497 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@522ffa98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:10:26, skipping insertion in model container [2024-11-19 01:10:26,498 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:10:26" (1/1) ... [2024-11-19 01:10:26,568 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 01:10:26,812 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_variablewrapping_wrapper-s_file-71.i[916,929] [2024-11-19 01:10:26,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:10:26,928 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 01:10:26,943 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_variablewrapping_wrapper-s_file-71.i[916,929] [2024-11-19 01:10:27,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:10:27,067 INFO L204 MainTranslator]: Completed translation [2024-11-19 01:10:27,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:10:27 WrapperNode [2024-11-19 01:10:27,071 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 01:10:27,075 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 01:10:27,075 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 01:10:27,075 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 01:10:27,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:10:27" (1/1) ... [2024-11-19 01:10:27,110 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:10:27" (1/1) ... [2024-11-19 01:10:27,188 INFO L138 Inliner]: procedures = 27, calls = 169, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 488 [2024-11-19 01:10:27,189 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 01:10:27,189 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 01:10:27,189 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 01:10:27,189 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 01:10:27,208 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:10:27" (1/1) ... [2024-11-19 01:10:27,208 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:10:27" (1/1) ... [2024-11-19 01:10:27,223 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:10:27" (1/1) ... [2024-11-19 01:10:27,272 INFO L175 MemorySlicer]: Split 139 memory accesses to 2 slices as follows [2, 137]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 33 writes are split as follows [0, 33]. [2024-11-19 01:10:27,276 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:10:27" (1/1) ... [2024-11-19 01:10:27,277 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:10:27" (1/1) ... [2024-11-19 01:10:27,318 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:10:27" (1/1) ... [2024-11-19 01:10:27,328 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:10:27" (1/1) ... [2024-11-19 01:10:27,337 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:10:27" (1/1) ... [2024-11-19 01:10:27,347 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:10:27" (1/1) ... [2024-11-19 01:10:27,358 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 01:10:27,360 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 01:10:27,360 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 01:10:27,360 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 01:10:27,361 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:10:27" (1/1) ... [2024-11-19 01:10:27,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:10:27,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:10:27,433 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) [2024-11-19 01:10:27,452 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 [2024-11-19 01:10:27,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 01:10:27,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 01:10:27,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 01:10:27,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 01:10:27,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 01:10:27,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 01:10:27,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 01:10:27,551 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 01:10:27,552 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 01:10:27,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 01:10:27,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 01:10:27,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 01:10:27,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 01:10:27,802 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 01:10:27,808 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 01:10:28,314 INFO L? ?]: Removed 126 outVars from TransFormulas that were not future-live. [2024-11-19 01:10:28,314 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 01:10:28,328 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 01:10:28,330 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 01:10:28,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:10:28 BoogieIcfgContainer [2024-11-19 01:10:28,331 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 01:10:28,332 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 01:10:28,333 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 01:10:28,336 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 01:10:28,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:10:26" (1/3) ... [2024-11-19 01:10:28,337 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e63a61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:10:28, skipping insertion in model container [2024-11-19 01:10:28,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:10:27" (2/3) ... [2024-11-19 01:10:28,338 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e63a61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:10:28, skipping insertion in model container [2024-11-19 01:10:28,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:10:28" (3/3) ... [2024-11-19 01:10:28,340 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-71.i [2024-11-19 01:10:28,352 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 01:10:28,352 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 01:10:28,430 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 01:10:28,436 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;@5dea277b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 01:10:28,436 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 01:10:28,439 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 83 states have (on average 1.3855421686746987) internal successors, (115), 84 states have internal predecessors, (115), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 01:10:28,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 01:10:28,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:28,453 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:28,454 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:28,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:28,458 INFO L85 PathProgramCache]: Analyzing trace with hash -312506901, now seen corresponding path program 1 times [2024-11-19 01:10:28,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:28,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216762439] [2024-11-19 01:10:28,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:28,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:28,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:28,745 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-19 01:10:28,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:28,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216762439] [2024-11-19 01:10:28,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216762439] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:10:28,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533177349] [2024-11-19 01:10:28,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:28,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:10:28,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:10:28,748 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:10:28,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 01:10:28,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:28,896 INFO L255 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 01:10:28,902 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:10:28,920 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-19 01:10:28,921 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:10:28,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533177349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:28,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:10:28,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 01:10:28,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635836385] [2024-11-19 01:10:28,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:28,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 01:10:28,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:28,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 01:10:28,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 01:10:28,944 INFO L87 Difference]: Start difference. First operand has 105 states, 83 states have (on average 1.3855421686746987) internal successors, (115), 84 states have internal predecessors, (115), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:10:28,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:28,968 INFO L93 Difference]: Finished difference Result 203 states and 319 transitions. [2024-11-19 01:10:28,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 01:10:28,970 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 144 [2024-11-19 01:10:28,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:28,975 INFO L225 Difference]: With dead ends: 203 [2024-11-19 01:10:28,975 INFO L226 Difference]: Without dead ends: 101 [2024-11-19 01:10:28,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 01:10:28,980 INFO L432 NwaCegarLoop]: 144 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, 144 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 [2024-11-19 01:10:28,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:10:28,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-19 01:10:29,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-19 01:10:29,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 80 states have (on average 1.325) internal successors, (106), 80 states have internal predecessors, (106), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 01:10:29,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 144 transitions. [2024-11-19 01:10:29,012 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 144 transitions. Word has length 144 [2024-11-19 01:10:29,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:29,012 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 144 transitions. [2024-11-19 01:10:29,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:10:29,013 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 144 transitions. [2024-11-19 01:10:29,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 01:10:29,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:29,015 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:29,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 01:10:29,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-19 01:10:29,216 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:29,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:29,218 INFO L85 PathProgramCache]: Analyzing trace with hash 693008529, now seen corresponding path program 1 times [2024-11-19 01:10:29,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:29,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962558164] [2024-11-19 01:10:29,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:29,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:29,704 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:10:29,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:29,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962558164] [2024-11-19 01:10:29,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962558164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:29,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:29,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:10:29,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615072615] [2024-11-19 01:10:29,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:29,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:10:29,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:29,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:10:29,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:10:29,711 INFO L87 Difference]: Start difference. First operand 101 states and 144 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:10:29,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:29,747 INFO L93 Difference]: Finished difference Result 202 states and 289 transitions. [2024-11-19 01:10:29,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:10:29,749 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 144 [2024-11-19 01:10:29,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:29,753 INFO L225 Difference]: With dead ends: 202 [2024-11-19 01:10:29,753 INFO L226 Difference]: Without dead ends: 104 [2024-11-19 01:10:29,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:10:29,755 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 1 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:29,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 412 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:10:29,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-19 01:10:29,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 103. [2024-11-19 01:10:29,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 82 states have (on average 1.3170731707317074) internal successors, (108), 82 states have internal predecessors, (108), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 01:10:29,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 146 transitions. [2024-11-19 01:10:29,766 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 146 transitions. Word has length 144 [2024-11-19 01:10:29,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:29,768 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 146 transitions. [2024-11-19 01:10:29,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:10:29,769 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 146 transitions. [2024-11-19 01:10:29,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 01:10:29,771 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:29,771 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:29,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 01:10:29,771 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:29,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:29,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1826951405, now seen corresponding path program 1 times [2024-11-19 01:10:29,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:29,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671408871] [2024-11-19 01:10:29,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:29,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:29,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:30,047 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:10:30,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:30,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671408871] [2024-11-19 01:10:30,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671408871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:30,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:30,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:10:30,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024461368] [2024-11-19 01:10:30,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:30,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:10:30,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:30,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:10:30,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:10:30,051 INFO L87 Difference]: Start difference. First operand 103 states and 146 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:10:30,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:30,090 INFO L93 Difference]: Finished difference Result 206 states and 293 transitions. [2024-11-19 01:10:30,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:10:30,091 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 144 [2024-11-19 01:10:30,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:30,093 INFO L225 Difference]: With dead ends: 206 [2024-11-19 01:10:30,096 INFO L226 Difference]: Without dead ends: 106 [2024-11-19 01:10:30,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:10:30,097 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 1 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:30,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 415 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:10:30,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-19 01:10:30,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2024-11-19 01:10:30,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 84 states have (on average 1.3095238095238095) internal successors, (110), 84 states have internal predecessors, (110), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-19 01:10:30,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 148 transitions. [2024-11-19 01:10:30,114 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 148 transitions. Word has length 144 [2024-11-19 01:10:30,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:30,115 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 148 transitions. [2024-11-19 01:10:30,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:10:30,115 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 148 transitions. [2024-11-19 01:10:30,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 01:10:30,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:30,117 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:30,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 01:10:30,120 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:30,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:30,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1825104363, now seen corresponding path program 1 times [2024-11-19 01:10:30,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:30,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77704989] [2024-11-19 01:10:30,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:30,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:30,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:30,857 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:10:30,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:30,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77704989] [2024-11-19 01:10:30,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77704989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:30,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:30,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:10:30,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134554902] [2024-11-19 01:10:30,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:30,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:10:30,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:30,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:10:30,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:10:30,862 INFO L87 Difference]: Start difference. First operand 105 states and 148 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:10:31,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:31,276 INFO L93 Difference]: Finished difference Result 290 states and 408 transitions. [2024-11-19 01:10:31,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:10:31,277 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 144 [2024-11-19 01:10:31,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:31,279 INFO L225 Difference]: With dead ends: 290 [2024-11-19 01:10:31,280 INFO L226 Difference]: Without dead ends: 188 [2024-11-19 01:10:31,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:10:31,283 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 107 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:31,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 537 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:10:31,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-19 01:10:31,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 176. [2024-11-19 01:10:31,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 144 states have (on average 1.3125) internal successors, (189), 145 states have internal predecessors, (189), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-19 01:10:31,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 247 transitions. [2024-11-19 01:10:31,302 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 247 transitions. Word has length 144 [2024-11-19 01:10:31,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:31,303 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 247 transitions. [2024-11-19 01:10:31,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:10:31,303 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 247 transitions. [2024-11-19 01:10:31,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-19 01:10:31,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:31,305 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:31,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 01:10:31,305 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:31,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:31,309 INFO L85 PathProgramCache]: Analyzing trace with hash -872708680, now seen corresponding path program 1 times [2024-11-19 01:10:31,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:31,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924479633] [2024-11-19 01:10:31,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:31,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:31,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:32,173 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:10:32,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:32,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924479633] [2024-11-19 01:10:32,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924479633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:32,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:32,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:10:32,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433572621] [2024-11-19 01:10:32,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:32,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:10:32,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:32,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:10:32,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:10:32,176 INFO L87 Difference]: Start difference. First operand 176 states and 247 transitions. Second operand has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:10:32,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:32,704 INFO L93 Difference]: Finished difference Result 435 states and 613 transitions. [2024-11-19 01:10:32,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 01:10:32,705 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 