./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.BOUNDED-6.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_opt-floodmax.3.1.ufo.BOUNDED-6.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 725c5f8c833c7945922f02dcce7a19d2486080a25ed300fe3444b2b9ce738b5e --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 21:46:50,055 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 21:46:50,118 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 21:46:50,124 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 21:46:50,125 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 21:46:50,142 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 21:46:50,144 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 21:46:50,144 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 21:46:50,145 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 21:46:50,146 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 21:46:50,146 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 21:46:50,146 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 21:46:50,147 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 21:46:50,148 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 21:46:50,149 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 21:46:50,149 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 21:46:50,150 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 21:46:50,150 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 21:46:50,150 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 21:46:50,150 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 21:46:50,151 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 21:46:50,155 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 21:46:50,155 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 21:46:50,155 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 21:46:50,156 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 21:46:50,156 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 21:46:50,156 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 21:46:50,156 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 21:46:50,157 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 21:46:50,157 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 21:46:50,157 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 21:46:50,157 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 21:46:50,157 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 21:46:50,157 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 21:46:50,158 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 21:46:50,158 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 21:46:50,158 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 21:46:50,158 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 21:46:50,158 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 21:46:50,159 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 21:46:50,159 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 21:46:50,160 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 21:46:50,160 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 725c5f8c833c7945922f02dcce7a19d2486080a25ed300fe3444b2b9ce738b5e [2024-11-11 21:46:50,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 21:46:50,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 21:46:50,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 21:46:50,420 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 21:46:50,420 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 21:46:50,421 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c [2024-11-11 21:46:51,726 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 21:46:51,961 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 21:46:51,961 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c [2024-11-11 21:46:51,975 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1e25770a/23e2bab149f2446fb6fc428904d14123/FLAG5ab4f1087 [2024-11-11 21:46:51,992 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1e25770a/23e2bab149f2446fb6fc428904d14123 [2024-11-11 21:46:51,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 21:46:51,996 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 21:46:51,998 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 21:46:51,999 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 21:46:52,004 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 21:46:52,004 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:46:51" (1/1) ... [2024-11-11 21:46:52,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49ea0639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:46:52, skipping insertion in model container [2024-11-11 21:46:52,005 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:46:51" (1/1) ... [2024-11-11 21:46:52,039 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 21:46:52,262 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_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c[7638,7651] [2024-11-11 21:46:52,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 21:46:52,312 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 21:46:52,357 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_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c[7638,7651] [2024-11-11 21:46:52,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 21:46:52,409 INFO L204 MainTranslator]: Completed translation [2024-11-11 21:46:52,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:46:52 WrapperNode [2024-11-11 21:46:52,409 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 21:46:52,410 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 21:46:52,410 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 21:46:52,410 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 21:46:52,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:46:52" (1/1) ... [2024-11-11 21:46:52,429 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:46:52" (1/1) ... [2024-11-11 21:46:52,465 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 669 [2024-11-11 21:46:52,466 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 21:46:52,467 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 21:46:52,467 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 21:46:52,467 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 21:46:52,478 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:46:52" (1/1) ... [2024-11-11 21:46:52,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:46:52" (1/1) ... [2024-11-11 21:46:52,484 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:46:52" (1/1) ... [2024-11-11 21:46:52,503 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 21:46:52,504 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:46:52" (1/1) ... [2024-11-11 21:46:52,504 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:46:52" (1/1) ... [2024-11-11 21:46:52,514 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:46:52" (1/1) ... [2024-11-11 21:46:52,524 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:46:52" (1/1) ... [2024-11-11 21:46:52,530 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:46:52" (1/1) ... [2024-11-11 21:46:52,532 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:46:52" (1/1) ... [2024-11-11 21:46:52,536 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 21:46:52,541 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 21:46:52,541 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 21:46:52,541 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 21:46:52,542 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:46:52" (1/1) ... [2024-11-11 21:46:52,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 21:46:52,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 21:46:52,575 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 21:46:52,579 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 21:46:52,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 21:46:52,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 21:46:52,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 21:46:52,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 21:46:52,764 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 21:46:52,767 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 21:46:53,415 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-11-11 21:46:53,415 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 21:46:53,434 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 21:46:53,434 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-11 21:46:53,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:46:53 BoogieIcfgContainer [2024-11-11 21:46:53,435 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 21:46:53,436 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 21:46:53,437 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 21:46:53,442 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 21:46:53,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 09:46:51" (1/3) ... [2024-11-11 21:46:53,443 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59721d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:46:53, skipping insertion in model container [2024-11-11 21:46:53,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:46:52" (2/3) ... [2024-11-11 21:46:53,444 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59721d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:46:53, skipping insertion in model container [2024-11-11 21:46:53,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:46:53" (3/3) ... [2024-11-11 21:46:53,445 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c [2024-11-11 21:46:53,461 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 21:46:53,461 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 21:46:53,523 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 21:46:53,529 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;@510015c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 21:46:53,530 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 21:46:53,536 INFO L276 IsEmpty]: Start isEmpty. Operand has 143 states, 141 states have (on average 1.75177304964539) internal successors, (247), 142 states have internal predecessors, (247), 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 21:46:53,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-11 21:46:53,552 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:46:53,553 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 21:46:53,553 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:46:53,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:46:53,560 INFO L85 PathProgramCache]: Analyzing trace with hash -463597657, now seen corresponding path program 1 times [2024-11-11 21:46:53,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:46:53,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511812637] [2024-11-11 21:46:53,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:46:53,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:46:53,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:46:53,989 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 21:46:53,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:46:53,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511812637] [2024-11-11 21:46:53,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511812637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:46:53,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:46:53,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:46:53,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597552875] [2024-11-11 21:46:53,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:46:53,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:46:53,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:46:54,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:46:54,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:46:54,019 INFO L87 Difference]: Start difference. First operand has 143 states, 141 states have (on average 1.75177304964539) internal successors, (247), 142 states have internal predecessors, (247), 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 21:46:54,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:46:54,128 INFO L93 Difference]: Finished difference Result 317 states and 535 transitions. [2024-11-11 21:46:54,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:46:54,130 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 21:46:54,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:46:54,139 INFO L225 Difference]: With dead ends: 317 [2024-11-11 21:46:54,140 INFO L226 Difference]: Without dead ends: 219 [2024-11-11 21:46:54,142 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 21:46:54,145 INFO L435 NwaCegarLoop]: 247 mSDtfsCounter, 144 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:46:54,145 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 440 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:46:54,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-11 21:46:54,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 217. [2024-11-11 21:46:54,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 216 states have (on average 1.587962962962963) internal successors, (343), 216 states have internal predecessors, (343), 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 21:46:54,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 343 transitions. [2024-11-11 21:46:54,186 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 343 transitions. Word has length 56 [2024-11-11 21:46:54,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:46:54,187 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 343 transitions. [2024-11-11 21:46:54,187 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 21:46:54,187 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 343 transitions. [2024-11-11 21:46:54,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-11 21:46:54,189 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:46:54,189 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 21:46:54,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 21:46:54,189 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:46:54,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:46:54,190 INFO L85 PathProgramCache]: Analyzing trace with hash -452034936, now seen corresponding path program 1 times [2024-11-11 21:46:54,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:46:54,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938557299] [2024-11-11 21:46:54,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:46:54,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:46:54,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:46:54,345 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 21:46:54,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:46:54,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938557299] [2024-11-11 21:46:54,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938557299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:46:54,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:46:54,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:46:54,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920276140] [2024-11-11 21:46:54,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:46:54,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:46:54,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:46:54,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:46:54,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:46:54,352 INFO L87 Difference]: Start difference. First operand 217 states and 343 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 21:46:54,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:46:54,401 INFO L93 Difference]: Finished difference Result 533 states and 863 transitions. [2024-11-11 21:46:54,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:46:54,405 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 21:46:54,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:46:54,407 INFO L225 Difference]: With dead ends: 533 [2024-11-11 21:46:54,407 INFO L226 Difference]: Without dead ends: 367 [2024-11-11 21:46:54,408 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 21:46:54,409 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 125 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:46:54,409 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 409 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:46:54,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-11 21:46:54,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 365. [2024-11-11 21:46:54,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 364 states have (on average 1.60989010989011) internal successors, (586), 364 states have internal predecessors, (586), 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 21:46:54,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 586 transitions. [2024-11-11 21:46:54,426 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 586 transitions. Word has length 58 [2024-11-11 21:46:54,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:46:54,427 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 586 transitions. [2024-11-11 21:46:54,427 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 21:46:54,427 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 586 transitions. [2024-11-11 21:46:54,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-11 21:46:54,429 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:46:54,429 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 21:46:54,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 21:46:54,430 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:46:54,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:46:54,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1416370665, now seen corresponding path program 1 times [2024-11-11 21:46:54,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:46:54,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207451484] [2024-11-11 21:46:54,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:46:54,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:46:54,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:46:54,582 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 21:46:54,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:46:54,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207451484] [2024-11-11 21:46:54,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207451484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:46:54,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:46:54,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:46:54,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450767384] [2024-11-11 21:46:54,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:46:54,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:46:54,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:46:54,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:46:54,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:46:54,587 INFO L87 Difference]: Start difference. First operand 365 states and 586 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 21:46:54,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:46:54,628 INFO L93 Difference]: Finished difference Result 961 states and 1564 transitions. [2024-11-11 21:46:54,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:46:54,629 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 21:46:54,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:46:54,634 INFO L225 Difference]: With dead ends: 961 [2024-11-11 21:46:54,635 INFO L226 Difference]: Without dead ends: 647 [2024-11-11 21:46:54,638 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 21:46:54,639 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 119 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:46:54,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 410 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:46:54,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2024-11-11 21:46:54,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 645. [2024-11-11 21:46:54,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 644 states have (on average 1.6180124223602483) internal successors, (1042), 644 states have internal predecessors, (1042), 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 21:46:54,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 1042 transitions. [2024-11-11 21:46:54,681 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 1042 transitions. Word has length 60 [2024-11-11 21:46:54,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:46:54,684 INFO L471 AbstractCegarLoop]: Abstraction has 645 states and 1042 transitions. [2024-11-11 21:46:54,684 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 21:46:54,684 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 1042 transitions. [2024-11-11 21:46:54,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-11 21:46:54,687 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:46:54,687 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 21:46:54,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 21:46:54,688 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:46:54,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:46:54,688 INFO L85 PathProgramCache]: Analyzing trace with hash -2105142966, now seen corresponding path program 1 times [2024-11-11 21:46:54,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:46:54,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838094143] [2024-11-11 21:46:54,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:46:54,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:46:54,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:46:54,877 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 21:46:54,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:46:54,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838094143] [2024-11-11 21:46:54,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838094143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:46:54,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:46:54,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 21:46:54,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621263396] [2024-11-11 21:46:54,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:46:54,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:46:54,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:46:54,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:46:54,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:46:54,891 INFO L87 Difference]: Start difference. First operand 645 states and 1042 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 21:46:55,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:46:55,079 INFO L93 Difference]: Finished difference Result 2801 states and 4612 transitions. [2024-11-11 21:46:55,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 21:46:55,079 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 21:46:55,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:46:55,089 INFO L225 Difference]: With dead ends: 2801 [2024-11-11 21:46:55,090 INFO L226 Difference]: Without dead ends: 2207 [2024-11-11 21:46:55,092 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 21:46:55,094 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 856 mSDsluCounter, 1380 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:46:55,094 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [856 Valid, 1594 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:46:55,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2207 states. [2024-11-11 21:46:55,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2207 to 1164. [2024-11-11 21:46:55,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1164 states, 1163 states have (on average 1.6268271711092004) internal successors, (1892), 1163 states have internal predecessors, (1892), 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 21:46:55,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1164 states to 1164 states and 1892 transitions. [2024-11-11 21:46:55,137 INFO L78 Accepts]: Start accepts. Automaton has 1164 states and 1892 transitions. Word has length 62 [2024-11-11 21:46:55,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:46:55,139 INFO L471 AbstractCegarLoop]: Abstraction has 1164 states and 1892 transitions. [2024-11-11 21:46:55,140 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 21:46:55,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1164 states and 1892 transitions. [2024-11-11 21:46:55,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-11 21:46:55,142 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:46:55,142 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 21:46:55,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 21:46:55,143 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:46:55,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:46:55,144 INFO L85 PathProgramCache]: Analyzing trace with hash -897426710, now seen corresponding path program 1 times [2024-11-11 21:46:55,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:46:55,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486647271] [2024-11-11 21:46:55,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:46:55,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:46:55,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:46:55,280 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 21:46:55,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:46:55,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486647271] [2024-11-11 21:46:55,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486647271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:46:55,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:46:55,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:46:55,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563979411] [2024-11-11 21:46:55,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:46:55,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 21:46:55,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:46:55,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 21:46:55,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 21:46:55,282 INFO L87 Difference]: Start difference. First operand 1164 states and 1892 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 21:46:55,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:46:55,375 