./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem16_label21.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem16_label21.c -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 65d8d3945381d661ce5474c3cff9730baeab9a2acda6eca872378ca6ce467896 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 11:33:58,649 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 11:33:58,699 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 11:33:58,704 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 11:33:58,705 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 11:33:58,729 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 11:33:58,730 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 11:33:58,730 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 11:33:58,731 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 11:33:58,732 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 11:33:58,734 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 11:33:58,734 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 11:33:58,734 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 11:33:58,734 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 11:33:58,735 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 11:33:58,735 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 11:33:58,735 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 11:33:58,735 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 11:33:58,735 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 11:33:58,735 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 11:33:58,735 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 11:33:58,737 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 11:33:58,737 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 11:33:58,737 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 11:33:58,737 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 11:33:58,738 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 11:33:58,738 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 11:33:58,738 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 11:33:58,738 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 11:33:58,738 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 11:33:58,738 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 11:33:58,739 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 11:33:58,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 11:33:58,739 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 11:33:58,740 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 11:33:58,740 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 11:33:58,740 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 11:33:58,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 11:33:58,741 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 11:33:58,741 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 11:33:58,741 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 11:33:58,741 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 11:33:58,741 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65d8d3945381d661ce5474c3cff9730baeab9a2acda6eca872378ca6ce467896 [2024-11-08 11:33:58,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 11:33:58,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 11:33:58,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 11:33:58,978 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 11:33:58,979 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 11:33:58,979 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem16_label21.c [2024-11-08 11:34:00,153 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 11:34:00,408 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 11:34:00,408 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label21.c [2024-11-08 11:34:00,425 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93a6832c6/b384eb94086d4eaf9e264169f6096deb/FLAG2da172fa3 [2024-11-08 11:34:00,741 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93a6832c6/b384eb94086d4eaf9e264169f6096deb [2024-11-08 11:34:00,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 11:34:00,744 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 11:34:00,745 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 11:34:00,745 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 11:34:00,749 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 11:34:00,750 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:34:00" (1/1) ... [2024-11-08 11:34:00,750 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2402ec5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:34:00, skipping insertion in model container [2024-11-08 11:34:00,751 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:34:00" (1/1) ... [2024-11-08 11:34:00,814 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 11:34:00,990 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/eca-rers2012/Problem16_label21.c[4121,4134] [2024-11-08 11:34:01,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 11:34:01,280 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 11:34:01,294 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/eca-rers2012/Problem16_label21.c[4121,4134] [2024-11-08 11:34:01,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 11:34:01,417 INFO L204 MainTranslator]: Completed translation [2024-11-08 11:34:01,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:34:01 WrapperNode [2024-11-08 11:34:01,417 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 11:34:01,418 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 11:34:01,418 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 11:34:01,418 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 11:34:01,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:34:01" (1/1) ... [2024-11-08 11:34:01,453 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:34:01" (1/1) ... [2024-11-08 11:34:01,532 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1770 [2024-11-08 11:34:01,533 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 11:34:01,533 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 11:34:01,533 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 11:34:01,533 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 11:34:01,542 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:34:01" (1/1) ... [2024-11-08 11:34:01,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:34:01" (1/1) ... [2024-11-08 11:34:01,552 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:34:01" (1/1) ... [2024-11-08 11:34:01,651 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 11:34:01,652 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:34:01" (1/1) ... [2024-11-08 11:34:01,652 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:34:01" (1/1) ... [2024-11-08 11:34:01,679 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:34:01" (1/1) ... [2024-11-08 11:34:01,686 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:34:01" (1/1) ... [2024-11-08 11:34:01,695 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:34:01" (1/1) ... [2024-11-08 11:34:01,703 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:34:01" (1/1) ... [2024-11-08 11:34:01,714 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 11:34:01,715 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 11:34:01,715 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 11:34:01,715 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 11:34:01,715 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:34:01" (1/1) ... [2024-11-08 11:34:01,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 11:34:01,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:34:01,744 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 11:34:01,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 11:34:01,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 11:34:01,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 11:34:01,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 11:34:01,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 11:34:01,889 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 11:34:01,890 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 11:34:03,519 INFO L? ?]: Removed 276 outVars from TransFormulas that were not future-live. [2024-11-08 11:34:03,520 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 11:34:03,545 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 11:34:03,545 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 11:34:03,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:34:03 BoogieIcfgContainer [2024-11-08 11:34:03,546 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 11:34:03,551 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 11:34:03,551 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 11:34:03,553 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 11:34:03,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:34:00" (1/3) ... [2024-11-08 11:34:03,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610774ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:34:03, skipping insertion in model container [2024-11-08 11:34:03,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:34:01" (2/3) ... [2024-11-08 11:34:03,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610774ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:34:03, skipping insertion in model container [2024-11-08 11:34:03,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:34:03" (3/3) ... [2024-11-08 11:34:03,555 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label21.c [2024-11-08 11:34:03,567 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 11:34:03,567 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 11:34:03,619 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 11:34:03,624 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;@6fb7c9ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 11:34:03,626 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 11:34:03,631 INFO L276 IsEmpty]: Start isEmpty. Operand has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 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) [2024-11-08 11:34:03,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-08 11:34:03,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:34:03,638 INFO L215 NwaCegarLoop]: trace 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] [2024-11-08 11:34:03,639 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:34:03,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:34:03,643 INFO L85 PathProgramCache]: Analyzing trace with hash 323974986, now seen corresponding path program 1 times [2024-11-08 11:34:03,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:34:03,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514740769] [2024-11-08 11:34:03,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:34:03,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:34:03,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:34:03,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:34:03,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:34:03,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514740769] [2024-11-08 11:34:03,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514740769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:34:03,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:34:03,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:34:03,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706902584] [2024-11-08 11:34:03,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:34:03,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:34:03,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:34:04,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:34:04,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:34:04,006 INFO L87 Difference]: Start difference. First operand has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 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) Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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) [2024-11-08 11:34:06,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:34:06,003 INFO L93 Difference]: Finished difference Result 1456 states and 2764 transitions. [2024-11-08 11:34:06,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:34:06,005 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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) Word has length 38 [2024-11-08 11:34:06,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:34:06,023 INFO L225 Difference]: With dead ends: 1456 [2024-11-08 11:34:06,023 INFO L226 Difference]: Without dead ends: 991 [2024-11-08 11:34:06,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 