145 [2024-11-19 01:10:32,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:32,707 INFO L225 Difference]: With dead ends: 435 [2024-11-19 01:10:32,708 INFO L226 Difference]: Without dead ends: 262 [2024-11-19 01:10:32,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:10:32,715 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 102 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:32,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 669 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:10:32,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-11-19 01:10:32,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 185. [2024-11-19 01:10:32,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 153 states have (on average 1.326797385620915) internal successors, (203), 154 states have internal predecessors, (203), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-19 01:10:32,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 261 transitions. [2024-11-19 01:10:32,734 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 261 transitions. Word has length 145 [2024-11-19 01:10:32,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:32,735 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 261 transitions. [2024-11-19 01:10:32,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:10:32,735 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 261 transitions. [2024-11-19 01:10:32,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-19 01:10:32,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:32,736 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:32,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 01:10:32,736 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:32,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:32,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1111641874, now seen corresponding path program 1 times [2024-11-19 01:10:32,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:32,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261939506] [2024-11-19 01:10:32,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:32,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:33,851 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:10:33,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:33,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261939506] [2024-11-19 01:10:33,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261939506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:33,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:33,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:10:33,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505748435] [2024-11-19 01:10:33,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:33,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:10:33,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:33,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:10:33,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:10:33,853 INFO L87 Difference]: Start difference. First operand 185 states and 261 transitions. Second operand has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:10:34,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:34,461 INFO L93 Difference]: Finished difference Result 425 states and 595 transitions. [2024-11-19 01:10:34,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:10:34,462 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 146 [2024-11-19 01:10:34,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:34,463 INFO L225 Difference]: With dead ends: 425 [2024-11-19 01:10:34,463 INFO L226 Difference]: Without dead ends: 243 [2024-11-19 01:10:34,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-19 01:10:34,465 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 73 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:34,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 940 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 01:10:34,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2024-11-19 01:10:34,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 240. [2024-11-19 01:10:34,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 201 states have (on average 1.3134328358208955) internal successors, (264), 203 states have internal predecessors, (264), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-19 01:10:34,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 334 transitions. [2024-11-19 01:10:34,474 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 334 transitions. Word has length 146 [2024-11-19 01:10:34,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:34,475 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 334 transitions. [2024-11-19 01:10:34,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:10:34,475 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 334 transitions. [2024-11-19 01:10:34,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-19 01:10:34,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:34,476 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:34,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 01:10:34,477 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:34,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:34,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1492049167, now seen corresponding path program 1 times [2024-11-19 01:10:34,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:34,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742773639] [2024-11-19 01:10:34,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:34,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:34,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:35,197 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:10:35,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:35,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742773639] [2024-11-19 01:10:35,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742773639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:35,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:35,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:10:35,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143542214] [2024-11-19 01:10:35,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:35,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:10:35,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:35,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:10:35,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:10:35,199 INFO L87 Difference]: Start difference. First operand 240 states and 334 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:10:35,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:35,363 INFO L93 Difference]: Finished difference Result 554 states and 770 transitions. [2024-11-19 01:10:35,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:10:35,364 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 146 [2024-11-19 01:10:35,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:35,365 INFO L225 Difference]: With dead ends: 554 [2024-11-19 01:10:35,365 INFO L226 Difference]: Without dead ends: 317 [2024-11-19 01:10:35,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:10:35,366 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 98 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:35,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 361 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:10:35,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-19 01:10:35,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 250. [2024-11-19 01:10:35,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 211 states have (on average 1.3127962085308056) internal successors, (277), 213 states have internal predecessors, (277), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-19 01:10:35,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 347 transitions. [2024-11-19 01:10:35,376 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 347 transitions. Word has length 146 [2024-11-19 01:10:35,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:35,376 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 347 transitions. [2024-11-19 01:10:35,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:10:35,376 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 347 transitions. [2024-11-19 01:10:35,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 01:10:35,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:35,377 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:35,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 01:10:35,378 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:35,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:35,378 INFO L85 PathProgramCache]: Analyzing trace with hash -687424559, now seen corresponding path program 1 times [2024-11-19 01:10:35,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:35,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376453311] [2024-11-19 01:10:35,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:35,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:35,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:36,156 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:10:36,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:36,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376453311] [2024-11-19 01:10:36,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376453311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:36,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:36,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 01:10:36,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484976480] [2024-11-19 01:10:36,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:36,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:10:36,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:36,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:10:36,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:10:36,159 INFO L87 Difference]: Start difference. First operand 250 states and 347 transitions. Second operand has 10 states, 8 states have (on average 6.875) internal successors, (55), 10 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 01:10:36,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:36,752 INFO L93 Difference]: Finished difference Result 629 states and 864 transitions. [2024-11-19 01:10:36,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 01:10:36,753 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.875) internal successors, (55), 10 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 147 [2024-11-19 01:10:36,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:36,756 INFO L225 Difference]: With dead ends: 629 [2024-11-19 01:10:36,756 INFO L226 Difference]: Without dead ends: 382 [2024-11-19 01:10:36,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-19 01:10:36,761 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 215 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:36,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 659 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 01:10:36,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-11-19 01:10:36,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 352. [2024-11-19 01:10:36,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 295 states have (on average 1.2949152542372881) internal successors, (382), 299 states have internal predecessors, (382), 51 states have call successors, (51), 5 states have call predecessors, (51), 5 states have return successors, (51), 47 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-19 01:10:36,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 484 transitions. [2024-11-19 01:10:36,777 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 484 transitions. Word has length 147 [2024-11-19 01:10:36,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:36,777 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 484 transitions. [2024-11-19 01:10:36,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.875) internal successors, (55), 10 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 01:10:36,778 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 484 transitions. [2024-11-19 01:10:36,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 01:10:36,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:36,779 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:36,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 01:10:36,779 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:36,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:36,780 INFO L85 PathProgramCache]: Analyzing trace with hash -838220110, now seen corresponding path program 1 times [2024-11-19 01:10:36,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:36,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559617486] [2024-11-19 01:10:36,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:36,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:36,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:37,898 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:10:37,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:37,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559617486] [2024-11-19 01:10:37,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559617486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:37,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:37,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 01:10:37,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359568617] [2024-11-19 01:10:37,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:37,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 01:10:37,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:37,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 01:10:37,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-19 01:10:37,901 INFO L87 Difference]: Start difference. First operand 352 states and 484 transitions. Second operand has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 11 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 01:10:38,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:38,420 INFO L93 Difference]: Finished difference Result 815 states and 1114 transitions. [2024-11-19 01:10:38,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 01:10:38,420 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 11 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 147 [2024-11-19 01:10:38,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:38,422 INFO L225 Difference]: With dead ends: 815 [2024-11-19 01:10:38,423 INFO L226 Difference]: Without dead ends: 466 [2024-11-19 01:10:38,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2024-11-19 01:10:38,424 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 110 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:38,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 962 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:10:38,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-11-19 01:10:38,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 462. [2024-11-19 01:10:38,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 395 states have (on average 1.2911392405063291) internal successors, (510), 401 states have internal predecessors, (510), 59 states have call successors, (59), 7 states have call predecessors, (59), 7 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-19 01:10:38,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 628 transitions. [2024-11-19 01:10:38,446 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 628 transitions. Word has length 147 [2024-11-19 01:10:38,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:38,447 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 628 transitions. [2024-11-19 01:10:38,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 11 states have internal predecessors, (55), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 01:10:38,447 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 628 transitions. [2024-11-19 01:10:38,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 01:10:38,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:38,449 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:38,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 01:10:38,449 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:38,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:38,449 INFO L85 PathProgramCache]: Analyzing trace with hash -2118083788, now seen corresponding path program 1 times [2024-11-19 01:10:38,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:38,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738999958] [2024-11-19 01:10:38,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:38,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:38,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:40,100 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:10:40,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:40,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738999958] [2024-11-19 01:10:40,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738999958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:40,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:40,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-19 01:10:40,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641256803] [2024-11-19 01:10:40,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:40,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 01:10:40,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:40,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 01:10:40,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-19 01:10:40,102 INFO L87 Difference]: Start difference. First operand 462 states and 628 transitions. Second operand has 13 states, 9 states have (on average 6.111111111111111) internal successors, (55), 13 states have internal predecessors, (55), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-19 01:10:41,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:41,008 INFO L93 Difference]: Finished difference Result 1027 states and 1377 transitions. [2024-11-19 01:10:41,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 01:10:41,009 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 9 states have (on average 6.111111111111111) internal successors, (55), 13 states have internal predecessors, (55), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) Word has length 147 [2024-11-19 01:10:41,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:41,011 INFO L225 Difference]: With dead ends: 1027 [2024-11-19 01:10:41,011 INFO L226 Difference]: Without dead ends: 568 [2024-11-19 01:10:41,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-11-19 01:10:41,015 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 138 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:41,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 1147 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 01:10:41,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-11-19 01:10:41,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 489. [2024-11-19 01:10:41,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 417 states have (on average 1.2781774580335732) internal successors, (533), 424 states have internal predecessors, (533), 61 states have call successors, (61), 10 states have call predecessors, (61), 10 states have return successors, (61), 54 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-19 01:10:41,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 655 transitions. [2024-11-19 01:10:41,051 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 655 transitions. Word has length 147 [2024-11-19 01:10:41,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:41,051 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 655 transitions. [2024-11-19 01:10:41,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 9 states have (on average 6.111111111111111) internal successors, (55), 13 states have internal predecessors, (55), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-19 01:10:41,052 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 655 transitions. [2024-11-19 01:10:41,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 01:10:41,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:41,054 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:41,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 01:10:41,054 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:41,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:41,055 INFO L85 PathProgramCache]: Analyzing trace with hash -697671500, now seen corresponding path program 1 times [2024-11-19 01:10:41,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:41,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728217751] [2024-11-19 01:10:41,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:41,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:42,914 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:10:42,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:42,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728217751] [2024-11-19 01:10:42,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728217751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:42,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:42,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 01:10:42,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355348619] [2024-11-19 01:10:42,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:42,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 01:10:42,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:42,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 01:10:42,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:10:42,917 INFO L87 Difference]: Start difference. First operand 489 states and 655 transitions. Second operand has 12 states, 9 states have (on average 6.111111111111111) internal successors, (55), 12 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 01:10:44,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:44,156 INFO L93 Difference]: Finished difference Result 1063 states and 1413 transitions. [2024-11-19 01:10:44,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 01:10:44,157 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 6.111111111111111) internal successors, (55), 12 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 147 [2024-11-19 01:10:44,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:44,160 INFO L225 Difference]: With dead ends: 1063 [2024-11-19 01:10:44,160 INFO L226 Difference]: Without dead ends: 586 [2024-11-19 01:10:44,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-19 01:10:44,163 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 158 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:44,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 943 Invalid, 965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-19 01:10:44,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2024-11-19 01:10:44,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 488. [2024-11-19 01:10:44,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 417 states have (on average 1.2733812949640289) internal