./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+cfa-reducer.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 b86eed5380d57cac13df908fa4bd28a3c3af485a2a70f27e08920aaaec0ccb21 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 15:08:26,637 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 15:08:26,709 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 15:08:26,724 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 15:08:26,724 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 15:08:26,760 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 15:08:26,761 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 15:08:26,761 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 15:08:26,762 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 15:08:26,763 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 15:08:26,764 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 15:08:26,764 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 15:08:26,765 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 15:08:26,765 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 15:08:26,767 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 15:08:26,768 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 15:08:26,768 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 15:08:26,768 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 15:08:26,769 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 15:08:26,769 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 15:08:26,769 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 15:08:26,770 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 15:08:26,770 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 15:08:26,770 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 15:08:26,771 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 15:08:26,771 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 15:08:26,771 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 15:08:26,771 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 15:08:26,772 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 15:08:26,772 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 15:08:26,772 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 15:08:26,773 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 15:08:26,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:08:26,773 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 15:08:26,774 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 15:08:26,774 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 15:08:26,774 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 15:08:26,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 15:08:26,775 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 15:08:26,775 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 15:08:26,775 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 15:08:26,776 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 15:08:26,777 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b86eed5380d57cac13df908fa4bd28a3c3af485a2a70f27e08920aaaec0ccb21 [2024-11-18 15:08:27,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 15:08:27,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 15:08:27,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 15:08:27,063 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 15:08:27,064 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 15:08:27,065 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c [2024-11-18 15:08:28,820 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 15:08:29,095 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 15:08:29,096 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c [2024-11-18 15:08:29,109 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b62446aa/17963b09fd7544a59e84714d2dbdca89/FLAGac41f6def [2024-11-18 15:08:29,122 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b62446aa/17963b09fd7544a59e84714d2dbdca89 [2024-11-18 15:08:29,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 15:08:29,126 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 15:08:29,127 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 15:08:29,128 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 15:08:29,138 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 15:08:29,139 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:08:29" (1/1) ... [2024-11-18 15:08:29,140 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fb6f8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:08:29, skipping insertion in model container [2024-11-18 15:08:29,140 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:08:29" (1/1) ... [2024-11-18 15:08:29,178 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 15:08:29,424 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/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c[6696,6709] [2024-11-18 15:08:29,554 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:08:29,580 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 15:08:29,646 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/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c[6696,6709] [2024-11-18 15:08:29,660 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:08:29,681 INFO L204 MainTranslator]: Completed translation [2024-11-18 15:08:29,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:08:29 WrapperNode [2024-11-18 15:08:29,682 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 15:08:29,684 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 15:08:29,684 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 15:08:29,684 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 15:08:29,698 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:08:29" (1/1) ... [2024-11-18 15:08:29,712 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:08:29" (1/1) ... [2024-11-18 15:08:29,742 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 542 [2024-11-18 15:08:29,743 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 15:08:29,744 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 15:08:29,744 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 15:08:29,744 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 15:08:29,754 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:08:29" (1/1) ... [2024-11-18 15:08:29,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:08:29" (1/1) ... [2024-11-18 15:08:29,757 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:08:29" (1/1) ... [2024-11-18 15:08:29,771 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]. [2024-11-18 15:08:29,772 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:08:29" (1/1) ... [2024-11-18 15:08:29,772 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:08:29" (1/1) ... [2024-11-18 15:08:29,778 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:08:29" (1/1) ... [2024-11-18 15:08:29,783 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:08:29" (1/1) ... [2024-11-18 15:08:29,785 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:08:29" (1/1) ... [2024-11-18 15:08:29,786 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:08:29" (1/1) ... [2024-11-18 15:08:29,792 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 15:08:29,797 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 15:08:29,797 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 15:08:29,797 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 15:08:29,798 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:08:29" (1/1) ... [2024-11-18 15:08:29,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:08:29,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:08:29,840 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) [2024-11-18 15:08:29,843 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 [2024-11-18 15:08:29,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 15:08:29,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 15:08:29,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 15:08:29,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 15:08:29,994 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 15:08:29,997 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 15:08:30,495 INFO L? ?]: Removed 48 outVars from TransFormulas that were not future-live. [2024-11-18 15:08:30,496 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 15:08:30,512 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 15:08:30,513 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-18 15:08:30,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:08:30 BoogieIcfgContainer [2024-11-18 15:08:30,513 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 15:08:30,516 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 15:08:30,516 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 15:08:30,519 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 15:08:30,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:08:29" (1/3) ... [2024-11-18 15:08:30,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c68696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:08:30, skipping insertion in model container [2024-11-18 15:08:30,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:08:29" (2/3) ... [2024-11-18 15:08:30,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13c68696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:08:30, skipping insertion in model container [2024-11-18 15:08:30,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:08:30" (3/3) ... [2024-11-18 15:08:30,521 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+cfa-reducer.c [2024-11-18 15:08:30,535 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 15:08:30,537 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 15:08:30,596 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 15:08:30,603 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;@1f0db75f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 15:08:30,604 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 15:08:30,609 INFO L276 IsEmpty]: Start isEmpty. Operand has 116 states, 114 states have (on average 1.7456140350877194) internal successors, (199), 115 states have internal predecessors, (199), 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) [2024-11-18 15:08:30,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-18 15:08:30,621 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:08:30,622 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:08:30,623 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:08:30,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:08:30,627 INFO L85 PathProgramCache]: Analyzing trace with hash -866113193, now seen corresponding path program 1 times [2024-11-18 15:08:30,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:08:30,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867939553] [2024-11-18 15:08:30,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:08:30,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:08:30,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:08:31,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:08:31,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:08:31,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867939553] [2024-11-18 15:08:31,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867939553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:08:31,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:08:31,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:08:31,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007244385] [2024-11-18 