INFO L93 Difference]: Finished difference Result 3403 states and 5593 transitions. [2024-11-11 21:46:55,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 21:46:55,376 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 21:46:55,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:46:55,386 INFO L225 Difference]: With dead ends: 3403 [2024-11-11 21:46:55,386 INFO L226 Difference]: Without dead ends: 2290 [2024-11-11 21:46:55,388 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 21:46:55,391 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 430 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 737 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 21:46:55,392 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 737 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:46:55,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2290 states. [2024-11-11 21:46:55,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2290 to 1718. [2024-11-11 21:46:55,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1718 states, 1717 states have (on average 1.6319161327897496) internal successors, (2802), 1717 states have internal predecessors, (2802), 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 21:46:55,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1718 states to 1718 states and 2802 transitions. [2024-11-11 21:46:55,431 INFO L78 Accepts]: Start accepts. Automaton has 1718 states and 2802 transitions. Word has length 63 [2024-11-11 21:46:55,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:46:55,431 INFO L471 AbstractCegarLoop]: Abstraction has 1718 states and 2802 transitions. [2024-11-11 21:46:55,431 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 21:46:55,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1718 states and 2802 transitions. [2024-11-11 21:46:55,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-11 21:46:55,433 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:46:55,433 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 21:46:55,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 21:46:55,433 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:46:55,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:46:55,434 INFO L85 PathProgramCache]: Analyzing trace with hash -384729531, now seen corresponding path program 1 times [2024-11-11 21:46:55,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:46:55,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164336422] [2024-11-11 21:46:55,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:46:55,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:46:55,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:46:55,502 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 21:46:55,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:46:55,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164336422] [2024-11-11 21:46:55,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164336422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:46:55,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:46:55,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:46:55,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877469472] [2024-11-11 21:46:55,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:46:55,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:46:55,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:46:55,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:46:55,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:46:55,505 INFO L87 Difference]: Start difference. First operand 1718 states and 2802 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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 21:46:55,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:46:55,543 INFO L93 Difference]: Finished difference Result 3773 states and 6212 transitions. [2024-11-11 21:46:55,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:46:55,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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 21:46:55,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:46:55,554 INFO L225 Difference]: With dead ends: 3773 [2024-11-11 21:46:55,555 INFO L226 Difference]: Without dead ends: 2585 [2024-11-11 21:46:55,557 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 21:46:55,558 INFO L435 NwaCegarLoop]: 317 mSDtfsCounter, 132 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 500 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 21:46:55,559 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 500 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:46:55,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2585 states. [2024-11-11 21:46:55,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2585 to 2583. [2024-11-11 21:46:55,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2583 states, 2582 states have (on average 1.6347792408985282) internal successors, (4221), 2582 states have internal predecessors, (4221), 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 21:46:55,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2583 states to 2583 states and 4221 transitions. [2024-11-11 21:46:55,621 INFO L78 Accepts]: Start accepts. Automaton has 2583 states and 4221 transitions. Word has length 64 [2024-11-11 21:46:55,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:46:55,624 INFO L471 AbstractCegarLoop]: Abstraction has 2583 states and 4221 transitions. [2024-11-11 21:46:55,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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 21:46:55,624 INFO L276 IsEmpty]: Start isEmpty. Operand 2583 states and 4221 transitions. [2024-11-11 21:46:55,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-11 21:46:55,625 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:46:55,625 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 21:46:55,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 21:46:55,626 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:46:55,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:46:55,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1071619613, now seen corresponding path program 1 times [2024-11-11 21:46:55,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:46:55,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986189293] [2024-11-11 21:46:55,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:46:55,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:46:55,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:46:55,690 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 21:46:55,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:46:55,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986189293] [2024-11-11 21:46:55,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986189293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:46:55,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:46:55,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:46:55,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481269660] [2024-11-11 21:46:55,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:46:55,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:46:55,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:46:55,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:46:55,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:46:55,696 INFO L87 Difference]: Start difference. First operand 2583 states and 4221 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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 21:46:55,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:46:55,730 INFO L93 Difference]: Finished difference Result 5027 states and 8240 transitions. [2024-11-11 21:46:55,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:46:55,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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 21:46:55,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:46:55,742 INFO L225 Difference]: With dead ends: 5027 [2024-11-11 21:46:55,742 INFO L226 Difference]: Without dead ends: 3593 [2024-11-11 21:46:55,746 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 21:46:55,749 INFO L435 NwaCegarLoop]: 302 mSDtfsCounter, 126 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 486 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 21:46:55,749 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 486 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:46:55,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3593 states. [2024-11-11 21:46:55,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3593 to 3591. [2024-11-11 21:46:55,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3591 states, 3590 states have (on average 1.6298050139275766) internal successors, (5851), 3590 states have internal predecessors, (5851), 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 21:46:55,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3591 states to 3591 states and 5851 transitions. [2024-11-11 21:46:55,807 INFO L78 Accepts]: Start accepts. Automaton has 3591 states and 5851 transitions. Word has length 64 [2024-11-11 21:46:55,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:46:55,808 INFO L471 AbstractCegarLoop]: Abstraction has 3591 states and 5851 transitions. [2024-11-11 21:46:55,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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 21:46:55,808 INFO L276 IsEmpty]: Start isEmpty. Operand 3591 states and 5851 transitions. [2024-11-11 21:46:55,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-11 21:46:55,809 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:46:55,809 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 21:46:55,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 21:46:55,809 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:46:55,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:46:55,810 INFO L85 PathProgramCache]: Analyzing trace with hash -2108370415, now seen corresponding path program 1 times [2024-11-11 21:46:55,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:46:55,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629682568] [2024-11-11 21:46:55,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:46:55,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:46:55,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:46:55,887 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 21:46:55,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:46:55,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629682568] [2024-11-11 21:46:55,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629682568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:46:55,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:46:55,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:46:55,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573112560] [2024-11-11 21:46:55,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:46:55,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 21:46:55,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:46:55,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 21:46:55,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 21:46:55,890 INFO L87 Difference]: Start difference. First operand 3591 states and 5851 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 21:46:56,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:46:56,017 INFO L93 Difference]: Finished difference Result 11297 states and 18469 transitions. [2024-11-11 21:46:56,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 21:46:56,020 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 21:46:56,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:46:56,040 INFO L225 Difference]: With dead ends: 11297 [2024-11-11 21:46:56,040 INFO L226 Difference]: Without dead ends: 7775 [2024-11-11 21:46:56,044 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 21:46:56,045 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 429 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 729 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 21:46:56,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 729 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:46:56,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7775 states. [2024-11-11 21:46:56,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7775 to 5664. [2024-11-11 21:46:56,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5664 states, 5663 states have (on average 1.6238742715874979) internal successors, (9196), 5663 states have internal predecessors, (9196), 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 21:46:56,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5664 states to 5664 states and 9196 transitions. [2024-11-11 21:46:56,146 INFO L78 Accepts]: Start accepts. Automaton has 5664 states and 9196 transitions. Word has length 64 [2024-11-11 21:46:56,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:46:56,147 INFO L471 AbstractCegarLoop]: Abstraction has 5664 states and 9196 transitions. [2024-11-11 21:46:56,147 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 21:46:56,147 INFO L276 IsEmpty]: Start isEmpty. Operand 5664 states and 9196 transitions. [2024-11-11 21:46:56,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-11 21:46:56,147 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:46:56,147 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 21:46:56,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 21:46:56,148 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:46:56,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:46:56,148 INFO L85 PathProgramCache]: Analyzing trace with hash -2012593663, now seen corresponding path program 1 times [2024-11-11 21:46:56,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:46:56,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110632045] [2024-11-11 21:46:56,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:46:56,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:46:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:46:56,216 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 21:46:56,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:46:56,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110632045] [2024-11-11 21:46:56,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110632045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:46:56,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:46:56,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:46:56,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923189224] [2024-11-11 21:46:56,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:46:56,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:46:56,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:46:56,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:46:56,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:46:56,218 INFO L87 Difference]: Start difference. First operand 5664 states and 9196 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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 21:46:56,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:46:56,268 INFO L93 Difference]: Finished difference Result 11084 states and 18033 transitions. [2024-11-11 21:46:56,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:46:56,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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 21:46:56,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:46:56,295 INFO L225 Difference]: With dead ends: 11084 [2024-11-11 21:46:56,296 INFO L226 Difference]: Without dead ends: 7832 [2024-11-11 21:46:56,302 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 21:46:56,302 INFO L435 NwaCegarLoop]: 278 mSDtfsCounter, 120 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 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 21:46:56,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 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 21:46:56,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7832 states. [2024-11-11 21:46:56,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7832 to 7830. [2024-11-11 21:46:56,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7830 states, 7829 states have (on average 1.6157874568910462) internal successors, (12650), 7829 states have internal predecessors, (12650), 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 21:46:56,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7830 states to 7830 states and 12650 transitions. [2024-11-11 21:46:56,490 INFO L78 Accepts]: Start accepts. Automaton has 7830 states and 12650 transitions. Word has length 64 [2024-11-11 21:46:56,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:46:56,490 INFO L471 AbstractCegarLoop]: Abstraction has 7830 states and 12650 transitions. [2024-11-11 21:46:56,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 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 21:46:56,491 INFO L276 IsEmpty]: Start isEmpty. Operand 7830 states and 12650 transitions. [2024-11-11 21:46:56,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 21:46:56,491 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:46:56,492 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 21:46:56,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 21:46:56,492 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:46:56,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:46:56,493 INFO L85 PathProgramCache]: Analyzing trace with hash -988361583, now seen corresponding path program 1 times [2024-11-11 21:46:56,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:46:56,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249804857] [2024-11-11 21:46:56,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:46:56,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:46:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:46:56,579 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 21:46:56,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:46:56,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249804857] [2024-11-11 21:46:56,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249804857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:46:56,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:46:56,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:46:56,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983998222] [2024-11-11 21:46:56,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:46:56,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 21:46:56,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:46:56,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 21:46:56,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 21:46:56,582 INFO L87 Difference]: Start difference. First operand 7830 states and 12650 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 21:46:56,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:46:56,709 INFO L93 Difference]: Finished difference Result 24459 states and 39607 transitions. [2024-11-11 21:46:56,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 21:46:56,710 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 21:46:56,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:46:56,743 INFO L225 Difference]: With dead ends: 24459 [2024-11-11 21:46:56,743 INFO L226 Difference]: Without dead ends: 16714 [2024-11-11 21:46:56,756 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 21:46:56,757 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 427 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:46:56,757 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 716 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:46:56,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16714 states. [2024-11-11 21:46:56,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16714 to 12229. [2024-11-11 21:46:57,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12229 states, 12228 states have (on average 1.6075400719659798) internal successors, (19657), 12228 states have internal predecessors, (19657), 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 21:46:57,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12229 states to 12229 states and 19657 transitions. [2024-11-11 21:46:57,034 INFO L78 Accepts]: Start accepts. Automaton has 12229 states and 19657 transitions. Word has length 65 [2024-11-11 21:46:57,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:46:57,034 INFO L471 AbstractCegarLoop]: Abstraction has 12229 states and 19657 transitions. [2024-11-11 21:46:57,035 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 21:46:57,035 INFO L276 IsEmpty]: Start isEmpty. Operand 12229 states and 19657 transitions. [2024-11-11 21:46:57,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-11 21:46:57,037 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:46:57,037 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 21:46:57,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 21:46:57,038 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:46:57,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:46:57,038 INFO L85 PathProgramCache]: Analyzing trace with hash -2145020638, now seen corresponding path program 1 times [2024-11-11 21:46:57,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:46:57,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119211837] [2024-11-11 21:46:57,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:46:57,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:46:57,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:46:57,282 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 21:46:57,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:46:57,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119211837] [2024-11-11 21:46:57,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119211837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:46:57,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:46:57,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 21:46:57,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930723841] [2024-11-11 21:46:57,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:46:57,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:46:57,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:46:57,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:46:57,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:46:57,283 INFO L87 Difference]: Start difference. First operand 12229 states and 19657 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 21:46:57,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:46:57,398 INFO L93 Difference]: Finished difference Result 24375 states and 39196 transitions. [2024-11-11 21:46:57,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:46:57,398 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 21:46:57,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:46:57,420 INFO L225 Difference]: With dead ends: 24375 [2024-11-11 21:46:57,420 INFO L226 Difference]: Without dead ends: 12231 [2024-11-11 21:46:57,433 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-11 21:46:57,434 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 120 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:46:57,434 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 776 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:46:57,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12231 states. [2024-11-11 21:46:57,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12231 to 12229. [2024-11-11 21:46:57,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12229 states, 12228 states have (on average 1.597317631665031) internal successors, (19532), 12228 states have internal predecessors, (19532), 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 21:46:57,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12229 states to 12229 states and 19532 transitions. [2024-11-11 21:46:57,628 INFO L78 Accepts]: Start accepts. Automaton has 12229 states and 19532 transitions. Word has length 67 [2024-11-11 21:46:57,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:46:57,629 INFO L471 AbstractCegarLoop]: Abstraction has 12229 states and 19532 transitions. [2024-11-11 21:46:57,629 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 21:46:57,629 INFO L276 IsEmpty]: Start isEmpty. Operand 12229 states and 19532 transitions. [2024-11-11 21:46:57,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-11 21:46:57,630 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:46:57,630 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 21:46:57,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 21:46:57,630 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:46:57,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:46:57,633 INFO L85 PathProgramCache]: Analyzing trace with hash 460006403, now seen corresponding path program 1 times [2024-11-11 21:46:57,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:46:57,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222767133] [2024-11-11 21:46:57,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:46:57,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:46:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:46:57,803 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 21:46:57,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:46:57,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222767133] [2024-11-11 21:46:57,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222767133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:46:57,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:46:57,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 21:46:57,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135887978] [2024-11-11 21:46:57,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:46:57,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:46:57,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:46:57,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:46:57,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:46:57,805 INFO L87 Difference]: Start difference. First operand 12229 states and 19532 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 21:46:58,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:46:58,016 INFO L93 Difference]: Finished difference Result 35007 states and 56056 transitions. [2024-11-11 21:46:58,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:46:58,017 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 21:46:58,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:46:58,056 INFO L225 Difference]: With dead ends: 35007 [2024-11-11 21:46:58,057 INFO L226 Difference]: Without dead ends: 22863 [2024-11-11 21:46:58,076 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-11 21:46:58,077 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 235 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:46:58,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 595 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:46:58,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22863 states. [2024-11-11 21:46:58,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22863 to 22861. [2024-11-11 21:46:58,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22861 states, 22860 states have (on average 1.585870516185477) internal successors, (36253), 22860 states have internal predecessors, (36253), 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 21:46:58,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22861 states to 22861 states and 36253 transitions. [2024-11-11 21:46:58,573 INFO L78 Accepts]: Start accepts. Automaton has 22861 states and 36253 transitions. Word has length 70 [2024-11-11 21:46:58,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:46:58,576 INFO L471 AbstractCegarLoop]: Abstraction has 22861 states and 36253 transitions. [2024-11-11 21:46:58,577 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 21:46:58,577 INFO L276 IsEmpty]: Start isEmpty. Operand 22861 states and 36253 transitions. [2024-11-11 21:46:58,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-11 21:46:58,577 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:46:58,577 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 21:46:58,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 21:46:58,578 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:46:58,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:46:58,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1373387295, now seen corresponding path program 1 times [2024-11-11 21:46:58,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:46:58,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127498217] [2024-11-11 21:46:58,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:46:58,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:46:58,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:46:58,943 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 21:46:58,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:46:58,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127498217] [2024-11-11 21:46:58,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127498217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:46:58,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:46:58,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 21:46:58,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071285382] [2024-11-11 21:46:58,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:46:58,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:46:58,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:46:58,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:46:58,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:46:58,945 INFO L87 Difference]: Start difference. First operand 22861 states and 36253 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 21:46:59,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:46:59,031 INFO L93 Difference]: Finished difference Result 23587 states and 37340 transitions. [2024-11-11 21:46:59,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:46:59,031 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 21:46:59,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:46:59,066 INFO L225 Difference]: With dead ends: 23587 [2024-11-11 21:46:59,066 INFO L226 Difference]: Without dead ends: 23585 [2024-11-11 21:46:59,077 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 21:46:59,078 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 0 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:46:59,079 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 843 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:46:59,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23585 states. [2024-11-11 21:46:59,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23585 to 23585. [2024-11-11 21:46:59,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23585 states, 23584 states have (on average 1.567503392130258) internal successors, (36968), 23584 states have internal predecessors, (36968), 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 21:46:59,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23585 states to 23585 states and 36968 transitions. [2024-11-11 21:46:59,367 INFO L78 Accepts]: Start accepts. Automaton has 23585 states and 36968 transitions. Word has length 71 [2024-11-11 21:46:59,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:46:59,367 INFO L471 AbstractCegarLoop]: Abstraction has 23585 states and 36968 transitions. [2024-11-11 21:46:59,367 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 21:46:59,367 INFO L276 IsEmpty]: Start isEmpty. Operand 23585 states and 36968 transitions. [2024-11-11 21:46:59,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-11 21:46:59,442 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:46:59,443 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:46:59,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-11 21:46:59,443 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:46:59,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:46:59,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1977084468, now seen corresponding path program 1 times [2024-11-11 21:46:59,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:46:59,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53098656] [2024-11-11 21:46:59,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:46:59,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:46:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:46:59,618 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-11 21:46:59,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:46:59,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53098656] [2024-11-11 21:46:59,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53098656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:46:59,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:46:59,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 21:46:59,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312649071] [2024-11-11 21:46:59,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:46:59,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:46:59,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:46:59,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:46:59,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:46:59,620 INFO L87 Difference]: Start difference. First operand 23585 states and 36968 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 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 21:46:59,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:46:59,867 INFO L93 Difference]: Finished difference Result 57661 states and 90684 transitions. [2024-11-11 21:46:59,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:46:59,867 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 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 95 [2024-11-11 21:46:59,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:46:59,936 INFO L225 Difference]: With dead ends: 57661 [2024-11-11 21:46:59,937 INFO L226 Difference]: Without dead ends: 46299 [2024-11-11 21:46:59,961 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 21:46:59,962 INFO L435 NwaCegarLoop]: 348 mSDtfsCounter, 544 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:46:59,962 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 1063 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:46:59,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46299 states. [2024-11-11 21:47:00,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46299 to 36193. [2024-11-11 21:47:00,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36193 states, 36192 states have (on average 1.5653183023872679) internal successors, (56652), 36192 states have internal predecessors, (56652), 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 21:47:00,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36193 states to 36193 states and 56652 transitions. [2024-11-11 21:47:00,534 INFO L78 Accepts]: Start accepts. Automaton has 36193 states and 56652 transitions. Word has length 95 [2024-11-11 21:47:00,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:47:00,535 INFO L471 AbstractCegarLoop]: Abstraction has 36193 states and 56652 transitions. [2024-11-11 21:47:00,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 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 21:47:00,535 INFO L276 IsEmpty]: Start isEmpty. Operand 36193 states and 56652 transitions. [2024-11-11 21:47:00,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-11 21:47:00,537 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:47:00,537 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:47:00,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 21:47:00,537 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:47:00,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:47:00,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1290194386, now seen corresponding path program 1 times [2024-11-11 21:47:00,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:47:00,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095242028] [2024-11-11 21:47:00,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:47:00,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:47:00,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:47:00,772 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-11 21:47:00,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:47:00,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095242028] [2024-11-11 21:47:00,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095242028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:47:00,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:47:00,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 21:47:00,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710051311] [2024-11-11 21:47:00,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:47:00,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:47:00,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:47:00,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:47:00,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:47:00,775 INFO L87 Difference]: Start difference. First operand 36193 states and 56652 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 21:47:00,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:47:00,991 INFO L93 Difference]: Finished difference Result 64663 states and 101696 transitions. [2024-11-11 21:47:00,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:47:00,992 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 95 [2024-11-11 21:47:00,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:47:01,069 INFO L225 Difference]: With dead ends: 64663 [2024-11-11 21:47:01,069 INFO L226 Difference]: Without dead ends: 53531 [2024-11-11 21:47:01,093 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 21:47:01,094 INFO L435 NwaCegarLoop]: 352 mSDtfsCounter, 551 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:47:01,094 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 977 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:47:01,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53531 states. [2024-11-11 21:47:01,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53531 to 49013. [2024-11-11 21:47:01,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49013 states, 49012 states have (on average 1.5667183546886476) internal successors, (76788), 49012 states have internal predecessors, (76788), 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 21:47:02,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49013 states to 49013 states and 76788 transitions. [2024-11-11 21:47:02,026 INFO L78 Accepts]: Start accepts. Automaton has 49013 states and 76788 transitions. Word has length 95 [2024-11-11 21:47:02,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:47:02,026 INFO L471 AbstractCegarLoop]: Abstraction has 49013 states and 76788 transitions. [2024-11-11 21:47:02,027 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 21:47:02,027 INFO L276 IsEmpty]: Start isEmpty. Operand 49013 states and 76788 transitions. [2024-11-11 21:47:02,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-11 21:47:02,028 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:47:02,029 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:47:02,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-11 21:47:02,029 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:47:02,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:47:02,029 INFO L85 PathProgramCache]: Analyzing trace with hash 349220336, now seen corresponding path program 1 times [2024-11-11 21:47:02,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:47:02,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880739203] [2024-11-11 21:47:02,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:47:02,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:47:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:47:02,147 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-11 21:47:02,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:47:02,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880739203] [2024-11-11 21:47:02,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880739203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:47:02,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:47:02,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 21:47:02,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879208474] [2024-11-11 21:47:02,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:47:02,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:47:02,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:47:02,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:47:02,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:47:02,151 INFO L87 Difference]: Start difference. First operand 49013 states and 76788 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 21:47:02,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:47:02,572 INFO L93 Difference]: Finished difference Result 69083 states and 108644 transitions. [2024-11-11 21:47:02,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:47:02,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 21:47:02,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:47:02,670 INFO L225 Difference]: With dead ends: 69083 [2024-11-11 21:47:02,670 INFO L226 Difference]: Without dead ends: 57951 [2024-11-11 21:47:02,698 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 21:47:02,700 INFO L435 NwaCegarLoop]: 355 mSDtfsCounter, 554 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 21:47:02,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 1066 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 21:47:02,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57951 states. [2024-11-11 21:47:03,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57951 to 56153. [2024-11-11 21:47:03,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56153 states, 56152 states have (on average 1.5683145747257443) internal successors, (88064), 56152 states have internal predecessors, (88064), 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 21:47:03,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56153 states to 56153 states and 88064 transitions. [2024-11-11 21:47:03,516 INFO L78 Accepts]: Start accepts. Automaton has 56153 states and 88064 transitions. Word has length 95 [2024-11-11 21:47:03,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:47:03,517 INFO L471 AbstractCegarLoop]: Abstraction has 56153 states and 88064 transitions. [2024-11-11 21:47:03,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 21:47:03,517 INFO L276 IsEmpty]: Start isEmpty. Operand 56153 states and 88064 transitions. [2024-11-11 21:47:03,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-11 21:47:03,519 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:47:03,519 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:47:03,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-11 21:47:03,520 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:47:03,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:47:03,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1097572160, now seen corresponding path program 1 times [2024-11-11 21:47:03,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:47:03,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923072543] [2024-11-11 21:47:03,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:47:03,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:47:03,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:47:03,615 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-11 21:47:03,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:47:03,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923072543] [2024-11-11 21:47:03,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923072543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:47:03,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:47:03,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:47:03,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881818684] [2024-11-11 21:47:03,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:47:03,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 21:47:03,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:47:03,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 21:47:03,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-11 21:47:03,617 INFO L87 Difference]: Start difference. First operand 56153 states and 88064 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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 21:47:04,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:47:04,076 INFO L93 Difference]: Finished difference Result 91416 states and 144033 transitions. [2024-11-11 21:47:04,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 21:47:04,076 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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 96 [2024-11-11 21:47:04,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:47:04,181 INFO L225 Difference]: With dead ends: 91416 [2024-11-11 21:47:04,181 INFO L226 Difference]: Without dead ends: 72822 [2024-11-11 21:47:04,207 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 21:47:04,208 INFO L435 NwaCegarLoop]: 347 mSDtfsCounter, 241 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:47:04,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 751 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:47:04,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72822 states. [2024-11-11 21:47:05,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72822 to 71026. [2024-11-11 21:47:05,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71026 states, 71025 states have (on average 1.5684899683210136) internal successors, (111402), 71025 states have internal predecessors, (111402), 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 21:47:05,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71026 states to 71026 states and 111402 transitions. [2024-11-11 21:47:05,400 INFO L78 Accepts]: Start accepts. Automaton has 71026 states and 111402 transitions. Word has length 96 [2024-11-11 21:47:05,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:47:05,400 INFO L471 AbstractCegarLoop]: Abstraction has 71026 states and 111402 transitions. [2024-11-11 21:47:05,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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 21:47:05,400 INFO L276 IsEmpty]: Start isEmpty. Operand 71026 states and 111402 transitions. [2024-11-11 21:47:05,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-11 21:47:05,402 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:47:05,402 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:47:05,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-11 21:47:05,402 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:47:05,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:47:05,403 INFO L85 PathProgramCache]: Analyzing trace with hash 748884206, now seen corresponding path program 1 times [2024-11-11 21:47:05,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:47:05,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822089207] [2024-11-11 21:47:05,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:47:05,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:47:05,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:47:05,462 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-11 21:47:05,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:47:05,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822089207] [2024-11-11 21:47:05,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822089207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:47:05,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:47:05,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:47:05,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424053326] [2024-11-11 21:47:05,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:47:05,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:47:05,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:47:05,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:47:05,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:47:05,464 INFO L87 Difference]: Start difference. First operand 71026 states and 111402 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 21:47:06,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:47:06,167 INFO L93 Difference]: Finished difference Result 153118 states and 240882 transitions. [2024-11-11 21:47:06,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:47:06,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 96 [2024-11-11 21:47:06,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:47:06,347 INFO L225 Difference]: With dead ends: 153118 [2024-11-11 21:47:06,347 INFO L226 Difference]: Without dead ends: 119820 [2024-11-11 21:47:06,385 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 21:47:06,386 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 110 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 398 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 21:47:06,387 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 398 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:47:06,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119820 states. [2024-11-11 21:47:07,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119820 to 119542. [2024-11-11 21:47:07,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119542 states, 119541 states have (on average 1.5682736466986222) internal successors, (187473), 119541 states have internal predecessors, (187473), 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 21:47:08,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119542 states to 119542 states and 187473 transitions. [2024-11-11 21:47:08,055 INFO L78 Accepts]: Start accepts. Automaton has 119542 states and 187473 transitions. Word has length 96 [2024-11-11 21:47:08,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:47:08,055 INFO L471 AbstractCegarLoop]: Abstraction has 119542 states and 187473 transitions. [2024-11-11 21:47:08,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 21:47:08,056 INFO L276 IsEmpty]: Start isEmpty. Operand 119542 states and 187473 transitions. [2024-11-11 21:47:08,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-11 21:47:08,059 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:47:08,059 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:47:08,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-11 21:47:08,059 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:47:08,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:47:08,060 INFO L85 PathProgramCache]: Analyzing trace with hash 894607584, now seen corresponding path program 1 times [2024-11-11 21:47:08,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:47:08,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322426060] [2024-11-11 21:47:08,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:47:08,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:47:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:47:08,128 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:47:08,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:47:08,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322426060] [2024-11-11 21:47:08,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322426060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:47:08,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:47:08,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:47:08,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110345999] [2024-11-11 21:47:08,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:47:08,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:47:08,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:47:08,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:47:08,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:47:08,130 INFO L87 Difference]: Start difference. First operand 119542 states and 187473 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 21:47:09,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:47:09,470 INFO L93 Difference]: Finished difference Result 351456 states and 550566 transitions. [2024-11-11 21:47:09,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:47:09,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 97 [2024-11-11 21:47:09,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:47:09,865 INFO L225 Difference]: With dead ends: 351456 [2024-11-11 21:47:09,865 INFO L226 Difference]: Without dead ends: 231999 [2024-11-11 21:47:09,960 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 21:47:09,960 INFO L435 NwaCegarLoop]: 315 mSDtfsCounter, 165 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 525 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 21:47:09,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 525 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:47:10,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231999 states. [2024-11-11 21:47:12,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231999 to 231997. [2024-11-11 21:47:12,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231997 states, 231996 states have (on average 1.5560742426593561) internal successors, (361003), 231996 states have internal predecessors, (361003), 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 21:47:14,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231997 states to 231997 states and 361003 transitions. [2024-11-11 21:47:14,001 INFO L78 Accepts]: Start accepts. Automaton has 231997 states and 361003 transitions. Word has length 97 [2024-11-11 21:47:14,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:47:14,001 INFO L471 AbstractCegarLoop]: Abstraction has 231997 states and 361003 transitions. [2024-11-11 21:47:14,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 21:47:14,002 INFO L276 IsEmpty]: Start isEmpty. Operand 231997 states and 361003 transitions. [2024-11-11 21:47:14,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-11 21:47:14,009 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:47:14,009 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:47:14,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-11 21:47:14,012 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:47:14,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:47:14,013 INFO L85 PathProgramCache]: Analyzing trace with hash 643803213, now seen corresponding path program 1 times [2024-11-11 21:47:14,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:47:14,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846366076] [2024-11-11 21:47:14,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:47:14,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:47:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:47:14,191 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:47:14,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:47:14,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846366076] [2024-11-11 21:47:14,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846366076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:47:14,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:47:14,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:47:14,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622973215] [2024-11-11 21:47:14,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:47:14,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:47:14,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:47:14,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:47:14,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:47:14,193 INFO L87 Difference]: Start difference. First operand 231997 states and 361003 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 21:47:15,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:47:15,439 INFO L93 Difference]: Finished difference Result 429297 states and 668773 transitions. [2024-11-11 21:47:15,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:47:15,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 97 [2024-11-11 21:47:15,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:47:16,524 INFO L225 Difference]: With dead ends: 429297 [2024-11-11 21:47:16,524 INFO L226 Difference]: Without dead ends: 197457 [2024-11-11 21:47:16,623 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 21:47:16,624 INFO L435 NwaCegarLoop]: 284 mSDtfsCounter, 94 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:47:16,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 482 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:47:16,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197457 states. [2024-11-11 21:47:18,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197457 to 197006. [2024-11-11 21:47:19,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197006 states, 197005 states have (on average 1.5506814547854115) internal successors, (305492), 197005 states have internal predecessors, (305492), 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 21:47:19,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197006 states to 197006 states and 305492 transitions. [2024-11-11 21:47:19,462 INFO L78 Accepts]: Start accepts. Automaton has 197006 states and 305492 transitions. Word has length 97 [2024-11-11 21:47:19,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:47:19,462 INFO L471 AbstractCegarLoop]: Abstraction has 197006 states and 305492 transitions. [2024-11-11 21:47:19,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 21:47:19,463 INFO L276 IsEmpty]: Start isEmpty. Operand 197006 states and 305492 transitions. [2024-11-11 21:47:19,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-11 21:47:19,465 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:47:19,466 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:47:19,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-11 21:47:19,466 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:47:19,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:47:19,466 INFO L85 PathProgramCache]: Analyzing trace with hash -297170837, now seen corresponding path program 1 times [2024-11-11 21:47:19,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:47:19,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924819988] [2024-11-11 21:47:19,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:47:19,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:47:19,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:47:19,591 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:47:19,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:47:19,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924819988] [2024-11-11 21:47:19,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924819988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:47:19,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:47:19,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:47:19,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067505733] [2024-11-11 21:47:19,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:47:19,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:47:19,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:47:19,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:47:19,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:47:19,593 INFO L87 Difference]: Start difference. First operand 197006 states and 305492 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 21:47:21,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:47:21,156 INFO L93 Difference]: Finished difference Result 279668 states and 433920 transitions. [2024-11-11 21:47:21,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:47:21,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 97 [2024-11-11 21:47:21,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:47:21,322 INFO L225 Difference]: With dead ends: 279668 [2024-11-11 21:47:21,322 INFO L226 Difference]: Without dead ends: 82821 [2024-11-11 21:47:21,405 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 21:47:21,406 INFO L435 NwaCegarLoop]: 259 mSDtfsCounter, 81 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:47:21,406 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 433 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:47:21,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82821 states. [2024-11-11 21:47:22,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82821 to 82690. [2024-11-11 21:47:22,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82690 states, 82689 states have (on average 1.5442924693731934) internal successors, (127696), 82689 states have internal predecessors, (127696), 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 21:47:22,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82690 states to 82690 states and 127696 transitions. [2024-11-11 21:47:22,731 INFO L78 Accepts]: Start accepts. Automaton has 82690 states and 127696 transitions. Word has length 97 [2024-11-11 21:47:22,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:47:22,732 INFO L471 AbstractCegarLoop]: Abstraction has 82690 states and 127696 transitions. [2024-11-11 21:47:22,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 21:47:22,732 INFO L276 IsEmpty]: Start isEmpty. Operand 82690 states and 127696 transitions. [2024-11-11 21:47:22,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-11 21:47:22,733 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:47:22,733 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:47:22,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-11 21:47:22,734 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:47:22,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:47:22,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1026423945, now seen corresponding path program 1 times [2024-11-11 21:47:22,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:47:22,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573811004] [2024-11-11 21:47:22,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:47:22,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:47:22,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:47:22,823 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:47:22,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:47:22,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573811004] [2024-11-11 21:47:22,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573811004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:47:22,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:47:22,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:47:22,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258482018] [2024-11-11 21:47:22,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:47:22,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:47:22,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:47:22,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:47:22,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:47:22,826 INFO L87 Difference]: Start difference. First operand 82690 states and 127696 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 21:47:23,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:47:23,069 INFO L93 Difference]: Finished difference Result 121185 states and 187277 transitions. [2024-11-11 21:47:23,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:47:23,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 97 [2024-11-11 21:47:23,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:47:23,115 INFO L225 Difference]: With dead ends: 121185 [2024-11-11 21:47:23,115 INFO L226 Difference]: Without dead ends: 38654 [2024-11-11 21:47:23,161 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 21:47:23,162 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 68 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:47:23,162 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 384 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:47:23,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38654 states. [2024-11-11 21:47:23,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38654 to 38644. [2024-11-11 21:47:23,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38644 states, 38643 states have (on average 1.5379758300339001) internal successors, (59432), 38643 states have internal predecessors, (59432), 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 21:47:23,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38644 states to 38644 states and 59432 transitions. [2024-11-11 21:47:23,522 INFO L78 Accepts]: Start accepts. Automaton has 38644 states and 59432 transitions. Word has length 97 [2024-11-11 21:47:23,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:47:23,523 INFO L471 AbstractCegarLoop]: Abstraction has 38644 states and 59432 transitions. [2024-11-11 21:47:23,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 21:47:23,523 INFO L276 IsEmpty]: Start isEmpty. Operand 38644 states and 59432 transitions. [2024-11-11 21:47:23,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-11 21:47:23,524 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:47:23,524 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:47:23,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-11 21:47:23,524 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:47:23,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:47:23,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1561386850, now seen corresponding path program 1 times [2024-11-11 21:47:23,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:47:23,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10706289] [2024-11-11 21:47:23,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:47:23,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:47:23,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:47:24,106 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-11 21:47:24,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:47:24,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10706289] [2024-11-11 21:47:24,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10706289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:47:24,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:47:24,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:47:24,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336385434] [2024-11-11 21:47:24,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:47:24,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 21:47:24,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:47:24,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 21:47:24,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 21:47:24,107 INFO L87 Difference]: Start difference. First operand 38644 states and 59432 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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 21:47:24,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:47:24,332 INFO L93 Difference]: Finished difference Result 94900 states and 145755 transitions. [2024-11-11 21:47:24,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:47:24,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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 98 [2024-11-11 21:47:24,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:47:24,425 INFO L225 Difference]: With dead ends: 94900 [2024-11-11 21:47:24,425 INFO L226 Difference]: Without dead ends: 70646 [2024-11-11 21:47:24,458 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 21:47:24,458 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 403 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:47:24,458 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 628 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:47:24,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70646 states. [2024-11-11 21:47:25,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70646 to 61074. [2024-11-11 21:47:25,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61074 states, 61073 states have (on average 1.5364563718828288) internal successors, (93836), 61073 states have internal predecessors, (93836), 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 21:47:25,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61074 states to 61074 states and 93836 transitions. [2024-11-11 21:47:25,431 INFO L78 Accepts]: Start accepts. Automaton has 61074 states and 93836 transitions. Word has length 98 [2024-11-11 21:47:25,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:47:25,431 INFO L471 AbstractCegarLoop]: Abstraction has 61074 states and 93836 transitions. [2024-11-11 21:47:25,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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 21:47:25,431 INFO L276 IsEmpty]: Start isEmpty. Operand 61074 states and 93836 transitions. [2024-11-11 21:47:25,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-11 21:47:25,432 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:47:25,432 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:47:25,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-11 21:47:25,433 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:47:25,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:47:25,433 INFO L85 PathProgramCache]: Analyzing trace with hash 113517716, now seen corresponding path program 1 times [2024-11-11 21:47:25,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:47:25,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509751067] [2024-11-11 21:47:25,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:47:25,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:47:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:47:25,688 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-11 21:47:25,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:47:25,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509751067] [2024-11-11 21:47:25,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509751067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:47:25,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:47:25,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:47:25,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58763215] [2024-11-11 21:47:25,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:47:25,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 21:47:25,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:47:25,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 21:47:25,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 21:47:25,691 INFO L87 Difference]: Start difference. First operand 61074 states and 93836 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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 21:47:26,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:47:26,125 INFO L93 Difference]: Finished difference Result 145877 states and 224444 transitions. [2024-11-11 21:47:26,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:47:26,126 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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 98 [2024-11-11 21:47:26,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:47:26,281 INFO L225 Difference]: With dead ends: 145877 [2024-11-11 21:47:26,281 INFO L226 Difference]: Without dead ends: 101361 [2024-11-11 21:47:26,338 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 21:47:26,338 INFO L435 NwaCegarLoop]: 260 mSDtfsCounter, 392 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:47:26,338 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 602 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:47:26,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101361 states. [2024-11-11 21:47:27,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101361 to 92570. [2024-11-11 21:47:27,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92570 states, 92569 states have (on average 1.5346606315289135) internal successors, (142062), 92569 states have internal predecessors, (142062), 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 21:47:27,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92570 states to 92570 states and 142062 transitions. [2024-11-11 21:47:27,697 INFO L78 Accepts]: Start accepts. Automaton has 92570 states and 142062 transitions. Word has length 98 [2024-11-11 21:47:27,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:47:27,697 INFO L471 AbstractCegarLoop]: Abstraction has 92570 states and 142062 transitions. [2024-11-11 21:47:27,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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 21:47:27,698 INFO L276 IsEmpty]: Start isEmpty. Operand 92570 states and 142062 transitions. [2024-11-11 21:47:27,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-11 21:47:27,698 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:47:27,698 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:47:27,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-11 21:47:27,699 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:47:27,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:47:27,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1343932737, now seen corresponding path program 1 times [2024-11-11 21:47:27,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:47:27,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75070378] [2024-11-11 21:47:27,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:47:27,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:47:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:47:27,756 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-11 21:47:27,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:47:27,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75070378] [2024-11-11 21:47:27,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75070378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:47:27,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:47:27,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:47:27,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555877880] [2024-11-11 21:47:27,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:47:27,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:47:27,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:47:27,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:47:27,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:47:27,757 INFO L87 Difference]: Start difference. First operand 92570 states and 142062 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 21:47:28,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:47:28,711 INFO L93 Difference]: Finished difference Result 211786 states and 325480 transitions. [2024-11-11 21:47:28,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:47:28,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 100 [2024-11-11 21:47:28,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:47:28,961 INFO L225 Difference]: With dead ends: 211786 [2024-11-11 21:47:28,961 INFO L226 Difference]: Without dead ends: 156952 [2024-11-11 21:47:28,989 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 21:47:28,989 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 98 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 396 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 21:47:28,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 396 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:47:29,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156952 states. [2024-11-11 21:47:30,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156952 to 156684. [2024-11-11 21:47:30,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156684 states, 156683 states have (on average 1.5332103674297786) internal successors, (240228), 156683 states have internal predecessors, (240228), 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 21:47:30,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156684 states to 156684 states and 240228 transitions. [2024-11-11 21:47:30,600 INFO L78 Accepts]: Start accepts. Automaton has 156684 states and 240228 transitions. Word has length 100 [2024-11-11 21:47:30,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:47:30,600 INFO L471 AbstractCegarLoop]: Abstraction has 156684 states and 240228 transitions. [2024-11-11 21:47:30,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 21:47:30,600 INFO L276 IsEmpty]: Start isEmpty. Operand 156684 states and 240228 transitions. [2024-11-11 21:47:30,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-11 21:47:30,601 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:47:30,601 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:47:30,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-11 21:47:30,601 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:47:30,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:47:30,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1099218765, now seen corresponding path program 1 times [2024-11-11 21:47:30,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:47:30,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961739402] [2024-11-11 21:47:30,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:47:30,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:47:30,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:47:30,678 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-11 21:47:30,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:47:30,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961739402] [2024-11-11 21:47:30,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961739402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:47:30,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:47:30,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:47:30,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086753891] [2024-11-11 21:47:30,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:47:30,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 21:47:30,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:47:30,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 21:47:30,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-11 21:47:30,680 INFO L87 Difference]: Start difference. First operand 156684 states and 240228 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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 21:47:31,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:47:31,921 INFO L93 Difference]: Finished difference Result 259578 states and 399189 transitions. [2024-11-11 21:47:31,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 21:47:31,922 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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 100 [2024-11-11 21:47:31,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:47:32,271 INFO L225 Difference]: With dead ends: 259578 [2024-11-11 21:47:32,271 INFO L226 Difference]: Without dead ends: 206210 [2024-11-11 21:47:32,354 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 21:47:32,354 INFO L435 NwaCegarLoop]: 350 mSDtfsCounter, 257 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:47:32,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 693 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:47:32,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206210 states.