11:34:06,029 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 1079 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 1599 mSolverCounterSat, 792 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 2391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 792 IncrementalHoareTripleChecker+Valid, 1599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 11:34:06,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1079 Valid, 96 Invalid, 2391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [792 Valid, 1599 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 11:34:06,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2024-11-08 11:34:06,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 991. [2024-11-08 11:34:06,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 990 states have (on average 1.497979797979798) internal successors, (1483), 990 states have internal predecessors, (1483), 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) [2024-11-08 11:34:06,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1483 transitions. [2024-11-08 11:34:06,103 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1483 transitions. Word has length 38 [2024-11-08 11:34:06,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:34:06,103 INFO L471 AbstractCegarLoop]: Abstraction has 991 states and 1483 transitions. [2024-11-08 11:34:06,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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) [2024-11-08 11:34:06,104 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1483 transitions. [2024-11-08 11:34:06,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-08 11:34:06,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:34:06,109 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:34:06,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 11:34:06,109 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:34:06,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:34:06,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1339527614, now seen corresponding path program 1 times [2024-11-08 11:34:06,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:34:06,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268159904] [2024-11-08 11:34:06,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:34:06,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:34:06,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:34:06,425 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:34:06,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:34:06,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268159904] [2024-11-08 11:34:06,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268159904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:34:06,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:34:06,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:34:06,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905525409] [2024-11-08 11:34:06,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:34:06,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:34:06,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:34:06,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:34:06,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:34:06,434 INFO L87 Difference]: Start difference. First operand 991 states and 1483 transitions. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2024-11-08 11:34:07,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:34:07,454 INFO L93 Difference]: Finished difference Result 1980 states and 3168 transitions. [2024-11-08 11:34:07,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:34:07,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) Word has length 228 [2024-11-08 11:34:07,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:34:07,459 INFO L225 Difference]: With dead ends: 1980 [2024-11-08 11:34:07,459 INFO L226 Difference]: Without dead ends: 1320 [2024-11-08 11:34:07,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:34:07,464 INFO L432 NwaCegarLoop]: 533 mSDtfsCounter, 279 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:34:07,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 539 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 11:34:07,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2024-11-08 11:34:07,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1320. [2024-11-08 11:34:07,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1319 states have (on average 1.423805913570887) internal successors, (1878), 1319 states have internal predecessors, (1878), 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) [2024-11-08 11:34:07,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1878 transitions. [2024-11-08 11:34:07,490 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 1878 transitions. Word has length 228 [2024-11-08 11:34:07,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:34:07,491 INFO L471 AbstractCegarLoop]: Abstraction has 1320 states and 1878 transitions. [2024-11-08 11:34:07,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2024-11-08 11:34:07,492 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 1878 transitions. [2024-11-08 11:34:07,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-08 11:34:07,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:34:07,498 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:34:07,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 11:34:07,499 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:34:07,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:34:07,499 INFO L85 PathProgramCache]: Analyzing trace with hash -324745580, now seen corresponding path program 1 times [2024-11-08 11:34:07,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:34:07,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873629255] [2024-11-08 11:34:07,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:34:07,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:34:07,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:34:07,697 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-08 11:34:07,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:34:07,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873629255] [2024-11-08 11:34:07,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873629255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:34:07,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:34:07,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:34:07,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791604742] [2024-11-08 11:34:07,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:34:07,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:34:07,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:34:07,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:34:07,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:34:07,699 INFO L87 Difference]: Start difference. First operand 1320 states and 1878 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 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) [2024-11-08 11:34:08,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:34:08,727 INFO L93 Difference]: Finished difference Result 3296 states and 4947 transitions. [2024-11-08 11:34:08,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:34:08,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 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) Word has length 231 [2024-11-08 11:34:08,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:34:08,734 INFO L225 Difference]: With dead ends: 3296 [2024-11-08 11:34:08,734 INFO L226 Difference]: Without dead ends: 1978 [2024-11-08 11:34:08,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:34:08,736 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 339 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:34:08,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 156 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 11:34:08,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2024-11-08 11:34:08,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1978. [2024-11-08 11:34:08,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1978 states, 1977 states have (on average 1.1335356600910471) internal successors, (2241), 1977 states have internal predecessors, (2241), 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) [2024-11-08 11:34:08,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1978 states to 1978 states and 2241 transitions. [2024-11-08 11:34:08,758 INFO L78 Accepts]: Start accepts. Automaton has 1978 states and 2241 transitions. Word has length 231 [2024-11-08 11:34:08,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:34:08,759 INFO L471 AbstractCegarLoop]: Abstraction has 1978 states and 2241 transitions. [2024-11-08 11:34:08,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 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) [2024-11-08 11:34:08,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1978 states and 2241 transitions. [2024-11-08 11:34:08,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2024-11-08 11:34:08,762 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:34:08,762 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:34:08,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 11:34:08,762 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:34:08,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:34:08,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1462404787, now seen corresponding path program 1 times [2024-11-08 11:34:08,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:34:08,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329041878] [2024-11-08 11:34:08,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:34:08,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:34:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:34:08,923 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 237 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-11-08 11:34:08,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:34:08,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329041878] [2024-11-08 11:34:08,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329041878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:34:08,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:34:08,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:34:08,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231117896] [2024-11-08 11:34:08,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:34:08,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:34:08,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:34:08,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:34:08,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:34:08,926 INFO L87 Difference]: Start difference. First operand 1978 states and 2241 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 2 states have internal predecessors, (217), 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) [2024-11-08 11:34:09,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:34:09,567 INFO L93 Difference]: Finished difference Result 3954 states and 4508 transitions. [2024-11-08 11:34:09,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:34:09,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 2 states have internal predecessors, (217), 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) Word has length 357 [2024-11-08 11:34:09,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:34:09,573 INFO L225 Difference]: With dead ends: 3954 [2024-11-08 11:34:09,573 INFO L226 Difference]: Without dead ends: 2307 [2024-11-08 11:34:09,576 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:34:09,579 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 262 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:34:09,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 31 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 11:34:09,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2307 states. [2024-11-08 11:34:09,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2307 to 2307. [2024-11-08 11:34:09,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2307 states, 2306 states have (on average 1.092801387684302) internal successors, (2520), 2306 states have internal predecessors, (2520), 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) [2024-11-08 11:34:09,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2307 states to 2307 states and 2520 transitions. [2024-11-08 11:34:09,604 INFO L78 Accepts]: Start accepts. Automaton has 2307 states and 2520 transitions. Word has length 357 [2024-11-08 11:34:09,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:34:09,605 INFO L471 