./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+lhb-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 f4332eab059a2e63fe2129905a86c0f1576ab7a248b3300f50ebbc0c52549386 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 20:23:18,354 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 20:23:18,410 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 20:23:18,414 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 20:23:18,415 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 20:23:18,441 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 20:23:18,442 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 20:23:18,442 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 20:23:18,443 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 20:23:18,444 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 20:23:18,444 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 20:23:18,444 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 20:23:18,445 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 20:23:18,445 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 20:23:18,445 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 20:23:18,445 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 20:23:18,446 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 20:23:18,446 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 20:23:18,446 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 20:23:18,448 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 20:23:18,448 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 20:23:18,449 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 20:23:18,449 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 20:23:18,449 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 20:23:18,449 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 20:23:18,449 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 20:23:18,449 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 20:23:18,450 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 20:23:18,450 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 20:23:18,450 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 20:23:18,450 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 20:23:18,450 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 20:23:18,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 20:23:18,451 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 20:23:18,451 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 20:23:18,451 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 20:23:18,451 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 20:23:18,451 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 20:23:18,451 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 20:23:18,452 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 20:23:18,452 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 20:23:18,457 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 20:23:18,457 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4332eab059a2e63fe2129905a86c0f1576ab7a248b3300f50ebbc0c52549386 [2024-10-12 20:23:18,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 20:23:18,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 20:23:18,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 20:23:18,713 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 20:23:18,713 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 20:23:18,714 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2024-10-12 20:23:19,978 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 20:23:20,456 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 20:23:20,457 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2024-10-12 20:23:20,514 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80cb73f63/a2e75c6d6b294c8ba454c12835006577/FLAGf02e6efd5 [2024-10-12 20:23:20,529 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80cb73f63/a2e75c6d6b294c8ba454c12835006577 [2024-10-12 20:23:20,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 20:23:20,534 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 20:23:20,534 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 20:23:20,535 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 20:23:20,539 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 20:23:20,540 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:23:20" (1/1) ... [2024-10-12 20:23:20,541 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c7e94c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:20, skipping insertion in model container [2024-10-12 20:23:20,541 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:23:20" (1/1) ... [2024-10-12 20:23:20,711 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 20:23:21,107 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[20004,20017] [2024-10-12 20:23:21,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 20:23:22,024 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 20:23:22,062 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[20004,20017] [2024-10-12 20:23:22,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 20:23:22,729 INFO L204 MainTranslator]: Completed translation [2024-10-12 20:23:22,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:22 WrapperNode [2024-10-12 20:23:22,730 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 20:23:22,731 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 20:23:22,731 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 20:23:22,731 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 20:23:22,737 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:22" (1/1) ... [2024-10-12 20:23:22,813 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:22" (1/1) ... [2024-10-12 20:23:23,183 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21783 [2024-10-12 20:23:23,184 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 20:23:23,185 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 20:23:23,185 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 20:23:23,185 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 20:23:23,195 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:22" (1/1) ... [2024-10-12 20:23:23,196 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:22" (1/1) ... [2024-10-12 20:23:23,251 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:22" (1/1) ... [2024-10-12 20:23:23,444 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]. [2024-10-12 20:23:23,444 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:22" (1/1) ... [2024-10-12 20:23:23,444 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:22" (1/1) ... [2024-10-12 20:23:23,576 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:22" (1/1) ... [2024-10-12 20:23:23,619 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:22" (1/1) ... [2024-10-12 20:23:23,644 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:22" (1/1) ... [2024-10-12 20:23:23,671 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:22" (1/1) ... [2024-10-12 20:23:23,735 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 20:23:23,736 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 20:23:23,737 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 20:23:23,737 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 20:23:23,737 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:22" (1/1) ... [2024-10-12 20:23:23,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 20:23:23,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:23:23,844 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) [2024-10-12 20:23:23,857 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 [2024-10-12 20:23:23,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 20:23:23,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 20:23:23,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 20:23:23,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 20:23:24,440 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 20:23:24,442 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 20:23:30,666 INFO L? ?]: Removed 3503 outVars from TransFormulas that were not future-live. [2024-10-12 20:23:30,667 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 20:23:30,811 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 20:23:30,812 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-12 20:23:30,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:23:30 BoogieIcfgContainer [2024-10-12 20:23:30,812 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 20:23:30,818 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 20:23:30,819 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 20:23:30,825 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 20:23:30,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 08:23:20" (1/3) ... [2024-10-12 20:23:30,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a4cca87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:23:30, skipping insertion in model container [2024-10-12 20:23:30,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:23:22" (2/3) ... [2024-10-12 20:23:30,831 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a4cca87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:23:30, skipping insertion in model container [2024-10-12 20:23:30,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:23:30" (3/3) ... [2024-10-12 20:23:30,834 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2024-10-12 20:23:30,848 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 20:23:30,848 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 20:23:30,963 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 20:23:30,972 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;@684b9299, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 20:23:30,972 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 20:23:30,987 INFO L276 IsEmpty]: Start isEmpty. Operand has 2873 states, 2871 states have (on average 1.907697666318356) internal successors, (5477), 2872 states have internal predecessors, (5477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:31,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-12 20:23:31,024 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:31,024 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:23:31,025 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:31,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:31,030 INFO L85 PathProgramCache]: Analyzing trace with hash -924201457, now seen corresponding path program 1 times [2024-10-12 20:23:31,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:31,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173240573] [2024-10-12 20:23:31,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:31,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:31,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:31,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:31,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:31,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173240573] [2024-10-12 20:23:31,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173240573] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:31,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:31,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:23:31,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709809133] [2024-10-12 20:23:31,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:31,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:23:31,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:31,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:23:31,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:23:31,756 INFO L87 Difference]: Start difference. First operand has 2873 states, 2871 states have (on average 1.907697666318356) internal successors, (5477), 2872 states have internal predecessors, (5477), 0 states have call successors, (0), 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 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:33,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:33,340 INFO L93 Difference]: Finished difference Result 4235 states and 7963 transitions. [2024-10-12 20:23:33,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:23:33,346 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-10-12 20:23:33,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:33,369 INFO L225 Difference]: With dead ends: 4235 [2024-10-12 20:23:33,370 INFO L226 Difference]: Without dead ends: 2291 [2024-10-12 20:23:33,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:23:33,383 INFO L432 NwaCegarLoop]: 2660 mSDtfsCounter, 12354 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12354 SdHoareTripleChecker+Valid, 2929 SdHoareTripleChecker+Invalid, 1423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:33,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12354 Valid, 2929 Invalid, 1423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-12 20:23:33,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2024-10-12 20:23:33,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 2289. [2024-10-12 20:23:33,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2289 states, 2288 states have (on average 1.2963286713286712) internal successors, (2966), 2288 states have internal predecessors, (2966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:33,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2289 states to 2289 states and 2966 transitions. [2024-10-12 20:23:33,500 INFO L78 Accepts]: Start accepts. Automaton has 2289 states and 2966 transitions. Word has length 78 [2024-10-12 20:23:33,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:33,500 INFO L471 AbstractCegarLoop]: Abstraction has 2289 states and 2966 transitions. [2024-10-12 20:23:33,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:33,501 INFO L276 IsEmpty]: Start isEmpty. Operand 2289 states and 2966 transitions. [2024-10-12 20:23:33,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-12 20:23:33,505 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:33,505 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:23:33,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 20:23:33,506 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:33,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:33,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1301065873, now seen corresponding path program 1 times [2024-10-12 20:23:33,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:33,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569000243] [2024-10-12 20:23:33,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:33,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:33,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:33,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:33,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:33,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569000243] [2024-10-12 20:23:33,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569000243] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:33,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:33,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:23:33,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012908425] [2024-10-12 20:23:33,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:33,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:23:33,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:33,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:23:33,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:23:33,668 INFO L87 Difference]: Start difference. First operand 2289 states and 2966 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:33,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:33,750 INFO L93 Difference]: Finished difference Result 3729 states and 4916 transitions. [2024-10-12 20:23:33,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:23:33,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-10-12 20:23:33,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:33,760 INFO L225 Difference]: With dead ends: 3729 [2024-10-12 20:23:33,760 INFO L226 Difference]: Without dead ends: 3320 [2024-10-12 20:23:33,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:23:33,763 INFO L432 NwaCegarLoop]: 3654 mSDtfsCounter, 2332 mSDsluCounter, 1593 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2332 SdHoareTripleChecker+Valid, 5247 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:33,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2332 Valid, 5247 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:23:33,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3320 states. [2024-10-12 20:23:33,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3320 to 3317. [2024-10-12 20:23:33,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3317 states, 3316 states have (on average 1.2913148371531966) internal successors, (4282), 3316 states have internal predecessors, (4282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:33,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3317 states to 3317 states and 4282 transitions. [2024-10-12 20:23:33,814 INFO L78 Accepts]: Start accepts. Automaton has 3317 states and 4282 transitions. Word has length 79 [2024-10-12 20:23:33,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:33,814 INFO L471 AbstractCegarLoop]: Abstraction has 3317 states and 4282 transitions. [2024-10-12 20:23:33,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:33,815 INFO L276 IsEmpty]: Start isEmpty. Operand 3317 states and 4282 transitions. [2024-10-12 20:23:33,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-12 20:23:33,821 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:33,821 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:23:33,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 20:23:33,821 