successors, (531), 423 states have internal predecessors, (531), 59 states have call successors, (59), 11 states have call predecessors, (59), 11 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-19 01:10:44,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 649 transitions. [2024-11-19 01:10:44,190 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 649 transitions. Word has length 147 [2024-11-19 01:10:44,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:44,190 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 649 transitions. [2024-11-19 01:10:44,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 6.111111111111111) internal successors, (55), 12 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 01:10:44,190 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 649 transitions. [2024-11-19 01:10:44,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 01:10:44,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:44,192 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:44,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 01:10:44,193 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:44,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:44,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1977535178, now seen corresponding path program 1 times [2024-11-19 01:10:44,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:44,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071401497] [2024-11-19 01:10:44,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:44,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:44,511 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:10:44,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:44,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071401497] [2024-11-19 01:10:44,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071401497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:44,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:44,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:10:44,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319559579] [2024-11-19 01:10:44,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:44,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:10:44,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:44,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:10:44,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:10:44,513 INFO L87 Difference]: Start difference. First operand 488 states and 649 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:10:44,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:44,964 INFO L93 Difference]: Finished difference Result 1057 states and 1404 transitions. [2024-11-19 01:10:44,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:10:44,965 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2024-11-19 01:10:44,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:44,967 INFO L225 Difference]: With dead ends: 1057 [2024-11-19 01:10:44,967 INFO L226 Difference]: Without dead ends: 572 [2024-11-19 01:10:44,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-19 01:10:44,969 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 104 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:44,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 1092 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:10:44,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-19 01:10:45,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 559. [2024-11-19 01:10:45,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 458 states have (on average 1.244541484716157) internal successors, (570), 465 states have internal predecessors, (570), 84 states have call successors, (84), 16 states have call predecessors, (84), 16 states have return successors, (84), 77 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-19 01:10:45,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 738 transitions. [2024-11-19 01:10:45,005 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 738 transitions. Word has length 147 [2024-11-19 01:10:45,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:45,005 INFO L471 AbstractCegarLoop]: Abstraction has 559 states and 738 transitions. [2024-11-19 01:10:45,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:10:45,005 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 738 transitions. [2024-11-19 01:10:45,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-19 01:10:45,007 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:45,007 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:45,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 01:10:45,007 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:45,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:45,008 INFO L85 PathProgramCache]: Analyzing trace with hash 697585728, now seen corresponding path program 1 times [2024-11-19 01:10:45,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:45,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675344596] [2024-11-19 01:10:45,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:45,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:45,217 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:10:45,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:45,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675344596] [2024-11-19 01:10:45,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675344596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:45,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:45,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:10:45,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479282894] [2024-11-19 01:10:45,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:45,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:10:45,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:45,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:10:45,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:10:45,218 INFO L87 Difference]: Start difference. First operand 559 states and 738 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:10:45,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:45,426 INFO L93 Difference]: Finished difference Result 1220 states and 1611 transitions. [2024-11-19 01:10:45,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:10:45,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2024-11-19 01:10:45,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:45,429 INFO L225 Difference]: With dead ends: 1220 [2024-11-19 01:10:45,429 INFO L226 Difference]: Without dead ends: 677 [2024-11-19 01:10:45,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:10:45,431 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 100 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:45,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 359 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:10:45,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2024-11-19 01:10:45,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 627. [2024-11-19 01:10:45,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 509 states have (on average 1.2357563850687623) internal successors, (629), 517 states have internal predecessors, (629), 98 states have call successors, (98), 19 states have call predecessors, (98), 19 states have return successors, (98), 90 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-19 01:10:45,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 825 transitions. [2024-11-19 01:10:45,473 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 825 transitions. Word has length 148 [2024-11-19 01:10:45,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:45,474 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 825 transitions. [2024-11-19 01:10:45,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:10:45,474 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 825 transitions. [2024-11-19 01:10:45,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-19 01:10:45,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:45,476 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:45,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 01:10:45,476 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:45,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:45,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1475214440, now seen corresponding path program 1 times [2024-11-19 01:10:45,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:45,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876657301] [2024-11-19 01:10:45,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:45,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:45,949 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:10:45,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:45,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876657301] [2024-11-19 01:10:45,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876657301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:45,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:45,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:10:45,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114499932] [2024-11-19 01:10:45,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:45,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:10:45,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:45,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:10:45,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:10:45,951 INFO L87 Difference]: Start difference. First operand 627 states and 825 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:10:46,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:46,291 INFO L93 Difference]: Finished difference Result 1241 states and 1633 transitions. [2024-11-19 01:10:46,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:10:46,292 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 148 [2024-11-19 01:10:46,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:46,295 INFO L225 Difference]: With dead ends: 1241 [2024-11-19 01:10:46,295 INFO L226 Difference]: Without dead ends: 642 [2024-11-19 01:10:46,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:10:46,296 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 90 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:46,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 414 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:10:46,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2024-11-19 01:10:46,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 588. [2024-11-19 01:10:46,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 477 states have (on average 1.2348008385744236) internal successors, (589), 484 states have internal predecessors, (589), 92 states have call successors, (92), 18 states have call predecessors, (92), 18 states have return successors, (92), 85 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-19 01:10:46,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 773 transitions. [2024-11-19 01:10:46,325 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 773 transitions. Word has length 148 [2024-11-19 01:10:46,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:46,325 INFO L471 AbstractCegarLoop]: Abstraction has 588 states and 773 transitions. [2024-11-19 01:10:46,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:10:46,325 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 773 transitions. [2024-11-19 01:10:46,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-19 01:10:46,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:46,327 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:46,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 01:10:46,327 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:46,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:46,327 INFO L85 PathProgramCache]: Analyzing trace with hash -113133462, now seen corresponding path program 1 times [2024-11-19 01:10:46,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:46,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156956006] [2024-11-19 01:10:46,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:46,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:46,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:46,741 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:10:46,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:46,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156956006] [2024-11-19 01:10:46,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156956006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:46,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:46,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:10:46,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488533296] [2024-11-19 01:10:46,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:46,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:10:46,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:46,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:10:46,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:10:46,742 INFO L87 Difference]: Start difference. First operand 588 states and 773 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:10:47,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:47,082 INFO L93 Difference]: Finished difference Result 1148 states and 1507 transitions. [2024-11-19 01:10:47,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:10:47,082 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 148 [2024-11-19 01:10:47,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:47,085 INFO L225 Difference]: With dead ends: 1148 [2024-11-19 01:10:47,085 INFO L226 Difference]: Without dead ends: 588 [2024-11-19 01:10:47,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:10:47,086 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 60 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:47,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 606 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:10:47,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2024-11-19 01:10:47,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 585. [2024-11-19 01:10:47,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 473 states have (on average 1.2283298097251585) internal successors, (581), 480 states have internal predecessors, (581), 92 states have call successors, (92), 19 states have call predecessors, (92), 19 states have return successors, (92), 85 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-19 01:10:47,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 765 transitions. [2024-11-19 01:10:47,112 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 765 transitions. Word has length 148 [2024-11-19 01:10:47,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:47,112 INFO L471 AbstractCegarLoop]: Abstraction has 585 states and 765 transitions. [2024-11-19 01:10:47,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:10:47,112 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 765 transitions. [2024-11-19 01:10:47,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-19 01:10:47,113 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:47,113 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:47,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 01:10:47,113 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:47,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:47,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1341434545, now seen corresponding path program 1 times [2024-11-19 01:10:47,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:47,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384611101] [2024-11-19 01:10:47,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:47,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:47,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:48,669 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:10:48,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:48,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384611101] [2024-11-19 01:10:48,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384611101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:48,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:48,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 01:10:48,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961677790] [2024-11-19 01:10:48,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:48,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:10:48,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:48,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:10:48,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:10:48,671 INFO L87 Difference]: Start difference. First operand 585 states and 765 transitions. Second operand has 9 states, 6 states have (on average 9.333333333333334) internal successors, (56), 9 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 01:10:49,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:49,183 INFO L93 Difference]: Finished difference Result 1136 states and 1487 transitions. [2024-11-19 01:10:49,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 01:10:49,183 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 6 states have (on average 9.333333333333334) internal successors, (56), 9 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 148 [2024-11-19 01:10:49,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:49,186 INFO L225 Difference]: With dead ends: 1136 [2024-11-19 01:10:49,186 INFO L226 Difference]: Without dead ends: 579 [2024-11-19 01:10:49,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-19 01:10:49,187 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 69 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:49,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 763 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:10:49,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-11-19 01:10:49,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 567. [2024-11-19 01:10:49,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 455 states have (on average 1.2263736263736265) internal successors, (558), 462 states have internal predecessors, (558), 92 states have call successors, (92), 19 states have call predecessors, (92), 19 states have return successors, (92), 85 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-19 01:10:49,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 742 transitions. [2024-11-19 01:10:49,214 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 742 transitions. Word has length 148 [2024-11-19 01:10:49,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:49,215 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 742 transitions. [2024-11-19 01:10:49,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 6 states have (on average 9.333333333333334) internal successors, (56), 9 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 01:10:49,215 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 742 transitions. [2024-11-19 01:10:49,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-19 01:10:49,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:49,216 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:49,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 01:10:49,216 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:49,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:49,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1371141893, now seen corresponding path program 1 times [2024-11-19 01:10:49,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:49,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046097585] [2024-11-19 01:10:49,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:49,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:49,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:50,511 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:10:50,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:50,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046097585] [2024-11-19 01:10:50,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046097585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:50,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:50,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-19 01:10:50,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791065200] [2024-11-19 01:10:50,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:50,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 01:10:50,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:50,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 01:10:50,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-11-19 01:10:50,514 INFO L87 Difference]: Start difference. First operand 567 states and 742 transitions. Second operand has 14 states, 12 states have (on average 4.666666666666667) internal successors, (56), 14 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 01:10:51,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:51,332 INFO L93 Difference]: Finished difference Result 1244 states and 1638 transitions. [2024-11-19 01:10:51,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 01:10:51,333 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 4.666666666666667) internal successors, (56), 14 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 148 [2024-11-19 01:10:51,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:51,336 INFO L225 Difference]: With dead ends: 1244 [2024-11-19 01:10:51,337 INFO L226 Difference]: Without dead ends: 705 [2024-11-19 01:10:51,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-11-19 01:10:51,342 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 83 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 1317 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:51,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 1317 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 01:10:51,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2024-11-19 01:10:51,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 701. [2024-11-19 01:10:51,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 575 states have (on average 1.2469565217391305) internal successors, (717), 584 states have internal predecessors, (717), 104 states have call successors, (104), 21 states have call predecessors, (104), 21 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-19 01:10:51,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 925 transitions. [2024-11-19 01:10:51,383 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 925 transitions. Word has length 148 [2024-11-19 01:10:51,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:51,385 INFO L471 AbstractCegarLoop]: Abstraction has 701 states and 925 transitions. [2024-11-19 01:10:51,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 4.666666666666667) internal successors, (56), 14 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 01:10:51,386 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 925 transitions. [2024-11-19 01:10:51,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-19 01:10:51,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:51,387 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:51,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 01:10:51,388 