AbstractCegarLoop]: Abstraction has 2307 states and 2520 transitions. [2024-11-08 11:34:09,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 2 states have internal predecessors, (217), 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) [2024-11-08 11:34:09,605 INFO L276 IsEmpty]: Start isEmpty. Operand 2307 states and 2520 transitions. [2024-11-08 11:34:09,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 616 [2024-11-08 11:34:09,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:34:09,612 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:34:09,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 11:34:09,612 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:34:09,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:34:09,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1707840837, now seen corresponding path program 1 times [2024-11-08 11:34:09,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:34:09,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726121229] [2024-11-08 11:34:09,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:34:09,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:34:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:34:10,028 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 645 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-08 11:34:10,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:34:10,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726121229] [2024-11-08 11:34:10,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726121229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:34:10,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:34:10,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:34:10,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734334924] [2024-11-08 11:34:10,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:34:10,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:34:10,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:34:10,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:34:10,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:34:10,033 INFO L87 Difference]: Start difference. First operand 2307 states and 2520 transitions. Second operand has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 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) [2024-11-08 11:34:10,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:34:10,680 INFO L93 Difference]: Finished difference Result 5928 states and 6509 transitions. [2024-11-08 11:34:10,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:34:10,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 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) Word has length 615 [2024-11-08 11:34:10,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:34:10,689 INFO L225 Difference]: With dead ends: 5928 [2024-11-08 11:34:10,689 INFO L226 Difference]: Without dead ends: 3952 [2024-11-08 11:34:10,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:34:10,692 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 219 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:34:10,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 428 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 11:34:10,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3952 states. [2024-11-08 11:34:10,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3952 to 3623. [2024-11-08 11:34:10,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3623 states, 3622 states have (on average 1.0668139149641083) internal successors, (3864), 3622 states have internal predecessors, (3864), 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) [2024-11-08 11:34:10,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3623 states to 3623 states and 3864 transitions. [2024-11-08 11:34:10,729 INFO L78 Accepts]: Start accepts. Automaton has 3623 states and 3864 transitions. Word has length 615 [2024-11-08 11:34:10,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:34:10,730 INFO L471 AbstractCegarLoop]: Abstraction has 3623 states and 3864 transitions. [2024-11-08 11:34:10,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 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) [2024-11-08 11:34:10,732 INFO L276 IsEmpty]: Start isEmpty. Operand 3623 states and 3864 transitions. [2024-11-08 11:34:10,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 679 [2024-11-08 11:34:10,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:34:10,736 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:34:10,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 11:34:10,737 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:34:10,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:34:10,738 INFO L85 PathProgramCache]: Analyzing trace with hash -276815383, now seen corresponding path program 1 times [2024-11-08 11:34:10,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:34:10,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831335371] [2024-11-08 11:34:10,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:34:10,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:34:10,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:34:11,182 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 719 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-11-08 11:34:11,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:34:11,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831335371] [2024-11-08 11:34:11,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831335371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:34:11,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:34:11,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:34:11,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17274011] [2024-11-08 11:34:11,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:34:11,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:34:11,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:34:11,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:34:11,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:34:11,185 INFO L87 Difference]: Start difference. First operand 3623 states and 3864 transitions. Second operand has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 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) [2024-11-08 11:34:11,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:34:11,845 INFO L93 Difference]: Finished difference Result 8560 states and 9237 transitions. [2024-11-08 11:34:11,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:34:11,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 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) Word has length 678 [2024-11-08 11:34:11,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:34:11,856 INFO L225 Difference]: With dead ends: 8560 [2024-11-08 11:34:11,856 INFO L226 Difference]: Without dead ends: 5268 [2024-11-08 11:34:11,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:34:11,860 INFO L432 NwaCegarLoop]: 426 mSDtfsCounter, 171 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:34:11,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 432 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 11:34:11,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5268 states. [2024-11-08 11:34:11,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5268 to 5268. [2024-11-08 11:34:11,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5268 states, 5267 states have (on average 1.0569584203531421) internal successors, (5567), 5267 states have internal predecessors, (5567), 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) [2024-11-08 11:34:11,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5268 states to 5268 states and 5567 transitions. [2024-11-08 11:34:11,916 INFO L78 Accepts]: Start accepts. Automaton has 5268 states and 5567 transitions. Word has length 678 [2024-11-08 11:34:11,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:34:11,917 INFO L471 AbstractCegarLoop]: Abstraction has 5268 states and 5567 transitions. [2024-11-08 11:34:11,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 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) [2024-11-08 11:34:11,917 INFO L276 IsEmpty]: Start isEmpty. Operand 5268 states and 5567 transitions. [2024-11-08 11:34:11,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2024-11-08 11:34:11,922 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:34:11,922 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:34:11,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 11:34:11,923 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:34:11,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:34:11,924 INFO L85 PathProgramCache]: Analyzing trace with hash 340514409, now seen corresponding path program 1 times [2024-11-08 11:34:11,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:34:11,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552363842] [2024-11-08 11:34:11,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:34:11,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:34:12,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:34:12,511 INFO L134 CoverageAnalysis]: Checked inductivity of 899 backedges. 460 proven. 0 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2024-11-08 11:34:12,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:34:12,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552363842] [2024-11-08 11:34:12,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552363842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:34:12,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:34:12,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:34:12,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368759003] [2024-11-08 11:34:12,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:34:12,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:34:12,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:34:12,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:34:12,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:34:12,515 INFO L87 Difference]: Start difference. First operand 5268 states and 5567 transitions. Second operand has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 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) [2024-11-08 11:34:13,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:34:13,124 INFO L93 Difference]: Finished difference Result 11850 states and 12603 transitions. [2024-11-08 11:34:13,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:34:13,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 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) Word has length 703 [2024-11-08 11:34:13,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:34:13,137 INFO L225 Difference]: With dead ends: 11850 [2024-11-08 11:34:13,138 INFO L226 Difference]: Without dead ends: 6913 [2024-11-08 11:34:13,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:34:13,142 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 235 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:34:13,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 79 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 11:34:13,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6913 states. [2024-11-08 11:34:13,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6913 to 6913. [2024-11-08 11:34:13,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6913 states, 6912 states have (on average 1.0477430555555556) internal successors, (7242), 6912 states have internal predecessors, (7242), 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) [2024-11-08 11:34:13,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6913 states to 6913 states and 7242 transitions. [2024-11-08 11:34:13,212 INFO L78 Accepts]: Start accepts. Automaton has 6913 states and 7242 transitions. Word has length 703 [2024-11-08 11:34:13,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:34:13,213 INFO L471 AbstractCegarLoop]: Abstraction has 6913 states and 7242 transitions. [2024-11-08 11:34:13,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 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) [2024-11-08 11:34:13,213 INFO L276 IsEmpty]: Start isEmpty. Operand 6913 states and 7242 transitions. [2024-11-08 11:34:13,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 976 [2024-11-08 11:34:13,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:34:13,221 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:34:13,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 11:34:13,222 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:34:13,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:34:13,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1897250751, now seen corresponding path program 1 times [2024-11-08 11:34:13,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:34:13,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619224031] [2024-11-08 11:34:13,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:34:13,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:34:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:34:13,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1896 backedges. 1056 proven. 125 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2024-11-08 11:34:13,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:34:13,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619224031] [2024-11-08 11:34:13,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619224031] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:34:13,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041349148] [2024-11-08 11:34:13,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:34:13,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:34:13,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:34:13,855 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) [2024-11-08 11:34:13,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 11:34:14,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:34:14,107 INFO L255 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 11:34:14,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:34:14,391 INFO L134 CoverageAnalysis]: Checked inductivity of 1896 backedges. 1003 proven. 0 refuted. 0 times theorem prover too weak. 893 trivial. 0 not checked. [2024-11-08 11:34:14,391 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 11:34:14,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041349148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:34:14,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 11:34:14,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-08 11:34:14,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724522622] [2024-11-08 11:34:14,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:34:14,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:34:14,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:34:14,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:34:14,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:34:14,394 INFO L87 Difference]: Start difference. First operand 6913 states and 7242 transitions. Second operand has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 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) [2024-11-08 11:34:15,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:34:15,034 INFO L93 Difference]: Finished difference Result 13495 states and 14151 transitions. [2024-11-08 11:34:15,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:34:15,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 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) Word has length 975 [2024-11-08 11:34:15,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:34:15,049 INFO L225 Difference]: With dead ends: 13495 [2024-11-08 11:34:15,049 INFO L226 Difference]: Without dead ends: 6913 [2024-11-08 11:34:15,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 979 GetRequests, 975 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:34:15,054 INFO L432 NwaCegarLoop]: 371 mSDtfsCounter, 225 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:34:15,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 377 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 11:34:15,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6913 states. [2024-11-08 11:34:15,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6913 to 6913. [2024-11-08 11:34:15,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6913 states, 6912 states have (on average 1.0419560185185186) internal successors, (7202), 6912 states have internal predecessors, (7202), 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) [2024-11-08 11:34:15,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6913 states to 6913 states and 7202 transitions. [2024-11-08 11:34:15,114 INFO L78 Accepts]: Start accepts. Automaton has 6913 states and 7202 transitions. Word has length 975 [2024-11-08 11:34:15,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:34:15,115 INFO L471 AbstractCegarLoop]: Abstraction has 6913 states and 7202 transitions. [2024-11-08 11:34:15,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 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) [2024-11-08 11:34:15,115 INFO L276 IsEmpty]: Start isEmpty. Operand 6913 states and 7202 transitions. [2024-11-08 11:34:15,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1147 [2024-11-08 11:34:15,124 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:34:15,125 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:34:15,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 11:34:15,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:34:15,326 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:34:15,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:34:15,326 INFO L85 PathProgramCache]: Analyzing trace with hash -328135248, now seen corresponding path program 1 times [2024-11-08 11:34:15,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:34:15,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824625763] [2024-11-08 11:34:15,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:34:15,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:34:15,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:34:16,316 INFO L134 CoverageAnalysis]: Checked inductivity of 2722 backedges. 1493 proven. 0 refuted. 0 times theorem prover too weak. 1229 trivial. 0 not checked. [2024-11-08 11:34:16,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:34:16,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824625763] [2024-11-08 11:34:16,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824625763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:34:16,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:34:16,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:34:16,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166677798] [2024-11-08 11:34:16,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:34:16,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:34:16,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:34:16,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:34:16,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:34:16,319 INFO L87 Difference]: Start difference. First operand 6913 states and 7202 transitions. Second operand has 3 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 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) [2024-11-08 11:34:17,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:34:17,048 INFO L93 Difference]: Finished difference Result 14811 states and 15467 transitions. [2024-11-08 11:34:17,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:34:17,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 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) Word has length 1146 [2024-11-08 11:34:17,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:34:17,075 INFO L225 Difference]: With dead ends: 14811 [2024-11-08 11:34:17,078 INFO L226 Difference]: Without dead ends: 8229 [2024-11-08 11:34:17,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:34:17,086 INFO L432 NwaCegarLoop]: 433 mSDtfsCounter, 224 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 11:34:17,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 439 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 11:34:17,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8229 states. [2024-11-08 11:34:17,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8229 to 7900. [2024-11-08 11:34:17,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7900 states, 7899 states have (on average 1.0375996961640714) internal successors, (8196), 7899 states have internal predecessors, (8196), 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) [2024-11-08 11:34:17,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7900 states to 7900 states and 8196 transitions. [2024-11-08 11:34:17,154 INFO L78 Accepts]: Start accepts. Automaton has 7900 states and 8196 transitions. Word has length 1146 [2024-11-08 11:34:17,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:34:17,155 INFO L471 AbstractCegarLoop]: Abstraction has 7900 states and 8196 transitions. [2024-11-08 11:34:17,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 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) [2024-11-08 11:34:17,155 INFO L276 IsEmpty]: Start isEmpty. Operand 7900 states and 8196 transitions. [2024-11-08 11:34:17,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1165 [2024-11-08 11:34:17,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:34:17,167 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:34:17,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 11:34:17,167 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:34:17,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:34:17,168 INFO L85 PathProgramCache]: Analyzing trace with hash -2097967269, now seen corresponding path program 1 times [2024-11-08 11:34:17,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:34:17,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938883390] [2024-11-08 11:34:17,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:34:17,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:34:17,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:34:17,722 INFO L134 CoverageAnalysis]: Checked inductivity of 2739 backedges. 1046 proven. 0 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2024-11-08 11:34:17,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:34:17,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938883390] [2024-11-08 11:34:17,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938883390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:34:17,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:34:17,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:34:17,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283677910] [2024-11-08 11:34:17,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:34:17,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:34:17,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:34:17,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:34:17,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:34:17,725 INFO L87 Difference]: Start difference. First operand 7900 states and 8196 transitions. Second operand has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 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) [2024-11-08 11:34:18,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:34:18,312 INFO L93 Difference]: Finished difference Result 16127 states and 16722 transitions. [2024-11-08 11:34:18,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:34:18,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 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) Word has length 1164 [2024-11-08 11:34:18,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:34:18,321 INFO L225 Difference]: With dead ends: 16127 [2024-11-08 11:34:18,321 INFO L226 Difference]: Without dead ends: 7900 [2024-11-08 11:34:18,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:34:18,325 INFO L432 NwaCegarLoop]: 405 mSDtfsCounter, 172 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 11:34:18,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 410 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 11:34:18,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7900 states. [2024-11-08 11:34:18,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7900 to 7571. [2024-11-08 11:34:18,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7571 states, 7570 states have (on average 1.0276089828269486) internal successors, (7779), 7570 states have internal predecessors, (7779), 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) [2024-11-08 11:34:18,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7571 states to 7571 states and 7779 transitions. [2024-11-08 11:34:18,372 INFO L78 Accepts]: Start accepts. Automaton has 7571 states and 7779 transitions. Word has length 1164 [2024-11-08 11:34:18,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:34:18,372 INFO L471 AbstractCegarLoop]: Abstraction has 7571 states and 7779 transitions. [2024-11-08 11:34:18,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 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) [2024-11-08 11:34:18,373 INFO L276 IsEmpty]: Start isEmpty. Operand 7571 states and 7779 transitions. [2024-11-08 11:34:18,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1320 [2024-11-08 11:34:18,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:34:18,385 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:34:18,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 11:34:18,386 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:34:18,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:34:18,386 INFO L85 PathProgramCache]: Analyzing trace with hash 230213051, now seen corresponding path program 1 times [2024-11-08 11:34:18,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:34:18,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697818592] [2024-11-08 11:34:18,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:34:18,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:34:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:34:19,974 INFO L134 CoverageAnalysis]: Checked inductivity of 2898 backedges. 1187 proven. 18 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2024-11-08 11:34:19,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:34:19,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697818592] [2024-11-08 11:34:19,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697818592] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:34:19,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111457825] [2024-11-08 11:34:19,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:34:19,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:34:19,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:34:19,977 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) [2024-11-08 11:34:19,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 11:34:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:34:20,243 INFO L255 TraceCheckSpWp]: Trace formula consists of 1536 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 11:34:20,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:34:22,243 INFO L134 CoverageAnalysis]: Checked inductivity of 2898 backedges. 1488 proven. 201 refuted. 0 times theorem prover too weak. 1209 trivial. 0 not checked. [2024-11-08 11:34:22,243 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 11:34:25,222 INFO L134 CoverageAnalysis]: Checked inductivity of 2898 backedges. 1488 proven. 201 refuted. 0 times theorem prover too weak. 1209 trivial. 0 not checked. [2024-11-08 11:34:25,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111457825] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 11:34:25,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 11:34:25,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 9 [2024-11-08 11:34:25,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207068117] [2024-11-08 11:34:25,223 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 11:34:25,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 11:34:25,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:34:25,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 11:34:25,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-08 11:34:25,229 INFO L87 Difference]: Start difference. First operand 7571 states and 7779 transitions. Second operand has 9 states, 9 states have (on average 202.88888888888889) internal successors, (1826), 9 states have internal predecessors, (1826), 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) [2024-11-08 11:34:28,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:34:28,867 INFO L93 Difference]: Finished difference Result 21412 states and 22039 transitions. [2024-11-08 11:34:28,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 11:34:28,868 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 202.88888888888889) internal successors, (1826), 9 states have internal predecessors, (1826), 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) Word has length 1319 [2024-11-08 11:34:28,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:34:28,883 INFO L225 Difference]: With dead ends: 21412 [2024-11-08 11:34:28,883 INFO L226 Difference]: Without dead ends: 13843 [2024-11-08 11:34:28,890 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2661 GetRequests, 2645 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2024-11-08 11:34:28,890 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 3027 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 7084 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3027 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 7534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 7084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-08 11:34:28,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3027 Valid, 97 Invalid, 7534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 7084 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-08 11:34:28,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13843 states. [2024-11-08 11:34:28,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13843 to 11519. [2024-11-08 11:34:28,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11519 states, 11518 states have (on average 1.0288244486890086) internal successors, (11850), 11518 states have internal predecessors, (11850), 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) [2024-11-08 11:34:28,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11519 states to 11519 states and 11850 transitions. [2024-11-08 11:34:28,979 INFO L78 Accepts]: Start accepts. Automaton has 11519 states and 11850 transitions. Word has length 1319 [2024-11-08 11:34:28,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:34:28,979 INFO L471 AbstractCegarLoop]: Abstraction has 11519 states and 11850 transitions. [2024-11-08 11:34:28,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 202.88888888888889) internal successors, (1826), 9 states have internal predecessors, (1826), 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) [2024-11-08 11:34:28,980 INFO L276 IsEmpty]: Start isEmpty. Operand 11519 states and 11850 transitions. [2024-11-08 11:34:28,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1503 [2024-11-08 11:34:28,997 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:34:28,997 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:34:29,012 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 11:34:29,198 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,SelfDestructingSolverStorable10 [2024-11-08 11:34:29,199 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:34:29,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:34:29,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1021374353, now seen corresponding path program 1 times [2024-11-08 11:34:29,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:34:29,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978572996] [2024-11-08 11:34:29,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:34:29,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:34:29,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:34:30,937 INFO L134 CoverageAnalysis]: Checked inductivity of 4258 backedges. 1912 proven. 156 refuted. 0 times theorem prover too weak. 2190 trivial. 0 not checked. [2024-11-08 11:34:30,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:34:30,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978572996] [2024-11-08 11:34:30,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978572996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:34:30,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381521438] [2024-11-08 11:34:30,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:34:30,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:34:30,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:34:30,941 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) [2024-11-08 11:34:30,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 11:34:31,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:34:31,301 INFO L255 TraceCheckSpWp]: Trace formula consists of 1729 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 11:34:31,315 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:34:31,501 INFO L134 CoverageAnalysis]: Checked inductivity of 4258 backedges. 1312 proven. 0 refuted. 0 times theorem prover too weak. 2946 trivial. 0 not checked. [2024-11-08 11:34:31,501 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 11:34:31,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381521438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:34:31,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 11:34:31,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-08 11:34:31,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749206281] [2024-11-08 11:34:31,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:34:31,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:34:31,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:34:31,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:34:31,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 11:34:31,504 INFO L87 Difference]: Start difference. First operand 11519 states and 11850 transitions. Second operand has 3 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 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) [2024-11-08 11:34:32,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:34:32,059 INFO L93 Difference]: Finished difference Result 24681 states and 25435 transitions. [2024-11-08 11:34:32,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:34:32,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 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) Word has length 1502 [2024-11-08 11:34:32,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:34:32,074 INFO L225 Difference]: With dead ends: 24681 [2024-11-08 11:34:32,075 INFO L226 Difference]: Without dead ends: 13164 [2024-11-08 11:34:32,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1506 GetRequests, 1501 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 11:34:32,085 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 180 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 11:34:32,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 33 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 11:34:32,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13164 states. [2024-11-08 11:34:32,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13164 to 12835. [2024-11-08 11:34:32,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12835 states, 12834 states have (on average 1.0312451301231105) internal successors, (13235), 12834 states have internal predecessors, (13235), 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) [2024-11-08 11:34:32,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12835 states to 12835 states and 13235 transitions. [2024-11-08 11:34:32,189 INFO L78 Accepts]: Start accepts. Automaton has 12835 states and 13235 transitions. Word has length 1502 [2024-11-08 11:34:32,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:34:32,190 INFO L471 AbstractCegarLoop]: Abstraction has 12835 states and 13235 transitions. [2024-11-08 11:34:32,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 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) [2024-11-08 11:34:32,190 INFO L276 IsEmpty]: Start isEmpty. Operand 12835 states and 13235 transitions. [2024-11-08 11:34:32,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1660 [2024-11-08 11:34:32,214 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:34:32,215 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:34:32,229 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 11:34:32,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:34:32,416 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:34:32,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:34:32,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1015306804, now seen corresponding path program 1 times [2024-11-08 11:34:32,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:34:32,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3475309] [2024-11-08 11:34:32,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:34:32,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:34:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:34:33,665 INFO L134 CoverageAnalysis]: Checked inductivity of 4527 backedges. 2134 proven. 0 refuted. 0 times theorem prover too weak. 2393 trivial. 