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:33,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:33,822 INFO L85 PathProgramCache]: Analyzing trace with hash -782671945, now seen corresponding path program 1 times [2024-10-12 20:23:33,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:33,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816728741] [2024-10-12 20:23:33,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:33,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:33,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:34,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:34,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:34,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816728741] [2024-10-12 20:23:34,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816728741] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:34,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:34,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:23:34,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124329904] [2024-10-12 20:23:34,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:34,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:23:34,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:34,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:23:34,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:23:34,048 INFO L87 Difference]: Start difference. First operand 3317 states and 4282 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:34,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:34,152 INFO L93 Difference]: Finished difference Result 4530 states and 6088 transitions. [2024-10-12 20:23:34,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:23:34,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-10-12 20:23:34,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:34,165 INFO L225 Difference]: With dead ends: 4530 [2024-10-12 20:23:34,165 INFO L226 Difference]: Without dead ends: 3892 [2024-10-12 20:23:34,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:23:34,171 INFO L432 NwaCegarLoop]: 2774 mSDtfsCounter, 1322 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 4386 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:34,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1322 Valid, 4386 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:23:34,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3892 states. [2024-10-12 20:23:34,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3892 to 3890. [2024-10-12 20:23:34,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3890 states, 3889 states have (on average 1.3144767292363075) internal successors, (5112), 3889 states have internal predecessors, (5112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:34,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3890 states to 3890 states and 5112 transitions. [2024-10-12 20:23:34,237 INFO L78 Accepts]: Start accepts. Automaton has 3890 states and 5112 transitions. Word has length 79 [2024-10-12 20:23:34,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:34,238 INFO L471 AbstractCegarLoop]: Abstraction has 3890 states and 5112 transitions. [2024-10-12 20:23:34,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:34,239 INFO L276 IsEmpty]: Start isEmpty. Operand 3890 states and 5112 transitions. [2024-10-12 20:23:34,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-12 20:23:34,247 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:34,248 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:23:34,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 20:23:34,248 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:34,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:34,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1840010013, now seen corresponding path program 1 times [2024-10-12 20:23:34,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:34,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447564480] [2024-10-12 20:23:34,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:34,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:34,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:34,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:34,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:34,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447564480] [2024-10-12 20:23:34,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447564480] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:34,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:34,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:23:34,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939192011] [2024-10-12 20:23:34,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:34,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:23:34,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:34,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:23:34,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:23:34,418 INFO L87 Difference]: Start difference. First operand 3890 states and 5112 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:34,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:34,620 INFO L93 Difference]: Finished difference Result 5856 states and 7976 transitions. [2024-10-12 20:23:34,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:23:34,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-10-12 20:23:34,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:34,635 INFO L225 Difference]: With dead ends: 5856 [2024-10-12 20:23:34,635 INFO L226 Difference]: Without dead ends: 5008 [2024-10-12 20:23:34,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:23:34,641 INFO L432 NwaCegarLoop]: 2769 mSDtfsCounter, 1248 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 4367 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:34,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1248 Valid, 4367 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:23:34,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5008 states. [2024-10-12 20:23:34,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5008 to 5006. [2024-10-12 20:23:34,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5006 states, 5005 states have (on average 1.335064935064935) internal successors, (6682), 5005 states have internal predecessors, (6682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:34,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5006 states to 5006 states and 6682 transitions. [2024-10-12 20:23:34,722 INFO L78 Accepts]: Start accepts. Automaton has 5006 states and 6682 transitions. Word has length 79 [2024-10-12 20:23:34,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:34,722 INFO L471 AbstractCegarLoop]: Abstraction has 5006 states and 6682 transitions. [2024-10-12 20:23:34,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:34,723 INFO L276 IsEmpty]: Start isEmpty. Operand 5006 states and 6682 transitions. [2024-10-12 20:23:34,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-12 20:23:34,729 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:34,730 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:23:34,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 20:23:34,730 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:34,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:34,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1469587710, now seen corresponding path program 1 times [2024-10-12 20:23:34,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:34,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635595418] [2024-10-12 20:23:34,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:34,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:34,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:34,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:34,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635595418] [2024-10-12 20:23:34,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635595418] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:34,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:34,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:23:34,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925061610] [2024-10-12 20:23:34,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:34,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:23:34,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:34,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:23:34,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:23:34,914 INFO L87 Difference]: Start difference. First operand 5006 states and 6682 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:35,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:35,751 INFO L93 Difference]: Finished difference Result 10069 states and 13840 transitions. [2024-10-12 20:23:35,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:23:35,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-10-12 20:23:35,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:35,767 INFO L225 Difference]: With dead ends: 10069 [2024-10-12 20:23:35,767 INFO L226 Difference]: Without dead ends: 5937 [2024-10-12 20:23:35,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:23:35,774 INFO L432 NwaCegarLoop]: 1201 mSDtfsCounter, 6501 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6501 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:35,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6501 Valid, 1417 Invalid, 900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 20:23:35,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5937 states. [2024-10-12 20:23:35,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5937 to 5935. [2024-10-12 20:23:35,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5935 states, 5934 states have (on average 1.3816986855409505) internal successors, (8199), 5934 states have internal predecessors, (8199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:35,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5935 states to 5935 states and 8199 transitions. [2024-10-12 20:23:35,879 INFO L78 Accepts]: Start accepts. Automaton has 5935 states and 8199 transitions. Word has length 79 [2024-10-12 20:23:35,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:35,879 INFO L471 AbstractCegarLoop]: Abstraction has 5935 states and 8199 transitions. [2024-10-12 20:23:35,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:35,879 INFO L276 IsEmpty]: Start isEmpty. Operand 5935 states and 8199 transitions. [2024-10-12 20:23:35,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-12 20:23:35,887 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:35,888 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:23:35,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 20:23:35,888 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:35,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:35,889 INFO L85 PathProgramCache]: Analyzing trace with hash -961390150, now seen corresponding path program 1 times [2024-10-12 20:23:35,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:35,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133725860] [2024-10-12 20:23:35,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:35,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:35,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:36,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:36,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:36,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133725860] [2024-10-12 20:23:36,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133725860] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:36,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:36,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:23:36,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678156962] [2024-10-12 20:23:36,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:36,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:23:36,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:36,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:23:36,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:23:36,014 INFO L87 Difference]: Start difference. First operand 5935 states and 8199 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:36,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:36,099 INFO L93 Difference]: Finished difference Result 14238 states and 20013 transitions. [2024-10-12 20:23:36,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:23:36,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-10-12 20:23:36,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:36,126 INFO L225 Difference]: With dead ends: 14238 [2024-10-12 20:23:36,126 INFO L226 Difference]: Without dead ends: 10049 [2024-10-12 20:23:36,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:23:36,134 INFO L432 NwaCegarLoop]: 2675 mSDtfsCounter, 1713 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1713 SdHoareTripleChecker+Valid, 3912 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:36,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1713 Valid, 3912 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:23:36,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10049 states. [2024-10-12 20:23:36,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10049 to 10035. [2024-10-12 20:23:36,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10035 states, 10034 states have (on average 1.3841937412796492) internal successors, (13889), 10034 states have internal predecessors, (13889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:36,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10035 states to 10035 states and 13889 transitions. [2024-10-12 20:23:36,381 INFO L78 Accepts]: Start accepts. Automaton has 10035 states and 13889 transitions. Word has length 80 [2024-10-12 20:23:36,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:36,381 INFO L471 AbstractCegarLoop]: Abstraction has 10035 states and 13889 transitions. [2024-10-12 20:23:36,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:36,382 INFO L276 IsEmpty]: Start isEmpty. Operand 10035 states and 13889 transitions. [2024-10-12 20:23:36,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-12 20:23:36,393 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:36,393 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:23:36,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 20:23:36,394 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:36,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:36,394 INFO L85 PathProgramCache]: Analyzing trace with hash 473457151, now seen corresponding path program 1 times [2024-10-12 20:23:36,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:36,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4165141] [2024-10-12 20:23:36,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:36,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:36,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:36,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:36,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4165141] [2024-10-12 20:23:36,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4165141] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:36,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:36,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:23:36,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062726738] [2024-10-12 20:23:36,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:36,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:23:36,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:36,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:23:36,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:23:36,569 INFO L87 Difference]: Start difference. First operand 10035 states and 13889 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:37,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:37,362 INFO L93 Difference]: Finished difference Result 20208 states and 28251 transitions. [2024-10-12 20:23:37,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:23:37,363 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-10-12 20:23:37,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:37,380 INFO L225 Difference]: With dead ends: 20208 [2024-10-12 20:23:37,381 INFO L226 Difference]: Without dead ends: 11955 [2024-10-12 20:23:37,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:23:37,394 INFO L432 NwaCegarLoop]: 963 mSDtfsCounter, 5381 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5381 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:37,394 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5381 Valid, 1119 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 20:23:37,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11955 states. [2024-10-12 20:23:37,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11955 to 11929. [2024-10-12 20:23:37,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11929 states, 11928 states have (on average 1.3771797451374916) internal successors, (16427), 11928 states have internal predecessors, (16427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:37,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11929 states to 11929 states and 16427 transitions. [2024-10-12 20:23:37,552 INFO L78 Accepts]: Start accepts. Automaton has 11929 states and 16427 transitions. Word has length 80 [2024-10-12 20:23:37,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:37,552 INFO L471 AbstractCegarLoop]: Abstraction has 11929 states and 16427 transitions. [2024-10-12 20:23:37,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:37,552 INFO L276 IsEmpty]: Start isEmpty. Operand 11929 states and 16427 transitions. [2024-10-12 20:23:37,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-12 20:23:37,562 