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:51,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:51,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1462895876, now seen corresponding path program 1 times [2024-11-19 01:10:51,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:51,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990179826] [2024-11-19 01:10:51,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:51,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:53,237 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:10:53,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:53,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990179826] [2024-11-19 01:10:53,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990179826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:53,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:53,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 01:10:53,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486627919] [2024-11-19 01:10:53,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:53,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 01:10:53,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:53,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 01:10:53,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-19 01:10:53,239 INFO L87 Difference]: Start difference. First operand 701 states and 925 transitions. Second operand has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 11 states have internal predecessors, (57), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 01:10:54,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:54,974 INFO L93 Difference]: Finished difference Result 1427 states and 1879 transitions. [2024-11-19 01:10:54,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 01:10:54,975 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 11 states have internal predecessors, (57), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 149 [2024-11-19 01:10:54,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:54,978 INFO L225 Difference]: With dead ends: 1427 [2024-11-19 01:10:54,978 INFO L226 Difference]: Without dead ends: 754 [2024-11-19 01:10:54,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2024-11-19 01:10:54,980 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 252 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:54,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 1125 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 01:10:54,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2024-11-19 01:10:55,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 716. [2024-11-19 01:10:55,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 590 states have (on average 1.2474576271186442) internal successors, (736), 599 states have internal predecessors, (736), 104 states have call successors, (104), 21 states have call predecessors, (104), 21 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-19 01:10:55,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 944 transitions. [2024-11-19 01:10:55,015 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 944 transitions. Word has length 149 [2024-11-19 01:10:55,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:55,015 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 944 transitions. [2024-11-19 01:10:55,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 11 states have internal predecessors, (57), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 01:10:55,015 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 944 transitions. [2024-11-19 01:10:55,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-19 01:10:55,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:55,017 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:55,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 01:10:55,017 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:55,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:55,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1026633086, now seen corresponding path program 1 times [2024-11-19 01:10:55,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:55,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774180746] [2024-11-19 01:10:55,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:55,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:56,629 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:10:56,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:56,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774180746] [2024-11-19 01:10:56,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774180746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:56,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:56,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 01:10:56,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484745538] [2024-11-19 01:10:56,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:56,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 01:10:56,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:56,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 01:10:56,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-19 01:10:56,632 INFO L87 Difference]: Start difference. First operand 716 states and 944 transitions. Second operand has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 11 states have internal predecessors, (57), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 01:10:57,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:57,420 INFO L93 Difference]: Finished difference Result 1486 states and 1953 transitions. [2024-11-19 01:10:57,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 01:10:57,421 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 11 states have internal predecessors, (57), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 149 [2024-11-19 01:10:57,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:57,424 INFO L225 Difference]: With dead ends: 1486 [2024-11-19 01:10:57,425 INFO L226 Difference]: Without dead ends: 798 [2024-11-19 01:10:57,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2024-11-19 01:10:57,426 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 169 mSDsluCounter, 1066 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:57,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 1244 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 01:10:57,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-11-19 01:10:57,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 775. [2024-11-19 01:10:57,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 643 states have (on average 1.2426127527216173) internal successors, (799), 654 states have internal predecessors, (799), 108 states have call successors, (108), 23 states have call predecessors, (108), 23 states have return successors, (108), 97 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-19 01:10:57,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 1015 transitions. [2024-11-19 01:10:57,465 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 1015 transitions. Word has length 149 [2024-11-19 01:10:57,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:57,465 INFO L471 AbstractCegarLoop]: Abstraction has 775 states and 1015 transitions. [2024-11-19 01:10:57,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.333333333333333) internal successors, (57), 11 states have internal predecessors, (57), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 01:10:57,466 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 1015 transitions. [2024-11-19 01:10:57,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-19 01:10:57,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:57,467 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:57,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 01:10:57,467 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:57,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:57,468 INFO L85 PathProgramCache]: Analyzing trace with hash -2122814915, now seen corresponding path program 1 times [2024-11-19 01:10:57,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:57,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363539056] [2024-11-19 01:10:57,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:57,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:57,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:58,240 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:10:58,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:58,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363539056] [2024-11-19 01:10:58,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363539056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:58,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:58,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:10:58,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946735751] [2024-11-19 01:10:58,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:58,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:10:58,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:58,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:10:58,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:10:58,243 INFO L87 Difference]: Start difference. First operand 775 states and 1015 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:10:58,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:10:58,551 INFO L93 Difference]: Finished difference Result 1440 states and 1883 transitions. [2024-11-19 01:10:58,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:10:58,552 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 149 [2024-11-19 01:10:58,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:10:58,557 INFO L225 Difference]: With dead ends: 1440 [2024-11-19 01:10:58,557 INFO L226 Difference]: Without dead ends: 693 [2024-11-19 01:10:58,559 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:10:58,561 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 51 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:10:58,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 557 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:10:58,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-11-19 01:10:58,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 691. [2024-11-19 01:10:58,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 563 states have (on average 1.2238010657193605) internal successors, (689), 572 states have internal predecessors, (689), 104 states have call successors, (104), 23 states have call predecessors, (104), 23 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-19 01:10:58,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 897 transitions. [2024-11-19 01:10:58,616 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 897 transitions. Word has length 149 [2024-11-19 01:10:58,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:10:58,616 INFO L471 AbstractCegarLoop]: Abstraction has 691 states and 897 transitions. [2024-11-19 01:10:58,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:10:58,617 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 897 transitions. [2024-11-19 01:10:58,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 01:10:58,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:10:58,618 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:10:58,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 01:10:58,619 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:10:58,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:10:58,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1261388487, now seen corresponding path program 1 times [2024-11-19 01:10:58,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:10:58,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605600996] [2024-11-19 01:10:58,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:10:58,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:10:58,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:10:59,469 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:10:59,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:10:59,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605600996] [2024-11-19 01:10:59,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605600996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:10:59,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:10:59,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 01:10:59,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052545582] [2024-11-19 01:10:59,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:10:59,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 01:10:59,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:10:59,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 01:10:59,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-19 01:10:59,472 INFO L87 Difference]: Start difference. First operand 691 states and 897 transitions. Second operand has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:11:00,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:11:00,015 INFO L93 Difference]: Finished difference Result 1378 states and 1784 transitions. [2024-11-19 01:11:00,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 01:11:00,016 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 150 [2024-11-19 01:11:00,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:11:00,021 INFO L225 Difference]: With dead ends: 1378 [2024-11-19 01:11:00,022 INFO L226 Difference]: Without dead ends: 715 [2024-11-19 01:11:00,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-11-19 01:11:00,024 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 71 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:11:00,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 1248 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:11:00,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2024-11-19 01:11:00,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 665. [2024-11-19 01:11:00,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 541 states have (on average 1.212569316081331) internal successors, (656), 549 states have internal predecessors, (656), 98 states have call successors, (98), 25 states have call predecessors, (98), 25 states have return successors, (98), 90 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-19 01:11:00,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 852 transitions. [2024-11-19 01:11:00,081 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 852 transitions. Word has length 150 [2024-11-19 01:11:00,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:11:00,081 INFO L471 AbstractCegarLoop]: Abstraction has 665 states and 852 transitions. [2024-11-19 01:11:00,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:11:00,082 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 852 transitions. [2024-11-19 01:11:00,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 01:11:00,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:11:00,083 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:11:00,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 01:11:00,083 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:11:00,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:11:00,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1116431264, now seen corresponding path program 1 times [2024-11-19 01:11:00,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:11:00,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837913282] [2024-11-19 01:11:00,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:11:00,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:11:00,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:11:01,439 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:11:01,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:11:01,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837913282] [2024-11-19 01:11:01,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837913282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:11:01,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:11:01,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-19 01:11:01,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744729119] [2024-11-19 01:11:01,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:11:01,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 01:11:01,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:11:01,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 01:11:01,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-19 01:11:01,441 INFO L87 Difference]: Start difference. First operand 665 states and 852 transitions. Second operand has 14 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 14 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 01:11:02,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:11:02,202 INFO L93 Difference]: Finished difference Result 1519 states and 1954 transitions. [2024-11-19 01:11:02,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-19 01:11:02,203 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 14 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2024-11-19 01:11:02,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:11:02,211 INFO L225 Difference]: With dead ends: 1519 [2024-11-19 01:11:02,211 INFO L226 Difference]: Without dead ends: 882 [2024-11-19 01:11:02,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2024-11-19 01:11:02,216 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 165 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 01:11:02,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 1072 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1050 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 01:11:02,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2024-11-19 01:11:02,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 734. [2024-11-19 01:11:02,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 607 states have (on average 1.2257001647446457) internal successors, (744), 616 states have internal predecessors, (744), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 91 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-19 01:11:02,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 944 transitions. [2024-11-19 01:11:02,285 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 944 transitions. Word has length 150 [2024-11-19 01:11:02,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:11:02,286 INFO L471 AbstractCegarLoop]: Abstraction has 734 states and 944 transitions. [2024-11-19 01:11:02,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 14 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-19 01:11:02,286 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 944 transitions. [2024-11-19 01:11:02,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 01:11:02,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:11:02,287 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:11:02,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-19 01:11:02,288 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:11:02,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:11:02,288 INFO L85 PathProgramCache]: Analyzing trace with hash 95362910, now seen corresponding path program 1 times [2024-11-19 01:11:02,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:11:02,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23670869] [2024-11-19 01:11:02,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:11:02,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:11:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:11:03,217 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:11:03,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:11:03,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23670869] [2024-11-19 01:11:03,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23670869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:11:03,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:11:03,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:11:03,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608513192] [2024-11-19 01:11:03,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:11:03,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:11:03,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:11:03,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:11:03,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:11:03,221 INFO L87 Difference]: Start difference. First operand 734 states and 944 transitions. Second operand has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 01:11:03,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:11:03,609 INFO L93 Difference]: Finished difference Result 1592 states and 2048 transitions. [2024-11-19 01:11:03,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:11:03,610 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2024-11-19 01:11:03,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:11:03,616 INFO L225 Difference]: With dead ends: 1592 [2024-11-19 01:11:03,616 INFO L226 Difference]: Without dead ends: 886 [2024-11-19 01:11:03,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:11:03,618 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 56 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:11:03,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 650 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:11:03,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2024-11-19 01:11:03,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 756. [2024-11-19 01:11:03,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 629 states have (on average 1.2257551669316376) internal successors, (771), 638 states have internal predecessors, (771), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 91 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-19 01:11:03,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 971 transitions. [2024-11-19 01:11:03,663 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 971 transitions. Word has length 150 [2024-11-19 01:11:03,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:11:03,664 INFO L471 AbstractCegarLoop]: Abstraction has 756 states and 971 transitions. [2024-11-19 01:11:03,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 01:11:03,666 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 971 transitions. [2024-11-19 01:11:03,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 01:11:03,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:11:03,667 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:11:03,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-19 01:11:03,668 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:11:03,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:11:03,668 INFO L85 PathProgramCache]: Analyzing trace with hash -2137056724, now seen corresponding path program 1 times [2024-11-19 01:11:03,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:11:03,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062432713] [2024-11-19 01:11:03,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:11:03,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:11:03,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:11:03,892 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:11:03,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:11:03,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062432713] [2024-11-19 01:11:03,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062432713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:11:03,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:11:03,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:11:03,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289566260] [2024-11-19 01:11:03,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:11:03,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:11:03,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:11:03,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:11:03,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:11:03,896 INFO L87 Difference]: Start difference. First operand 756 states and 971 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:11:04,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:11:04,170 INFO L93 Difference]: Finished difference Result 1623 states and 2083 transitions. [2024-11-19 01:11:04,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:11:04,171 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2024-11-19 01:11:04,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:11:04,175 INFO L225 Difference]: With dead ends: 1623 [2024-11-19 01:11:04,175 INFO L226 Difference]: Without dead ends: 895 [2024-11-19 01:11:04,176 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:11:04,177 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 45 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:11:04,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 549 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:11:04,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2024-11-19 01:11:04,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 764. [2024-11-19 01:11:04,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 764 states, 637 states have (on average 1.2260596546310831) internal successors, (781), 646 states have internal predecessors, (781), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 91 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-19 01:11:04,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 981 transitions. [2024-11-19 01:11:04,220 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 981 transitions. Word has length 150 [2024-11-19 01:11:04,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:11:04,221 INFO L471 AbstractCegarLoop]: Abstraction has 764 states and 981 transitions. [2024-11-19 01:11:04,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:11:04,221 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 981 transitions. [2024-11-19 01:11:04,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 01:11:04,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:11:04,222 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:11:04,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-19 01:11:04,223 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:11:04,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:11:04,223 INFO L85 PathProgramCache]: Analyzing trace with hash -857193046, now seen corresponding path program 1 times [2024-11-19 01:11:04,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:11:04,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251253531] [2024-11-19 01:11:04,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:11:04,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:11:04,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:11:06,200 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:11:06,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:11:06,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251253531] [2024-11-19 01:11:06,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251253531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:11:06,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:11:06,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-19 01:11:06,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436980752] [2024-11-19 01:11:06,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:11:06,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 01:11:06,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:11:06,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 01:11:06,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-19 01:11:06,203 INFO L87 Difference]: Start difference. First operand 764 states and 981 transitions. Second operand has 15 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 15 states have internal predecessors, (58), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-19 01:11:06,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:11:06,903 INFO L93 Difference]: Finished difference Result 1584 states and 2031 transitions. [2024-11-19 01:11:06,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 01:11:06,904 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 15 states have internal predecessors, (58), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) Word has length 150 [2024-11-19 01:11:06,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:11:06,907 INFO L225 Difference]: With dead ends: 1584 [2024-11-19 01:11:06,907 INFO L226 Difference]: Without dead ends: 848 [2024-11-19 01:11:06,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2024-11-19 01:11:06,909 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 100 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 01:11:06,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 1046 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 01:11:06,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2024-11-19 01:11:06,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 768. [2024-11-19 01:11:06,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 768 states, 641 states have (on average 1.2246489859594383) internal successors, (785), 650 states have internal predecessors, (785), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 91 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-19 01:11:06,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 985 transitions. [2024-11-19 01:11:06,952 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 985 transitions. Word has length 150 [2024-11-19 01:11:06,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:11:06,952 INFO L471 AbstractCegarLoop]: Abstraction has 768 states and 985 transitions. [2024-11-19 01:11:06,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 15 states have internal predecessors, (58), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-19 01:11:06,952 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 985 transitions. [2024-11-19 01:11:06,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 01:11:06,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:11:06,953 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:11:06,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-19 01:11:06,954 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:11:06,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:11:06,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1792332638, now seen corresponding path program 1 times [2024-11-19 01:11:06,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:11:06,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498561093] [2024-11-19 01:11:06,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:11:06,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:11:06,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:11:07,463 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:11:07,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:11:07,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498561093] [2024-11-19 01:11:07,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498561093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:11:07,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:11:07,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:11:07,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097199760] [2024-11-19 01:11:07,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:11:07,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:11:07,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:11:07,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:11:07,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:11:07,466 INFO L87 Difference]: Start difference. First operand 768 states and 985 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:11:07,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:11:07,801 INFO L93 Difference]: Finished difference Result 1638 states and 2093 transitions. [2024-11-19 01:11:07,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:11:07,803 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 150 [2024-11-19 01:11:07,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:11:07,806 INFO L225 Difference]: With dead ends: 1638 [2024-11-19 01:11:07,806 INFO L226 Difference]: Without dead ends: 898 [2024-11-19 01:11:07,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:11:07,808 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 65 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:11:07,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 463 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:11:07,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2024-11-19 01:11:07,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 730. [2024-11-19 01:11:07,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 605 states have (on average 1.221487603305785) internal successors, (739), 613 states have internal predecessors, (739), 98 states have call successors, (98), 26 states have call predecessors, (98), 26 states have return successors, (98), 90 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-19 01:11:07,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 935 transitions. [2024-11-19 01:11:07,853 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 935 transitions. Word has length 150 [2024-11-19 01:11:07,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:11:07,853 INFO L471 AbstractCegarLoop]: Abstraction has 730 states and 935 transitions. [2024-11-19 01:11:07,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:11:07,853 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 935 transitions. [2024-11-19 01:11:07,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 01:11:07,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:11:07,854 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:11:07,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-19 01:11:07,855 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:11:07,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:11:07,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1730293024, now seen corresponding path program 1 times [2024-11-19 01:11:07,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:11:07,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665082770] [2024-11-19 01:11:07,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:11:07,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:11:07,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:11:08,714 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:11:08,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:11:08,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665082770] [2024-11-19 01:11:08,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665082770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:11:08,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:11:08,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 01:11:08,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492632071] [2024-11-19 01:11:08,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:11:08,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 01:11:08,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:11:08,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 01:11:08,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:11:08,718 INFO L87 Difference]: Start difference. First operand 730 states and 935 transitions. Second operand has 12 states, 10 states have (on average 5.8) internal successors, (58), 12 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 01:11:09,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:11:09,520 INFO L93 Difference]: Finished difference Result 1545 states and 1974 transitions. [2024-11-19 01:11:09,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 01:11:09,521 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.8) internal successors, (58), 12 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2024-11-19 01:11:09,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:11:09,525 INFO L225 Difference]: With dead ends: 1545 [2024-11-19 01:11:09,525 INFO L226 Difference]: Without dead ends: 843 [2024-11-19 01:11:09,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-11-19 01:11:09,527 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 72 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 01:11:09,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 937 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 01:11:09,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2024-11-19 01:11:09,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 723. [2024-11-19 01:11:09,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 600 states have (on average 1.2183333333333333) internal successors, (731), 608 states have internal predecessors, (731), 96 states have call successors, (96), 26 states have call predecessors, (96), 26 states have return successors, (96), 88 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-19 01:11:09,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 923 transitions. [2024-11-19 01:11:09,577 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 923 transitions. Word has length 150 [2024-11-19 01:11:09,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:11:09,577 INFO L471 AbstractCegarLoop]: Abstraction has 723 states and 923 transitions. [2024-11-19 01:11:09,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.8) internal successors, (58), 12 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 01:11:09,578 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 923 transitions. [2024-11-19 01:11:09,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 01:11:09,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:11:09,579 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:11:09,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-19 01:11:09,579 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:11:09,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:11:09,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1543605918, now seen corresponding path program 1 times [2024-11-19 01:11:09,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:11:09,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034368377] [2024-11-19 01:11:09,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:11:09,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:11:09,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:11:10,087 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:11:10,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:11:10,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034368377] [2024-11-19 01:11:10,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034368377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:11:10,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:11:10,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 01:11:10,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160343212] [2024-11-19 01:11:10,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:11:10,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:11:10,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:11:10,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:11:10,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:11:10,089 INFO L87 Difference]: Start difference. First operand 723 states and 923 transitions. Second operand has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:11:10,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:11:10,535 INFO L93 Difference]: Finished difference Result 1535 states and 1958 transitions. [2024-11-19 01:11:10,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 01:11:10,535 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 150 [2024-11-19 01:11:10,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:11:10,540 INFO L225 Difference]: With dead ends: 1535 [2024-11-19 01:11:10,540 INFO L226 Difference]: Without dead ends: 836 [2024-11-19 01:11:10,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:11:10,542 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 68 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:11:10,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 842 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:11:10,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2024-11-19 01:11:10,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 723. [2024-11-19 01:11:10,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 600 states have (on average 1.215) internal successors, (729), 608 states have internal predecessors, (729), 96 states have call successors, (96), 26 states have call predecessors, (96), 26 states have return successors, (96), 88 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-19 01:11:10,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 921 transitions. [2024-11-19 01:11:10,588 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 921 transitions. Word has length 150 [2024-11-19 01:11:10,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:11:10,589 INFO L471 AbstractCegarLoop]: Abstraction has 723 states and 921 transitions. [2024-11-19 01:11:10,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:11:10,589 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 921 transitions. [2024-11-19 01:11:10,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 01:11:10,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:11:10,590 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:11:10,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-19 01:11:10,590 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:11:10,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:11:10,591 INFO L85 PathProgramCache]: Analyzing trace with hash 529010348, now seen corresponding path program 1 times [2024-11-19 01:11:10,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:11:10,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89398068] [2024-11-19 01:11:10,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:11:10,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:11:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:11:11,619 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:11:11,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:11:11,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89398068] [2024-11-19 01:11:11,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89398068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:11:11,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:11:11,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 01:11:11,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572615255] [2024-11-19 01:11:11,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:11:11,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:11:11,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:11:11,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:11:11,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:11:11,621 INFO L87 Difference]: Start difference. First operand 723 states and 921 transitions. Second operand has 9 states, 7 states have (on average 8.285714285714286) internal successors, (58), 9 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 01:11:12,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:11:12,100 INFO L93 Difference]: Finished difference Result 1499 states and 1907 transitions. [2024-11-19 01:11:12,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:11:12,101 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.285714285714286) internal successors, (58), 9 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2024-11-19 01:11:12,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:11:12,105 INFO L225 Difference]: With dead ends: 1499 [2024-11-19 01:11:12,105 INFO L226 Difference]: Without dead ends: 800 [2024-11-19 01:11:12,107 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:11:12,107 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 114 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:11:12,108 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 674 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:11:12,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-11-19 01:11:12,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 716. [2024-11-19 01:11:12,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 593 states have (on average 1.2074198988195615) internal successors, (716), 601 states have internal predecessors, (716), 96 states have call successors, (96), 26 states have call predecessors, (96), 26 states have return successors, (96), 88 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-19 01:11:12,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 908 transitions. [2024-11-19 01:11:12,155 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 908 transitions. Word has length 150 [2024-11-19 01:11:12,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:11:12,156 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 908 transitions. [2024-11-19 01:11:12,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.285714285714286) internal successors, (58), 9 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 01:11:12,156 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 908 transitions. [2024-11-19 01:11:12,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-19 01:11:12,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:11:12,158 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:11:12,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-19 01:11:12,158 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:11:12,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:11:12,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1549969260, now seen corresponding path program 1 times [2024-11-19 01:11:12,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:11:12,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560647814] [2024-11-19 01:11:12,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:11:12,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:11:12,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:11:12,745 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:11:12,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:11:12,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560647814] [2024-11-19 01:11:12,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560647814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:11:12,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:11:12,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 01:11:12,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890103959] [2024-11-19 01:11:12,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:11:12,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:11:12,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:11:12,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:11:12,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:11:12,750 INFO L87 Difference]: Start difference. First operand 716 states and 908 transitions. Second operand has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:11:13,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:11:13,231 INFO L93 Difference]: Finished difference Result 1512 states and 1915 transitions. [2024-11-19 01:11:13,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 01:11:13,232 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 150 [2024-11-19 01:11:13,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:11:13,238 INFO L225 Difference]: With dead ends: 1512 [2024-11-19 01:11:13,238 INFO L226 Difference]: Without dead ends: 820 [2024-11-19 01:11:13,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-19 01:11:13,240 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 60 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:11:13,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 920 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:11:13,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2024-11-19 01:11:13,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 712. [2024-11-19 01:11:13,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 589 states have (on average 1.2054329371816639) internal successors, (710), 597 states have internal predecessors, (710), 96 states have call successors, (96), 26 states have call predecessors, (96), 26 states have return successors, (96), 88 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-19 01:11:13,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 902 transitions. [2024-11-19 01:11:13,285 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 902 transitions. Word has length 150 [2024-11-19 01:11:13,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:11:13,285 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 902 transitions. [2024-11-19 01:11:13,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 9 states have internal predecessors, (58), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:11:13,285 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 902 transitions. [2024-11-19 01:11:13,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-19 01:11:13,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:11:13,286 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:11:13,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-19 01:11:13,287 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:11:13,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:11:13,287 INFO L85 PathProgramCache]: Analyzing trace with hash 2053589535, now seen corresponding path program 1 times [2024-11-19 01:11:13,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:11:13,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958688142] [2024-11-19 01:11:13,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:11:13,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:11:13,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:11:13,667 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:11:13,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:11:13,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958688142] [2024-11-19 01:11:13,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958688142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:11:13,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:11:13,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:11:13,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476408226] [2024-11-19 01:11:13,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:11:13,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:11:13,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:11:13,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:11:13,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:11:13,670 INFO L87 Difference]: Start difference. First operand 712 states and 902 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:11:13,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:11:13,978 INFO L93 Difference]: Finished difference Result 1401 states and 1772 transitions. [2024-11-19 01:11:13,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:11:13,979 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 151 [2024-11-19 01:11:13,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:11:13,982 INFO L225 Difference]: With dead ends: 1401 [2024-11-19 01:11:13,982 INFO L226 Difference]: Without dead ends: 713 [2024-11-19 01:11:13,983 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:11:13,984 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 76 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:11:13,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 529 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:11:13,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2024-11-19 01:11:14,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 642. [2024-11-19 01:11:14,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 544 states have (on average 1.213235294117647) internal successors, (660), 551 states have internal predecessors, (660), 75 states have call successors, (75), 22 states have call predecessors, (75), 22 states have return successors, (75), 68 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-19 01:11:14,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 810 transitions. [2024-11-19 01:11:14,027 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 810 transitions. Word has length 151 [2024-11-19 01:11:14,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:11:14,027 INFO L471 AbstractCegarLoop]: Abstraction has 642 states and 810 transitions. [2024-11-19 01:11:14,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:11:14,028 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 810 transitions. [2024-11-19 01:11:14,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-19 01:11:14,029 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:11:14,029 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:11:14,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-19 01:11:14,029 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:11:14,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:11:14,030 INFO L85 PathProgramCache]: Analyzing trace with hash -2009934197, now seen corresponding path program 1 times [2024-11-19 01:11:14,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:11:14,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322310166] [2024-11-19 01:11:14,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:11:14,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:11:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:11:14,146 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:11:14,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:11:14,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322310166] [2024-11-19 01:11:14,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322310166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:11:14,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:11:14,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:11:14,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559201147] [2024-11-19 01:11:14,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:11:14,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:11:14,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:11:14,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:11:14,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:11:14,148 INFO L87 Difference]: Start difference. First operand 642 states and 810 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:11:14,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:11:14,348 INFO L93 Difference]: Finished difference Result 1404 states and 1766 transitions. [2024-11-19 01:11:14,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:11:14,349 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-11-19 01:11:14,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:11:14,353 INFO L225 Difference]: With dead ends: 1404 [2024-11-19 01:11:14,353 INFO L226 Difference]: Without dead ends: 765 [2024-11-19 01:11:14,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:11:14,355 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 90 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:11:14,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 403 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:11:14,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2024-11-19 01:11:14,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 703. [2024-11-19 01:11:14,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 594 states have (on average 1.2053872053872055) internal successors, (716), 602 states have internal predecessors, (716), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-19 01:11:14,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 882 transitions. [2024-11-19 01:11:14,405 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 882 transitions. Word has length 151 [2024-11-19 01:11:14,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:11:14,405 INFO L471 AbstractCegarLoop]: Abstraction has 703 states and 882 transitions. [2024-11-19 01:11:14,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:11:14,405 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 882 transitions. [2024-11-19 01:11:14,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-19 01:11:14,406 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:11:14,406 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:11:14,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-19 01:11:14,407 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:11:14,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:11:14,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1587232371, now seen corresponding path program 1 times [2024-11-19 01:11:14,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:11:14,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332539482] [2024-11-19 01:11:14,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:11:14,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:11:14,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:11:14,840 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:11:14,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:11:14,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332539482] [2024-11-19 01:11:14,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332539482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:11:14,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:11:14,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:11:14,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690892309] [2024-11-19 01:11:14,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:11:14,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:11:14,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:11:14,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:11:14,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:11:14,846 INFO L87 Difference]: Start difference. First operand 703 states and 882 transitions. Second operand has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:11:15,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:11:15,253 INFO L93 Difference]: Finished difference Result 1394 states and 1750 transitions. [2024-11-19 01:11:15,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 01:11:15,253 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 151 [2024-11-19 01:11:15,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:11:15,256 INFO L225 Difference]: With dead ends: 1394 [2024-11-19 01:11:15,257 INFO L226 Difference]: Without dead ends: 694 [2024-11-19 01:11:15,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:11:15,258 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 144 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:11:15,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 502 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:11:15,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2024-11-19 01:11:15,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 676. [2024-11-19 01:11:15,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 567 states have (on average 1.2045855379188712) internal successors, (683), 575 states have internal predecessors, (683), 83 states have call successors, (83), 25 states have call predecessors, (83), 25 states have return successors, (83), 75 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-19 01:11:15,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 849 transitions. [2024-11-19 01:11:15,305 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 849 transitions. Word has length 151 [2024-11-19 01:11:15,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:11:15,305 INFO L471 AbstractCegarLoop]: Abstraction has 676 states and 849 transitions. [2024-11-19 01:11:15,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:11:15,305 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 849 transitions. [2024-11-19 01:11:15,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-19 01:11:15,306 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:11:15,307 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:11:15,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-19 01:11:15,307 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:11:15,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:11:15,307 INFO L85 PathProgramCache]: Analyzing trace with hash 325681333, now seen corresponding path program 1 times [2024-11-19 01:11:15,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:11:15,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8093194] [2024-11-19 01:11:15,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:11:15,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:11:15,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:11:16,089 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:11:16,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:11:16,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8093194] [2024-11-19 01:11:16,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8093194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:11:16,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:11:16,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:11:16,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139666443] [2024-11-19 01:11:16,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:11:16,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:11:16,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:11:16,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:11:16,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:11:16,092 INFO L87 Difference]: Start difference. First operand 676 states and 849 transitions. Second operand has 7 states, 5 states have (on average 12.0) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 01:11:16,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:11:16,430 INFO L93 Difference]: Finished difference Result 1765 states and 2209 transitions. [2024-11-19 01:11:16,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:11:16,431 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 12.0) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 152 [2024-11-19 01:11:16,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:11:16,434 INFO L225 Difference]: With dead ends: 1765 [2024-11-19 01:11:16,434 INFO L226 Difference]: Without dead ends: 1092 [2024-11-19 01:11:16,435 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:11:16,437 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 51 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:11:16,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 498 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:11:16,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2024-11-19 01:11:16,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 891. [2024-11-19 01:11:16,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 891 states, 779 states have (on average 1.2015404364569962) internal successors, (936), 788 states have internal predecessors, (936), 85 states have call successors, (85), 26 states have call predecessors, (85), 26 states have return successors, (85), 76 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-19 01:11:16,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1106 transitions. [2024-11-19 01:11:16,489 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1106 transitions. Word has length 152 [2024-11-19 01:11:16,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:11:16,490 INFO L471 AbstractCegarLoop]: Abstraction has 891 states and 1106 transitions. [2024-11-19 01:11:16,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 12.0) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 01:11:16,490 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1106 transitions. [2024-11-19 01:11:16,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-19 01:11:16,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:11:16,491 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:11:16,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-19 01:11:16,492 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:11:16,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:11:16,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1026745911, now seen corresponding path program 1 times [2024-11-19 01:11:16,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:11:16,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432940095] [2024-11-19 01:11:16,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:11:16,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:11:16,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:11:17,576 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:11:17,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:11:17,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432940095] [2024-11-19 01:11:17,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432940095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:11:17,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:11:17,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 01:11:17,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540905944] [2024-11-19 01:11:17,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:11:17,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:11:17,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:11:17,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:11:17,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:11:17,579 INFO L87 Difference]: Start difference. First operand 891 states and 1106 transitions. Second operand has 10 states, 9 states have (on average 6.666666666666667) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:11:18,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:11:18,183 INFO L93 Difference]: Finished difference Result 1162 states and 1441 transitions. [2024-11-19 01:11:18,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 01:11:18,184 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.666666666666667) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 152 [2024-11-19 01:11:18,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:11:18,187 INFO L225 Difference]: With dead ends: 1162 [2024-11-19 01:11:18,188 INFO L226 Difference]: Without dead ends: 1160 [2024-11-19 01:11:18,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2024-11-19 01:11:18,190 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 155 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:11:18,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 779 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:11:18,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2024-11-19 01:11:18,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 841. [2024-11-19 01:11:18,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 739 states have (on average 1.1975642760487144) internal successors, (885), 746 states have internal predecessors, (885), 77 states have call successors, (77), 24 states have call predecessors, (77), 24 states have return successors, (77), 70 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-19 01:11:18,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1039 transitions. [2024-11-19 01:11:18,245 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1039 transitions. Word has length 152 [2024-11-19 01:11:18,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:11:18,246 INFO L471 AbstractCegarLoop]: Abstraction has 841 states and 1039 transitions. [2024-11-19 01:11:18,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.666666666666667) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:11:18,246 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1039 transitions. [2024-11-19 01:11:18,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-19 01:11:18,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:11:18,247 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:11:18,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-19 01:11:18,247 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:11:18,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:11:18,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1028592953, now seen corresponding path program 1 times [2024-11-19 01:11:18,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:11:18,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423962429] [2024-11-19 01:11:18,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:11:18,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:11:18,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:11:18,427 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:11:18,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:11:18,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423962429] [2024-11-19 01:11:18,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423962429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:11:18,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:11:18,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:11:18,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142358519] [2024-11-19 01:11:18,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:11:18,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:11:18,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:11:18,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:11:18,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:11:18,430 INFO L87 Difference]: Start difference. First operand 841 states and 1039 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:11:18,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:11:18,613 INFO L93 Difference]: Finished difference Result 1735 states and 2143 transitions. [2024-11-19 01:11:18,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:11:18,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-19 