0 not checked. [2024-11-08 11:34:33,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:34:33,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3475309] [2024-11-08 11:34:33,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3475309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:34:33,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:34:33,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:34:33,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431049971] [2024-11-08 11:34:33,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:34:33,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:34:33,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:34:33,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:34:33,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:34:33,668 INFO L87 Difference]: Start difference. First operand 12835 states and 13235 transitions. Second operand has 4 states, 4 states have (on average 181.75) internal successors, (727), 3 states have internal predecessors, (727), 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) [2024-11-08 11:34:34,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:34:34,514 INFO L93 Difference]: Finished difference Result 26326 states and 27133 transitions. [2024-11-08 11:34:34,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:34:34,514 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 181.75) internal successors, (727), 3 states have internal predecessors, (727), 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) Word has length 1659 [2024-11-08 11:34:34,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:34:34,527 INFO L225 Difference]: With dead ends: 26326 [2024-11-08 11:34:34,527 INFO L226 Difference]: Without dead ends: 13493 [2024-11-08 11:34:34,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:34:34,537 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 268 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 11:34:34,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 109 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 11:34:34,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13493 states. [2024-11-08 11:34:34,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13493 to 13493. [2024-11-08 11:34:34,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13493 states, 13492 states have (on average 1.0300177883190038) internal successors, (13897), 13492 states have internal predecessors, (13897), 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) [2024-11-08 11:34:34,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13493 states to 13493 states and 13897 transitions. [2024-11-08 11:34:34,632 INFO L78 Accepts]: Start accepts. Automaton has 13493 states and 13897 transitions. Word has length 1659 [2024-11-08 11:34:34,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:34:34,632 INFO L471 AbstractCegarLoop]: Abstraction has 13493 states and 13897 transitions. [2024-11-08 11:34:34,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 181.75) internal successors, (727), 3 states have internal predecessors, (727), 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) [2024-11-08 11:34:34,632 INFO L276 IsEmpty]: Start isEmpty. Operand 13493 states and 13897 transitions. [2024-11-08 11:34:34,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1723 [2024-11-08 11:34:34,652 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:34:34,652 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:34:34,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 11:34:34,653 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:34:34,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:34:34,653 INFO L85 PathProgramCache]: Analyzing trace with hash 748014137, now seen corresponding path program 1 times [2024-11-08 11:34:34,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:34:34,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490067834] [2024-11-08 11:34:34,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:34:34,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:34:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:34:36,725 INFO L134 CoverageAnalysis]: Checked inductivity of 4812 backedges. 3770 proven. 0 refuted. 0 times theorem prover too weak. 1042 trivial. 0 not checked. [2024-11-08 11:34:36,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:34:36,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490067834] [2024-11-08 11:34:36,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490067834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:34:36,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:34:36,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 11:34:36,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238609884] [2024-11-08 11:34:36,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:34:36,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 11:34:36,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:34:36,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 11:34:36,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-08 11:34:36,729 INFO L87 Difference]: Start difference. First operand 13493 states and 13897 transitions. Second operand has 8 states, 8 states have (on average 140.375) internal successors, (1123), 8 states have internal predecessors, (1123), 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) [2024-11-08 11:34:39,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:34:39,745 INFO L93 Difference]: Finished difference Result 36554 states and 37676 transitions. [2024-11-08 11:34:39,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 11:34:39,746 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 140.375) internal successors, (1123), 8 states have internal predecessors, (1123), 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) Word has length 1722 [2024-11-08 11:34:39,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:34:39,766 INFO L225 Difference]: With dead ends: 36554 [2024-11-08 11:34:39,766 INFO L226 Difference]: Without dead ends: 23721 [2024-11-08 11:34:39,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2024-11-08 11:34:39,772 INFO L432 NwaCegarLoop]: 416 mSDtfsCounter, 1141 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 6335 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1141 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 6376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 6335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-08 11:34:39,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1141 Valid, 787 Invalid, 6376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 6335 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-08 11:34:39,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23721 states. [2024-11-08 11:34:39,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23721 to 13164. [2024-11-08 11:34:39,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13164 states, 13163 states have (on average 1.0282610347185293) internal successors, (13535), 13163 states have internal predecessors, (13535), 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) [2024-11-08 11:34:39,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13164 states to 13164 states and 13535 transitions. [2024-11-08 11:34:39,897 INFO L78 Accepts]: Start accepts. Automaton has 13164 states and 13535 transitions. Word has length 1722 [2024-11-08 11:34:39,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:34:39,898 INFO L471 AbstractCegarLoop]: Abstraction has 13164 states and 13535 transitions. [2024-11-08 11:34:39,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 140.375) internal successors, (1123), 8 states have internal predecessors, (1123), 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) [2024-11-08 11:34:39,899 INFO L276 IsEmpty]: Start isEmpty. Operand 13164 states and 13535 transitions. [2024-11-08 11:34:39,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1727 [2024-11-08 11:34:39,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:34:39,926 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:34:39,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 11:34:39,926 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:34:39,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:34:39,927 INFO L85 PathProgramCache]: Analyzing trace with hash -2082984032, now seen corresponding path program 1 times [2024-11-08 11:34:39,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:34:39,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338392354] [2024-11-08 11:34:39,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:34:39,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:34:40,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:34:40,759 INFO L134 CoverageAnalysis]: Checked inductivity of 5684 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 5361 trivial. 0 not checked. [2024-11-08 11:34:40,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:34:40,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338392354] [2024-11-08 11:34:40,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338392354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:34:40,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:34:40,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:34:40,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395810337] [2024-11-08 11:34:40,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:34:40,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:34:40,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:34:40,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:34:40,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:34:40,762 INFO L87 Difference]: Start difference. First operand 13164 states and 13535 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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) [2024-11-08 11:34:41,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:34:41,317 INFO L93 Difference]: Finished difference Result 25997 states and 26736 transitions. [2024-11-08 11:34:41,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:34:41,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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) Word has length 1726 [2024-11-08 11:34:41,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:34:41,326 INFO L225 Difference]: With dead ends: 25997 [2024-11-08 11:34:41,326 INFO L226 Difference]: Without dead ends: 13164 [2024-11-08 11:34:41,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:34:41,332 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 295 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 11:34:41,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 428 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 11:34:41,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13164 states. [2024-11-08 11:34:41,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13164 to 13164. [2024-11-08 11:34:41,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13164 states, 13163 states have (on average 1.0239307148826255) internal successors, (13478), 13163 states have internal predecessors, (13478), 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) [2024-11-08 11:34:41,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13164 states to 13164 states and 13478 transitions. [2024-11-08 11:34:41,421 INFO L78 Accepts]: Start accepts. Automaton has 13164 states and 13478 transitions. Word has length 1726 [2024-11-08 11:34:41,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:34:41,422 INFO L471 AbstractCegarLoop]: Abstraction has 13164 states and 13478 transitions. [2024-11-08 11:34:41,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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) [2024-11-08 11:34:41,422 INFO L276 IsEmpty]: Start isEmpty. Operand 13164 states and 13478 transitions. [2024-11-08 11:34:41,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1840 [2024-11-08 11:34:41,441 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:34:41,442 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:34:41,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 11:34:41,442 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:34:41,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:34:41,443 INFO L85 PathProgramCache]: Analyzing trace with hash 767222329, now seen corresponding path program 1 times [2024-11-08 11:34:41,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:34:41,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191446450] [2024-11-08 11:34:41,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:34:41,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:34:41,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:34:42,752 INFO L134 CoverageAnalysis]: Checked inductivity of 6005 backedges. 3964 proven. 0 refuted. 0 times theorem prover too weak. 2041 trivial. 0 not checked. [2024-11-08 11:34:42,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:34:42,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191446450] [2024-11-08 11:34:42,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191446450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:34:42,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:34:42,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 11:34:42,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189923556] [2024-11-08 11:34:42,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:34:42,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 11:34:42,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:34:42,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 11:34:42,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:34:42,755 INFO L87 Difference]: Start difference. First operand 13164 states and 13478 transitions. Second operand has 6 states, 6 states have (on average 141.0) internal successors, (846), 6 states have internal predecessors, (846), 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) [2024-11-08 11:34:43,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:34:43,790 INFO L93 Difference]: Finished difference Result 25695 states and 26319 transitions. [2024-11-08 11:34:43,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 11:34:43,791 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 141.0) internal successors, (846), 6 states have internal predecessors, (846), 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) Word has length 1839 [2024-11-08 11:34:43,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:34:43,803 INFO L225 Difference]: With dead ends: 25695 [2024-11-08 11:34:43,803 INFO L226 Difference]: Without dead ends: 13164 [2024-11-08 11:34:43,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:34:43,810 INFO L432 NwaCegarLoop]: 410 mSDtfsCounter, 142 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 2166 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 2191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:34:43,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 432 Invalid, 2191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2166 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 11:34:43,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13164 states. [2024-11-08 11:34:43,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13164 to 13164. [2024-11-08 11:34:43,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13164 states, 13163 states have (on average 1.022715186507635) internal successors, (13462), 13163 states have internal predecessors, (13462), 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) [2024-11-08 11:34:43,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13164 states to 13164 states and 13462 transitions. [2024-11-08 11:34:43,895 INFO L78 Accepts]: Start accepts. Automaton has 13164 states and 13462 transitions. Word has length 1839 [2024-11-08 11:34:43,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:34:43,896 INFO L471 AbstractCegarLoop]: Abstraction has 13164 states and 13462 transitions. [2024-11-08 11:34:43,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 141.0) internal successors, (846), 6 states have internal predecessors, (846), 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) [2024-11-08 11:34:43,897 INFO L276 IsEmpty]: Start isEmpty. Operand 13164 states and 13462 transitions. [2024-11-08 11:34:43,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1884 [2024-11-08 11:34:43,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:34:43,919 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:34:43,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 11:34:43,919 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:34:43,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:34:43,920 INFO L85 PathProgramCache]: Analyzing trace with hash 2002899003, now seen corresponding path program 1 times [2024-11-08 11:34:43,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:34:43,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36139663] [2024-11-08 11:34:43,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:34:43,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:34:44,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:34:45,771 INFO L134 CoverageAnalysis]: Checked inductivity of 6005 backedges. 4095 proven. 90 refuted. 0 times theorem prover too weak. 1820 trivial. 0 not checked. [2024-11-08 11:34:45,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:34:45,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36139663] [2024-11-08 11:34:45,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36139663] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:34:45,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465787439] [2024-11-08 11:34:45,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:34:45,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:34:45,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:34:45,773 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) [2024-11-08 11:34:45,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 11:34:46,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:34:46,109 INFO L255 TraceCheckSpWp]: Trace formula consists of 2139 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 11:34:46,119 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:34:46,631 INFO L134 CoverageAnalysis]: Checked inductivity of 6005 backedges. 4113 proven. 0 refuted. 0 times theorem prover too weak. 1892 trivial. 0 not checked. [2024-11-08 11:34:46,631 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 11:34:46,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465787439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:34:46,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 11:34:46,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-08 11:34:46,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141909493] [2024-11-08 11:34:46,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:34:46,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:34:46,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:34:46,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:34:46,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:34:46,634 INFO L87 Difference]: Start difference. First operand 13164 states and 13462 transitions. Second operand has 3 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 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) [2024-11-08 11:34:47,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:34:47,169 INFO L93 Difference]: Finished difference Result 25668 states and 26260 transitions. [2024-11-08 11:34:47,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:34:47,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 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) Word has length 1883 [2024-11-08 11:34:47,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:34:47,179 INFO L225 Difference]: With dead ends: 25668 [2024-11-08 11:34:47,179 INFO L226 Difference]: Without dead ends: 13164 [2024-11-08 11:34:47,186 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1890 GetRequests, 1886 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:34:47,186 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 62 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 11:34:47,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 427 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 11:34:47,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13164 states. [2024-11-08 11:34:47,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13164 to 13164. [2024-11-08 11:34:47,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13164 states, 13163 states have (on average 1.0225632454607612) internal successors, (13460), 13163 states have internal predecessors, (13460), 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) [2024-11-08 11:34:47,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13164 states to 13164 states and 13460 transitions. [2024-11-08 11:34:47,270 INFO L78 Accepts]: Start accepts. Automaton has 13164 states and 13460 transitions. Word has length 1883 [2024-11-08 11:34:47,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:34:47,271 INFO L471 AbstractCegarLoop]: Abstraction has 13164 states and 13460 transitions. [2024-11-08 11:34:47,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 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) [2024-11-08 11:34:47,271 INFO L276 IsEmpty]: Start isEmpty. Operand 13164 states and 13460 transitions. [2024-11-08 11:34:47,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2116 [2024-11-08 11:34:47,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:34:47,293 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:34:47,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 11:34:47,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-08 11:34:47,494 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:34:47,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:34:47,495 INFO L85 PathProgramCache]: Analyzing trace with hash -966982635, now seen corresponding path program 1 times [2024-11-08 11:34:47,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:34:47,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341584035] [2024-11-08 11:34:47,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:34:47,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:34:47,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:34:51,170 INFO L134 CoverageAnalysis]: Checked inductivity of 7929 backedges. 3918 proven. 505 refuted. 0 times theorem prover too weak. 3506 trivial. 0 not checked. [2024-11-08 11:34:51,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:34:51,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341584035] [2024-11-08 11:34:51,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341584035] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:34:51,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175186472] [2024-11-08 11:34:51,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:34:51,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:34:51,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:34:51,172 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 11:34:51,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 11:34:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:34:51,555 INFO L255 TraceCheckSpWp]: Trace formula consists of 2413 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 11:34:51,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:34:51,681 INFO L134 CoverageAnalysis]: Checked inductivity of 7929 backedges. 4561 proven. 0 refuted. 0 times theorem prover too weak. 3368 trivial. 0 not checked. [2024-11-08 11:34:51,682 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 11:34:51,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175186472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:34:51,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 11:34:51,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-11-08 11:34:51,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216503206] [2024-11-08 11:34:51,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:34:51,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:34:51,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:34:51,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:34:51,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 11:34:51,684 INFO L87 Difference]: Start difference. First operand 13164 states and 13460 transitions. Second operand has 3 states, 3 states have (on average 228.0) internal successors, (684), 3 states have internal predecessors, (684), 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) [2024-11-08 11:34:52,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:34:52,272 INFO L93 Difference]: Finished difference Result 28958 states and 29640 transitions. [2024-11-08 11:34:52,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:34:52,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 228.0) internal successors, (684), 3 states have internal predecessors, (684), 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) Word has length 2115 [2024-11-08 11:34:52,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:34:52,284 INFO L225 Difference]: With dead ends: 28958 [2024-11-08 11:34:52,284 INFO L226 Difference]: Without dead ends: 16125 [2024-11-08 11:34:52,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2124 GetRequests, 2117 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 11:34:52,292 INFO L432 NwaCegarLoop]: 418 mSDtfsCounter, 221 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 11:34:52,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 424 Invalid, 838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 11:34:52,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16125 states. [2024-11-08 11:34:52,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16125 to 15796. [2024-11-08 11:34:52,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15796 states, 15795 states have (on average 1.0212092434314657) internal successors, (16130), 15795 states have internal predecessors, (16130), 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) [2024-11-08 11:34:52,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15796 states to 15796 states and 16130 transitions. [2024-11-08 11:34:52,468 INFO L78 Accepts]: Start accepts. Automaton has 15796 states and 16130 transitions. Word has length 2115 [2024-11-08 11:34:52,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:34:52,468 INFO L471 AbstractCegarLoop]: Abstraction has 15796 states and 16130 transitions. [2024-11-08 11:34:52,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 228.0) internal successors, (684), 3 states have internal predecessors, (684), 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) [2024-11-08 11:34:52,468 INFO L276 IsEmpty]: Start isEmpty. Operand 15796 states and 16130 transitions. [2024-11-08 11:34:52,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2147 [2024-11-08 11:34:52,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:34:52,494 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:34:52,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 11:34:52,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-08 11:34:52,695 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:34:52,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:34:52,696 INFO L85 PathProgramCache]: Analyzing trace with hash 561259036, now seen corresponding path program 1 times [2024-11-08 11:34:52,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:34:52,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502206575] [2024-11-08 11:34:52,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:34:52,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:34:52,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:34:56,190 INFO L134 CoverageAnalysis]: Checked inductivity of 8310 backedges. 4043 proven. 523 refuted. 0 times theorem prover too weak. 3744 trivial. 0 not checked. [2024-11-08 11:34:56,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:34:56,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502206575] [2024-11-08 11:34:56,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502206575] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:34:56,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411867376] [2024-11-08 11:34:56,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:34:56,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:34:56,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:34:56,192 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 11:34:56,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 11:34:56,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:34:56,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 2447 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 11:34:56,577 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:34:56,668 INFO L134 CoverageAnalysis]: Checked inductivity of 8310 backedges. 395 proven. 0 refuted. 0 times theorem prover too weak. 7915 trivial. 0 not checked. [2024-11-08 11:34:56,668 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 11:34:56,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411867376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:34:56,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 11:34:56,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-11-08 11:34:56,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105583644] [2024-11-08 11:34:56,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:34:56,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:34:56,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:34:56,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:34:56,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 11:34:56,671 INFO L87 Difference]: Start difference. First operand 15796 states and 16130 transitions. Second operand has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 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) [2024-11-08 11:34:57,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:34:57,271 INFO L93 Difference]: Finished difference Result 32246 states and 32958 transitions. [2024-11-08 11:34:57,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:34:57,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 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) Word has length 2146 [2024-11-08 11:34:57,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:34:57,273 INFO L225 Difference]: With dead ends: 32246 [2024-11-08 11:34:57,273 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 11:34:57,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2155 GetRequests, 2148 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 11:34:57,282 INFO L432 NwaCegarLoop]: 413 mSDtfsCounter, 295 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 11:34:57,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 418 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 11:34:57,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 11:34:57,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 11:34:57,283 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) [2024-11-08 11:34:57,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 11:34:57,283 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2146 [2024-11-08 11:34:57,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:34:57,283 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 11:34:57,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 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) [2024-11-08 11:34:57,283 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 11:34:57,284 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 11:34:57,286 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 11:34:57,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-08 11:34:57,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:34:57,489 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] [2024-11-08 11:34:57,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 11:34:58,521 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 11:34:58,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 11:34:58 BoogieIcfgContainer [2024-11-08 11:34:58,536 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 11:34:58,537 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 11:34:58,537 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 11:34:58,537 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 11:34:58,537 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:34:03" (3/4) ... [2024-11-08 11:34:58,539 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 11:34:58,563 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-08 11:34:58,565 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-08 11:34:58,566 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 11:34:58,567 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 11:34:58,715 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-08 11:34:58,716 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-08 11:34:58,716 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 11:34:58,717 INFO L158 Benchmark]: Toolchain (without parser) took 57972.59ms. Allocated memory was 190.8MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 150.7MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 93.6MB. Max. memory is 16.1GB. [2024-11-08 11:34:58,717 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 107.0MB. Free memory is still 77.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 11:34:58,718 INFO L158 Benchmark]: CACSL2BoogieTranslator took 672.56ms. Allocated memory is still 190.8MB. Free memory was 150.7MB in the beginning and 87.1MB in the end (delta: 63.6MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2024-11-08 11:34:58,718 INFO L158 Benchmark]: Boogie Procedure Inliner took 114.68ms. Allocated memory is still 190.8MB. Free memory was 87.1MB in the beginning and 63.0MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-08 11:34:58,718 INFO L158 Benchmark]: Boogie Preprocessor took 180.93ms. Allocated memory is still 190.8MB. Free memory was 63.0MB in the beginning and 121.6MB in the end (delta: -58.7MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2024-11-08 11:34:58,718 INFO L158 Benchmark]: RCFGBuilder took 1831.33ms. Allocated memory was 190.8MB in the beginning and 302.0MB in the end (delta: 111.1MB). Free memory was 121.6MB in the beginning and 153.3MB in the end (delta: -31.6MB). Peak memory consumption was 94.2MB. Max. memory is 16.1GB. [2024-11-08 11:34:58,718 INFO L158 Benchmark]: TraceAbstraction took 54985.61ms. Allocated memory was 302.0MB in the beginning and 2.1GB in the end (delta: 1.8GB). Free memory was 152.2MB in the beginning and 2.0GB in the end (delta: -1.8GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2024-11-08 11:34:58,721 INFO L158 Benchmark]: Witness Printer took 179.28ms. Allocated memory is still 2.1GB. Free memory was 2.0GB in the beginning and 1.9GB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-08 11:34:58,721 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 107.0MB. Free memory is still 77.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 672.56ms. Allocated memory is still 190.8MB. Free memory was 150.7MB in the beginning and 87.1MB in the end (delta: 63.6MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 114.68ms. Allocated memory is still 190.8MB. Free memory was 87.1MB in the beginning and 63.0MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 180.93ms. Allocated memory is still 190.8MB. Free memory was 63.0MB in the beginning and 121.6MB in the end (delta: -58.7MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1831.33ms. Allocated memory was 190.8MB in the beginning and 302.0MB in the end (delta: 111.1MB). Free memory was 121.6MB in the beginning and 153.3MB in the end (delta: -31.6MB). Peak memory consumption was 94.2MB. Max. memory is 16.1GB. * TraceAbstraction took 54985.61ms. Allocated memory was 302.0MB in the beginning and 2.1GB in the end (delta: 1.8GB). Free memory was 152.2MB in the beginning and 2.0GB in the end (delta: -1.8GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 179.28ms. Allocated memory is still 2.1GB. Free memory was 2.0GB in the beginning and 1.9GB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 131]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 396 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 53.9s, OverallIterations: 19, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 20.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8836 SdHoareTripleChecker+Valid, 18.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8836 mSDsluCounter, 6142 SdHoareTripleChecker+Invalid, 15.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 572 mSDsCounter, 2705 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29324 IncrementalHoareTripleChecker+Invalid, 32029 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2705 mSolverCounterUnsat, 5570 mSDtfsCounter, 29324 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11370 GetRequests, 11298 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15796occurred in iteration=18, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 19 MinimizatonAttempts, 14526 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 26.5s InterpolantComputationTime, 31986 NumberOfCodeBlocks, 31986 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 33279 ConstructedInterpolants, 0 QuantifiedInterpolants, 87978 SizeOfPredicates, 2 NumberOfNonLiveVariables, 11422 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 26 InterpolantComputations, 18 PerfectInterpolantSequences, 93490/95309 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1783]: Loop Invariant Derived loop invariant: ((((((((((((((((((a12 <= 5) && (a15 == 4)) && (158 <= a18)) && (a16 != 9)) && (a16 <= 11)) || ((a16 <= 8) && (a15 == 4))) || ((a15 <= 3) && (135 <= a18))) || (((a15 == 4) && (a12 == 6)) && (a16 <= 11))) || (((((((long long) a18 + 79) <= 0) && (a12 <= 5)) && (a15 == 4)) && (a16 != 9)) && (a16 <= 11))) || ((((((long long) a18 + 79) <= 0) && (a16 == 9)) && (a15 == 4)) && (5 == a12))) || ((a15 <= 3) && (7 == a12))) || (((a16 == 9) && (a15 == 4)) && (a12 == 8))) || (((a12 == 9) && (0 <= ((long long) 44 + a18))) && (a15 == 3))) || ((((((long long) a18 + 79) <= 0) && (a16 == 9)) && (5 == a12)) && (a15 == 3))) || ((((((long long) a18 + 79) <= 0) && (a12 == 9)) && (a16 == 9)) && (a15 == 4))) || ((a15 <= 3) && (a12 == 8))) || (((a16 == 9) && (a15 == 4)) && (7 == a12))) || (((a15 <= 3) && (a16 != 9)) && (((5 != a12) || (0 < ((long long) a18 + 156))) || (a16 != 12)))) RESULT: Ultimate proved your program to be correct! [2024-11-08 11:34:58,743 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE