./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f 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_floodmax.3.3.ufo.UNBOUNDED.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 5c011d5a0fba56387056dfb1e4fd33cceb66b52965c25e0a625e04747833af64 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 21:28:26,335 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 21:28:26,413 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 21:28:26,417 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 21:28:26,419 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 21:28:26,449 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 21:28:26,451 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 21:28:26,451 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 21:28:26,452 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 21:28:26,453 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 21:28:26,453 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 21:28:26,453 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 21:28:26,454 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 21:28:26,455 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 21:28:26,457 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 21:28:26,457 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 21:28:26,457 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 21:28:26,458 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 21:28:26,458 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 21:28:26,458 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 21:28:26,458 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 21:28:26,462 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 21:28:26,462 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 21:28:26,463 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 21:28:26,463 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 21:28:26,463 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 21:28:26,463 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 21:28:26,464 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 21:28:26,464 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 21:28:26,464 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 21:28:26,464 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 21:28:26,465 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 21:28:26,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 21:28:26,465 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 21:28:26,465 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 21:28:26,466 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 21:28:26,466 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 21:28:26,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 21:28:26,466 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 21:28:26,467 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 21:28:26,467 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 21:28:26,468 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 21:28:26,469 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c011d5a0fba56387056dfb1e4fd33cceb66b52965c25e0a625e04747833af64 [2024-11-11 21:28:26,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 21:28:26,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 21:28:26,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 21:28:26,725 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 21:28:26,726 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 21:28:26,727 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-11 21:28:28,167 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 21:28:28,418 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 21:28:28,419 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-11 21:28:28,437 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58f4567ab/7ca952601ed2468a9fade7de9ee82d63/FLAGf8edc05a6 [2024-11-11 21:28:28,453 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58f4567ab/7ca952601ed2468a9fade7de9ee82d63 [2024-11-11 21:28:28,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 21:28:28,459 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 21:28:28,462 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 21:28:28,462 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 21:28:28,469 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 21:28:28,469 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:28:28" (1/1) ... [2024-11-11 21:28:28,472 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d981c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:28:28, skipping insertion in model container [2024-11-11 21:28:28,472 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:28:28" (1/1) ... [2024-11-11 21:28:28,521 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 21:28:28,801 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_floodmax.3.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[7349,7362] [2024-11-11 21:28:28,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 21:28:28,870 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 21:28:28,917 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_floodmax.3.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[7349,7362] [2024-11-11 21:28:28,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 21:28:28,972 INFO L204 MainTranslator]: Completed translation [2024-11-11 21:28:28,973 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:28:28 WrapperNode [2024-11-11 21:28:28,973 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 21:28:28,974 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 21:28:28,974 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 21:28:28,974 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 21:28:28,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:28:28" (1/1) ... [2024-11-11 21:28:28,991 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:28:28" (1/1) ... [2024-11-11 21:28:29,033 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 634 [2024-11-11 21:28:29,036 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 21:28:29,037 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 21:28:29,037 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 21:28:29,037 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 21:28:29,047 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:28:28" (1/1) ... [2024-11-11 21:28:29,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:28:28" (1/1) ... [2024-11-11 21:28:29,051 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:28:28" (1/1) ... [2024-11-11 21:28:29,071 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]. [2024-11-11 21:28:29,072 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:28:28" (1/1) ... [2024-11-11 21:28:29,072 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:28:28" (1/1) ... [2024-11-11 21:28:29,082 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:28:28" (1/1) ... [2024-11-11 21:28:29,087 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:28:28" (1/1) ... [2024-11-11 21:28:29,090 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:28:28" (1/1) ... [2024-11-11 21:28:29,093 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:28:28" (1/1) ... [2024-11-11 21:28:29,101 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 21:28:29,102 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 21:28:29,102 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 21:28:29,102 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 21:28:29,103 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:28:28" (1/1) ... [2024-11-11 21:28:29,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 21:28:29,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 21:28:29,144 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) [2024-11-11 21:28:29,150 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 [2024-11-11 21:28:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 21:28:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 21:28:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 21:28:29,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 21:28:29,364 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 21:28:29,366 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 21:28:29,989 INFO L? ?]: Removed 47 outVars from TransFormulas that were not future-live. [2024-11-11 21:28:29,989 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 21:28:30,007 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 21:28:30,007 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-11 21:28:30,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:28:30 BoogieIcfgContainer [2024-11-11 21:28:30,008 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 21:28:30,011 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 21:28:30,011 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 21:28:30,015 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 21:28:30,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 09:28:28" (1/3) ... [2024-11-11 21:28:30,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@651e02ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:28:30, skipping insertion in model container [2024-11-11 21:28:30,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:28:28" (2/3) ... [2024-11-11 21:28:30,017 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@651e02ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:28:30, skipping insertion in model container [2024-11-11 21:28:30,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:28:30" (3/3) ... [2024-11-11 21:28:30,019 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-11 21:28:30,040 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 21:28:30,041 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 21:28:30,112 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 21:28:30,119 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;@48616045, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 21:28:30,120 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 21:28:30,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 138 states have (on average 1.7608695652173914) internal successors, (243), 139 states have internal predecessors, (243), 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) [2024-11-11 21:28:30,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-11 21:28:30,137 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:28:30,139 INFO L218 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] [2024-11-11 21:28:30,139 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:28:30,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:28:30,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1890044597, now seen corresponding path program 1 times [2024-11-11 21:28:30,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:28:30,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417097840] [2024-11-11 21:28:30,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:28:30,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:28:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:28:30,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:28:30,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:28:30,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417097840] [2024-11-11 21:28:30,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417097840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:28:30,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:28:30,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:28:30,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396751359] [2024-11-11 21:28:30,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:28:30,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:28:30,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:28:30,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:28:30,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:28:30,673 INFO L87 Difference]: Start difference. First operand has 140 states, 138 states have (on average 1.7608695652173914) internal successors, (243), 139 states have internal predecessors, (243), 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 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-11-11 21:28:30,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:28:30,802 INFO L93 Difference]: Finished difference Result 303 states and 512 transitions. [2024-11-11 21:28:30,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:28:30,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 56 [2024-11-11 21:28:30,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:28:30,817 INFO L225 Difference]: With dead ends: 303 [2024-11-11 21:28:30,817 INFO L226 Difference]: Without dead ends: 211 [2024-11-11 21:28:30,820 INFO L434 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 [2024-11-11 21:28:30,825 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 138 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:28:30,825 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 418 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:28:30,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-11 21:28:30,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 208. [2024-11-11 21:28:30,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 207 states have (on average 1.5797101449275361) internal successors, (327), 207 states have internal predecessors, (327), 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) [2024-11-11 21:28:30,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 327 transitions. [2024-11-11 21:28:30,878 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 327 transitions. Word has length 56 [2024-11-11 21:28:30,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:28:30,879 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 327 transitions. [2024-11-11 21:28:30,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-11-11 21:28:30,880 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 327 transitions. [2024-11-11 21:28:30,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-11 21:28:30,882 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:28:30,882 INFO L218 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] [2024-11-11 21:28:30,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 21:28:30,883 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:28:30,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:28:30,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1610685192, now seen corresponding path program 1 times [2024-11-11 21:28:30,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:28:30,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226197116] [2024-11-11 21:28:30,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:28:30,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:28:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:28:31,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:28:31,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:28:31,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226197116] [2024-11-11 21:28:31,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226197116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:28:31,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:28:31,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:28:31,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597386490] [2024-11-11 21:28:31,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:28:31,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:28:31,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:28:31,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:28:31,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:28:31,153 INFO L87 Difference]: Start difference. First operand 208 states and 327 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-11-11 21:28:31,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:28:31,215 INFO L93 Difference]: Finished difference Result 502 states and 811 transitions. [2024-11-11 21:28:31,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:28:31,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2024-11-11 21:28:31,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:28:31,221 INFO L225 Difference]: With dead ends: 502 [2024-11-11 21:28:31,221 INFO L226 Difference]: Without dead ends: 348 [2024-11-11 21:28:31,222 INFO L434 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 [2024-11-11 21:28:31,223 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 118 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:28:31,224 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 391 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:28:31,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-11-11 21:28:31,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 344. [2024-11-11 21:28:31,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 343 states have (on average 1.6005830903790088) internal successors, (549), 343 states have internal predecessors, (549), 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) [2024-11-11 21:28:31,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 549 transitions. [2024-11-11 21:28:31,258 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 549 transitions. Word has length 58 [2024-11-11 21:28:31,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:28:31,259 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 549 transitions. [2024-11-11 21:28:31,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2024-11-11 21:28:31,259 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 549 transitions. [2024-11-11 21:28:31,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-11 21:28:31,262 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:28:31,262 INFO L218 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] [2024-11-11 21:28:31,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 21:28:31,262 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:28:31,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:28:31,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1017067947, now seen corresponding path program 1 times [2024-11-11 21:28:31,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:28:31,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986485956] [2024-11-11 21:28:31,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:28:31,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:28:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:28:31,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:28:31,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:28:31,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986485956] [2024-11-11 21:28:31,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986485956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:28:31,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:28:31,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:28:31,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026092951] [2024-11-11 21:28:31,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:28:31,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:28:31,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:28:31,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:28:31,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:28:31,422 INFO L87 Difference]: Start difference. First operand 344 states and 549 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-11-11 21:28:31,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:28:31,462 INFO L93 Difference]: Finished difference Result 896 states and 1451 transitions. [2024-11-11 21:28:31,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:28:31,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 60 [2024-11-11 21:28:31,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:28:31,466 INFO L225 Difference]: With dead ends: 896 [2024-11-11 21:28:31,467 INFO L226 Difference]: Without dead ends: 606 [2024-11-11 21:28:31,469 INFO L434 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 [2024-11-11 21:28:31,473 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 113 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:28:31,473 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 392 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:28:31,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-11-11 21:28:31,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 600. [2024-11-11 21:28:31,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 599 states have (on average 1.6043405676126878) internal successors, (961), 599 states have internal predecessors, (961), 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) [2024-11-11 21:28:31,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 961 transitions. [2024-11-11 21:28:31,503 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 961 transitions. Word has length 60 [2024-11-11 21:28:31,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:28:31,505 INFO L471 AbstractCegarLoop]: Abstraction has 600 states and 961 transitions. [2024-11-11 21:28:31,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-11-11 21:28:31,505 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 961 transitions. [2024-11-11 21:28:31,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-11 21:28:31,507 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:28:31,507 INFO L218 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] [2024-11-11 21:28:31,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 21:28:31,508 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:28:31,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:28:31,511 INFO L85 PathProgramCache]: Analyzing trace with hash 291448600, now seen corresponding path program 1 times [2024-11-11 21:28:31,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:28:31,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590886703] [2024-11-11 21:28:31,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:28:31,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:28:31,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:28:31,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:28:31,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:28:31,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590886703] [2024-11-11 21:28:31,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590886703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:28:31,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:28:31,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 21:28:31,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356118398] [2024-11-11 21:28:31,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:28:31,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:28:31,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:28:31,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:28:31,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:28:31,700 INFO L87 Difference]: Start difference. First operand 600 states and 961 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2024-11-11 21:28:31,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:28:31,905 INFO L93 Difference]: Finished difference Result 2588 states and 4247 transitions. [2024-11-11 21:28:31,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 21:28:31,906 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 62 [2024-11-11 21:28:31,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:28:31,914 INFO L225 Difference]: With dead ends: 2588 [2024-11-11 21:28:31,914 INFO L226 Difference]: Without dead ends: 2042 [2024-11-11 21:28:31,917 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-11 21:28:31,918 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 855 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:28:31,918 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 1312 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:28:31,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2042 states. [2024-11-11 21:28:31,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2042 to 1077. [2024-11-11 21:28:31,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1077 states, 1076 states have (on average 1.6161710037174721) internal successors, (1739), 1076 states have internal predecessors, (1739), 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) [2024-11-11 21:28:31,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 1739 transitions. [2024-11-11 21:28:31,953 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 1739 transitions. Word has length 62 [2024-11-11 21:28:31,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:28:31,955 INFO L471 AbstractCegarLoop]: Abstraction has 1077 states and 1739 transitions. [2024-11-11 21:28:31,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2024-11-11 21:28:31,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 1739 transitions. [2024-11-11 21:28:31,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-11 21:28:31,961 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:28:31,961 INFO L218 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] [2024-11-11 21:28:31,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 21:28:31,962 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:28:31,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:28:31,962 INFO L85 PathProgramCache]: Analyzing trace with hash 382467820, now seen corresponding path program 1 times [2024-11-11 21:28:31,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:28:31,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969944070] [2024-11-11 21:28:31,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:28:31,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:28:31,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:28:32,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:28:32,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:28:32,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969944070] [2024-11-11 21:28:32,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969944070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:28:32,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:28:32,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:28:32,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695757876] [2024-11-11 21:28:32,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:28:32,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 21:28:32,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:28:32,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 21:28:32,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 21:28:32,061 INFO L87 Difference]: Start difference. First operand 1077 states and 1739 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2024-11-11 21:28:32,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:28:32,138 INFO L93 Difference]: Finished difference Result 3142 states and 5146 transitions. [2024-11-11 21:28:32,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 21:28:32,139 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 63 [2024-11-11 21:28:32,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:28:32,147 INFO L225 Difference]: With dead ends: 3142 [2024-11-11 21:28:32,147 INFO L226 Difference]: Without dead ends: 2119 [2024-11-11 21:28:32,148 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:28:32,149 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 404 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:28:32,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 624 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:28:32,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2119 states. [2024-11-11 21:28:32,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2119 to 1589. [2024-11-11 21:28:32,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1589 states, 1588 states have (on average 1.6246851385390428) internal successors, (2580), 1588 states have internal predecessors, (2580), 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) [2024-11-11 21:28:32,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1589 states to 1589 states and 2580 transitions. [2024-11-11 21:28:32,190 INFO L78 Accepts]: Start accepts. Automaton has 1589 states and 2580 transitions. Word has length 63 [2024-11-11 21:28:32,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:28:32,191 INFO L471 AbstractCegarLoop]: Abstraction has 1589 states and 2580 transitions. [2024-11-11 21:28:32,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2024-11-11 21:28:32,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1589 states and 2580 transitions. [2024-11-11 21:28:32,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-11 21:28:32,194 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:28:32,194 INFO L218 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] [2024-11-11 21:28:32,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 21:28:32,195 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:28:32,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:28:32,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1086345633, now seen corresponding path program 1 times [2024-11-11 21:28:32,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:28:32,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325052815] [2024-11-11 21:28:32,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:28:32,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:28:32,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:28:32,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:28:32,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:28:32,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325052815] [2024-11-11 21:28:32,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325052815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:28:32,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:28:32,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:28:32,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355542160] [2024-11-11 21:28:32,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:28:32,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 21:28:32,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:28:32,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 21:28:32,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 21:28:32,346 INFO L87 Difference]: Start difference. First operand 1589 states and 2580 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-11-11 21:28:32,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:28:32,448 INFO L93 Difference]: Finished difference Result 4610 states and 7544 transitions. [2024-11-11 21:28:32,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 21:28:32,449 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 64 [2024-11-11 21:28:32,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:28:32,462 INFO L225 Difference]: With dead ends: 4610 [2024-11-11 21:28:32,464 INFO L226 Difference]: Without dead ends: 3075 [2024-11-11 21:28:32,466 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:28:32,467 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 402 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:28:32,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 715 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:28:32,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3075 states. [2024-11-11 21:28:32,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3075 to 2320. [2024-11-11 21:28:32,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2320 states, 2319 states have (on average 1.624407072013799) internal successors, (3767), 2319 states have internal predecessors, (3767), 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) [2024-11-11 21:28:32,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2320 states to 2320 states and 3767 transitions. [2024-11-11 21:28:32,538 INFO L78 Accepts]: Start accepts. Automaton has 2320 states and 3767 transitions. Word has length 64 [2024-11-11 21:28:32,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:28:32,539 INFO L471 AbstractCegarLoop]: Abstraction has 2320 states and 3767 transitions. [2024-11-11 21:28:32,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-11-11 21:28:32,539 INFO L276 IsEmpty]: Start isEmpty. Operand 2320 states and 3767 transitions. [2024-11-11 21:28:32,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 21:28:32,543 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:28:32,543 INFO L218 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] [2024-11-11 21:28:32,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 21:28:32,543 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:28:32,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:28:32,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1879078355, now seen corresponding path program 1 times [2024-11-11 21:28:32,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:28:32,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947434726] [2024-11-11 21:28:32,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:28:32,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:28:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:28:32,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:28:32,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:28:32,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947434726] [2024-11-11 21:28:32,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947434726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:28:32,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:28:32,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:28:32,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901436492] [2024-11-11 21:28:32,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:28:32,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:28:32,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:28:32,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:28:32,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:28:32,627 INFO L87 Difference]: Start difference. First operand 2320 states and 3767 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-11-11 21:28:32,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:28:32,669 INFO L93 Difference]: Finished difference Result 5110 states and 8342 transitions. [2024-11-11 21:28:32,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:28:32,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 65 [2024-11-11 21:28:32,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:28:32,682 INFO L225 Difference]: With dead ends: 5110 [2024-11-11 21:28:32,682 INFO L226 Difference]: Without dead ends: 3501 [2024-11-11 21:28:32,687 INFO L434 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 [2024-11-11 21:28:32,690 INFO L435 NwaCegarLoop]: 278 mSDtfsCounter, 117 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 463 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 [2024-11-11 21:28:32,690 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 463 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:28:32,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3501 states. [2024-11-11 21:28:32,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3501 to 3499. [2024-11-11 21:28:32,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3499 states, 3498 states have (on average 1.6217838765008576) internal successors, (5673), 3498 states have internal predecessors, (5673), 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) [2024-11-11 21:28:32,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3499 states to 3499 states and 5673 transitions. [2024-11-11 21:28:32,771 INFO L78 Accepts]: Start accepts. Automaton has 3499 states and 5673 transitions. Word has length 65 [2024-11-11 21:28:32,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:28:32,771 INFO L471 AbstractCegarLoop]: Abstraction has 3499 states and 5673 transitions. [2024-11-11 21:28:32,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-11-11 21:28:32,772 INFO L276 IsEmpty]: Start isEmpty. Operand 3499 states and 5673 transitions. [2024-11-11 21:28:32,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 21:28:32,773 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:28:32,773 INFO L218 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] [2024-11-11 21:28:32,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 21:28:32,774 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:28:32,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:28:32,774 INFO L85 PathProgramCache]: Analyzing trace with hash -450865020, now seen corresponding path program 1 times [2024-11-11 21:28:32,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:28:32,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113218567] [2024-11-11 21:28:32,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:28:32,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:28:32,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:28:32,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:28:32,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:28:32,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113218567] [2024-11-11 21:28:32,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113218567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:28:32,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:28:32,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:28:32,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468631651] [2024-11-11 21:28:32,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:28:32,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:28:32,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:28:32,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:28:32,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:28:32,882 INFO L87 Difference]: Start difference. First operand 3499 states and 5673 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-11-11 21:28:32,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:28:32,935 INFO L93 Difference]: Finished difference Result 6917 states and 11273 transitions. [2024-11-11 21:28:32,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:28:32,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 65 [2024-11-11 21:28:32,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:28:32,955 INFO L225 Difference]: With dead ends: 6917 [2024-11-11 21:28:32,955 INFO L226 Difference]: Without dead ends: 4917 [2024-11-11 21:28:32,960 INFO L434 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 [2024-11-11 21:28:32,962 INFO L435 NwaCegarLoop]: 260 mSDtfsCounter, 112 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 446 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 [2024-11-11 21:28:32,962 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 446 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:28:32,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4917 states. [2024-11-11 21:28:33,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4917 to 4915. [2024-11-11 21:28:33,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4915 states, 4914 states have (on average 1.618030118030118) internal successors, (7951), 4914 states have internal predecessors, (7951), 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) [2024-11-11 21:28:33,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4915 states to 4915 states and 7951 transitions. [2024-11-11 21:28:33,067 INFO L78 Accepts]: Start accepts. Automaton has 4915 states and 7951 transitions. Word has length 65 [2024-11-11 21:28:33,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:28:33,067 INFO L471 AbstractCegarLoop]: Abstraction has 4915 states and 7951 transitions. [2024-11-11 21:28:33,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-11-11 21:28:33,067 INFO L276 IsEmpty]: Start isEmpty. Operand 4915 states and 7951 transitions. [2024-11-11 21:28:33,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 21:28:33,068 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:28:33,068 INFO L218 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] [2024-11-11 21:28:33,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 21:28:33,068 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:28:33,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:28:33,069 INFO L85 PathProgramCache]: Analyzing trace with hash 629635603, now seen corresponding path program 1 times [2024-11-11 21:28:33,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:28:33,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301123906] [2024-11-11 21:28:33,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:28:33,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:28:33,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:28:33,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:28:33,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:28:33,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301123906] [2024-11-11 21:28:33,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301123906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:28:33,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:28:33,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:28:33,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793731548] [2024-11-11 21:28:33,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:28:33,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 21:28:33,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:28:33,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 21:28:33,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 21:28:33,184 INFO L87 Difference]: Start difference. First operand 4915 states and 7951 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-11-11 21:28:33,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:28:33,311 INFO L93 Difference]: Finished difference Result 15144 states and 24631 transitions. [2024-11-11 21:28:33,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 21:28:33,313 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 65 [2024-11-11 21:28:33,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:28:33,360 INFO L225 Difference]: With dead ends: 15144 [2024-11-11 21:28:33,360 INFO L226 Difference]: Without dead ends: 10363 [2024-11-11 21:28:33,371 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:28:33,372 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 400 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:28:33,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 583 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:28:33,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10363 states. [2024-11-11 21:28:33,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10363 to 7613. [2024-11-11 21:28:33,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7613 states, 7612 states have (on average 1.614424592748292) internal successors, (12289), 7612 states have internal predecessors, (12289), 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) [2024-11-11 21:28:33,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7613 states to 7613 states and 12289 transitions. [2024-11-11 21:28:33,579 INFO L78 Accepts]: Start accepts. Automaton has 7613 states and 12289 transitions. Word has length 65 [2024-11-11 21:28:33,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:28:33,579 INFO L471 AbstractCegarLoop]: Abstraction has 7613 states and 12289 transitions. [2024-11-11 21:28:33,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-11-11 21:28:33,580 INFO L276 IsEmpty]: Start isEmpty. Operand 7613 states and 12289 transitions. [2024-11-11 21:28:33,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 21:28:33,580 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:28:33,581 INFO L218 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] [2024-11-11 21:28:33,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 21:28:33,582 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:28:33,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:28:33,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1768808302, now seen corresponding path program 1 times [2024-11-11 21:28:33,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:28:33,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836699749] [2024-11-11 21:28:33,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:28:33,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:28:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:28:33,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:28:33,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:28:33,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836699749] [2024-11-11 21:28:33,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836699749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:28:33,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:28:33,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:28:33,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253386106] [2024-11-11 21:28:33,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:28:33,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:28:33,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:28:33,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:28:33,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:28:33,653 INFO L87 Difference]: Start difference. First operand 7613 states and 12289 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-11-11 21:28:33,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:28:33,717 INFO L93 Difference]: Finished difference Result 16687 states and 27284 transitions. [2024-11-11 21:28:33,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:28:33,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 65 [2024-11-11 21:28:33,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:28:33,747 INFO L225 Difference]: With dead ends: 16687 [2024-11-11 21:28:33,748 INFO L226 Difference]: Without dead ends: 11162 [2024-11-11 21:28:33,759 INFO L434 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 [2024-11-11 21:28:33,760 INFO L435 NwaCegarLoop]: 305 mSDtfsCounter, 122 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 489 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 [2024-11-11 21:28:33,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 489 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:28:33,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11162 states. [2024-11-11 21:28:33,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11162 to 11160. [2024-11-11 21:28:33,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11160 states, 11159 states have (on average 1.6188726588403979) internal successors, (18065), 11159 states have internal predecessors, (18065), 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) [2024-11-11 21:28:34,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11160 states to 11160 states and 18065 transitions. [2024-11-11 21:28:34,023 INFO L78 Accepts]: Start accepts. Automaton has 11160 states and 18065 transitions. Word has length 65 [2024-11-11 21:28:34,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:28:34,024 INFO L471 AbstractCegarLoop]: Abstraction has 11160 states and 18065 transitions. [2024-11-11 21:28:34,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-11-11 21:28:34,024 INFO L276 IsEmpty]: Start isEmpty. Operand 11160 states and 18065 transitions. [2024-11-11 21:28:34,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-11 21:28:34,024 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:28:34,024 INFO L218 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] [2024-11-11 21:28:34,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 21:28:34,025 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:28:34,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:28:34,025 INFO L85 PathProgramCache]: Analyzing trace with hash -2027885532, now seen corresponding path program 1 times [2024-11-11 21:28:34,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:28:34,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556760612] [2024-11-11 21:28:34,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:28:34,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:28:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:28:34,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:28:34,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:28:34,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556760612] [2024-11-11 21:28:34,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556760612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:28:34,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:28:34,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 21:28:34,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377607951] [2024-11-11 21:28:34,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:28:34,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:28:34,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:28:34,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:28:34,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:28:34,304 INFO L87 Difference]: Start difference. First operand 11160 states and 18065 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) [2024-11-11 21:28:34,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:28:34,448 INFO L93 Difference]: Finished difference Result 22241 states and 36020 transitions. [2024-11-11 21:28:34,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:28:34,449 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 67 [2024-11-11 21:28:34,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:28:34,472 INFO L225 Difference]: With dead ends: 22241 [2024-11-11 21:28:34,472 INFO L226 Difference]: Without dead ends: 11162 [2024-11-11 21:28:34,487 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-11 21:28:34,488 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 227 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:28:34,488 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 578 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:28:34,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11162 states. [2024-11-11 21:28:34,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11162 to 11160. [2024-11-11 21:28:34,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11160 states, 11159 states have (on average 1.607670938256116) internal successors, (17940), 11159 states have internal predecessors, (17940), 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) [2024-11-11 21:28:34,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11160 states to 11160 states and 17940 transitions. [2024-11-11 21:28:34,736 INFO L78 Accepts]: Start accepts. Automaton has 11160 states and 17940 transitions. Word has length 67 [2024-11-11 21:28:34,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:28:34,736 INFO L471 AbstractCegarLoop]: Abstraction has 11160 states and 17940 transitions. [2024-11-11 21:28:34,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) [2024-11-11 21:28:34,737 INFO L276 IsEmpty]: Start isEmpty. Operand 11160 states and 17940 transitions. [2024-11-11 21:28:34,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-11 21:28:34,738 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:28:34,738 INFO L218 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] [2024-11-11 21:28:34,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 21:28:34,739 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:28:34,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:28:34,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1776446511, now seen corresponding path program 1 times [2024-11-11 21:28:34,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:28:34,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418008920] [2024-11-11 21:28:34,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:28:34,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:28:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:28:34,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:28:34,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:28:34,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418008920] [2024-11-11 21:28:34,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418008920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:28:34,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:28:34,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 21:28:34,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916779530] [2024-11-11 21:28:34,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:28:34,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:28:34,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:28:34,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:28:34,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:28:34,976 INFO L87 Difference]: Start difference. First operand 11160 states and 17940 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2024-11-11 21:28:35,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:28:35,247 INFO L93 Difference]: Finished difference Result 31943 states and 51512 transitions. [2024-11-11 21:28:35,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:28:35,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 70 [2024-11-11 21:28:35,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:28:35,292 INFO L225 Difference]: With dead ends: 31943 [2024-11-11 21:28:35,292 INFO L226 Difference]: Without dead ends: 20864 [2024-11-11 21:28:35,306 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-11 21:28:35,307 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 112 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:28:35,307 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 774 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:28:35,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20864 states. [2024-11-11 21:28:35,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20864 to 20862. [2024-11-11 21:28:35,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20862 states, 20861 states have (on average 1.595944585590336) internal successors, (33293), 20861 states have internal predecessors, (33293), 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) [2024-11-11 21:28:35,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20862 states to 20862 states and 33293 transitions. [2024-11-11 21:28:35,812 INFO L78 Accepts]: Start accepts. Automaton has 20862 states and 33293 transitions. Word has length 70 [2024-11-11 21:28:35,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:28:35,816 INFO L471 AbstractCegarLoop]: Abstraction has 20862 states and 33293 transitions. [2024-11-11 21:28:35,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2024-11-11 21:28:35,817 INFO L276 IsEmpty]: Start isEmpty. Operand 20862 states and 33293 transitions. [2024-11-11 21:28:35,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-11 21:28:35,817 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:28:35,818 INFO L218 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] [2024-11-11 21:28:35,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 21:28:35,818 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:28:35,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:28:35,819 INFO L85 PathProgramCache]: Analyzing trace with hash 762823713, now seen corresponding path program 1 times [2024-11-11 21:28:35,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:28:35,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760701645] [2024-11-11 21:28:35,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:28:35,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:28:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:28:36,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:28:36,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:28:36,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760701645] [2024-11-11 21:28:36,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760701645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:28:36,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:28:36,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 21:28:36,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019564430] [2024-11-11 21:28:36,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:28:36,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:28:36,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:28:36,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:28:36,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:28:36,226 INFO L87 Difference]: Start difference. First operand 20862 states and 33293 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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) [2024-11-11 21:28:36,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:28:36,316 INFO L93 Difference]: Finished difference Result 21588 states and 34380 transitions. [2024-11-11 21:28:36,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:28:36,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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 71 [2024-11-11 21:28:36,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:28:36,353 INFO L225 Difference]: With dead ends: 21588 [2024-11-11 21:28:36,353 INFO L226 Difference]: Without dead ends: 21586 [2024-11-11 21:28:36,364 INFO L434 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 [2024-11-11 21:28:36,365 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 0 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:28:36,365 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 820 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:28:36,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21586 states. [2024-11-11 21:28:36,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21586 to 21586. [2024-11-11 21:28:36,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21586 states, 21585 states have (on average 1.5755385684503127) internal successors, (34008), 21585 states have internal predecessors, (34008), 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) [2024-11-11 21:28:36,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21586 states to 21586 states and 34008 transitions. [2024-11-11 21:28:36,753 INFO L78 Accepts]: Start accepts. Automaton has 21586 states and 34008 transitions. Word has length 71 [2024-11-11 21:28:36,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:28:36,754 INFO L471 AbstractCegarLoop]: Abstraction has 21586 states and 34008 transitions. [2024-11-11 21:28:36,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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) [2024-11-11 21:28:36,754 INFO L276 IsEmpty]: Start isEmpty. Operand 21586 states and 34008 transitions. [2024-11-11 21:28:36,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-11 21:28:36,756 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:28:36,757 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:28:36,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-11 21:28:36,757 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:28:36,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:28:36,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1613729099, now seen corresponding path program 1 times [2024-11-11 21:28:36,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:28:36,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256100958] [2024-11-11 21:28:36,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:28:36,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:28:36,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:28:36,945 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-11 21:28:36,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:28:36,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256100958] [2024-11-11 21:28:36,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256100958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:28:36,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:28:36,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 21:28:36,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208503384] [2024-11-11 21:28:36,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:28:36,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:28:36,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:28:36,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:28:36,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:28:36,952 INFO L87 Difference]: Start difference. First operand 21586 states and 34008 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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) [2024-11-11 21:28:37,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:28:37,336 INFO L93 Difference]: Finished difference Result 52602 states and 83212 transitions. [2024-11-11 21:28:37,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:28:37,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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 93 [2024-11-11 21:28:37,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:28:37,416 INFO L225 Difference]: With dead ends: 52602 [2024-11-11 21:28:37,417 INFO L226 Difference]: Without dead ends: 42410 [2024-11-11 21:28:37,437 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:28:37,438 INFO L435 NwaCegarLoop]: 338 mSDtfsCounter, 512 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:28:37,438 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 931 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:28:37,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42410 states. [2024-11-11 21:28:37,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42410 to 33120. [2024-11-11 21:28:37,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33120 states, 33119 states have (on average 1.5748060025966968) internal successors, (52156), 33119 states have internal predecessors, (52156), 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) [2024-11-11 21:28:38,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33120 states to 33120 states and 52156 transitions. [2024-11-11 21:28:38,052 INFO L78 Accepts]: Start accepts. Automaton has 33120 states and 52156 transitions. Word has length 93 [2024-11-11 21:28:38,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:28:38,052 INFO L471 AbstractCegarLoop]: Abstraction has 33120 states and 52156 transitions. [2024-11-11 21:28:38,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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) [2024-11-11 21:28:38,053 INFO L276 IsEmpty]: Start isEmpty. Operand 33120 states and 52156 transitions. [2024-11-11 21:28:38,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-11 21:28:38,055 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:28:38,055 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:28:38,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 21:28:38,055 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:28:38,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:28:38,056 INFO L85 PathProgramCache]: Analyzing trace with hash 351294822, now seen corresponding path program 1 times [2024-11-11 21:28:38,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:28:38,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428911800] [2024-11-11 21:28:38,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:28:38,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:28:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:28:38,411 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-11 21:28:38,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:28:38,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428911800] [2024-11-11 21:28:38,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428911800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:28:38,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:28:38,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 21:28:38,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345528308] [2024-11-11 21:28:38,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:28:38,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:28:38,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:28:38,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:28:38,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:28:38,414 INFO L87 Difference]: Start difference. First operand 33120 states and 52156 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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) [2024-11-11 21:28:38,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:28:38,671 INFO L93 Difference]: Finished difference Result 56654 states and 89648 transitions. [2024-11-11 21:28:38,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:28:38,672 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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 93 [2024-11-11 21:28:38,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:28:38,903 INFO L225 Difference]: With dead ends: 56654 [2024-11-11 21:28:38,903 INFO L226 Difference]: Without dead ends: 46462 [2024-11-11 21:28:38,936 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:28:38,937 INFO L435 NwaCegarLoop]: 345 mSDtfsCounter, 515 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:28:38,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 928 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:28:38,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46462 states. [2024-11-11 21:28:39,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46462 to 44808. [2024-11-11 21:28:39,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44808 states, 44807 states have (on average 1.5760930211797264) internal successors, (70620), 44807 states have internal predecessors, (70620), 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) [2024-11-11 21:28:39,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44808 states to 44808 states and 70620 transitions. [2024-11-11 21:28:39,918 INFO L78 Accepts]: Start accepts. Automaton has 44808 states and 70620 transitions. Word has length 93 [2024-11-11 21:28:39,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:28:39,918 INFO L471 AbstractCegarLoop]: Abstraction has 44808 states and 70620 transitions. [2024-11-11 21:28:39,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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) [2024-11-11 21:28:39,923 INFO L276 IsEmpty]: Start isEmpty. Operand 44808 states and 70620 transitions. [2024-11-11 21:28:39,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-11 21:28:39,928 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:28:39,928 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:28:39,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-11 21:28:39,929 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:28:39,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:28:39,929 INFO L85 PathProgramCache]: Analyzing trace with hash -966648460, now seen corresponding path program 1 times [2024-11-11 21:28:39,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:28:39,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044246381] [2024-11-11 21:28:39,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:28:39,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:28:39,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:28:40,071 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-11 21:28:40,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:28:40,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044246381] [2024-11-11 21:28:40,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044246381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:28:40,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:28:40,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:28:40,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705798748] [2024-11-11 21:28:40,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:28:40,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:28:40,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:28:40,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:28:40,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:28:40,077 INFO L87 Difference]: Start difference. First operand 44808 states and 70620 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2024-11-11 21:28:40,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:28:40,580 INFO L93 Difference]: Finished difference Result 93214 states and 147670 transitions. [2024-11-11 21:28:40,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:28:40,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 93 [2024-11-11 21:28:40,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:28:40,760 INFO L225 Difference]: With dead ends: 93214 [2024-11-11 21:28:40,761 INFO L226 Difference]: Without dead ends: 82792 [2024-11-11 21:28:41,014 INFO L434 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 [2024-11-11 21:28:41,019 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 103 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:28:41,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 392 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:28:41,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82792 states. [2024-11-11 21:28:41,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82792 to 82675. [2024-11-11 21:28:42,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82675 states, 82674 states have (on average 1.5804606043012313) internal successors, (130663), 82674 states have internal predecessors, (130663), 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) [2024-11-11 21:28:42,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82675 states to 82675 states and 130663 transitions. [2024-11-11 21:28:42,149 INFO L78 Accepts]: Start accepts. Automaton has 82675 states and 130663 transitions. Word has length 93 [2024-11-11 21:28:42,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:28:42,149 INFO L471 AbstractCegarLoop]: Abstraction has 82675 states and 130663 transitions. [2024-11-11 21:28:42,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2024-11-11 21:28:42,150 INFO L276 IsEmpty]: Start isEmpty. Operand 82675 states and 130663 transitions. [2024-11-11 21:28:42,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-11 21:28:42,152 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:28:42,152 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:28:42,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-11 21:28:42,153 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:28:42,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:28:42,153 INFO L85 PathProgramCache]: Analyzing trace with hash -447040382, now seen corresponding path program 1 times [2024-11-11 21:28:42,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:28:42,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592862421] [2024-11-11 21:28:42,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:28:42,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:28:42,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:28:42,530 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:28:42,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:28:42,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592862421] [2024-11-11 21:28:42,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592862421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:28:42,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:28:42,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:28:42,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928981656] [2024-11-11 21:28:42,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:28:42,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:28:42,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:28:42,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:28:42,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:28:42,538 INFO L87 Difference]: Start difference. First operand 82675 states and 130663 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-11-11 21:28:43,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:28:43,711 INFO L93 Difference]: Finished difference Result 243532 states and 384888 transitions. [2024-11-11 21:28:43,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:28:43,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2024-11-11 21:28:43,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:28:44,052 INFO L225 Difference]: With dead ends: 243532 [2024-11-11 21:28:44,052 INFO L226 Difference]: Without dead ends: 160927 [2024-11-11 21:28:44,114 INFO L434 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 [2024-11-11 21:28:44,119 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 142 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:28:44,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 472 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:28:44,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160927 states. [2024-11-11 21:28:45,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160927 to 160925. [2024-11-11 21:28:46,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160925 states, 160924 states have (on average 1.5701076284457258) internal successors, (252668), 160924 states have internal predecessors, (252668), 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) [2024-11-11 21:28:46,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160925 states to 160925 states and 252668 transitions. [2024-11-11 21:28:46,416 INFO L78 Accepts]: Start accepts. Automaton has 160925 states and 252668 transitions. Word has length 94 [2024-11-11 21:28:46,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:28:46,416 INFO L471 AbstractCegarLoop]: Abstraction has 160925 states and 252668 transitions. [2024-11-11 21:28:46,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-11-11 21:28:46,417 INFO L276 IsEmpty]: Start isEmpty. Operand 160925 states and 252668 transitions. [2024-11-11 21:28:46,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-11 21:28:46,420 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:28:46,421 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:28:46,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-11 21:28:46,421 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:28:46,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:28:46,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1281710540, now seen corresponding path program 1 times [2024-11-11 21:28:46,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:28:46,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093334863] [2024-11-11 21:28:46,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:28:46,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:28:46,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:28:46,492 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:28:46,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:28:46,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093334863] [2024-11-11 21:28:46,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093334863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:28:46,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:28:46,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:28:46,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767950607] [2024-11-11 21:28:46,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:28:46,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:28:46,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:28:46,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:28:46,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:28:46,495 INFO L87 Difference]: Start difference. First operand 160925 states and 252668 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-11-11 21:28:49,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:28:49,496 INFO L93 Difference]: Finished difference Result 473829 states and 743875 transitions. [2024-11-11 21:28:49,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:28:49,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2024-11-11 21:28:49,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:28:50,115 INFO L225 Difference]: With dead ends: 473829 [2024-11-11 21:28:50,116 INFO L226 Difference]: Without dead ends: 313041 [2024-11-11 21:28:50,213 INFO L434 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 [2024-11-11 21:28:50,215 INFO L435 NwaCegarLoop]: 302 mSDtfsCounter, 160 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:28:50,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 506 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:28:50,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313041 states. [2024-11-11 21:28:53,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313041 to 313039. [2024-11-11 21:28:55,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313039 states, 313038 states have (on average 1.5591877024514595) internal successors, (488085), 313038 states have internal predecessors, (488085), 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) [2024-11-11 21:28:56,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313039 states to 313039 states and 488085 transitions. [2024-11-11 21:28:56,017 INFO L78 Accepts]: Start accepts. Automaton has 313039 states and 488085 transitions. Word has length 94 [2024-11-11 21:28:56,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:28:56,017 INFO L471 AbstractCegarLoop]: Abstraction has 313039 states and 488085 transitions. [2024-11-11 21:28:56,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2024-11-11 21:28:56,017 INFO L276 IsEmpty]: Start isEmpty. Operand 313039 states and 488085 transitions. [2024-11-11 21:28:56,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-11 21:28:56,022 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:28:56,022 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:28:56,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-11 21:28:56,022 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:28:56,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:28:56,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1270260760, now seen corresponding path program 1 times [2024-11-11 21:28:56,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:28:56,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080014411] [2024-11-11 21:28:56,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:28:56,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:28:56,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:28:56,132 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-11 21:28:56,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:28:56,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080014411] [2024-11-11 21:28:56,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080014411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:28:56,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:28:56,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:28:56,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695258964] [2024-11-11 21:28:56,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:28:56,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 21:28:56,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:28:56,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 21:28:56,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-11 21:28:56,136 INFO L87 Difference]: Start difference. First operand 313039 states and 488085 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 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) [2024-11-11 21:28:58,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:28:58,608 INFO L93 Difference]: Finished difference Result 506865 states and 793296 transitions. [2024-11-11 21:28:58,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 21:28:58,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 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 94 [2024-11-11 21:28:58,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:28:59,264 INFO L225 Difference]: With dead ends: 506865 [2024-11-11 21:28:59,264 INFO L226 Difference]: Without dead ends: 326395 [2024-11-11 21:28:59,453 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-11 21:28:59,453 INFO L435 NwaCegarLoop]: 332 mSDtfsCounter, 227 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:28:59,454 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 718 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:28:59,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326395 states. [2024-11-11 21:29:03,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326395 to 218999. [2024-11-11 21:29:03,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218999 states, 218998 states have (on average 1.5533155553931999) internal successors, (340173), 218998 states have internal predecessors, (340173), 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) [2024-11-11 21:29:03,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218999 states to 218999 states and 340173 transitions. [2024-11-11 21:29:03,792 INFO L78 Accepts]: Start accepts. Automaton has 218999 states and 340173 transitions. Word has length 94 [2024-11-11 21:29:03,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:29:03,793 INFO L471 AbstractCegarLoop]: Abstraction has 218999 states and 340173 transitions. [2024-11-11 21:29:03,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 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) [2024-11-11 21:29:03,793 INFO L276 IsEmpty]: Start isEmpty. Operand 218999 states and 340173 transitions. [2024-11-11 21:29:03,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-11 21:29:03,798 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:29:03,798 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:29:03,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-11 21:29:03,798 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:29:03,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:29:03,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1988921020, now seen corresponding path program 1 times [2024-11-11 21:29:03,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:29:03,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002258554] [2024-11-11 21:29:03,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:29:03,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:29:03,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:29:03,908 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-11 21:29:03,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:29:03,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002258554] [2024-11-11 21:29:03,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002258554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:29:03,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:29:03,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:29:03,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809346199] [2024-11-11 21:29:03,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:29:03,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 21:29:03,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:29:03,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 21:29:03,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-11 21:29:03,912 INFO L87 Difference]: Start difference. First operand 218999 states and 340173 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2024-11-11 21:29:06,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:29:06,191 INFO L93 Difference]: Finished difference Result 388585 states and 607708 transitions. [2024-11-11 21:29:06,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 21:29:06,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 95 [2024-11-11 21:29:06,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:29:06,775 INFO L225 Difference]: With dead ends: 388585 [2024-11-11 21:29:06,776 INFO L226 Difference]: Without dead ends: 303007 [2024-11-11 21:29:06,923 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-11 21:29:06,924 INFO L435 NwaCegarLoop]: 328 mSDtfsCounter, 241 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:29:06,924 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 656 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:29:07,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303007 states. [2024-11-11 21:29:10,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303007 to 271659. [2024-11-11 21:29:11,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271659 states, 271658 states have (on average 1.552779597876742) internal successors, (421825), 271658 states have internal predecessors, (421825), 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) [2024-11-11 21:29:12,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271659 states to 271659 states and 421825 transitions. [2024-11-11 21:29:12,723 INFO L78 Accepts]: Start accepts. Automaton has 271659 states and 421825 transitions. Word has length 95 [2024-11-11 21:29:12,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:29:12,723 INFO L471 AbstractCegarLoop]: Abstraction has 271659 states and 421825 transitions. [2024-11-11 21:29:12,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2024-11-11 21:29:12,726 INFO L276 IsEmpty]: Start isEmpty. Operand 271659 states and 421825 transitions. [2024-11-11 21:29:12,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-11 21:29:12,736 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:29:12,736 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:29:12,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-11 21:29:12,736 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:29:12,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:29:12,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1437742065, now seen corresponding path program 1 times [2024-11-11 21:29:12,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:29:12,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618526313] [2024-11-11 21:29:12,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:29:12,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:29:12,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:29:12,946 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-11 21:29:12,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:29:12,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618526313] [2024-11-11 21:29:12,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618526313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:29:12,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:29:12,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:29:12,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994073179] [2024-11-11 21:29:12,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:29:12,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:29:12,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:29:12,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:29:12,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:29:12,948 INFO L87 Difference]: Start difference. First operand 271659 states and 421825 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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) [2024-11-11 21:29:15,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:29:15,852 INFO L93 Difference]: Finished difference Result 595035 states and 927289 transitions. [2024-11-11 21:29:15,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:29:15,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 95 [2024-11-11 21:29:15,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:29:16,951 INFO L225 Difference]: With dead ends: 595035 [2024-11-11 21:29:16,951 INFO L226 Difference]: Without dead ends: 474425 [2024-11-11 21:29:17,149 INFO L434 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 [2024-11-11 21:29:17,150 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 103 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:29:17,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 385 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:29:17,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474425 states.