01:11:18,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:11:18,617 INFO L225 Difference]: With dead ends: 1735 [2024-11-19 01:11:18,617 INFO L226 Difference]: Without dead ends: 897 [2024-11-19 01:11:18,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:11:18,619 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 85 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:11:18,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 500 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:11:18,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2024-11-19 01:11:18,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 896. [2024-11-19 01:11:18,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 772 states have (on average 1.1787564766839378) internal successors, (910), 780 states have internal predecessors, (910), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-19 01:11:18,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1098 transitions. [2024-11-19 01:11:18,686 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1098 transitions. Word has length 152 [2024-11-19 01:11:18,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:11:18,686 INFO L471 AbstractCegarLoop]: Abstraction has 896 states and 1098 transitions. [2024-11-19 01:11:18,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:11:18,686 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1098 transitions. [2024-11-19 01:11:18,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-19 01:11:18,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:11:18,687 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:11:18,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-19 01:11:18,688 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:11:18,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:11:18,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1491366981, now seen corresponding path program 1 times [2024-11-19 01:11:18,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:11:18,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297158717] [2024-11-19 01:11:18,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:11:18,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:11:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:11:18,794 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-19 01:11:18,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:11:18,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297158717] [2024-11-19 01:11:18,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297158717] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:11:18,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081070487] [2024-11-19 01:11:18,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:11:18,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:11:18,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:11:18,796 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:11:18,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 01:11:19,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:11:19,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 01:11:19,017 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:11:19,050 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:11:19,050 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:11:19,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081070487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:11:19,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:11:19,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-19 01:11:19,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144723672] [2024-11-19 01:11:19,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:11:19,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:11:19,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:11:19,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:11:19,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:11:19,052 INFO L87 Difference]: Start difference. First operand 896 states and 1098 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:11:19,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:11:19,126 INFO L93 Difference]: Finished difference Result 1762 states and 2161 transitions. [2024-11-19 01:11:19,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:11:19,127 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-19 01:11:19,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:11:19,130 INFO L225 Difference]: With dead ends: 1762 [2024-11-19 01:11:19,130 INFO L226 Difference]: Without dead ends: 920 [2024-11-19 01:11:19,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:11:19,132 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:11:19,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 548 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:11:19,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2024-11-19 01:11:19,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 920. [2024-11-19 01:11:19,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 796 states have (on average 1.1733668341708543) internal successors, (934), 804 states have internal predecessors, (934), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-19 01:11:19,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1122 transitions. [2024-11-19 01:11:19,194 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1122 transitions. Word has length 152 [2024-11-19 01:11:19,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:11:19,194 INFO L471 AbstractCegarLoop]: Abstraction has 920 states and 1122 transitions. [2024-11-19 01:11:19,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:11:19,194 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1122 transitions. [2024-11-19 01:11:19,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-19 01:11:19,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:11:19,195 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:11:19,209 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 01:11:19,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-19 01:11:19,396 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:11:19,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:11:19,397 INFO L85 PathProgramCache]: Analyzing trace with hash -820971643, now seen corresponding path program 1 times [2024-11-19 01:11:19,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:11:19,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883033268] [2024-11-19 01:11:19,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:11:19,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:11:19,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:11:20,673 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:11:20,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:11:20,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883033268] [2024-11-19 01:11:20,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883033268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:11:20,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:11:20,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-19 01:11:20,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778961027] [2024-11-19 01:11:20,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:11:20,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 01:11:20,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:11:20,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 01:11:20,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-11-19 01:11:20,674 INFO L87 Difference]: Start difference. First operand 920 states and 1122 transitions. Second operand has 14 states, 12 states have (on average 5.0) internal successors, (60), 14 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 01:11:21,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:11:21,370 INFO L93 Difference]: Finished difference Result 1930 states and 2347 transitions. [2024-11-19 01:11:21,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 01:11:21,370 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.0) internal successors, (60), 14 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 152 [2024-11-19 01:11:21,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:11:21,374 INFO L225 Difference]: With dead ends: 1930 [2024-11-19 01:11:21,374 INFO L226 Difference]: Without dead ends: 1064 [2024-11-19 01:11:21,375 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2024-11-19 01:11:21,375 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 54 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1381 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 01:11:21,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1381 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 01:11:21,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2024-11-19 01:11:21,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 972. [2024-11-19 01:11:21,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 848 states have (on average 1.1757075471698113) internal successors, (997), 856 states have internal predecessors, (997), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-19 01:11:21,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1185 transitions. [2024-11-19 01:11:21,437 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1185 transitions. Word has length 152 [2024-11-19 01:11:21,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:11:21,437 INFO L471 AbstractCegarLoop]: Abstraction has 972 states and 1185 transitions. [2024-11-19 01:11:21,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.0) internal successors, (60), 14 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-19 01:11:21,438 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1185 transitions. [2024-11-19 01:11:21,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-19 01:11:21,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:11:21,439 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:11:21,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-19 01:11:21,439 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:11:21,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:11:21,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1330444733, now seen corresponding path program 1 times [2024-11-19 01:11:21,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:11:21,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475469654] [2024-11-19 01:11:21,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:11:21,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:11:21,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:11:21,587 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:11:21,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:11:21,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475469654] [2024-11-19 01:11:21,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475469654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:11:21,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:11:21,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:11:21,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361225475] [2024-11-19 01:11:21,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:11:21,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:11:21,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:11:21,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:11:21,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:11:21,590 INFO L87 Difference]: Start difference. First operand 972 states and 1185 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:11:21,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:11:21,872 INFO L93 Difference]: Finished difference Result 1940 states and 2349 transitions. [2024-11-19 01:11:21,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:11:21,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-19 01:11:21,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:11:21,876 INFO L225 Difference]: With dead ends: 1940 [2024-11-19 01:11:21,876 INFO L226 Difference]: Without dead ends: 1022 [2024-11-19 01:11:21,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:11:21,877 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 59 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:11:21,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 434 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:11:21,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2024-11-19 01:11:21,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 916. [2024-11-19 01:11:21,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 792 states have (on average 1.167929292929293) internal successors, (925), 800 states have internal predecessors, (925), 94 states have call successors, (94), 29 states have call predecessors, (94), 29 states have return successors, (94), 86 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-19 01:11:21,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1113 transitions. [2024-11-19 01:11:21,940 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1113 transitions. Word has length 152 [2024-11-19 01:11:21,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:11:21,941 INFO L471 AbstractCegarLoop]: Abstraction has 916 states and 1113 transitions. [2024-11-19 01:11:21,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:11:21,941 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1113 transitions. [2024-11-19 01:11:21,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-19 01:11:21,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:11:21,942 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:11:21,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-19 01:11:21,942 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:11:21,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:11:21,943 INFO L85 PathProgramCache]: Analyzing trace with hash 392114053, now seen corresponding path program 1 times [2024-11-19 01:11:21,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:11:21,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677478366] [2024-11-19 01:11:21,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:11:21,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:11:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:11:22,243 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:11:22,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:11:22,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677478366] [2024-11-19 01:11:22,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677478366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:11:22,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:11:22,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 01:11:22,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052340511] [2024-11-19 01:11:22,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:11:22,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:11:22,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:11:22,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:11:22,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:11:22,245 INFO L87 Difference]: Start difference. First operand 916 states and 1113 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:11:22,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:11:22,710 INFO L93 Difference]: Finished difference Result 1970 states and 2391 transitions. [2024-11-19 01:11:22,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 01:11:22,710 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-19 01:11:22,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:11:22,718 INFO L225 Difference]: With dead ends: 1970 [2024-11-19 01:11:22,718 INFO L226 Difference]: Without dead ends: 1108 [2024-11-19 01:11:22,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-11-19 01:11:22,719 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 117 mSDsluCounter, 1454 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:11:22,719 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 1660 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:11:22,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2024-11-19 01:11:22,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 1021. [2024-11-19 01:11:22,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 873 states have (on average 1.1557846506300113) internal successors, (1009), 882 states have internal predecessors, (1009), 113 states have call successors, (113), 34 states have call predecessors, (113), 34 states have return successors, (113), 104 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-19 01:11:22,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1235 transitions. [2024-11-19 01:11:22,822 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1235 transitions. Word has length 152 [2024-11-19 01:11:22,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:11:22,822 INFO L471 AbstractCegarLoop]: Abstraction has 1021 states and 1235 transitions. [2024-11-19 01:11:22,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:11:22,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1235 transitions. [2024-11-19 01:11:22,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-19 01:11:22,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:11:22,827 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:11:22,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-19 01:11:22,827 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:11:22,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:11:22,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1671977731, now seen corresponding path program 1 times [2024-11-19 01:11:22,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:11:22,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870654884] [2024-11-19 01:11:22,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:11:22,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:11:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:11:23,050 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:11:23,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:11:23,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870654884] [2024-11-19 01:11:23,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870654884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:11:23,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:11:23,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:11:23,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515800171] [2024-11-19 01:11:23,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:11:23,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:11:23,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:11:23,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:11:23,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:11:23,052 INFO L87 Difference]: Start difference. First operand 1021 states and 1235 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:11:23,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:11:23,348 INFO L93 Difference]: Finished difference Result 2072 states and 2492 transitions. [2024-11-19 01:11:23,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:11:23,348 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-19 01:11:23,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:11:23,352 INFO L225 Difference]: With dead ends: 2072 [2024-11-19 01:11:23,352 INFO L226 Difference]: Without dead ends: 1105 [2024-11-19 01:11:23,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:11:23,354 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 45 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:11:23,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 545 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:11:23,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2024-11-19 01:11:23,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 999. [2024-11-19 01:11:23,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 851 states have (on average 1.1480611045828437) internal successors, (977), 860 states have internal predecessors, (977), 113 states have call successors, (113), 34 states have call predecessors, (113), 34 states have return successors, (113), 104 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-19 01:11:23,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1203 transitions. [2024-11-19 01:11:23,433 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1203 transitions. Word has length 152 [2024-11-19 01:11:23,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:11:23,433 INFO L471 AbstractCegarLoop]: Abstraction has 999 states and 1203 transitions. [2024-11-19 01:11:23,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:11:23,434 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1203 transitions. [2024-11-19 01:11:23,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-19 01:11:23,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:11:23,435 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:11:23,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-19 01:11:23,435 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:11:23,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:11:23,436 INFO L85 PathProgramCache]: Analyzing trace with hash 867128544, now seen corresponding path program 1 times [2024-11-19 01:11:23,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:11:23,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335091954] [2024-11-19 01:11:23,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:11:23,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:11:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:11:23,772 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:11:23,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:11:23,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335091954] [2024-11-19 01:11:23,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335091954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:11:23,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:11:23,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:11:23,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251420512] [2024-11-19 01:11:23,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:11:23,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:11:23,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:11:23,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:11:23,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:11:23,776 INFO L87 Difference]: Start difference. First operand 999 states and 1203 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:11:24,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:11:24,287 INFO L93 Difference]: Finished difference Result 2355 states and 2779 transitions. [2024-11-19 01:11:24,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:11:24,288 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 154 [2024-11-19 01:11:24,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:11:24,295 INFO L225 Difference]: With dead ends: 2355 [2024-11-19 01:11:24,296 INFO L226 Difference]: Without dead ends: 1410 [2024-11-19 01:11:24,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:11:24,301 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 43 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:11:24,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 556 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:11:24,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2024-11-19 01:11:24,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1323. [2024-11-19 01:11:24,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1323 states, 1139 states have (on average 1.112379280070237) internal successors, (1267), 1154 states have internal predecessors, (1267), 137 states have call successors, (137), 46 states have call predecessors, (137), 46 states have return successors, (137), 122 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-19 01:11:24,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 1541 transitions. [2024-11-19 01:11:24,418 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 1541 transitions. Word has length 154 [2024-11-19 01:11:24,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:11:24,418 INFO L471 AbstractCegarLoop]: Abstraction has 1323 states and 1541 transitions. [2024-11-19 01:11:24,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:11:24,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 1541 transitions. [2024-11-19 01:11:24,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-19 01:11:24,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:11:24,420 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:11:24,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-19 01:11:24,420 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:11:24,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:11:24,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1963407648, now seen corresponding path program 1 times [2024-11-19 01:11:24,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:11:24,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819364340] [2024-11-19 01:11:24,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:11:24,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:11:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:11:24,627 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:11:24,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:11:24,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819364340] [2024-11-19 01:11:24,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819364340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:11:24,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:11:24,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:11:24,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132803325] [2024-11-19 01:11:24,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:11:24,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:11:24,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:11:24,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:11:24,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:11:24,630 INFO L87 Difference]: Start difference. First operand 1323 states and 1541 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:11:25,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:11:25,060 INFO L93 Difference]: Finished difference Result 3032 states and 3519 transitions. [2024-11-19 01:11:25,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:11:25,061 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 154 [2024-11-19 01:11:25,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:11:25,065 INFO L225 Difference]: With dead ends: 3032 [2024-11-19 01:11:25,065 INFO L226 Difference]: Without dead ends: 1763 [2024-11-19 01:11:25,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:11:25,067 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 51 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:11:25,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 629 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:11:25,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1763 states. [2024-11-19 01:11:25,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1763 to 1488. [2024-11-19 01:11:25,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1304 states have (on average 1.10659509202454) internal successors, (1443), 1319 states have internal predecessors, (1443), 137 states have call successors, (137), 46 states have call predecessors, (137), 46 states have return successors, (137), 122 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-19 01:11:25,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 1717 transitions. [2024-11-19 01:11:25,182 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 1717 transitions. Word has length 154 [2024-11-19 01:11:25,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:11:25,184 INFO L471 AbstractCegarLoop]: Abstraction has 1488 states and 1717 transitions. [2024-11-19 01:11:25,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:11:25,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 1717 transitions. [2024-11-19 01:11:25,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-19 01:11:25,189 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:11:25,189 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:11:25,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-19 01:11:25,189 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:11:25,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:11:25,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1376601634, now seen corresponding path program 1 times [2024-11-19 01:11:25,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:11:25,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961363263] [2024-11-19 01:11:25,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:11:25,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:11:25,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:11:25,925 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:11:25,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:11:25,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961363263] [2024-11-19 01:11:25,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961363263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:11:25,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:11:25,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:11:25,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543130940] [2024-11-19 01:11:25,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:11:25,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:11:25,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:11:25,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:11:25,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:11:25,927 INFO L87 Difference]: Start difference. First operand 1488 states and 1717 transitions. Second operand has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:11:26,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:11:26,500 INFO L93 Difference]: Finished difference Result 3177 states and 3649 transitions. [2024-11-19 01:11:26,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:11:26,500 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 154 [2024-11-19 01:11:26,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:11:26,509 INFO L225 Difference]: With dead ends: 3177 [2024-11-19 01:11:26,509 INFO L226 Difference]: Without dead ends: 1743 [2024-11-19 01:11:26,516 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:11:26,516 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 43 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:11:26,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 777 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:11:26,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2024-11-19 01:11:26,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 1482. [2024-11-19 01:11:26,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1298 states have (on average 1.1070878274268106) internal successors, (1437), 1313 states have internal predecessors, (1437), 137 states have call successors, (137), 46 states have call predecessors, (137), 46 states have return successors, (137), 122 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-19 01:11:26,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 1711 transitions. [2024-11-19 01:11:26,654 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 1711 transitions. Word has length 154 [2024-11-19 01:11:26,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:11:26,655 INFO L471 AbstractCegarLoop]: Abstraction has 1482 states and 1711 transitions. [2024-11-19 01:11:26,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 01:11:26,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 1711 transitions. [2024-11-19 01:11:26,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 01:11:26,657 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:11:26,657 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:11:26,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-19 01:11:26,657 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:11:26,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:11:26,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1383117117, now seen corresponding path program 1 times [2024-11-19 01:11:26,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:11:26,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119214743] [2024-11-19 01:11:26,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:11:26,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:11:26,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:11:26,946 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:11:26,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:11:26,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119214743] [2024-11-19 01:11:26,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119214743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:11:26,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:11:26,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:11:26,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555764082] [2024-11-19 01:11:26,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:11:26,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:11:26,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:11:26,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:11:26,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:11:26,948 INFO L87 Difference]: Start difference. First operand 1482 states and 1711 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:11:27,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:11:27,398 INFO L93 Difference]: Finished difference Result 4327 states and 4989 transitions. [2024-11-19 01:11:27,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 01:11:27,398 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-11-19 01:11:27,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:11:27,402 INFO L225 Difference]: With dead ends: 4327 [2024-11-19 01:11:27,402 INFO L226 Difference]: Without dead ends: 1518 [2024-11-19 01:11:27,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-19 01:11:27,405 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 103 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:11:27,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 1049 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:11:27,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2024-11-19 01:11:27,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1491. [2024-11-19 01:11:27,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1491 states, 1307 states have (on average 1.0864575363427698) internal successors, (1420), 1322 states have internal predecessors, (1420), 137 states have call successors, (137), 46 states have call predecessors, (137), 46 states have return successors, (137), 122 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-19 01:11:27,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 1694 transitions. [2024-11-19 01:11:27,521 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 1694 transitions. Word has length 155 [2024-11-19 01:11:27,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:11:27,521 INFO L471 AbstractCegarLoop]: Abstraction has 1491 states and 1694 transitions. [2024-11-19 01:11:27,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:11:27,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 1694 transitions. [2024-11-19 01:11:27,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 01:11:27,523 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:11:27,523 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:11:27,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-19 01:11:27,523 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:11:27,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:11:27,524 INFO L85 PathProgramCache]: Analyzing trace with hash 540110917, now seen corresponding path program 1 times [2024-11-19 01:11:27,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:11:27,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297465473] [2024-11-19 01:11:27,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:11:27,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:11:27,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 01:11:27,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1233190802] [2024-11-19 01:11:27,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:11:27,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:11:27,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:11:27,613 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:11:27,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 01:11:28,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:11:28,037 INFO L255 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 74 conjuncts are in the unsatisfiable core [2024-11-19 01:11:28,051 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:11:28,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:11:28,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:11:28,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:11:28,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:11:28,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:11:28,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:11:28,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-19 01:11:28,152 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:11:28,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2024-11-19 01:11:28,175 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:11:28,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 57 [2024-11-19 01:11:28,219 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:11:28,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 81 treesize of output 89 [2024-11-19 01:11:29,065 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:11:29,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 212 treesize of output 70 [2024-11-19 01:11:29,155 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 178 proven. 6 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2024-11-19 01:11:29,156 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:11:29,792 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:11:29,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:11:29,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297465473] [2024-11-19 01:11:29,793 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 01:11:29,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233190802] [2024-11-19 01:11:29,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233190802] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-19 01:11:29,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:11:29,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 19 [2024-11-19 01:11:29,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593301272] [2024-11-19 01:11:29,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:11:29,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:11:29,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:11:29,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:11:29,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2024-11-19 01:11:29,795 INFO L87 Difference]: Start difference. First operand 1491 states and 1694 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:11:33,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:11:33,067 INFO L93 Difference]: Finished difference Result 2986 states and 3378 transitions. [2024-11-19 01:11:33,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:11:33,069 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-11-19 01:11:33,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:11:33,073 INFO L225 Difference]: With dead ends: 2986 [2024-11-19 01:11:33,074 INFO L226 Difference]: Without dead ends: 1549 [2024-11-19 01:11:33,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-19 01:11:33,076 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 137 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-19 01:11:33,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 555 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-19 01:11:33,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1549 states. [2024-11-19 01:11:33,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1549 to 1468. [2024-11-19 01:11:33,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 1283 states have (on average 1.0810600155884644) internal successors, (1387), 1298 states have internal predecessors, (1387), 137 states have call successors, (137), 47 states have call predecessors, (137), 47 states have return successors, (137), 122 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-19 01:11:33,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 1661 transitions. [2024-11-19 01:11:33,216 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 1661 transitions. Word has length 155 [2024-11-19 01:11:33,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:11:33,216 INFO L471 AbstractCegarLoop]: Abstraction has 1468 states and 1661 transitions. [2024-11-19 01:11:33,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:11:33,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 1661 transitions. [2024-11-19 01:11:33,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 01:11:33,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:11:33,218 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:11:33,228 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 01:11:33,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:11:33,420 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:11:33,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:11:33,420 INFO L85 PathProgramCache]: Analyzing trace with hash 686579077, now seen corresponding path program 1 times [2024-11-19 01:11:33,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:11:33,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738863857] [2024-11-19 01:11:33,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:11:33,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:11:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 01:11:33,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1536337387] [2024-11-19 01:11:33,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:11:33,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:11:33,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:11:33,529 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:11:33,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 01:11:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:11:33,902 INFO L255 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-19 01:11:33,907 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:11:33,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:11:33,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:11:33,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:11:33,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:11:33,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:11:33,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:11:33,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:11:33,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 01:11:33,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:11:33,943 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:11:33,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 39 [2024-11-19 01:11:34,227 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:11:34,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 131 treesize of output 41 [2024-11-19 01:11:34,267 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-19 01:11:34,267 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:11:34,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:11:34,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738863857] [2024-11-19 01:11:34,268 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 01:11:34,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536337387] [2024-11-19 01:11:34,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536337387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:11:34,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:11:34,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:11:34,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594284251] [2024-11-19 01:11:34,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:11:34,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:11:34,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:11:34,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:11:34,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:11:34,269 INFO L87 Difference]: Start difference. First operand 1468 states and 1661 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:11:35,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:11:35,161 INFO L93 Difference]: Finished difference Result 2879 states and 3245 transitions. [2024-11-19 01:11:35,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:11:35,162 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-11-19 01:11:35,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:11:35,164 INFO L225 Difference]: With dead ends: 2879 [2024-11-19 01:11:35,164 INFO L226 Difference]: Without dead ends: 0 [2024-11-19 01:11:35,167 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:11:35,168 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 94 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 01:11:35,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 402 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 01:11:35,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-19 01:11:35,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-19 01:11:35,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:11:35,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-19 01:11:35,171 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 155 [2024-11-19 01:11:35,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:11:35,171 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 01:11:35,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-19 01:11:35,171 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-19 01:11:35,171 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-19 01:11:35,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-19 01:11:35,192 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 01:11:35,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:11:35,378 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:11:35,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.