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:37,562 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:23:37,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 20:23:37,563 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:37,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:37,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1860348150, now seen corresponding path program 1 times [2024-10-12 20:23:37,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:37,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67505078] [2024-10-12 20:23:37,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:37,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:37,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:37,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:37,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67505078] [2024-10-12 20:23:37,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67505078] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:37,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:37,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:23:37,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692746731] [2024-10-12 20:23:37,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:37,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:23:37,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:37,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:23:37,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:23:37,734 INFO L87 Difference]: Start difference. First operand 11929 states and 16427 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:38,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:38,437 INFO L93 Difference]: Finished difference Result 29977 states and 42078 transitions. [2024-10-12 20:23:38,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:23:38,438 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-10-12 20:23:38,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:38,465 INFO L225 Difference]: With dead ends: 29977 [2024-10-12 20:23:38,466 INFO L226 Difference]: Without dead ends: 18831 [2024-10-12 20:23:38,481 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:23:38,482 INFO L432 NwaCegarLoop]: 820 mSDtfsCounter, 4604 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4604 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:38,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4604 Valid, 1037 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 20:23:38,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18831 states. [2024-10-12 20:23:38,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18831 to 18829. [2024-10-12 20:23:38,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18829 states, 18828 states have (on average 1.4027512215848736) internal successors, (26411), 18828 states have internal predecessors, (26411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:38,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18829 states to 18829 states and 26411 transitions. [2024-10-12 20:23:38,830 INFO L78 Accepts]: Start accepts. Automaton has 18829 states and 26411 transitions. Word has length 80 [2024-10-12 20:23:38,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:38,831 INFO L471 AbstractCegarLoop]: Abstraction has 18829 states and 26411 transitions. [2024-10-12 20:23:38,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:38,831 INFO L276 IsEmpty]: Start isEmpty. Operand 18829 states and 26411 transitions. [2024-10-12 20:23:38,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-12 20:23:38,842 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:38,843 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:23:38,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 20:23:38,843 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:38,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:38,844 INFO L85 PathProgramCache]: Analyzing trace with hash -2048024899, now seen corresponding path program 1 times [2024-10-12 20:23:38,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:38,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473537337] [2024-10-12 20:23:38,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:38,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:38,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:38,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:38,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473537337] [2024-10-12 20:23:38,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473537337] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:38,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:38,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:23:38,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954934179] [2024-10-12 20:23:38,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:38,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:23:38,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:38,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:23:38,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:23:38,965 INFO L87 Difference]: Start difference. First operand 18829 states and 26411 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:39,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:39,089 INFO L93 Difference]: Finished difference Result 41251 states and 58248 transitions. [2024-10-12 20:23:39,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:23:39,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-10-12 20:23:39,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:39,137 INFO L225 Difference]: With dead ends: 41251 [2024-10-12 20:23:39,138 INFO L226 Difference]: Without dead ends: 26202 [2024-10-12 20:23:39,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:23:39,157 INFO L432 NwaCegarLoop]: 1741 mSDtfsCounter, 1083 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 2669 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:39,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1083 Valid, 2669 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:23:39,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26202 states. [2024-10-12 20:23:39,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26202 to 26128. [2024-10-12 20:23:39,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26128 states, 26127 states have (on average 1.3844681746851915) internal successors, (36172), 26127 states have internal predecessors, (36172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:39,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26128 states to 26128 states and 36172 transitions. [2024-10-12 20:23:39,488 INFO L78 Accepts]: Start accepts. Automaton has 26128 states and 36172 transitions. Word has length 81 [2024-10-12 20:23:39,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:39,489 INFO L471 AbstractCegarLoop]: Abstraction has 26128 states and 36172 transitions. [2024-10-12 20:23:39,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:39,490 INFO L276 IsEmpty]: Start isEmpty. Operand 26128 states and 36172 transitions. [2024-10-12 20:23:39,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-12 20:23:39,505 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:39,505 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:23:39,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 20:23:39,505 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:39,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:39,506 INFO L85 PathProgramCache]: Analyzing trace with hash -963543678, now seen corresponding path program 1 times [2024-10-12 20:23:39,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:39,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501027096] [2024-10-12 20:23:39,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:39,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:39,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:39,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:39,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:39,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501027096] [2024-10-12 20:23:39,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501027096] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:39,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:39,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:23:39,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711776868] [2024-10-12 20:23:39,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:39,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:23:39,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:39,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:23:39,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:23:39,701 INFO L87 Difference]: Start difference. First operand 26128 states and 36172 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 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) [2024-10-12 20:23:40,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:40,495 INFO L93 Difference]: Finished difference Result 60135 states and 83674 transitions. [2024-10-12 20:23:40,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:23:40,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 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 82 [2024-10-12 20:23:40,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:40,556 INFO L225 Difference]: With dead ends: 60135 [2024-10-12 20:23:40,557 INFO L226 Difference]: Without dead ends: 35279 [2024-10-12 20:23:40,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:23:40,581 INFO L432 NwaCegarLoop]: 692 mSDtfsCounter, 3916 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3916 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:40,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3916 Valid, 885 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 20:23:40,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35279 states. [2024-10-12 20:23:41,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35279 to 35169. [2024-10-12 20:23:41,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35169 states, 35168 states have (on average 1.3829902183803457) internal successors, (48637), 35168 states have internal predecessors, (48637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:41,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35169 states to 35169 states and 48637 transitions. [2024-10-12 20:23:41,177 INFO L78 Accepts]: Start accepts. Automaton has 35169 states and 48637 transitions. Word has length 82 [2024-10-12 20:23:41,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:41,178 INFO L471 AbstractCegarLoop]: Abstraction has 35169 states and 48637 transitions. [2024-10-12 20:23:41,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 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) [2024-10-12 20:23:41,178 INFO L276 IsEmpty]: Start isEmpty. Operand 35169 states and 48637 transitions. [2024-10-12 20:23:41,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-12 20:23:41,202 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:41,203 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:23:41,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 20:23:41,203 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:41,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:41,203 INFO L85 PathProgramCache]: Analyzing trace with hash 940732972, now seen corresponding path program 1 times [2024-10-12 20:23:41,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:41,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035094850] [2024-10-12 20:23:41,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:41,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:41,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:41,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:41,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035094850] [2024-10-12 20:23:41,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035094850] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:41,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:41,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:23:41,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898551815] [2024-10-12 20:23:41,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:41,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:23:41,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:41,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:23:41,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:23:41,492 INFO L87 Difference]: Start difference. First operand 35169 states and 48637 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:42,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:42,515 INFO L93 Difference]: Finished difference Result 75824 states and 105667 transitions. [2024-10-12 20:23:42,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:23:42,516 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-10-12 20:23:42,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:42,632 INFO L225 Difference]: With dead ends: 75824 [2024-10-12 20:23:42,633 INFO L226 Difference]: Without dead ends: 58649 [2024-10-12 20:23:42,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:23:42,666 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 4693 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4693 SdHoareTripleChecker+Valid, 1721 SdHoareTripleChecker+Invalid, 1162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:42,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4693 Valid, 1721 Invalid, 1162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 1023 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 20:23:42,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58649 states. [2024-10-12 20:23:43,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58649 to 35225. [2024-10-12 20:23:43,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35225 states, 35224 states have (on average 1.3828355666590961) internal successors, (48709), 35224 states have internal predecessors, (48709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:43,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35225 states to 35225 states and 48709 transitions. [2024-10-12 20:23:43,482 INFO L78 Accepts]: Start accepts. Automaton has 35225 states and 48709 transitions. Word has length 83 [2024-10-12 20:23:43,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:43,483 INFO L471 AbstractCegarLoop]: Abstraction has 35225 states and 48709 transitions. [2024-10-12 20:23:43,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:43,483 INFO L276 IsEmpty]: Start isEmpty. Operand 35225 states and 48709 transitions. [2024-10-12 20:23:43,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-12 20:23:43,498 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:43,498 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:23:43,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 20:23:43,498 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:43,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:43,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1898621657, now seen corresponding path program 1 times [2024-10-12 20:23:43,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:43,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371266909] [2024-10-12 20:23:43,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:43,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:43,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:43,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:43,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:43,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371266909] [2024-10-12 20:23:43,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371266909] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:43,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:43,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:23:43,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233945857] [2024-10-12 20:23:43,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:43,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:23:43,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:43,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:23:43,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:23:43,707 INFO L87 Difference]: Start difference. First operand 35225 states and 48709 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:44,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:44,875 INFO L93 Difference]: Finished difference Result 83600 states and 116580 transitions. [2024-10-12 20:23:44,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:23:44,876 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-10-12 20:23:44,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:44,961 INFO L225 Difference]: With dead ends: 83600 [2024-10-12 20:23:44,961 INFO L226 Difference]: Without dead ends: 68208 [2024-10-12 20:23:44,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:23:44,992 INFO L432 NwaCegarLoop]: 650 mSDtfsCounter, 4917 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 1362 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4917 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 1523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 1362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:44,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4917 Valid, 1756 Invalid, 1523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 1362 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-12 20:23:45,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68208 states. [2024-10-12 20:23:45,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68208 to 35448. [2024-10-12 20:23:45,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35448 states, 35447 states have (on average 