15:08:31,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:08:31,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:08:31,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:08:31,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:08:31,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:08:31,133 INFO L87 Difference]: Start difference. First operand has 116 states, 114 states have (on average 1.7456140350877194) internal successors, (199), 115 states have internal predecessors, (199), 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 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2024-11-18 15:08:31,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:08:31,205 INFO L93 Difference]: Finished difference Result 254 states and 416 transitions. [2024-11-18 15:08:31,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:08:31,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 72 [2024-11-18 15:08:31,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:08:31,216 INFO L225 Difference]: With dead ends: 254 [2024-11-18 15:08:31,217 INFO L226 Difference]: Without dead ends: 175 [2024-11-18 15:08:31,221 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 [2024-11-18 15:08:31,224 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 140 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:08:31,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 407 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:08:31,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-18 15:08:31,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 173. [2024-11-18 15:08:31,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 172 states have (on average 1.4534883720930232) internal successors, (250), 172 states have internal predecessors, (250), 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) [2024-11-18 15:08:31,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 250 transitions. [2024-11-18 15:08:31,265 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 250 transitions. Word has length 72 [2024-11-18 15:08:31,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:08:31,265 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 250 transitions. [2024-11-18 15:08:31,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2024-11-18 15:08:31,266 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 250 transitions. [2024-11-18 15:08:31,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-18 15:08:31,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:08:31,267 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:08:31,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 15:08:31,268 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:08:31,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:08:31,269 INFO L85 PathProgramCache]: Analyzing trace with hash -566031041, now seen corresponding path program 1 times [2024-11-18 15:08:31,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:08:31,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123966429] [2024-11-18 15:08:31,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:08:31,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:08:31,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:08:31,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:08:31,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:08:31,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123966429] [2024-11-18 15:08:31,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123966429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:08:31,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:08:31,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:08:31,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724819448] [2024-11-18 15:08:31,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:08:31,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:08:31,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:08:31,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:08:31,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:08:31,503 INFO L87 Difference]: Start difference. First operand 173 states and 250 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2024-11-18 15:08:31,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:08:31,568 INFO L93 Difference]: Finished difference Result 417 states and 638 transitions. [2024-11-18 15:08:31,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:08:31,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 73 [2024-11-18 15:08:31,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:08:31,572 INFO L225 Difference]: With dead ends: 417 [2024-11-18 15:08:31,577 INFO L226 Difference]: Without dead ends: 287 [2024-11-18 15:08:31,578 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 [2024-11-18 15:08:31,579 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 96 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:08:31,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 350 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:08:31,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-11-18 15:08:31,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 285. [2024-11-18 15:08:31,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 284 states have (on average 1.5070422535211268) internal successors, (428), 284 states have internal predecessors, (428), 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) [2024-11-18 15:08:31,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 428 transitions. [2024-11-18 15:08:31,627 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 428 transitions. Word has length 73 [2024-11-18 15:08:31,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:08:31,627 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 428 transitions. [2024-11-18 15:08:31,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2024-11-18 15:08:31,628 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 428 transitions. [2024-11-18 15:08:31,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-18 15:08:31,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:08:31,633 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:08:31,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 15:08:31,634 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:08:31,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:08:31,637 INFO L85 PathProgramCache]: Analyzing trace with hash -739923133, now seen corresponding path program 1 times [2024-11-18 15:08:31,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:08:31,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701378119] [2024-11-18 15:08:31,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:08:31,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:08:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:08:31,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:08:31,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:08:31,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701378119] [2024-11-18 15:08:31,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701378119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:08:31,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:08:31,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:08:31,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734983115] [2024-11-18 15:08:31,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:08:31,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:08:31,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:08:31,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:08:31,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:08:31,856 INFO L87 Difference]: Start difference. First operand 285 states and 428 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2024-11-18 15:08:31,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:08:31,903 INFO L93 Difference]: Finished difference Result 737 states and 1146 transitions. [2024-11-18 15:08:31,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:08:31,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 74 [2024-11-18 15:08:31,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:08:31,911 INFO L225 Difference]: With dead ends: 737 [2024-11-18 15:08:31,911 INFO L226 Difference]: Without dead ends: 495 [2024-11-18 15:08:31,913 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 [2024-11-18 15:08:31,914 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 91 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:08:31,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 346 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:08:31,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-11-18 15:08:31,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 493. [2024-11-18 15:08:31,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 492 states have (on average 1.5365853658536586) internal successors, (756), 492 states have internal predecessors, (756), 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) [2024-11-18 15:08:31,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 756 transitions. [2024-11-18 15:08:31,951 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 756 transitions. Word has length 74 [2024-11-18 15:08:31,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:08:31,952 INFO L471 AbstractCegarLoop]: Abstraction has 493 states and 756 transitions. [2024-11-18 15:08:31,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2024-11-18 15:08:31,952 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 756 transitions. [2024-11-18 15:08:31,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-18 15:08:31,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:08:31,956 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:08:31,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 15:08:31,957 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:08:31,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:08:31,957 INFO L85 PathProgramCache]: Analyzing trace with hash 330068461, now seen corresponding path program 1 times [2024-11-18 15:08:31,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:08:31,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307474685] [2024-11-18 15:08:31,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:08:31,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:08:31,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:08:32,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:08:32,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:08:32,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307474685] [2024-11-18 15:08:32,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307474685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:08:32,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:08:32,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:08:32,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338769288] [2024-11-18 15:08:32,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:08:32,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:08:32,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:08:32,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:08:32,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:08:32,068 INFO L87 Difference]: Start difference. First operand 493 states and 756 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2024-11-18 15:08:32,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:08:32,090 INFO L93 Difference]: Finished difference Result 1329 states and 2078 transitions. [2024-11-18 15:08:32,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:08:32,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2024-11-18 15:08:32,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:08:32,095 INFO L225 Difference]: With dead ends: 1329 [2024-11-18 15:08:32,095 INFO L226 Difference]: Without dead ends: 879 [2024-11-18 15:08:32,096 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 [2024-11-18 15:08:32,100 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 86 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:08:32,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 342 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:08:32,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2024-11-18 15:08:32,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 877. [2024-11-18 15:08:32,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 876 states have (on average 1.547945205479452) internal successors, (1356), 876 states have internal predecessors, (1356), 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) [2024-11-18 15:08:32,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1356 transitions. [2024-11-18 15:08:32,128 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1356 transitions. Word has length 75 [2024-11-18 15:08:32,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:08:32,129 INFO L471 AbstractCegarLoop]: Abstraction has 877 states and 1356 transitions. [2024-11-18 15:08:32,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2024-11-18 15:08:32,129 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1356 transitions. [2024-11-18 15:08:32,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-18 15:08:32,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:08:32,133 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:08:32,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 15:08:32,134 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:08:32,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:08:32,134 INFO L85 PathProgramCache]: Analyzing trace with hash -298149753, now seen corresponding path program 1 times [2024-11-18 15:08:32,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:08:32,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521016031] [2024-11-18 15:08:32,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:08:32,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:08:32,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:08:32,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:08:32,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:08:32,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521016031] [2024-11-18 15:08:32,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521016031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:08:32,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:08:32,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:08:32,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331619743] [2024-11-18 15:08:32,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:08:32,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:08:32,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:08:32,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:08:32,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:08:32,273 INFO L87 Difference]: Start difference. First operand 877 states and 1356 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2024-11-18 15:08:32,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:08:32,323 INFO L93 Difference]: Finished difference Result 2417 states and 3774 transitions. [2024-11-18 15:08:32,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:08:32,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 76 [2024-11-18 15:08:32,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:08:32,331 INFO L225 Difference]: With dead ends: 2417 [2024-11-18 15:08:32,331 INFO L226 Difference]: Without dead ends: 1583 [2024-11-18 15:08:32,333 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 [2024-11-18 15:08:32,334 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 81 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:08:32,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 338 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:08:32,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1583 states. [2024-11-18 15:08:32,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1583 to 1581. [2024-11-18 15:08:32,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1580 states have (on average 1.5468354430379747) internal successors, (2444), 1580 states have internal predecessors, (2444), 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) [2024-11-18 15:08:32,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2444 transitions. [2024-11-18 15:08:32,368 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2444 transitions. Word has length 76 [2024-11-18 15:08:32,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:08:32,369 INFO L471 AbstractCegarLoop]: Abstraction has 1581 states and 2444 transitions. [2024-11-18 15:08:32,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2024-11-18 15:08:32,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2444 transitions. [2024-11-18 15:08:32,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-18 15:08:32,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:08:32,372 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:08:32,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 15:08:32,372 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:08:32,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:08:32,373 INFO L85 PathProgramCache]: Analyzing trace with hash -2012894605, now seen corresponding path program 1 times [2024-11-18 15:08:32,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:08:32,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483434209] [2024-11-18 15:08:32,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:08:32,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:08:32,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:08:32,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:08:32,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:08:32,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483434209] [2024-11-18 15:08:32,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483434209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:08:32,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:08:32,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:08:32,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206202775] [2024-11-18 15:08:32,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:08:32,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:08:32,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:08:32,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:08:32,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:08:32,483 INFO L87 Difference]: Start difference. First operand 1581 states and 2444 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2024-11-18 15:08:32,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:08:32,515 INFO L93 Difference]: Finished difference Result 4401 states and 6830 transitions. [2024-11-18 15:08:32,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:08:32,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 77 [2024-11-18 15:08:32,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:08:32,526 INFO L225 Difference]: With dead ends: 4401 [2024-11-18 15:08:32,526 INFO L226 Difference]: Without dead ends: 2863 [2024-11-18 15:08:32,529 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 [2024-11-18 15:08:32,530 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 76 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:08:32,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 334 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:08:32,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2863 states. [2024-11-18 15:08:32,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2863 to 2861. [2024-11-18 15:08:32,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2861 states, 2860 states have (on average 1.5370629370629372) internal successors, (4396), 2860 states have internal predecessors, (4396), 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) [2024-11-18 15:08:32,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2861 states to 2861 states and 4396 transitions. [2024-11-18 15:08:32,572 INFO L78 Accepts]: Start accepts. Automaton has 2861 states and 4396 transitions. Word has length 77 [2024-11-18 15:08:32,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:08:32,573 INFO L471 AbstractCegarLoop]: Abstraction has 2861 states and 4396 transitions. [2024-11-18 15:08:32,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2024-11-18 15:08:32,573 INFO L276 IsEmpty]: Start isEmpty. Operand 2861 states and 4396 transitions. [2024-11-18 15:08:32,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-18 15:08:32,573 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:08:32,573 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:08:32,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 15:08:32,574 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:08:32,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:08:32,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1910583587, now seen corresponding path program 1 times [2024-11-18 15:08:32,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:08:32,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054226461] [2024-11-18 15:08:32,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:08:32,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:08:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:08:32,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:08:32,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:08:32,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054226461] [2024-11-18 15:08:32,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054226461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:08:32,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:08:32,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 15:08:32,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062696165] [2024-11-18 15:08:32,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:08:32,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 15:08:32,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:08:32,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 15:08:32,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 15:08:32,781 INFO L87 Difference]: Start difference. First operand 2861 states and 4396 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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) [2024-11-18 15:08:33,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:08:33,339 INFO L93 Difference]: Finished difference Result 36677 states and 56632 transitions. [2024-11-18 15:08:33,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-18 15:08:33,344 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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 78 [2024-11-18 15:08:33,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:08:33,496 INFO L225 Difference]: With dead ends: 36677 [2024-11-18 15:08:33,496 INFO L226 Difference]: Without dead ends: 33859 [2024-11-18 15:08:33,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-18 15:08:33,526 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 1642 mSDsluCounter, 3118 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1642 SdHoareTripleChecker+Valid, 3268 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 15:08:33,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1642 Valid, 3268 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 15:08:33,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33859 states. [2024-11-18 15:08:34,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33859 to 5677. [2024-11-18 15:08:34,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5677 states, 5676 states have (on average 1.518675123326286) internal successors, (8620), 5676 states have internal predecessors, (8620), 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) [2024-11-18 15:08:34,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5677 states to 5677 states and 8620 transitions. [2024-11-18 15:08:34,041 INFO L78 Accepts]: Start accepts. Automaton has 5677 states and 8620 transitions. Word has length 78 [2024-11-18 15:08:34,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:08:34,042 INFO L471 AbstractCegarLoop]: Abstraction has 5677 states and 8620 transitions. [2024-11-18 15:08:34,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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) [2024-11-18 15:08:34,042 INFO L276 IsEmpty]: Start isEmpty. Operand 5677 states and 8620 transitions. [2024-11-18 15:08:34,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 15:08:34,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:08:34,044 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:08:34,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 15:08:34,045 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:08:34,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:08:34,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1197972063, now seen corresponding path program 1 times [2024-11-18 15:08:34,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:08:34,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579223768] [2024-11-18 15:08:34,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:08:34,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:08:34,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:08:34,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:08:34,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:08:34,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579223768] [2024-11-18 15:08:34,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579223768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:08:34,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:08:34,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 15:08:34,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388483819] [2024-11-18 15:08:34,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:08:34,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 15:08:34,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:08:34,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 15:08:34,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 15:08:34,142 INFO L87 Difference]: Start difference. First operand 5677 states and 8620 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2024-11-18 15:08:34,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:08:34,197 INFO L93 Difference]: Finished difference Result 14035 states and 21328 transitions. [2024-11-18 15:08:34,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 15:08:34,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 80 [2024-11-18 15:08:34,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:08:34,214 INFO L225 Difference]: With dead ends: 14035 [2024-11-18 15:08:34,215 INFO L226 Difference]: Without dead ends: 8401 [2024-11-18 15:08:34,223 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 [2024-11-18 15:08:34,226 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 67 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:08:34,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 298 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:08:34,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8401 states. [2024-11-18 15:08:34,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8401 to 8399. [2024-11-18 15:08:34,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8399 states, 8398 states have (on average 1.506787330316742) internal successors, (12654), 8398 states have internal predecessors, (12654), 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) [2024-11-18 15:08:34,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8399 states to 8399 states and 12654 transitions. [2024-11-18 15:08:34,475 INFO L78 Accepts]: Start accepts. Automaton has 8399 states and 12654 transitions. Word has length 80 [2024-11-18 15:08:34,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:08:34,475 INFO L471 AbstractCegarLoop]: Abstraction has 8399 states and 12654 transitions. [2024-11-18 15:08:34,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2024-11-18 15:08:34,476 INFO L276 IsEmpty]: Start isEmpty. Operand 8399 states and 12654 transitions. [2024-11-18 15:08:34,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 15:08:34,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:08:34,476 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:08:34,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 15:08:34,477 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:08:34,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:08:34,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1218974718, now seen corresponding path program 1 times [2024-11-18 15:08:34,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:08:34,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848311401] [2024-11-18 15:08:34,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:08:34,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:08:34,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:08:34,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:08:34,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:08:34,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848311401] [2024-11-18 15:08:34,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848311401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:08:34,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:08:34,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 15:08:34,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986283079] [2024-11-18 15:08:34,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:08:34,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 15:08:34,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:08:34,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 15:08:34,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-18 15:08:34,780 INFO L87 Difference]: Start difference. First operand 8399 states and 12654 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 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) [2024-11-18 15:08:35,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:08:35,003 INFO L93 Difference]: Finished difference Result 16755 states and 25264 transitions. [2024-11-18 15:08:35,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 15:08:35,004 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 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 80 [2024-11-18 15:08:35,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:08:35,016 INFO L225 Difference]: With dead ends: 16755 [2024-11-18 15:08:35,016 INFO L226 Difference]: Without dead ends: 8401 [2024-11-18 15:08:35,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-18 15:08:35,025 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 454 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:08:35,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 684 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:08:35,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8401 states. [2024-11-18 15:08:35,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8401 to 8399. [2024-11-18 15:08:35,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8399 states, 8398 states have (on average 1.4953560371517027) internal successors, (12558), 8398 states have internal predecessors, (12558), 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) [2024-11-18 15:08:35,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8399 states to 8399 states and 12558 transitions. [2024-11-18 15:08:35,183 INFO L78 Accepts]: Start accepts. Automaton has 8399 states and 12558 transitions. Word has length 80 [2024-11-18 15:08:35,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:08:35,183 INFO L471 AbstractCegarLoop]: Abstraction has 8399 states and 12558 transitions. [2024-11-18 15:08:35,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 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) [2024-11-18 15:08:35,183 INFO L276 IsEmpty]: Start isEmpty. Operand 8399 states and 12558 transitions. [2024-11-18 15:08:35,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-18 15:08:35,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:08:35,184 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:08:35,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 15:08:35,184 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:08:35,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:08:35,185 INFO L85 PathProgramCache]: Analyzing trace with hash -868398721, now seen corresponding path program 1 times [2024-11-18 15:08:35,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:08:35,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553439881] [2024-11-18 15:08:35,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:08:35,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:08:35,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:08:35,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:08:35,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:08:35,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553439881] [2024-11-18 15:08:35,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553439881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:08:35,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:08:35,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:08:35,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985007422] [2024-11-18 15:08:35,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:08:35,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:08:35,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:08:35,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:08:35,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:08:35,287 INFO L87 Difference]: Start difference. First operand 8399 states and 12558 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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) [2024-11-18 15:08:35,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:08:35,486 INFO L93 Difference]: Finished difference Result 22387 states and 33584 transitions. [2024-11-18 15:08:35,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:08:35,487 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 81 [2024-11-18 15:08:35,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:08:35,506 INFO L225 Difference]: With dead ends: 22387 [2024-11-18 15:08:35,506 INFO L226 Difference]: Without dead ends: 14033 [2024-11-18 15:08:35,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:08:35,515 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 626 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:08:35,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 156 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:08:35,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14033 states. [2024-11-18 15:08:35,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14033 to 14031. [2024-11-18 15:08:35,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14031 states, 14030 states have (on average 1.4926585887384176) internal successors, (20942), 14030 states have internal predecessors, (20942), 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) [2024-11-18 15:08:35,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14031 states to 14031 states and 20942 transitions. [2024-11-18 15:08:35,741 INFO L78 Accepts]: Start accepts. Automaton has 14031 states and 20942 transitions. Word has length 81 [2024-11-18 15:08:35,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:08:35,742 INFO L471 AbstractCegarLoop]: Abstraction has 14031 states and 20942 transitions. [2024-11-18 15:08:35,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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) [2024-11-18 15:08:35,742 INFO L276 IsEmpty]: Start isEmpty. Operand 14031 states and 20942 transitions. [2024-11-18 15:08:35,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-18 15:08:35,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:08:35,743 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:08:35,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 15:08:35,744 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:08:35,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:08:35,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1685151460, now seen corresponding path program 1 times [2024-11-18 15:08:35,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:08:35,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109191721] [2024-11-18 15:08:35,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:08:35,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:08:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:08:35,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:08:35,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:08:35,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109191721] [2024-11-18 15:08:35,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109191721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:08:35,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:08:35,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:08:35,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344607223] [2024-11-18 15:08:35,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:08:35,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:08:35,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:08:35,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:08:35,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:08:35,892 INFO L87 Difference]: Start difference. First operand 14031 states and 20942 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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) [2024-11-18 15:08:36,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:08:36,052 INFO L93 Difference]: Finished difference Result 28017 states and 41839 transitions. [2024-11-18 15:08:36,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:08:36,053 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 81 [2024-11-18 15:08:36,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:08:36,083 INFO L225 Difference]: With dead ends: 28017 [2024-11-18 15:08:36,083 INFO L226 Difference]: Without dead ends: 14031 [2024-11-18 15:08:36,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:08:36,103 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 353 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:08:36,103 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 130 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:08:36,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14031 states. [2024-11-18 15:08:36,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14031 to 14031. [2024-11-18 15:08:36,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14031 states, 14030 states have (on average 1.4812544547398432) internal successors, (20782), 14030 states have internal predecessors, (20782), 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) [2024-11-18 15:08:36,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14031 states to 14031 states and 20782 transitions. [2024-11-18 15:08:36,471 INFO L78 Accepts]: Start accepts. Automaton has 14031 states and 20782 transitions. Word has length 81 [2024-11-18 15:08:36,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:08:36,472 INFO L471 AbstractCegarLoop]: Abstraction has 14031 states and 20782 transitions. [2024-11-18 15:08:36,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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) [2024-11-18 15:08:36,473 INFO L276 IsEmpty]: Start isEmpty. Operand 14031 states and 20782 transitions. [2024-11-18 15:08:36,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-18 15:08:36,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:08:36,473 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:08:36,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 15:08:36,474 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:08:36,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:08:36,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1744283447, now seen corresponding path program 1 times [2024-11-18 15:08:36,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:08:36,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220593278] [2024-11-18 15:08:36,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:08:36,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:08:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:08:36,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:08:36,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:08:36,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220593278] [2024-11-18 15:08:36,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220593278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:08:36,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:08:36,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 15:08:36,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910374956] [2024-11-18 15:08:36,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:08:36,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:08:36,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:08:36,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:08:36,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:08:36,659 INFO L87 Difference]: Start difference. First operand 14031 states and 20782 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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) [2024-11-18 15:08:37,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:08:37,014 INFO L93 Difference]: Finished difference Result 28017 states and 41519 transitions. [2024-11-18 15:08:37,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:08:37,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 81 [2024-11-18 15:08:37,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:08:37,046 INFO L225 Difference]: With dead ends: 28017 [2024-11-18 15:08:37,047 INFO L226 Difference]: Without dead ends: 14031 [2024-11-18 15:08:37,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 15:08:37,065 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 376 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 15:08:37,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 114 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 15:08:37,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14031 states. [2024-11-18 15:08:37,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14031 to 14031. [2024-11-18 15:08:37,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14031 states, 14030 states have (on average 1.4698503207412688) internal successors, (20622), 14030 states have internal predecessors, (20622), 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) [2024-11-18 15:08:37,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14031 states to 14031 states and 20622 transitions. [2024-11-18 15:08:37,484 INFO L78 Accepts]: Start accepts. Automaton has 14031 states and 20622 transitions. Word has length 81 [2024-11-18 15:08:37,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:08:37,484 INFO L471 AbstractCegarLoop]: Abstraction has 14031 states and 20622 transitions. [2024-11-18 15:08:37,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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) [2024-11-18 15:08:37,485 INFO L276 IsEmpty]: Start isEmpty. Operand 14031 states and 20622 transitions. [2024-11-18 15:08:37,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-18 15:08:37,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:08:37,485 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:08:37,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 15:08:37,485 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:08:37,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:08:37,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1787820142, now seen corresponding path program 1 times [2024-11-18 15:08:37,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:08:37,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67019575] [2024-11-18 15:08:37,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:08:37,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:08:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:08:38,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:08:38,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:08:38,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67019575] [2024-11-18 15:08:38,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67019575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:08:38,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:08:38,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 15:08:38,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414785400] [2024-11-18 15:08:38,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:08:38,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 15:08:38,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:08:38,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 15:08:38,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:08:38,127 INFO L87 Difference]: Start difference. First operand 14031 states and 20622 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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) [2024-11-18 15:08:38,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:08:38,183 INFO L93 Difference]: Finished difference Result 14545 states and 21391 transitions. [2024-11-18 15:08:38,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 15:08:38,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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 81 [2024-11-18 15:08:38,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:08:38,253 INFO L225 Difference]: With dead ends: 14545 [2024-11-18 15:08:38,253 INFO L226 Difference]: Without dead ends: 14543 [2024-11-18 15:08:38,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 15:08:38,256 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 0 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 15:08:38,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 584 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:08:38,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14543 states. [2024-11-18 15:08:38,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14543 to 14543. [2024-11-18 15:08:38,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14543 states, 14542 states have (on average 1.451107137945262) internal successors, (21102), 14542 states have internal predecessors, (21102), 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) [2024-11-18 15:08:38,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14543 states to 14543 states and 21102 transitions. [2024-11-18 15:08:38,393 INFO L78 Accepts]: Start accepts. Automaton has 14543 states and 21102 transitions. Word has length 81 [2024-11-18 15:08:38,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:08:38,393 INFO L471 AbstractCegarLoop]: Abstraction has 14543 states and 21102 transitions. [2024-11-18 15:08:38,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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) [2024-11-18 15:08:38,394 INFO L276 IsEmpty]: Start isEmpty. Operand 14543 states and 21102 transitions. [2024-11-18 15:08:38,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-18 15:08:38,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:08:38,399 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 15:08:38,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 15:08:38,399 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:08:38,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:08:38,400 INFO L85 PathProgramCache]: Analyzing trace with hash 333029362, now seen corresponding path program 1 times [2024-11-18 15:08:38,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:08:38,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329564647] [2024-11-18 15:08:38,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:08:38,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:08:38,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:08:38,623 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 15:08:38,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:08:38,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329564647] [2024-11-18 15:08:38,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329564647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:08:38,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:08:38,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 15:08:38,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433207131] [2024-11-18 15:08:38,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:08:38,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 15:08:38,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:08:38,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 15:08:38,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 15:08:38,625 INFO L87 Difference]: Start difference. First operand 14543 states and 21102 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 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) [2024-11-18 15:08:39,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:08:39,035 INFO L93 Difference]: Finished difference Result 103357 states and 150069 transitions. [2024-11-18 15:08:39,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 15:08:39,036 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 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 111 [2024-11-18 15:08:39,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:08:39,145 INFO L225 Difference]: With dead ends: 103357 [2024-11-18 15:08:39,145 INFO L226 Difference]: Without dead ends: 91579 [2024-11-18 15:08:39,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 15:08:39,174 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 1355 mSDsluCounter, 1397 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1355 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:08:39,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1355 Valid, 1656 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:08:39,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91579 states. [2024-11-18 15:08:40,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91579 to 27695. [2024-11-18 15:08:40,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27695 states, 27694 states have (on average 1.4471726727811078) internal successors, (40078), 27694 states have internal predecessors, (40078), 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) [2024-11-18 15:08:40,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27695 states to 27695 states and 40078 transitions. [2024-11-18 15:08:40,332 INFO L78 Accepts]: Start accepts. Automaton has 27695 states and 40078 transitions. Word has length 111 [2024-11-18 15:08:40,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:08:40,332 INFO L471 AbstractCegarLoop]: Abstraction has 27695 states and 40078 transitions. [2024-11-18 15:08:40,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 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) [2024-11-18 15:08:40,333 INFO L276 IsEmpty]: Start isEmpty. Operand 27695 states and 40078 transitions. [2024-11-18 15:08:40,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-18 15:08:40,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:08:40,340 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 15:08:40,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 15:08:40,340 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:08:40,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:08:40,341 INFO L85 PathProgramCache]: Analyzing trace with hash -317771784, now seen corresponding path program 1 times [2024-11-18 15:08:40,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:08:40,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304665083] [2024-11-18 15:08:40,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:08:40,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:08:40,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:08:40,768 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-18 15:08:40,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:08:40,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304665083] [2024-11-18 15:08:40,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304665083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:08:40,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:08:40,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 15:08:40,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619235595] [2024-11-18 15:08:40,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:08:40,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 15:08:40,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:08:40,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 15:08:40,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 15:08:40,770 INFO L87 Difference]: Start difference. First operand 27695 states and 40078 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 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) [2024-11-18 15:08:41,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:08:41,522 INFO L93 Difference]: Finished difference Result 117853 states and 170997 transitions. [2024-11-18 15:08:41,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 15:08:41,523 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 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 111 [2024-11-18 15:08:41,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:08:41,666 INFO L225 Difference]: With dead ends: 117853 [2024-11-18 15:08:41,666 INFO L226 Difference]: Without dead ends: 103355 [2024-11-18 15:08:41,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 15:08:41,693 INFO L432 NwaCegarLoop]: 257 mSDtfsCounter, 1356 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1356 SdHoareTripleChecker+Valid, 1599 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:08:41,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1356 Valid, 1599 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:08:41,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103355 states. [2024-11-18 15:08:42,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103355 to 48079. [2024-11-18 15:08:42,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48079 states, 48078 states have (on average 1.44327967053538) internal successors, (69390), 48078 states have internal predecessors, (69390), 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) [2024-11-18 15:08:43,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48079 states to 48079 states and 69390 transitions. [2024-11-18 15:08:43,020 INFO L78 Accepts]: Start accepts. Automaton has 48079 states and 69390 transitions. Word has length 111 [2024-11-18 15:08:43,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:08:43,025 INFO L471 AbstractCegarLoop]: Abstraction has 48079 states and 69390 transitions. [2024-11-18 15:08:43,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 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) [2024-11-18 15:08:43,025 INFO L276 IsEmpty]: Start isEmpty. Operand 48079 states and 69390 transitions. [2024-11-18 15:08:43,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-18 15:08:43,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:08:43,041 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 15:08:43,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 15:08:43,041 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:08:43,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:08:43,042 INFO L85 PathProgramCache]: Analyzing trace with hash 2001758078, now seen corresponding path program 1 times [2024-11-18 15:08:43,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:08:43,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603301576] [2024-11-18 15:08:43,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:08:43,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:08:43,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:08:43,202 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-18 15:08:43,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:08:43,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603301576] [2024-11-18 15:08:43,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603301576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:08:43,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:08:43,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 15:08:43,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687630698] [2024-11-18 15:08:43,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:08:43,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 15:08:43,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:08:43,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 15:08:43,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 15:08:43,205 INFO L87 Difference]: Start difference. First operand 48079 states and 69390 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 8 states have internal predecessors, (108), 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) [2024-11-18 15:08:44,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:08:44,305 INFO L93 Difference]: Finished difference Result 132349 states and 191893 transitions. [2024-11-18 15:08:44,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 15:08:44,306 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 8 states have internal predecessors, (108), 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 111 [2024-11-18 15:08:44,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:08:44,441 INFO L225 Difference]: With dead ends: 132349 [2024-11-18 15:08:44,441 INFO L226 Difference]: Without dead ends: 117851 [2024-11-18 15:08:44,467 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 15:08:44,468 INFO L432 NwaCegarLoop]: 254 mSDtfsCounter, 1445 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1445 SdHoareTripleChecker+Valid, 1499 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:08:44,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1445 Valid, 1499 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:08:44,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117851 states. [2024-11-18 15:08:45,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117851 to 62575. [2024-11-18 15:08:45,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62575 states, 62574 states have (on average 1.442867644708665) internal successors, (90286), 62574 states have internal predecessors, (90286), 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) [2024-11-18 15:08:45,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62575 states to 62575 states and 90286 transitions. [2024-11-18 15:08:45,903 INFO L78 Accepts]: Start accepts. Automaton has 62575 states and 90286 transitions. Word has length 111 [2024-11-18 15:08:45,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:08:45,905 INFO L471 AbstractCegarLoop]: Abstraction has 62575 states and 90286 transitions. [2024-11-18 15:08:45,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 8 states have internal predecessors, (108), 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) [2024-11-18 15:08:45,906 INFO L276 IsEmpty]: Start isEmpty. Operand 62575 states and 90286 transitions. [2024-11-18 15:08:45,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-18 15:08:45,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:08:45,916 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 15:08:45,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 15:08:45,916 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:08:45,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:08:45,917 INFO L85 PathProgramCache]: Analyzing trace with hash 277216016, now seen corresponding path program 1 times [2024-11-18 15:08:45,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:08:45,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278515279] [2024-11-18 15:08:45,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:08:45,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:08:45,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:08:46,753 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 15:08:46,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:08:46,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278515279] [2024-11-18 15:08:46,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278515279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:08:46,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:08:46,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 15:08:46,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694089756] [2024-11-18 15:08:46,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:08:46,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 15:08:46,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:08:46,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 15:08:46,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 15:08:46,757 INFO L87 Difference]: Start difference. First operand 62575 states and 90286 transitions. Second operand has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 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) [2024-11-18 15:08:47,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:08:47,437 INFO L93 Difference]: Finished difference Result 146845 states and 212789 transitions. [2024-11-18 15:08:47,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 15:08:47,438 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 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 111 [2024-11-18 15:08:47,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:08:47,670 INFO L225 Difference]: With dead ends: 146845 [2024-11-18 15:08:47,671 INFO L226 Difference]: Without dead ends: 132347 [2024-11-18 15:08:47,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 15:08:47,739 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 1365 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1365 SdHoareTripleChecker+Valid, 1601 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:08:47,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1365 Valid, 1601 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:08:47,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132347 states. [2024-11-18 15:08:49,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132347 to 77071. [2024-11-18 15:08:49,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77071 states, 77070 states have (on average 1.4426106137277799) internal successors, (111182), 77070 states have internal predecessors, (111182), 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) [2024-11-18 15:08:49,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77071 states to 77071 states and 111182 transitions. [2024-11-18 15:08:49,908 INFO L78 Accepts]: Start accepts. Automaton has 77071 states and 111182 transitions. Word has length 111 [2024-11-18 15:08:49,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:08:49,908 INFO L471 AbstractCegarLoop]: Abstraction has 77071 states and 111182 transitions. [2024-11-18 15:08:49,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 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) [2024-11-18 15:08:49,909 INFO L276 IsEmpty]: Start isEmpty. Operand 77071 states and 111182 transitions. [2024-11-18 15:08:49,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-18 15:08:49,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:08:49,918 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 15:08:49,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 15:08:49,918 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:08:49,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:08:49,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1431162122, now seen corresponding path program 1 times [2024-11-18 15:08:49,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:08:49,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035874830] [2024-11-18 15:08:49,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:08:49,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:08:49,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:08:50,549 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-18 15:08:50,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:08:50,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035874830] [2024-11-18 15:08:50,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035874830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:08:50,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:08:50,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 15:08:50,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993936972] [2024-11-18 15:08:50,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:08:50,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 15:08:50,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:08:50,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 15:08:50,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 15:08:50,553 INFO L87 Difference]: Start difference. First operand 77071 states and 111182 transitions. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 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) [2024-11-18 15:08:51,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:08:51,150 INFO L93 Difference]: Finished difference Result 161341 states and 233685 transitions. [2024-11-18 15:08:51,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 15:08:51,151 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 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 111 [2024-11-18 15:08:51,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:08:51,394 INFO L225 Difference]: With dead ends: 161341 [2024-11-18 15:08:51,394 INFO L226 Difference]: Without dead ends: 146843 [2024-11-18 15:08:51,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 15:08:51,467 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 1201 mSDsluCounter, 1421 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 1674 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:08:51,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1201 Valid, 1674 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:08:51,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146843 states. [2024-11-18 15:08:53,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146843 to 91567. [2024-11-18 15:08:53,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91567 states, 91566 states have (on average 1.4424349649433195) internal successors, (132078), 91566 states have internal predecessors, (132078), 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) [2024-11-18 15:08:53,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91567 states to 91567 states and 132078 transitions. [2024-11-18 15:08:53,771 INFO L78 Accepts]: Start accepts. Automaton has 91567 states and 132078 transitions. Word has length 111 [2024-11-18 15:08:53,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:08:53,771 INFO L471 AbstractCegarLoop]: Abstraction has 91567 states and 132078 transitions. [2024-11-18 15:08:53,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 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) [2024-11-18 15:08:53,772 INFO L276 IsEmpty]: Start isEmpty. Operand 91567 states and 132078 transitions. [2024-11-18 15:08:53,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-18 15:08:53,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:08:53,783 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 15:08:53,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 15:08:53,783 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:08:53,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:08:53,784 INFO L85 PathProgramCache]: Analyzing trace with hash 573261444, now seen corresponding path program 1 times [2024-11-18 15:08:53,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:08:53,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120996313] [2024-11-18 15:08:53,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:08:53,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:08:53,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:08:54,024 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-18 15:08:54,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:08:54,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120996313] [2024-11-18 15:08:54,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120996313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:08:54,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 15:08:54,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 15:08:54,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486467916] [2024-11-18 15:08:54,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:08:54,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 15:08:54,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:08:54,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 15:08:54,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 15:08:54,029 INFO L87 Difference]: Start difference. First operand 91567 states and 132078 transitions. Second operand has 8 states, 8 states have (on average 13.375) internal successors, (107), 8 states have internal predecessors, (107), 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) [2024-11-18 15:08:54,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:08:54,799 INFO L93 Difference]: Finished difference Result 175837 states and 254581 transitions. [2024-11-18 15:08:54,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 15:08:54,800 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 8 states have internal predecessors, (107), 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 111 [2024-11-18 15:08:54,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:08:55,014 INFO L225 Difference]: With dead ends: 175837 [2024-11-18 15:08:55,014 INFO L226 Difference]: Without dead ends: 161339 [2024-11-18 15:08:55,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-18 15:08:55,078 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 1201 mSDsluCounter, 1529 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 15:08:55,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1201 Valid, 1781 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 15:08:55,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161339 states. [2024-11-18 15:08:57,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161339 to 106063. [2024-11-18 15:08:57,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106063 states, 106062 states have (on average 1.4423073296750957) internal successors, (152974), 106062 states have internal predecessors, (152974), 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) [2024-11-18 15:08:57,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106063 states to 106063 states and 152974 transitions. [2024-11-18 15:08:57,403 INFO L78 Accepts]: Start accepts. Automaton has 106063 states and 152974 transitions. Word has length 111 [2024-11-18 15:08:57,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:08:57,404 INFO L471 AbstractCegarLoop]: Abstraction has 106063 states and 152974 transitions. [2024-11-18 15:08:57,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 8 states have internal predecessors, (107), 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) [2024-11-18 15:08:57,404 INFO L276 IsEmpty]: Start isEmpty. Operand 106063 states and 152974 transitions. [2024-11-18 15:08:57,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-18 15:08:57,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:08:57,414 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 15:08:57,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 15:08:57,414 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:08:57,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:08:57,415 INFO L85 PathProgramCache]: Analyzing trace with hash -348370498, now seen corresponding path program 1 times [2024-11-18 15:08:57,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:08:57,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078666569] [2024-11-18 15:08:57,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:08:57,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:08:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:08:57,979 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:08:57,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:08:57,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078666569] [2024-11-18 15:08:57,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078666569] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 15:08:57,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827314570] [2024-11-18 15:08:57,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:08:57,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 15:08:57,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:08:57,985 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) [2024-11-18 15:08:57,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 15:08:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:08:58,162 INFO L255 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-18 15:08:58,170 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 15:08:58,441 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:08:58,441 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 15:08:59,143 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:08:59,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827314570] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 15:08:59,144 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 15:08:59,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 6, 5] total 21 [2024-11-18 15:08:59,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47417379] [2024-11-18 15:08:59,144 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 15:08:59,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-18 15:08:59,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:08:59,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-18 15:08:59,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2024-11-18 15:08:59,146 INFO L87 Difference]: Start difference. First operand 106063 states and 152974 transitions. Second operand has 21 states, 21 states have (on average 15.428571428571429) internal successors, (324), 21 states have internal predecessors, (324), 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) [2024-11-18 15:09:09,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:09:09,113 INFO L93 Difference]: Finished difference Result 1030320 states and 1479025 transitions. [2024-11-18 15:09:09,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2024-11-18 15:09:09,113 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 15.428571428571429) internal successors, (324), 21 states have internal predecessors, (324), 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 112 [2024-11-18 15:09:09,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:09:11,785 INFO L225 Difference]: With dead ends: 1030320 [2024-11-18 15:09:11,786 INFO L226 Difference]: Without dead ends: 924302 [2024-11-18 15:09:12,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9179 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=3489, Invalid=18267, Unknown=0, NotChecked=0, Total=21756 [2024-11-18 15:09:12,047 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 7839 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 1806 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7839 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 1938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 1806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-18 15:09:12,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7839 Valid, 1493 Invalid, 1938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 1806 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-18 15:09:12,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924302 states. [2024-11-18 15:09:22,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924302 to 691935. [2024-11-18 15:09:23,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691935 states, 691934 states have (on average 1.4186309676934505) internal successors, (981599), 691934 states have internal predecessors, (981599), 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) [2024-11-18 15:09:26,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691935 states to 691935 states and 981599 transitions. [2024-11-18 15:09:26,913 INFO L78 Accepts]: Start accepts. Automaton has 691935 states and 981599 transitions. Word has length 112 [2024-11-18 15:09:26,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:09:26,914 INFO L471 AbstractCegarLoop]: Abstraction has 691935 states and 981599 transitions. [2024-11-18 15:09:26,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 15.428571428571429) internal successors, (324), 21 states have internal predecessors, (324), 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) [2024-11-18 15:09:26,914 INFO L276 IsEmpty]: Start isEmpty. Operand 691935 states and 981599 transitions. [2024-11-18 15:09:26,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-18 15:09:26,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:09:26,926 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 15:09:26,945 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 15:09:27,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 15:09:27,128 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:09:27,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:09:27,129 INFO L85 PathProgramCache]: Analyzing trace with hash -478647050, now seen corresponding path program 1 times [2024-11-18 15:09:27,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:09:27,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711275538] [2024-11-18 15:09:27,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:09:27,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:09:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:09:27,430 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:09:27,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:09:27,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711275538] [2024-11-18 15:09:27,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711275538] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 15:09:27,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045248675] [2024-11-18 15:09:27,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:09:27,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 15:09:27,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:09:27,433 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) [2024-11-18 15:09:27,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 15:09:27,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:09:27,624 INFO L255 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-18 15:09:27,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 15:09:28,261 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:09:28,261 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 15:09:29,737 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 15:09:29,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045248675] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 15:09:29,738 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 15:09:29,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-11-18 15:09:29,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538473525] [2024-11-18 15:09:29,739 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 15:09:29,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-18 15:09:29,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:09:29,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-18 15:09:29,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2024-11-18 15:09:29,740 INFO L87 Difference]: Start difference. First operand 691935 states and 981599 transitions. Second operand has 23 states, 23 states have (on average 10.869565217391305) internal successors, (250), 22 states have internal predecessors, (250), 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)