1.3828532739018817) internal successors, (49018), 35447 states have internal predecessors, (49018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:45,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35448 states to 35448 states and 49018 transitions. [2024-10-12 20:23:45,720 INFO L78 Accepts]: Start accepts. Automaton has 35448 states and 49018 transitions. Word has length 83 [2024-10-12 20:23:45,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:45,720 INFO L471 AbstractCegarLoop]: Abstraction has 35448 states and 49018 transitions. [2024-10-12 20:23:45,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:45,721 INFO L276 IsEmpty]: Start isEmpty. Operand 35448 states and 49018 transitions. [2024-10-12 20:23:45,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-12 20:23:45,736 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:45,736 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:23:45,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-12 20:23:45,736 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:45,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:45,737 INFO L85 PathProgramCache]: Analyzing trace with hash -2012790539, now seen corresponding path program 1 times [2024-10-12 20:23:45,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:45,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268630671] [2024-10-12 20:23:45,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:45,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:45,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:45,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:45,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268630671] [2024-10-12 20:23:45,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268630671] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:45,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:45,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:23:45,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267216669] [2024-10-12 20:23:45,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:45,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:23:45,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:45,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:23:45,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:23:45,920 INFO L87 Difference]: Start difference. First operand 35448 states and 49018 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:47,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:47,178 INFO L93 Difference]: Finished difference Result 103184 states and 144921 transitions. [2024-10-12 20:23:47,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:23:47,179 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-10-12 20:23:47,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:47,285 INFO L225 Difference]: With dead ends: 103184 [2024-10-12 20:23:47,285 INFO L226 Difference]: Without dead ends: 89825 [2024-10-12 20:23:47,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:23:47,298 INFO L432 NwaCegarLoop]: 711 mSDtfsCounter, 5116 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 1159 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5116 SdHoareTripleChecker+Valid, 1825 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:47,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5116 Valid, 1825 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1159 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 20:23:47,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89825 states. [2024-10-12 20:23:48,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89825 to 35584. [2024-10-12 20:23:48,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35584 states, 35583 states have (on average 1.382514121912149) internal successors, (49194), 35583 states have internal predecessors, (49194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:48,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35584 states to 35584 states and 49194 transitions. [2024-10-12 20:23:48,289 INFO L78 Accepts]: Start accepts. Automaton has 35584 states and 49194 transitions. Word has length 83 [2024-10-12 20:23:48,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:48,289 INFO L471 AbstractCegarLoop]: Abstraction has 35584 states and 49194 transitions. [2024-10-12 20:23:48,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:48,289 INFO L276 IsEmpty]: Start isEmpty. Operand 35584 states and 49194 transitions. [2024-10-12 20:23:48,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-12 20:23:48,312 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:48,312 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:23:48,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 20:23:48,312 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:48,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:48,313 INFO L85 PathProgramCache]: Analyzing trace with hash 598779131, now seen corresponding path program 1 times [2024-10-12 20:23:48,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:48,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344101831] [2024-10-12 20:23:48,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:48,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:48,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:48,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:48,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:48,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344101831] [2024-10-12 20:23:48,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344101831] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:48,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:48,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:23:48,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149363690] [2024-10-12 20:23:48,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:48,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:23:48,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:48,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:23:48,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:23:48,492 INFO L87 Difference]: Start difference. First operand 35584 states and 49194 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:49,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:49,578 INFO L93 Difference]: Finished difference Result 99803 states and 139961 transitions. [2024-10-12 20:23:49,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:23:49,578 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-10-12 20:23:49,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:49,674 INFO L225 Difference]: With dead ends: 99803 [2024-10-12 20:23:49,675 INFO L226 Difference]: Without dead ends: 82671 [2024-10-12 20:23:49,699 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:23:49,699 INFO L432 NwaCegarLoop]: 701 mSDtfsCounter, 5020 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 1177 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5020 SdHoareTripleChecker+Valid, 1797 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:49,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5020 Valid, 1797 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1177 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 20:23:49,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82671 states. [2024-10-12 20:23:50,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82671 to 35917. [2024-10-12 20:23:50,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35917 states, 35916 states have (on average 1.3819746074173072) internal successors, (49635), 35916 states have internal predecessors, (49635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:50,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35917 states to 35917 states and 49635 transitions. [2024-10-12 20:23:50,593 INFO L78 Accepts]: Start accepts. Automaton has 35917 states and 49635 transitions. Word has length 83 [2024-10-12 20:23:50,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:50,593 INFO L471 AbstractCegarLoop]: Abstraction has 35917 states and 49635 transitions. [2024-10-12 20:23:50,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:50,593 INFO L276 IsEmpty]: Start isEmpty. Operand 35917 states and 49635 transitions. [2024-10-12 20:23:50,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-12 20:23:50,611 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:50,612 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:23:50,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-12 20:23:50,613 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:50,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:50,613 INFO L85 PathProgramCache]: Analyzing trace with hash 65724815, now seen corresponding path program 1 times [2024-10-12 20:23:50,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:50,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147364] [2024-10-12 20:23:50,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:50,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:50,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:50,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:50,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:50,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147364] [2024-10-12 20:23:50,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147364] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:50,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:50,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:23:50,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881940240] [2024-10-12 20:23:50,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:50,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:23:50,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:50,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:23:50,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:23:50,830 INFO L87 Difference]: Start difference. First operand 35917 states and 49635 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:51,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:51,881 INFO L93 Difference]: Finished difference Result 92415 states and 129231 transitions. [2024-10-12 20:23:51,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:23:51,882 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-10-12 20:23:51,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:51,966 INFO L225 Difference]: With dead ends: 92415 [2024-10-12 20:23:51,966 INFO L226 Difference]: Without dead ends: 75931 [2024-10-12 20:23:51,983 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:23:51,984 INFO L432 NwaCegarLoop]: 688 mSDtfsCounter, 4975 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4975 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:51,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4975 Valid, 1772 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 20:23:52,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75931 states. [2024-10-12 20:23:52,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75931 to 36493. [2024-10-12 20:23:52,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36493 states, 36492 states have (on average 1.3812616463882494) internal successors, (50405), 36492 states have internal predecessors, (50405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:52,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36493 states to 36493 states and 50405 transitions. [2024-10-12 20:23:52,666 INFO L78 Accepts]: Start accepts. Automaton has 36493 states and 50405 transitions. Word has length 83 [2024-10-12 20:23:52,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:52,666 INFO L471 AbstractCegarLoop]: Abstraction has 36493 states and 50405 transitions. [2024-10-12 20:23:52,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:52,666 INFO L276 IsEmpty]: Start isEmpty. Operand 36493 states and 50405 transitions. [2024-10-12 20:23:52,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-12 20:23:52,682 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:52,682 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:23:52,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-12 20:23:52,682 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:52,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:52,683 INFO L85 PathProgramCache]: Analyzing trace with hash 243433032, now seen corresponding path program 1 times [2024-10-12 20:23:52,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:52,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861422370] [2024-10-12 20:23:52,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:52,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:52,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:53,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:53,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:53,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861422370] [2024-10-12 20:23:53,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861422370] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:53,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:53,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:23:53,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685860538] [2024-10-12 20:23:53,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:53,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 20:23:53,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:53,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 20:23:53,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-12 20:23:53,165 INFO L87 Difference]: Start difference. First operand 36493 states and 50405 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:54,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:54,399 INFO L93 Difference]: Finished difference Result 78943 states and 110610 transitions. [2024-10-12 20:23:54,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 20:23:54,400 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-10-12 20:23:54,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:54,476 INFO L225 Difference]: With dead ends: 78943 [2024-10-12 20:23:54,477 INFO L226 Difference]: Without dead ends: 55720 [2024-10-12 20:23:54,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-10-12 20:23:54,500 INFO L432 NwaCegarLoop]: 728 mSDtfsCounter, 2611 mSDsluCounter, 2332 mSDsCounter, 0 mSdLazyCounter, 2126 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2611 SdHoareTripleChecker+Valid, 3060 SdHoareTripleChecker+Invalid, 2174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:54,500 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2611 Valid, 3060 Invalid, 2174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2126 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-12 20:23:54,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55720 states. [2024-10-12 20:23:55,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55720 to 36425. [2024-10-12 20:23:55,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36425 states, 36424 states have (on average 1.3809850647924446) internal successors, (50301), 36424 states have internal predecessors, (50301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:55,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36425 states to 36425 states and 50301 transitions. [2024-10-12 20:23:55,244 INFO L78 Accepts]: Start accepts. Automaton has 36425 states and 50301 transitions. Word has length 84 [2024-10-12 20:23:55,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:55,244 INFO L471 AbstractCegarLoop]: Abstraction has 36425 states and 50301 transitions. [2024-10-12 20:23:55,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:55,244 INFO L276 IsEmpty]: Start isEmpty. Operand 36425 states and 50301 transitions. [2024-10-12 20:23:55,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-12 20:23:55,259 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:55,259 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:23:55,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-12 20:23:55,259 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:55,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:55,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1447975722, now seen corresponding path program 1 times [2024-10-12 20:23:55,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:55,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535287296] [2024-10-12 20:23:55,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:55,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:55,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:55,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:55,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535287296] [2024-10-12 20:23:55,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535287296] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:55,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:55,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:23:55,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277200560] [2024-10-12 20:23:55,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:55,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:23:55,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:55,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:23:55,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:23:55,428 INFO L87 Difference]: Start difference. First operand 36425 states and 50301 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:56,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:56,422 INFO L93 Difference]: Finished difference Result 91475 states and 128031 transitions. [2024-10-12 20:23:56,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:23:56,423 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-10-12 20:23:56,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:56,509 INFO L225 Difference]: With dead ends: 91475 [2024-10-12 20:23:56,509 INFO L226 Difference]: Without dead ends: 75863 [2024-10-12 20:23:56,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:23:56,539 INFO L432 NwaCegarLoop]: 688 mSDtfsCounter, 4968 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 1204 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4968 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:56,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4968 Valid, 1772 Invalid, 1367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1204 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 20:23:56,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75863 states. [2024-10-12 20:23:57,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75863 to 36545. [2024-10-12 20:23:57,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36545 states, 36544 states have (on average 1.3808285901926445) internal successors, (50461), 36544 states have internal predecessors, (50461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:57,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36545 states to 36545 states and 50461 transitions. [2024-10-12 20:23:57,318 INFO L78 Accepts]: Start accepts. Automaton has 36545 states and 50461 transitions. Word has length 84 [2024-10-12 20:23:57,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:57,318 INFO L471 AbstractCegarLoop]: Abstraction has 36545 states and 50461 transitions. [2024-10-12 20:23:57,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:57,318 INFO L276 IsEmpty]: Start isEmpty. Operand 36545 states and 50461 transitions. [2024-10-12 20:23:57,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-12 20:23:57,456 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:57,456 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:23:57,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-12 20:23:57,456 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:57,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:57,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1846361066, now seen corresponding path program 1 times [2024-10-12 20:23:57,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:57,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938073555] [2024-10-12 20:23:57,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:57,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:57,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:23:57,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:23:57,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:23:57,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938073555] [2024-10-12 20:23:57,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938073555] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:23:57,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:23:57,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:23:57,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127609325] [2024-10-12 20:23:57,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:23:57,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:23:57,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:23:57,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:23:57,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:23:57,709 INFO L87 Difference]: Start difference. First operand 36545 states and 50461 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:58,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:23:58,715 INFO L93 Difference]: Finished difference Result 85049 states and 118501 transitions. [2024-10-12 20:23:58,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:23:58,716 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-10-12 20:23:58,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:23:58,798 INFO L225 Difference]: With dead ends: 85049 [2024-10-12 20:23:58,798 INFO L226 Difference]: Without dead ends: 69621 [2024-10-12 20:23:58,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:23:58,830 INFO L432 NwaCegarLoop]: 650 mSDtfsCounter, 4909 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4909 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 1520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 20:23:58,831 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4909 Valid, 1756 Invalid, 1520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 1359 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 20:23:58,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69621 states. [2024-10-12 20:23:59,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69621 to 36835. [2024-10-12 20:23:59,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36835 states, 36834 states have (on average 1.3809252321224956) internal successors, (50865), 36834 states have internal predecessors, (50865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:59,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36835 states to 36835 states and 50865 transitions. [2024-10-12 20:23:59,653 INFO L78 Accepts]: Start accepts. Automaton has 36835 states and 50865 transitions. Word has length 84 [2024-10-12 20:23:59,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:23:59,654 INFO L471 AbstractCegarLoop]: Abstraction has 36835 states and 50865 transitions. [2024-10-12 20:23:59,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:23:59,654 INFO L276 IsEmpty]: Start isEmpty. Operand 36835 states and 50865 transitions. [2024-10-12 20:23:59,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-12 20:23:59,670 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:23:59,670 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:23:59,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-12 20:23:59,670 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:23:59,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:23:59,670 INFO L85 PathProgramCache]: Analyzing trace with hash -860991493, now seen corresponding path program 1 times [2024-10-12 20:23:59,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:23:59,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76565925] [2024-10-12 20:23:59,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:23:59,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:23:59,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:00,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:00,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:00,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76565925] [2024-10-12 20:24:00,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76565925] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:00,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:00,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:24:00,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46996773] [2024-10-12 20:24:00,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:00,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 20:24:00,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:00,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 20:24:00,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-12 20:24:00,010 INFO L87 Difference]: Start difference. First operand 36835 states and 50865 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:01,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:01,158 INFO L93 Difference]: Finished difference Result 79280 states and 111128 transitions. [2024-10-12 20:24:01,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-12 20:24:01,159 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-10-12 20:24:01,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:01,223 INFO L225 Difference]: With dead ends: 79280 [2024-10-12 20:24:01,224 INFO L226 Difference]: Without dead ends: 56021 [2024-10-12 20:24:01,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-10-12 20:24:01,248 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 4425 mSDsluCounter, 2127 mSDsCounter, 0 mSdLazyCounter, 1881 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4425 SdHoareTripleChecker+Valid, 2848 SdHoareTripleChecker+Invalid, 1926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:01,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4425 Valid, 2848 Invalid, 1926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1881 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 20:24:01,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56021 states. [2024-10-12 20:24:01,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56021 to 36749. [2024-10-12 20:24:01,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36749 states, 36748 states have (on average 1.3807826276259934) internal successors, (50741), 36748 states have internal predecessors, (50741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:01,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36749 states to 36749 states and 50741 transitions. [2024-10-12 20:24:01,995 INFO L78 Accepts]: Start accepts. Automaton has 36749 states and 50741 transitions. Word has length 84 [2024-10-12 20:24:01,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:01,995 INFO L471 AbstractCegarLoop]: Abstraction has 36749 states and 50741 transitions. [2024-10-12 20:24:01,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:01,996 INFO L276 IsEmpty]: Start isEmpty. Operand 36749 states and 50741 transitions. [2024-10-12 20:24:02,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-12 20:24:02,017 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:02,017 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:02,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-12 20:24:02,018 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:02,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:02,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1078841363, now seen corresponding path program 1 times [2024-10-12 20:24:02,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:02,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489246443] [2024-10-12 20:24:02,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:02,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:02,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:02,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:02,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489246443] [2024-10-12 20:24:02,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489246443] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:02,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:02,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:24:02,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103621538] [2024-10-12 20:24:02,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:02,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:24:02,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:02,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:24:02,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:24:02,253 INFO L87 Difference]: Start difference. First operand 36749 states and 50741 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:03,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:03,442 INFO L93 Difference]: Finished difference Result 99306 states and 139362 transitions. [2024-10-12 20:24:03,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:24:03,443 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-10-12 20:24:03,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:03,537 INFO L225 Difference]: With dead ends: 99306 [2024-10-12 20:24:03,538 INFO L226 Difference]: Without dead ends: 83598 [2024-10-12 20:24:03,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:24:03,563 INFO L432 NwaCegarLoop]: 701 mSDtfsCounter, 5009 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5009 SdHoareTripleChecker+Valid, 1797 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:03,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5009 Valid, 1797 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1173 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 20:24:03,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83598 states. [2024-10-12 20:24:04,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83598 to 36824. [2024-10-12 20:24:04,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36824 states, 36823 states have (on average 1.3806859843032888) internal successors, (50841), 36823 states have internal predecessors, (50841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:04,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36824 states to 36824 states and 50841 transitions. [2024-10-12 20:24:04,390 INFO L78 Accepts]: Start accepts. Automaton has 36824 states and 50841 transitions. Word has length 84 [2024-10-12 20:24:04,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:04,390 INFO L471 AbstractCegarLoop]: Abstraction has 36824 states and 50841 transitions. [2024-10-12 20:24:04,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:04,390 INFO L276 IsEmpty]: Start isEmpty. Operand 36824 states and 50841 transitions. [2024-10-12 20:24:04,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-12 20:24:04,407 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:04,407 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:04,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-12 20:24:04,407 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:04,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:04,407 INFO L85 PathProgramCache]: Analyzing trace with hash -751519819, now seen corresponding path program 1 times [2024-10-12 20:24:04,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:04,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534649539] [2024-10-12 20:24:04,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:04,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:04,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:04,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:04,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534649539] [2024-10-12 20:24:04,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534649539] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:04,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:04,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:24:04,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786457790] [2024-10-12 20:24:04,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:04,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 20:24:04,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:04,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 20:24:04,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-12 20:24:04,733 INFO L87 Difference]: Start difference. First operand 36824 states and 50841 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:05,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:05,859 INFO L93 Difference]: Finished difference Result 75124 states and 105149 transitions. [2024-10-12 20:24:05,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 20:24:05,860 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-10-12 20:24:05,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:05,924 INFO L225 Difference]: With dead ends: 75124 [2024-10-12 20:24:05,924 INFO L226 Difference]: Without dead ends: 50983 [2024-10-12 20:24:05,953 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-10-12 20:24:05,954 INFO L432 NwaCegarLoop]: 718 mSDtfsCounter, 3738 mSDsluCounter, 2543 mSDsCounter, 0 mSdLazyCounter, 2108 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3738 SdHoareTripleChecker+Valid, 3261 SdHoareTripleChecker+Invalid, 2150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:05,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3738 Valid, 3261 Invalid, 2150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2108 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 20:24:05,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50983 states. [2024-10-12 20:24:06,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50983 to 36282. [2024-10-12 20:24:06,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36282 states, 36281 states have (on average 1.3809983186791985) internal successors, (50104), 36281 states have internal predecessors, (50104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:06,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36282 states to 36282 states and 50104 transitions. [2024-10-12 20:24:06,625 INFO L78 Accepts]: Start accepts. Automaton has 36282 states and 50104 transitions. Word has length 84 [2024-10-12 20:24:06,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:06,625 INFO L471 AbstractCegarLoop]: Abstraction has 36282 states and 50104 transitions. [2024-10-12 20:24:06,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:06,625 INFO L276 IsEmpty]: Start isEmpty. Operand 36282 states and 50104 transitions. [2024-10-12 20:24:06,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-12 20:24:06,644 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:06,644 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:06,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-12 20:24:06,644 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:06,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:06,645 INFO L85 PathProgramCache]: Analyzing trace with hash 285861585, now seen corresponding path program 1 times [2024-10-12 20:24:06,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:06,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533396704] [2024-10-12 20:24:06,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:06,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:06,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:06,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:06,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:06,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533396704] [2024-10-12 20:24:06,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533396704] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:06,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:06,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:24:06,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916746283] [2024-10-12 20:24:06,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:06,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:24:06,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:06,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:24:06,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:24:06,836 INFO L87 Difference]: Start difference. First operand 36282 states and 50104 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:07,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:07,814 INFO L93 Difference]: Finished difference Result 84536 states and 117810 transitions. [2024-10-12 20:24:07,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:24:07,815 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-10-12 20:24:07,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:07,904 INFO L225 Difference]: With dead ends: 84536 [2024-10-12 20:24:07,904 INFO L226 Difference]: Without dead ends: 69108 [2024-10-12 20:24:07,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:24:07,938 INFO L432 NwaCegarLoop]: 650 mSDtfsCounter, 4895 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4895 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 1514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:07,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4895 Valid, 1756 Invalid, 1514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 20:24:08,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69108 states. [2024-10-12 20:24:08,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69108 to 36578. [2024-10-12 20:24:08,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36578 states, 36577 states have (on average 1.381141154277278) internal successors, (50518), 36577 states have internal predecessors, (50518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:08,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36578 states to 36578 states and 50518 transitions. [2024-10-12 20:24:08,905 INFO L78 Accepts]: Start accepts. Automaton has 36578 states and 50518 transitions. Word has length 84 [2024-10-12 20:24:08,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:08,905 INFO L471 AbstractCegarLoop]: Abstraction has 36578 states and 50518 transitions. [2024-10-12 20:24:08,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:08,906 INFO L276 IsEmpty]: Start isEmpty. Operand 36578 states and 50518 transitions. [2024-10-12 20:24:08,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-12 20:24:08,923 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:08,923 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:08,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-12 20:24:08,923 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:08,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:08,924 INFO L85 PathProgramCache]: Analyzing trace with hash 684246929, now seen corresponding path program 1 times [2024-10-12 20:24:08,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:08,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773102476] [2024-10-12 20:24:08,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:08,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:09,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:09,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:09,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773102476] [2024-10-12 20:24:09,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773102476] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:09,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:09,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:24:09,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168802911] [2024-10-12 20:24:09,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:09,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 20:24:09,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:09,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 20:24:09,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-12 20:24:09,206 INFO L87 Difference]: Start difference. First operand 36578 states and 50518 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:10,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:10,285 INFO L93 Difference]: Finished difference Result 78115 states and 109390 transitions. [2024-10-12 20:24:10,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-12 20:24:10,286 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-10-12 20:24:10,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:10,348 INFO L225 Difference]: With dead ends: 78115 [2024-10-12 20:24:10,349 INFO L226 Difference]: Without dead ends: 54980 [2024-10-12 20:24:10,375 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-10-12 20:24:10,375 INFO L432 NwaCegarLoop]: 754 mSDtfsCounter, 4317 mSDsluCounter, 2229 mSDsCounter, 0 mSdLazyCounter, 2209 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4317 SdHoareTripleChecker+Valid, 2983 SdHoareTripleChecker+Invalid, 2246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:10,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4317 Valid, 2983 Invalid, 2246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2209 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 20:24:10,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54980 states. [2024-10-12 20:24:10,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54980 to 36554. [2024-10-12 20:24:10,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36554 states, 36553 states have (on average 1.3807348234071075) internal successors, (50470), 36553 states have internal predecessors, (50470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:11,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36554 states to 36554 states and 50470 transitions. [2024-10-12 20:24:11,050 INFO L78 Accepts]: Start accepts. Automaton has 36554 states and 50470 transitions. Word has length 84 [2024-10-12 20:24:11,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:11,050 INFO L471 AbstractCegarLoop]: Abstraction has 36554 states and 50470 transitions. [2024-10-12 20:24:11,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:11,050 INFO L276 IsEmpty]: Start isEmpty. Operand 36554 states and 50470 transitions. [2024-10-12 20:24:11,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-12 20:24:11,067 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:11,067 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:11,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-12 20:24:11,067 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:11,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:11,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1953439629, now seen corresponding path program 1 times [2024-10-12 20:24:11,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:11,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287198925] [2024-10-12 20:24:11,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:11,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:11,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:11,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:11,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:11,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287198925] [2024-10-12 20:24:11,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287198925] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:11,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:11,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:24:11,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592338662] [2024-10-12 20:24:11,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:11,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:24:11,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:11,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:24:11,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:24:11,569 INFO L87 Difference]: Start difference. First operand 36554 states and 50470 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:12,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:12,653 INFO L93 Difference]: Finished difference Result 77960 states and 109308 transitions. [2024-10-12 20:24:12,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 20:24:12,654 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-10-12 20:24:12,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:12,720 INFO L225 Difference]: With dead ends: 77960 [2024-10-12 20:24:12,721 INFO L226 Difference]: Without dead ends: 51759 [2024-10-12 20:24:12,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:24:12,752 INFO L432 NwaCegarLoop]: 657 mSDtfsCounter, 3392 mSDsluCounter, 1649 mSDsCounter, 0 mSdLazyCounter, 1852 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3392 SdHoareTripleChecker+Valid, 2306 SdHoareTripleChecker+Invalid, 1877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:12,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3392 Valid, 2306 Invalid, 1877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1852 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 20:24:12,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51759 states. [2024-10-12 20:24:13,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51759 to 35213. [2024-10-12 20:24:13,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35213 states, 35212 states have (on average 1.380239691014427) internal successors, (48601), 35212 states have internal predecessors, (48601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:13,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35213 states to 35213 states and 48601 transitions. [2024-10-12 20:24:13,420 INFO L78 Accepts]: Start accepts. Automaton has 35213 states and 48601 transitions. Word has length 84 [2024-10-12 20:24:13,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:13,420 INFO L471 AbstractCegarLoop]: Abstraction has 35213 states and 48601 transitions. [2024-10-12 20:24:13,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:13,421 INFO L276 IsEmpty]: Start isEmpty. Operand 35213 states and 48601 transitions. [2024-10-12 20:24:13,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-12 20:24:13,435 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:13,435 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:13,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-12 20:24:13,436 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:13,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:13,436 INFO L85 PathProgramCache]: Analyzing trace with hash 754780750, now seen corresponding path program 1 times [2024-10-12 20:24:13,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:13,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287853038] [2024-10-12 20:24:13,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:13,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:13,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:13,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:13,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:13,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287853038] [2024-10-12 20:24:13,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287853038] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:13,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:13,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:24:13,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853756757] [2024-10-12 20:24:13,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:13,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 20:24:13,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:13,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 20:24:13,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-12 20:24:13,702 INFO L87 Difference]: Start difference. First operand 35213 states and 48601 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:14,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:14,811 INFO L93 Difference]: Finished difference Result 77702 states and 108893 transitions. [2024-10-12 20:24:14,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-12 20:24:14,811 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-10-12 20:24:14,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:14,867 INFO L225 Difference]: With dead ends: 77702 [2024-10-12 20:24:14,867 INFO L226 Difference]: Without dead ends: 53715 [2024-10-12 20:24:14,883 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-10-12 20:24:14,884 INFO L432 NwaCegarLoop]: 773 mSDtfsCounter, 2845 mSDsluCounter, 2283 mSDsCounter, 0 mSdLazyCounter, 1992 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2845 SdHoareTripleChecker+Valid, 3056 SdHoareTripleChecker+Invalid, 2037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:14,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2845 Valid, 3056 Invalid, 2037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1992 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 20:24:14,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53715 states. [2024-10-12 20:24:15,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53715 to 34742. [2024-10-12 20:24:15,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34742 states, 34741 states have (on average 1.3805302092628307) internal successors, (47961), 34741 states have internal predecessors, (47961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:15,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34742 states to 34742 states and 47961 transitions. [2024-10-12 20:24:15,418 INFO L78 Accepts]: Start accepts. Automaton has 34742 states and 47961 transitions. Word has length 85 [2024-10-12 20:24:15,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:15,418 INFO L471 AbstractCegarLoop]: Abstraction has 34742 states and 47961 transitions. [2024-10-12 20:24:15,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:15,418 INFO L276 IsEmpty]: Start isEmpty. Operand 34742 states and 47961 transitions. [2024-10-12 20:24:15,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-12 20:24:15,432 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:15,432 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:15,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-12 20:24:15,432 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:15,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:15,433 INFO L85 PathProgramCache]: Analyzing trace with hash 863427170, now seen corresponding path program 1 times [2024-10-12 20:24:15,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:15,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809335423] [2024-10-12 20:24:15,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:15,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:15,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:16,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:16,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:16,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809335423] [2024-10-12 20:24:16,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809335423] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:16,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:16,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-12 20:24:16,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034641067] [2024-10-12 20:24:16,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:16,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 20:24:16,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:16,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 20:24:16,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:24:16,117 INFO L87 Difference]: Start difference. First operand 34742 states and 47961 transitions. Second operand has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 11 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:16,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:16,904 INFO L93 Difference]: Finished difference Result 76203 states and 107156 transitions. [2024-10-12 20:24:16,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 20:24:16,905 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 11 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-10-12 20:24:16,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:16,965 INFO L225 Difference]: With dead ends: 76203 [2024-10-12 20:24:16,965 INFO L226 Difference]: Without dead ends: 51816 [2024-10-12 20:24:16,992 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2024-10-12 20:24:16,993 INFO L432 NwaCegarLoop]: 1000 mSDtfsCounter, 5050 mSDsluCounter, 5011 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5050 SdHoareTripleChecker+Valid, 6011 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:16,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5050 Valid, 6011 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 20:24:17,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51816 states. [2024-10-12 20:24:17,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51816 to 33401. [2024-10-12 20:24:17,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33401 states, 33400 states have (on average 1.3834730538922155) internal successors, (46208), 33400 states have internal predecessors, (46208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:17,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33401 states to 33401 states and 46208 transitions. [2024-10-12 20:24:17,524 INFO L78 Accepts]: Start accepts. Automaton has 33401 states and 46208 transitions. Word has length 85 [2024-10-12 20:24:17,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:17,525 INFO L471 AbstractCegarLoop]: Abstraction has 33401 states and 46208 transitions. [2024-10-12 20:24:17,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 11 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:17,525 INFO L276 IsEmpty]: Start isEmpty. Operand 33401 states and 46208 transitions. [2024-10-12 20:24:17,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-12 20:24:17,537 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:17,537 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:17,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-12 20:24:17,537 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:17,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:17,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1044523368, now seen corresponding path program 1 times [2024-10-12 20:24:17,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:17,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445576449] [2024-10-12 20:24:17,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:17,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:17,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:18,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:18,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:18,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445576449] [2024-10-12 20:24:18,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445576449] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:18,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:18,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-12 20:24:18,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029727584] [2024-10-12 20:24:18,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:18,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 20:24:18,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:18,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 20:24:18,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:24:18,132 INFO L87 Difference]: Start difference. First operand 33401 states and 46208 transitions. Second operand has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 11 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:19,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:19,225 INFO L93 Difference]: Finished difference Result 74818 states and 105332 transitions. [2024-10-12 20:24:19,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-12 20:24:19,226 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 11 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-10-12 20:24:19,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:19,290 INFO L225 Difference]: With dead ends: 74818 [2024-10-12 20:24:19,291 INFO L226 Difference]: Without dead ends: 51460 [2024-10-12 20:24:19,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-10-12 20:24:19,321 INFO L432 NwaCegarLoop]: 953 mSDtfsCounter, 5672 mSDsluCounter, 3898 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5672 SdHoareTripleChecker+Valid, 4851 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:19,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5672 Valid, 4851 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 20:24:19,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51460 states. [2024-10-12 20:24:19,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51460 to 33130. [2024-10-12 20:24:19,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33130 states, 33129 states have (on average 1.3833801201364364) internal successors, (45830), 33129 states have internal predecessors, (45830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:19,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33130 states to 33130 states and 45830 transitions. [2024-10-12 20:24:19,832 INFO L78 Accepts]: Start accepts. Automaton has 33130 states and 45830 transitions. Word has length 85 [2024-10-12 20:24:19,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:19,832 INFO L471 AbstractCegarLoop]: Abstraction has 33130 states and 45830 transitions. [2024-10-12 20:24:19,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 11 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:19,832 INFO L276 IsEmpty]: Start isEmpty. Operand 33130 states and 45830 transitions. [2024-10-12 20:24:19,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-12 20:24:19,846 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:19,846 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:19,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-12 20:24:19,847 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:19,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:19,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1551280976, now seen corresponding path program 1 times [2024-10-12 20:24:19,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:19,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716151694] [2024-10-12 20:24:19,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:19,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:19,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:20,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:20,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:20,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716151694] [2024-10-12 20:24:20,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716151694] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:20,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:20,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-12 20:24:20,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431015552] [2024-10-12 20:24:20,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:20,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 20:24:20,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:20,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 20:24:20,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:24:20,403 INFO L87 Difference]: Start difference. First operand 33130 states and 45830 transitions. Second operand has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 11 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:21,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:21,942 INFO L93 Difference]: Finished difference Result 110583 states and 156203 transitions. [2024-10-12 20:24:21,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-12 20:24:21,943 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 11 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-10-12 20:24:21,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:22,029 INFO L225 Difference]: With dead ends: 110583 [2024-10-12 20:24:22,029 INFO L226 Difference]: Without dead ends: 87484 [2024-10-12 20:24:22,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=164, Invalid=486, Unknown=0, NotChecked=0, Total=650 [2024-10-12 20:24:22,040 INFO L432 NwaCegarLoop]: 816 mSDtfsCounter, 7047 mSDsluCounter, 4459 mSDsCounter, 0 mSdLazyCounter, 1646 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7047 SdHoareTripleChecker+Valid, 5275 SdHoareTripleChecker+Invalid, 1678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:22,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7047 Valid, 5275 Invalid, 1678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1646 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 20:24:22,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87484 states. [2024-10-12 20:24:22,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87484 to 33154. [2024-10-12 20:24:22,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33154 states, 33153 states have (on average 1.3834645431785961) internal successors, (45866), 33153 states have internal predecessors, (45866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:22,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33154 states to 33154 states and 45866 transitions. [2024-10-12 20:24:22,626 INFO L78 Accepts]: Start accepts. Automaton has 33154 states and 45866 transitions. Word has length 85 [2024-10-12 20:24:22,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:22,626 INFO L471 AbstractCegarLoop]: Abstraction has 33154 states and 45866 transitions. [2024-10-12 20:24:22,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 11 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:22,627 INFO L276 IsEmpty]: Start isEmpty. Operand 33154 states and 45866 transitions. [2024-10-12 20:24:22,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-12 20:24:22,639 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:22,640 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:22,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-12 20:24:22,640 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:22,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:22,640 INFO L85 PathProgramCache]: Analyzing trace with hash 121004362, now seen corresponding path program 1 times [2024-10-12 20:24:22,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:22,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822430790] [2024-10-12 20:24:22,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:22,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:22,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:22,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:22,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:22,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822430790] [2024-10-12 20:24:22,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822430790] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:22,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:22,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:24:22,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737060829] [2024-10-12 20:24:22,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:22,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:24:22,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:22,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:24:22,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:24:22,920 INFO L87 Difference]: Start difference. First operand 33154 states and 45866 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:23,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:23,700 INFO L93 Difference]: Finished difference Result 87772 states and 123020 transitions. [2024-10-12 20:24:23,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 20:24:23,701 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-10-12 20:24:23,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:23,796 INFO L225 Difference]: With dead ends: 87772 [2024-10-12 20:24:23,796 INFO L226 Difference]: Without dead ends: 72328 [2024-10-12 20:24:23,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:24:23,834 INFO L432 NwaCegarLoop]: 606 mSDtfsCounter, 4336 mSDsluCounter, 990 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4336 SdHoareTripleChecker+Valid, 1596 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:23,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4336 Valid, 1596 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1049 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 20:24:23,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72328 states. [2024-10-12 20:24:24,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72328 to 33236. [2024-10-12 20:24:24,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33236 states, 33235 states have (on average 1.3832405596509703) internal successors, (45972), 33235 states have internal predecessors, (45972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:24,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33236 states to 33236 states and 45972 transitions. [2024-10-12 20:24:24,596 INFO L78 Accepts]: Start accepts. Automaton has 33236 states and 45972 transitions. Word has length 85 [2024-10-12 20:24:24,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:24,596 INFO L471 AbstractCegarLoop]: Abstraction has 33236 states and 45972 transitions. [2024-10-12 20:24:24,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:24,596 INFO L276 IsEmpty]: Start isEmpty. Operand 33236 states and 45972 transitions. [2024-10-12 20:24:24,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-12 20:24:24,609 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:24,609 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:24,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-12 20:24:24,610 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:24,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:24,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1453102197, now seen corresponding path program 1 times [2024-10-12 20:24:24,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:24,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593302804] [2024-10-12 20:24:24,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:24,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:24,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:25,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:25,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:25,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593302804] [2024-10-12 20:24:25,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593302804] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:25,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:25,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-12 20:24:25,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771521313] [2024-10-12 20:24:25,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:25,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 20:24:25,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:25,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 20:24:25,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:24:25,090 INFO L87 Difference]: Start difference. First operand 33236 states and 45972 transitions. Second operand has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 11 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:26,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:26,044 INFO L93 Difference]: Finished difference Result 81531 states and 114925 transitions. [2024-10-12 20:24:26,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-12 20:24:26,044 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 11 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-10-12 20:24:26,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:26,125 INFO L225 Difference]: With dead ends: 81531 [2024-10-12 20:24:26,125 INFO L226 Difference]: Without dead ends: 58312 [2024-10-12 20:24:26,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-10-12 20:24:26,159 INFO L432 NwaCegarLoop]: 911 mSDtfsCounter, 5734 mSDsluCounter, 3667 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5734 SdHoareTripleChecker+Valid, 4578 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:26,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5734 Valid, 4578 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 20:24:26,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58312 states. [2024-10-12 20:24:26,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58312 to 33104. [2024-10-12 20:24:26,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33104 states, 33103 states have (on average 1.3833187324411684) internal successors, (45792), 33103 states have internal predecessors, (45792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:26,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33104 states to 33104 states and 45792 transitions. [2024-10-12 20:24:26,682 INFO L78 Accepts]: Start accepts. Automaton has 33104 states and 45792 transitions. Word has length 85 [2024-10-12 20:24:26,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:26,682 INFO L471 AbstractCegarLoop]: Abstraction has 33104 states and 45792 transitions. [2024-10-12 20:24:26,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 11 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:26,683 INFO L276 IsEmpty]: Start isEmpty. Operand 33104 states and 45792 transitions. [2024-10-12 20:24:26,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-12 20:24:26,695 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:26,695 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:26,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-12 20:24:26,695 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:26,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:26,696 INFO L85 PathProgramCache]: Analyzing trace with hash -342238671, now seen corresponding path program 1 times [2024-10-12 20:24:26,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:26,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133652201] [2024-10-12 20:24:26,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:26,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:26,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:27,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:27,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:27,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133652201] [2024-10-12 20:24:27,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133652201] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:27,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:27,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-12 20:24:27,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832116393] [2024-10-12 20:24:27,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:27,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 20:24:27,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:27,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 20:24:27,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:24:27,209 INFO L87 Difference]: Start difference. First operand 33104 states and 45792 transitions. Second operand has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 11 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:27,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:27,969 INFO L93 Difference]: Finished difference Result 81252 states and 114592 transitions. [2024-10-12 20:24:27,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 20:24:27,970 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 11 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-10-12 20:24:27,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:28,035 INFO L225 Difference]: With dead ends: 81252 [2024-10-12 20:24:28,035 INFO L226 Difference]: Without dead ends: 57472 [2024-10-12 20:24:28,064 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2024-10-12 20:24:28,065 INFO L432 NwaCegarLoop]: 900 mSDtfsCounter, 5652 mSDsluCounter, 4155 mSDsCounter, 0 mSdLazyCounter, 874 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5652 SdHoareTripleChecker+Valid, 5055 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:28,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5652 Valid, 5055 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 874 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 20:24:28,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57472 states. [2024-10-12 20:24:28,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57472 to 32369. [2024-10-12 20:24:28,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32369 states, 32368 states have (on average 1.3856277805239743) internal successors, (44850), 32368 states have internal predecessors, (44850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:28,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32369 states to 32369 states and 44850 transitions. [2024-10-12 20:24:28,689 INFO L78 Accepts]: Start accepts. Automaton has 32369 states and 44850 transitions. Word has length 85 [2024-10-12 20:24:28,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:28,689 INFO L471 AbstractCegarLoop]: Abstraction has 32369 states and 44850 transitions. [2024-10-12 20:24:28,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 11 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:28,690 INFO L276 IsEmpty]: Start isEmpty. Operand 32369 states and 44850 transitions. [2024-10-12 20:24:28,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-12 20:24:28,703 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:28,703 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:28,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-12 20:24:28,703 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:28,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:28,704 INFO L85 PathProgramCache]: Analyzing trace with hash 717850647, now seen corresponding path program 1 times [2024-10-12 20:24:28,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:28,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316905765] [2024-10-12 20:24:28,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:28,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:28,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:28,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:28,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316905765] [2024-10-12 20:24:28,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316905765] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:28,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:28,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:24:28,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91466755] [2024-10-12 20:24:28,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:28,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:24:28,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:28,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:24:28,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:24:28,783 INFO L87 Difference]: Start difference. First operand 32369 states and 44850 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:28,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:28,898 INFO L93 Difference]: Finished difference Result 49882 states and 69561 transitions. [2024-10-12 20:24:28,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:24:28,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2024-10-12 20:24:28,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:28,932 INFO L225 Difference]: With dead ends: 49882 [2024-10-12 20:24:28,932 INFO L226 Difference]: Without dead ends: 32371 [2024-10-12 20:24:28,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:24:28,949 INFO L432 NwaCegarLoop]: 1251 mSDtfsCounter, 592 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 2199 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:28,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 2199 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:24:28,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32371 states. [2024-10-12 20:24:29,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32371 to 32369. [2024-10-12 20:24:29,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32369 states, 32368 states have (on average 1.3769154720711814) internal successors, (44568), 32368 states have internal predecessors, (44568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:29,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32369 states to 32369 states and 44568 transitions. [2024-10-12 20:24:29,292 INFO L78 Accepts]: Start accepts. Automaton has 32369 states and 44568 transitions. Word has length 86 [2024-10-12 20:24:29,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:29,292 INFO L471 AbstractCegarLoop]: Abstraction has 32369 states and 44568 transitions. [2024-10-12 20:24:29,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:29,292 INFO L276 IsEmpty]: Start isEmpty. Operand 32369 states and 44568 transitions. [2024-10-12 20:24:29,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-12 20:24:29,306 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:29,306 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:29,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-12 20:24:29,307 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:29,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:29,307 INFO L85 PathProgramCache]: Analyzing trace with hash 179478717, now seen corresponding path program 1 times [2024-10-12 20:24:29,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:29,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765817538] [2024-10-12 20:24:29,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:29,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:29,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:29,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:29,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:29,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765817538] [2024-10-12 20:24:29,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765817538] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:29,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:29,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:24:29,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025418828] [2024-10-12 20:24:29,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:29,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 20:24:29,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:29,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 20:24:29,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-12 20:24:29,652 INFO L87 Difference]: Start difference. First operand 32369 states and 44568 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:30,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:30,581 INFO L93 Difference]: Finished difference Result 73138 states and 102157 transitions. [2024-10-12 20:24:30,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 20:24:30,582 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2024-10-12 20:24:30,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:30,645 INFO L225 Difference]: With dead ends: 73138 [2024-10-12 20:24:30,645 INFO L226 Difference]: Without dead ends: 50027 [2024-10-12 20:24:30,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-10-12 20:24:30,674 INFO L432 NwaCegarLoop]: 627 mSDtfsCounter, 2147 mSDsluCounter, 2117 mSDsCounter, 0 mSdLazyCounter, 1963 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2147 SdHoareTripleChecker+Valid, 2744 SdHoareTripleChecker+Invalid, 1999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:30,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2147 Valid, 2744 Invalid, 1999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1963 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 20:24:30,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50027 states. [2024-10-12 20:24:31,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50027 to 32357. [2024-10-12 20:24:31,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32357 states, 32356 states have (on average 1.3766843862034863) internal successors, (44544), 32356 states have internal predecessors, (44544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:31,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32357 states to 32357 states and 44544 transitions. [2024-10-12 20:24:31,193 INFO L78 Accepts]: Start accepts. Automaton has 32357 states and 44544 transitions. Word has length 86 [2024-10-12 20:24:31,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:31,193 INFO L471 AbstractCegarLoop]: Abstraction has 32357 states and 44544 transitions. [2024-10-12 20:24:31,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:31,193 INFO L276 IsEmpty]: Start isEmpty. Operand 32357 states and 44544 transitions. [2024-10-12 20:24:31,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-12 20:24:31,207 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:31,207 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:31,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-12 20:24:31,207 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:31,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:31,207 INFO L85 PathProgramCache]: Analyzing trace with hash -753788722, now seen corresponding path program 1 times [2024-10-12 20:24:31,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:31,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394593893] [2024-10-12 20:24:31,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:31,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:31,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:31,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:31,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394593893] [2024-10-12 20:24:31,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394593893] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:31,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:31,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:24:31,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39814421] [2024-10-12 20:24:31,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:31,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 20:24:31,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:31,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 20:24:31,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-12 20:24:31,515 INFO L87 Difference]: Start difference. First operand 32357 states and 44544 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:32,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:32,399 INFO L93 Difference]: Finished difference Result 73620 states and 102828 transitions. [2024-10-12 20:24:32,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 20:24:32,400 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2024-10-12 20:24:32,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:32,455 INFO L225 Difference]: With dead ends: 73620 [2024-10-12 20:24:32,456 INFO L226 Difference]: Without dead ends: 49975 [2024-10-12 20:24:32,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-10-12 20:24:32,481 INFO L432 NwaCegarLoop]: 616 mSDtfsCounter, 2227 mSDsluCounter, 1892 mSDsCounter, 0 mSdLazyCounter, 1696 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2227 SdHoareTripleChecker+Valid, 2508 SdHoareTripleChecker+Invalid, 1744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:32,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2227 Valid, 2508 Invalid, 1744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1696 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 20:24:32,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49975 states. [2024-10-12 20:24:32,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49975 to 32051. [2024-10-12 20:24:32,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32051 states, 32050 states have (on average 1.3766302652106084) internal successors, (44121), 32050 states have internal predecessors, (44121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:32,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32051 states to 32051 states and 44121 transitions. [2024-10-12 20:24:32,977 INFO L78 Accepts]: Start accepts. Automaton has 32051 states and 44121 transitions. Word has length 86 [2024-10-12 20:24:32,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:32,977 INFO L471 AbstractCegarLoop]: Abstraction has 32051 states and 44121 transitions. [2024-10-12 20:24:32,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:32,977 INFO L276 IsEmpty]: Start isEmpty. Operand 32051 states and 44121 transitions. [2024-10-12 20:24:32,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-12 20:24:32,990 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:32,991 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:32,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-12 20:24:32,991 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:32,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:32,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1988916130, now seen corresponding path program 1 times [2024-10-12 20:24:32,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:32,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128049702] [2024-10-12 20:24:32,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:32,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:24:33,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:24:33,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:24:33,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:24:33,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128049702] [2024-10-12 20:24:33,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128049702] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:24:33,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:24:33,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:24:33,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951634220] [2024-10-12 20:24:33,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:24:33,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:24:33,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:24:33,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:24:33,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:24:33,068 INFO L87 Difference]: Start difference. First operand 32051 states and 44121 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:33,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:24:33,322 INFO L93 Difference]: Finished difference Result 60058 states and 83249 transitions. [2024-10-12 20:24:33,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:24:33,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2024-10-12 20:24:33,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:24:33,361 INFO L225 Difference]: With dead ends: 60058 [2024-10-12 20:24:33,362 INFO L226 Difference]: Without dead ends: 40132 [2024-10-12 20:24:33,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:24:33,377 INFO L432 NwaCegarLoop]: 1048 mSDtfsCounter, 920 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 1348 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:24:33,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 1348 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:24:33,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40132 states. [2024-10-12 20:24:33,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40132 to 30050. [2024-10-12 20:24:33,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30050 states, 30049 states have (on average 1.3808446204532596) internal successors, (41493), 30049 states have internal predecessors, (41493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:33,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30050 states to 30050 states and 41493 transitions. [2024-10-12 20:24:33,730 INFO L78 Accepts]: Start accepts. Automaton has 30050 states and 41493 transitions. Word has length 87 [2024-10-12 20:24:33,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:24:33,730 INFO L471 AbstractCegarLoop]: Abstraction has 30050 states and 41493 transitions. [2024-10-12 20:24:33,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:24:33,730 INFO L276 IsEmpty]: Start isEmpty. Operand 30050 states and 41493 transitions. [2024-10-12 20:24:33,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-12 20:24:33,741 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:24:33,741 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:24:33,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-12 20:24:33,741 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:24:33,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:24:33,742 INFO L85 PathProgramCache]: Analyzing trace with hash 90958188, now seen corresponding path program 1 times [2024-10-12 20:24:33,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:24:33,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240276203] [2024-10-12 20:24:33,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:24:33,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms