./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label32.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 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/eca-rers2012/Problem17_label32.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 758b6bdd5f0153469513ef6931f2486fab3d5fd3aa9f01cac0e5fdb67f3e5b48 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-23 21:31:25,797 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-23 21:31:25,872 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-23 21:31:25,884 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-23 21:31:25,885 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-23 21:31:25,914 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-23 21:31:25,915 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-23 21:31:25,915 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-23 21:31:25,916 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-23 21:31:25,916 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-23 21:31:25,917 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-23 21:31:25,917 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-23 21:31:25,918 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-23 21:31:25,918 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-23 21:31:25,918 INFO L153 SettingsManager]: * Use SBE=true [2024-10-23 21:31:25,919 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-23 21:31:25,919 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-23 21:31:25,920 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-23 21:31:25,920 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-23 21:31:25,920 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-23 21:31:25,921 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-23 21:31:25,921 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-23 21:31:25,922 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-23 21:31:25,922 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-23 21:31:25,922 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-23 21:31:25,923 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-23 21:31:25,923 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-23 21:31:25,923 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-23 21:31:25,924 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-23 21:31:25,924 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-23 21:31:25,924 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-23 21:31:25,924 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-23 21:31:25,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 21:31:25,925 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-23 21:31:25,926 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-23 21:31:25,926 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-23 21:31:25,927 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-23 21:31:25,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-23 21:31:25,927 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-23 21:31:25,928 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-23 21:31:25,928 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-23 21:31:25,928 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-23 21:31:25,929 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 758b6bdd5f0153469513ef6931f2486fab3d5fd3aa9f01cac0e5fdb67f3e5b48 [2024-10-23 21:31:26,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-23 21:31:26,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-23 21:31:26,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-23 21:31:26,218 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-23 21:31:26,218 INFO L274 PluginConnector]: CDTParser initialized [2024-10-23 21:31:26,219 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label32.c [2024-10-23 21:31:27,639 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-23 21:31:28,020 INFO L384 CDTParser]: Found 1 translation units. [2024-10-23 21:31:28,021 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label32.c [2024-10-23 21:31:28,055 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df37908f1/79cf6900a17c45abbac98a5d760a1503/FLAG09b9172ed [2024-10-23 21:31:28,073 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df37908f1/79cf6900a17c45abbac98a5d760a1503 [2024-10-23 21:31:28,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-23 21:31:28,077 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-23 21:31:28,079 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-23 21:31:28,079 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-23 21:31:28,085 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-23 21:31:28,086 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:31:28" (1/1) ... [2024-10-23 21:31:28,087 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b97e373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:31:28, skipping insertion in model container [2024-10-23 21:31:28,088 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:31:28" (1/1) ... [2024-10-23 21:31:28,180 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-23 21:31:28,458 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/eca-rers2012/Problem17_label32.c[7145,7158] [2024-10-23 21:31:29,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 21:31:29,024 INFO L200 MainTranslator]: Completed pre-run [2024-10-23 21:31:29,079 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/eca-rers2012/Problem17_label32.c[7145,7158] [2024-10-23 21:31:29,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 21:31:29,311 INFO L204 MainTranslator]: Completed translation [2024-10-23 21:31:29,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:31:29 WrapperNode [2024-10-23 21:31:29,312 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-23 21:31:29,313 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-23 21:31:29,314 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-23 21:31:29,314 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-23 21:31:29,320 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:31:29" (1/1) ... [2024-10-23 21:31:29,375 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:31:29" (1/1) ... [2024-10-23 21:31:29,630 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2613 [2024-10-23 21:31:29,630 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-23 21:31:29,631 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-23 21:31:29,632 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-23 21:31:29,632 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-23 21:31:29,642 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:31:29" (1/1) ... [2024-10-23 21:31:29,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:31:29" (1/1) ... [2024-10-23 21:31:29,679 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:31:29" (1/1) ... [2024-10-23 21:31:29,957 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]. [2024-10-23 21:31:29,957 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:31:29" (1/1) ... [2024-10-23 21:31:29,958 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:31:29" (1/1) ... [2024-10-23 21:31:30,136 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:31:29" (1/1) ... [2024-10-23 21:31:30,163 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:31:29" (1/1) ... [2024-10-23 21:31:30,187 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:31:29" (1/1) ... [2024-10-23 21:31:30,203 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:31:29" (1/1) ... [2024-10-23 21:31:30,249 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-23 21:31:30,250 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-23 21:31:30,251 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-23 21:31:30,251 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-23 21:31:30,252 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:31:29" (1/1) ... [2024-10-23 21:31:30,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 21:31:30,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:31:30,279 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) [2024-10-23 21:31:30,281 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 [2024-10-23 21:31:30,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-23 21:31:30,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-23 21:31:30,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-23 21:31:30,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-23 21:31:30,392 INFO L238 CfgBuilder]: Building ICFG [2024-10-23 21:31:30,394 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-23 21:31:33,533 INFO L? ?]: Removed 372 outVars from TransFormulas that were not future-live. [2024-10-23 21:31:33,534 INFO L287 CfgBuilder]: Performing block encoding [2024-10-23 21:31:33,599 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-23 21:31:33,599 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-23 21:31:33,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:31:33 BoogieIcfgContainer [2024-10-23 21:31:33,600 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-23 21:31:33,602 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-23 21:31:33,603 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-23 21:31:33,606 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-23 21:31:33,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:31:28" (1/3) ... [2024-10-23 21:31:33,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@695d54c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:31:33, skipping insertion in model container [2024-10-23 21:31:33,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:31:29" (2/3) ... [2024-10-23 21:31:33,609 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@695d54c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:31:33, skipping insertion in model container [2024-10-23 21:31:33,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:31:33" (3/3) ... [2024-10-23 21:31:33,610 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label32.c [2024-10-23 21:31:33,626 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-23 21:31:33,626 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-23 21:31:33,716 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-23 21:31:33,724 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;@467d2aa4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-23 21:31:33,725 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-23 21:31:33,730 INFO L276 IsEmpty]: Start isEmpty. Operand has 528 states, 526 states have (on average 1.9011406844106464) internal successors, (1000), 527 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:33,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-23 21:31:33,739 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:31:33,740 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] [2024-10-23 21:31:33,741 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:31:33,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:31:33,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1972493708, now seen corresponding path program 1 times [2024-10-23 21:31:33,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:31:33,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404881722] [2024-10-23 21:31:33,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:31:33,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:31:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:31:33,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:31:33,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:31:33,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404881722] [2024-10-23 21:31:33,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404881722] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:31:33,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:31:33,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:31:33,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899294562] [2024-10-23 21:31:33,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:31:33,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-23 21:31:33,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:31:33,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-23 21:31:33,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 21:31:33,998 INFO L87 Difference]: Start difference. First operand has 528 states, 526 states have (on average 1.9011406844106464) internal successors, (1000), 527 states have internal predecessors, (1000), 0 states have call successors, (0), 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 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:34,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:31:34,073 INFO L93 Difference]: Finished difference Result 1055 states and 1999 transitions. [2024-10-23 21:31:34,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-23 21:31:34,077 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2024-10-23 21:31:34,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:31:34,097 INFO L225 Difference]: With dead ends: 1055 [2024-10-23 21:31:34,098 INFO L226 Difference]: Without dead ends: 526 [2024-10-23 21:31:34,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 21:31:34,109 INFO L432 NwaCegarLoop]: 935 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-23 21:31:34,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 935 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-23 21:31:34,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2024-10-23 21:31:34,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2024-10-23 21:31:34,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 525 states have (on average 1.7809523809523808) internal successors, (935), 525 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:34,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 935 transitions. [2024-10-23 21:31:34,179 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 935 transitions. Word has length 47 [2024-10-23 21:31:34,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:31:34,179 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 935 transitions. [2024-10-23 21:31:34,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:34,180 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 935 transitions. [2024-10-23 21:31:34,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-23 21:31:34,181 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:31:34,181 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] [2024-10-23 21:31:34,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-23 21:31:34,182 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:31:34,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:31:34,183 INFO L85 PathProgramCache]: Analyzing trace with hash -974117734, now seen corresponding path program 1 times [2024-10-23 21:31:34,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:31:34,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005197586] [2024-10-23 21:31:34,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:31:34,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:31:34,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:31:34,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:31:34,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:31:34,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005197586] [2024-10-23 21:31:34,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005197586] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:31:34,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:31:34,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:31:34,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851373096] [2024-10-23 21:31:34,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:31:34,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:31:34,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:31:34,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:31:34,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:31:34,396 INFO L87 Difference]: Start difference. First operand 526 states and 935 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:36,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:31:36,551 INFO L93 Difference]: Finished difference Result 1501 states and 2698 transitions. [2024-10-23 21:31:36,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:31:36,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2024-10-23 21:31:36,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:31:36,556 INFO L225 Difference]: With dead ends: 1501 [2024-10-23 21:31:36,557 INFO L226 Difference]: Without dead ends: 976 [2024-10-23 21:31:36,559 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:31:36,560 INFO L432 NwaCegarLoop]: 373 mSDtfsCounter, 424 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 1683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-23 21:31:36,560 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 448 Invalid, 1683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-23 21:31:36,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2024-10-23 21:31:36,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 970. [2024-10-23 21:31:36,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 969 states have (on average 1.5541795665634675) internal successors, (1506), 969 states have internal predecessors, (1506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:36,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1506 transitions. [2024-10-23 21:31:36,603 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1506 transitions. Word has length 47 [2024-10-23 21:31:36,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:31:36,603 INFO L471 AbstractCegarLoop]: Abstraction has 970 states and 1506 transitions. [2024-10-23 21:31:36,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:36,604 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1506 transitions. [2024-10-23 21:31:36,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-23 21:31:36,607 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:31:36,607 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:31:36,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-23 21:31:36,607 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:31:36,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:31:36,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1660719070, now seen corresponding path program 1 times [2024-10-23 21:31:36,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:31:36,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321029885] [2024-10-23 21:31:36,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:31:36,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:31:36,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:31:36,783 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:31:36,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:31:36,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321029885] [2024-10-23 21:31:36,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321029885] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:31:36,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:31:36,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:31:36,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398701219] [2024-10-23 21:31:36,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:31:36,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:31:36,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:31:36,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:31:36,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:31:36,787 INFO L87 Difference]: Start difference. First operand 970 states and 1506 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:38,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:31:38,912 INFO L93 Difference]: Finished difference Result 2812 states and 4380 transitions. [2024-10-23 21:31:38,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:31:38,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2024-10-23 21:31:38,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:31:38,920 INFO L225 Difference]: With dead ends: 2812 [2024-10-23 21:31:38,920 INFO L226 Difference]: Without dead ends: 1843 [2024-10-23 21:31:38,921 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:31:38,923 INFO L432 NwaCegarLoop]: 504 mSDtfsCounter, 405 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 1707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-23 21:31:38,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 577 Invalid, 1707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-23 21:31:38,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1843 states. [2024-10-23 21:31:38,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1843 to 1840. [2024-10-23 21:31:38,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1840 states, 1839 states have (on average 1.3501903208265362) internal successors, (2483), 1839 states have internal predecessors, (2483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:38,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1840 states to 1840 states and 2483 transitions. [2024-10-23 21:31:38,971 INFO L78 Accepts]: Start accepts. Automaton has 1840 states and 2483 transitions. Word has length 114 [2024-10-23 21:31:38,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:31:38,972 INFO L471 AbstractCegarLoop]: Abstraction has 1840 states and 2483 transitions. [2024-10-23 21:31:38,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:38,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1840 states and 2483 transitions. [2024-10-23 21:31:38,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-23 21:31:38,977 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:31:38,978 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:31:38,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-23 21:31:38,978 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:31:38,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:31:38,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1630598586, now seen corresponding path program 1 times [2024-10-23 21:31:38,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:31:38,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074623348] [2024-10-23 21:31:38,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:31:38,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:31:39,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:31:39,302 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:31:39,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:31:39,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074623348] [2024-10-23 21:31:39,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074623348] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:31:39,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:31:39,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:31:39,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038764568] [2024-10-23 21:31:39,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:31:39,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:31:39,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:31:39,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:31:39,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:31:39,304 INFO L87 Difference]: Start difference. First operand 1840 states and 2483 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:42,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:31:42,659 INFO L93 Difference]: Finished difference Result 6766 states and 9258 transitions. [2024-10-23 21:31:42,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:31:42,659 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2024-10-23 21:31:42,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:31:42,683 INFO L225 Difference]: With dead ends: 6766 [2024-10-23 21:31:42,683 INFO L226 Difference]: Without dead ends: 4927 [2024-10-23 21:31:42,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:31:42,693 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 866 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 2791 mSolverCounterSat, 593 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 3384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 593 IncrementalHoareTripleChecker+Valid, 2791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-10-23 21:31:42,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 325 Invalid, 3384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [593 Valid, 2791 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-10-23 21:31:42,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4927 states. [2024-10-23 21:31:42,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4927 to 4874. [2024-10-23 21:31:42,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4874 states, 4873 states have (on average 1.2866817155756207) internal successors, (6270), 4873 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:42,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4874 states to 4874 states and 6270 transitions. [2024-10-23 21:31:42,791 INFO L78 Accepts]: Start accepts. Automaton has 4874 states and 6270 transitions. Word has length 117 [2024-10-23 21:31:42,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:31:42,791 INFO L471 AbstractCegarLoop]: Abstraction has 4874 states and 6270 transitions. [2024-10-23 21:31:42,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:42,792 INFO L276 IsEmpty]: Start isEmpty. Operand 4874 states and 6270 transitions. [2024-10-23 21:31:42,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-10-23 21:31:42,800 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:31:42,800 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-23 21:31:42,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-23 21:31:42,801 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:31:42,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:31:42,801 INFO L85 PathProgramCache]: Analyzing trace with hash 2142769265, now seen corresponding path program 1 times [2024-10-23 21:31:42,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:31:42,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82169314] [2024-10-23 21:31:42,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:31:42,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:31:42,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:31:43,048 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-10-23 21:31:43,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:31:43,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82169314] [2024-10-23 21:31:43,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82169314] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:31:43,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:31:43,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:31:43,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283497158] [2024-10-23 21:31:43,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:31:43,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:31:43,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:31:43,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:31:43,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:31:43,052 INFO L87 Difference]: Start difference. First operand 4874 states and 6270 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:44,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:31:44,741 INFO L93 Difference]: Finished difference Result 14435 states and 18543 transitions. [2024-10-23 21:31:44,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:31:44,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 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 186 [2024-10-23 21:31:44,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:31:44,766 INFO L225 Difference]: With dead ends: 14435 [2024-10-23 21:31:44,766 INFO L226 Difference]: Without dead ends: 8276 [2024-10-23 21:31:44,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:31:44,774 INFO L432 NwaCegarLoop]: 514 mSDtfsCounter, 386 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-23 21:31:44,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 589 Invalid, 1630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-23 21:31:44,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8276 states. [2024-10-23 21:31:44,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8276 to 6575. [2024-10-23 21:31:44,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6575 states, 6574 states have (on average 1.179342865835108) internal successors, (7753), 6574 states have internal predecessors, (7753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:44,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6575 states to 6575 states and 7753 transitions. [2024-10-23 21:31:44,886 INFO L78 Accepts]: Start accepts. Automaton has 6575 states and 7753 transitions. Word has length 186 [2024-10-23 21:31:44,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:31:44,887 INFO L471 AbstractCegarLoop]: Abstraction has 6575 states and 7753 transitions. [2024-10-23 21:31:44,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:44,887 INFO L276 IsEmpty]: Start isEmpty. Operand 6575 states and 7753 transitions. [2024-10-23 21:31:44,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-10-23 21:31:44,889 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:31:44,890 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:31:44,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-23 21:31:44,890 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:31:44,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:31:44,891 INFO L85 PathProgramCache]: Analyzing trace with hash 543451837, now seen corresponding path program 1 times [2024-10-23 21:31:44,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:31:44,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399663009] [2024-10-23 21:31:44,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:31:44,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:31:44,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:31:45,102 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:31:45,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:31:45,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399663009] [2024-10-23 21:31:45,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399663009] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:31:45,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:31:45,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:31:45,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314375952] [2024-10-23 21:31:45,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:31:45,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:31:45,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:31:45,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:31:45,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:31:45,107 INFO L87 Difference]: Start difference. First operand 6575 states and 7753 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:46,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:31:46,665 INFO L93 Difference]: Finished difference Result 16559 states and 19930 transitions. [2024-10-23 21:31:46,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:31:46,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 199 [2024-10-23 21:31:46,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:31:46,693 INFO L225 Difference]: With dead ends: 16559 [2024-10-23 21:31:46,693 INFO L226 Difference]: Without dead ends: 9985 [2024-10-23 21:31:46,701 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 [2024-10-23 21:31:46,702 INFO L432 NwaCegarLoop]: 741 mSDtfsCounter, 496 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1228 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 1549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 1228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-23 21:31:46,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 798 Invalid, 1549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 1228 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-23 21:31:46,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9985 states. [2024-10-23 21:31:46,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9985 to 9985. [2024-10-23 21:31:46,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9985 states, 9984 states have (on average 1.1696714743589745) internal successors, (11678), 9984 states have internal predecessors, (11678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:46,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9985 states to 9985 states and 11678 transitions. [2024-10-23 21:31:46,890 INFO L78 Accepts]: Start accepts. Automaton has 9985 states and 11678 transitions. Word has length 199 [2024-10-23 21:31:46,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:31:46,890 INFO L471 AbstractCegarLoop]: Abstraction has 9985 states and 11678 transitions. [2024-10-23 21:31:46,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:46,891 INFO L276 IsEmpty]: Start isEmpty. Operand 9985 states and 11678 transitions. [2024-10-23 21:31:46,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-10-23 21:31:46,893 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:31:46,893 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:31:46,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-23 21:31:46,894 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:31:46,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:31:46,894 INFO L85 PathProgramCache]: Analyzing trace with hash 217973048, now seen corresponding path program 1 times [2024-10-23 21:31:46,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:31:46,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542267034] [2024-10-23 21:31:46,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:31:46,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:31:46,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:31:47,032 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-23 21:31:47,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:31:47,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542267034] [2024-10-23 21:31:47,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542267034] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:31:47,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:31:47,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:31:47,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416380760] [2024-10-23 21:31:47,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:31:47,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:31:47,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:31:47,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:31:47,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:31:47,036 INFO L87 Difference]: Start difference. First operand 9985 states and 11678 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:48,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:31:48,810 INFO L93 Difference]: Finished difference Result 25066 states and 29586 transitions. [2024-10-23 21:31:48,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:31:48,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 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 201 [2024-10-23 21:31:48,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:31:48,858 INFO L225 Difference]: With dead ends: 25066 [2024-10-23 21:31:48,858 INFO L226 Difference]: Without dead ends: 15082 [2024-10-23 21:31:48,870 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 [2024-10-23 21:31:48,872 INFO L432 NwaCegarLoop]: 420 mSDtfsCounter, 405 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 1597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-23 21:31:48,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 484 Invalid, 1597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-23 21:31:48,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15082 states. [2024-10-23 21:31:49,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15082 to 10383. [2024-10-23 21:31:49,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10383 states, 10382 states have (on average 1.1651897514929686) internal successors, (12097), 10382 states have internal predecessors, (12097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:49,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10383 states to 10383 states and 12097 transitions. [2024-10-23 21:31:49,094 INFO L78 Accepts]: Start accepts. Automaton has 10383 states and 12097 transitions. Word has length 201 [2024-10-23 21:31:49,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:31:49,095 INFO L471 AbstractCegarLoop]: Abstraction has 10383 states and 12097 transitions. [2024-10-23 21:31:49,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:49,096 INFO L276 IsEmpty]: Start isEmpty. Operand 10383 states and 12097 transitions. [2024-10-23 21:31:49,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-10-23 21:31:49,102 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:31:49,102 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-23 21:31:49,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-23 21:31:49,103 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:31:49,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:31:49,103 INFO L85 PathProgramCache]: Analyzing trace with hash 46238716, now seen corresponding path program 1 times [2024-10-23 21:31:49,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:31:49,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889693814] [2024-10-23 21:31:49,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:31:49,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:31:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:31:49,273 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-10-23 21:31:49,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:31:49,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889693814] [2024-10-23 21:31:49,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889693814] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:31:49,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:31:49,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:31:49,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320802575] [2024-10-23 21:31:49,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:31:49,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:31:49,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:31:49,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:31:49,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:31:49,277 INFO L87 Difference]: Start difference. First operand 10383 states and 12097 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:50,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:31:50,994 INFO L93 Difference]: Finished difference Result 25873 states and 30416 transitions. [2024-10-23 21:31:50,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:31:50,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 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 214 [2024-10-23 21:31:50,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:31:51,022 INFO L225 Difference]: With dead ends: 25873 [2024-10-23 21:31:51,023 INFO L226 Difference]: Without dead ends: 15491 [2024-10-23 21:31:51,035 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 [2024-10-23 21:31:51,036 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 429 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1346 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 1649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 1346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-23 21:31:51,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 446 Invalid, 1649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 1346 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-23 21:31:51,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15491 states. [2024-10-23 21:31:51,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15491 to 13777. [2024-10-23 21:31:51,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13777 states, 13776 states have (on average 1.166521486643438) internal successors, (16070), 13776 states have internal predecessors, (16070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:51,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13777 states to 13777 states and 16070 transitions. [2024-10-23 21:31:51,308 INFO L78 Accepts]: Start accepts. Automaton has 13777 states and 16070 transitions. Word has length 214 [2024-10-23 21:31:51,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:31:51,310 INFO L471 AbstractCegarLoop]: Abstraction has 13777 states and 16070 transitions. [2024-10-23 21:31:51,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:51,311 INFO L276 IsEmpty]: Start isEmpty. Operand 13777 states and 16070 transitions. [2024-10-23 21:31:51,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-10-23 21:31:51,317 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:31:51,318 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:31:51,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-23 21:31:51,318 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:31:51,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:31:51,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1785549950, now seen corresponding path program 1 times [2024-10-23 21:31:51,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:31:51,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41473155] [2024-10-23 21:31:51,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:31:51,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:31:51,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:31:51,610 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-10-23 21:31:51,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:31:51,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41473155] [2024-10-23 21:31:51,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41473155] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:31:51,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:31:51,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:31:51,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165288860] [2024-10-23 21:31:51,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:31:51,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:31:51,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:31:51,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:31:51,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:31:51,615 INFO L87 Difference]: Start difference. First operand 13777 states and 16070 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:53,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:31:53,654 INFO L93 Difference]: Finished difference Result 32233 states and 37931 transitions. [2024-10-23 21:31:53,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:31:53,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 246 [2024-10-23 21:31:53,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:31:53,691 INFO L225 Difference]: With dead ends: 32233 [2024-10-23 21:31:53,691 INFO L226 Difference]: Without dead ends: 18457 [2024-10-23 21:31:53,707 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 [2024-10-23 21:31:53,709 INFO L432 NwaCegarLoop]: 370 mSDtfsCounter, 443 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 1675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-23 21:31:53,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 414 Invalid, 1675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 1391 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-23 21:31:53,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18457 states. [2024-10-23 21:31:53,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18457 to 17175. [2024-10-23 21:31:53,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17175 states, 17174 states have (on average 1.1833585652730871) internal successors, (20323), 17174 states have internal predecessors, (20323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:54,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17175 states to 17175 states and 20323 transitions. [2024-10-23 21:31:54,037 INFO L78 Accepts]: Start accepts. Automaton has 17175 states and 20323 transitions. Word has length 246 [2024-10-23 21:31:54,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:31:54,038 INFO L471 AbstractCegarLoop]: Abstraction has 17175 states and 20323 transitions. [2024-10-23 21:31:54,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:54,038 INFO L276 IsEmpty]: Start isEmpty. Operand 17175 states and 20323 transitions. [2024-10-23 21:31:54,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-10-23 21:31:54,042 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:31:54,043 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:31:54,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-23 21:31:54,043 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:31:54,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:31:54,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1627999608, now seen corresponding path program 1 times [2024-10-23 21:31:54,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:31:54,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117661876] [2024-10-23 21:31:54,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:31:54,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:31:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:31:54,407 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:31:54,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:31:54,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117661876] [2024-10-23 21:31:54,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117661876] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:31:54,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:31:54,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:31:54,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140494824] [2024-10-23 21:31:54,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:31:54,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:31:54,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:31:54,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:31:54,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:31:54,411 INFO L87 Difference]: Start difference. First operand 17175 states and 20323 transitions. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:56,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:31:56,182 INFO L93 Difference]: Finished difference Result 39056 states and 46414 transitions. [2024-10-23 21:31:56,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:31:56,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 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 263 [2024-10-23 21:31:56,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:31:56,211 INFO L225 Difference]: With dead ends: 39056 [2024-10-23 21:31:56,212 INFO L226 Difference]: Without dead ends: 21457 [2024-10-23 21:31:56,229 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 [2024-10-23 21:31:56,230 INFO L432 NwaCegarLoop]: 788 mSDtfsCounter, 356 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-23 21:31:56,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 861 Invalid, 1581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-23 21:31:56,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21457 states. [2024-10-23 21:31:56,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21457 to 21024. [2024-10-23 21:31:56,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21024 states, 21023 states have (on average 1.1667221614422298) internal successors, (24528), 21023 states have internal predecessors, (24528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:56,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21024 states to 21024 states and 24528 transitions. [2024-10-23 21:31:56,582 INFO L78 Accepts]: Start accepts. Automaton has 21024 states and 24528 transitions. Word has length 263 [2024-10-23 21:31:56,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:31:56,582 INFO L471 AbstractCegarLoop]: Abstraction has 21024 states and 24528 transitions. [2024-10-23 21:31:56,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:31:56,583 INFO L276 IsEmpty]: Start isEmpty. Operand 21024 states and 24528 transitions. [2024-10-23 21:31:56,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-10-23 21:31:56,586 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:31:56,587 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:31:56,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-23 21:31:56,587 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:31:56,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:31:56,588 INFO L85 PathProgramCache]: Analyzing trace with hash -2095019932, now seen corresponding path program 1 times [2024-10-23 21:31:56,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:31:56,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598796831] [2024-10-23 21:31:56,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:31:56,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:31:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:31:56,982 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 230 proven. 70 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-10-23 21:31:56,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:31:56,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598796831] [2024-10-23 21:31:56,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598796831] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 21:31:56,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317612934] [2024-10-23 21:31:56,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:31:56,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:31:56,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:31:56,985 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-23 21:31:56,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-23 21:31:57,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:31:57,122 INFO L255 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-23 21:31:57,133 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 21:31:57,393 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 230 proven. 70 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-10-23 21:31:57,393 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-23 21:31:57,708 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-10-23 21:31:57,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317612934] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-23 21:31:57,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-23 21:31:57,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 5 [2024-10-23 21:31:57,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006087084] [2024-10-23 21:31:57,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:31:57,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:31:57,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:31:57,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:31:57,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-23 21:31:57,711 INFO L87 Difference]: Start difference. First operand 21024 states and 24528 transitions. Second operand has 4 states, 4 states have (on average 56.5) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:00,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:00,761 INFO L93 Difference]: Finished difference Result 59099 states and 69387 transitions. [2024-10-23 21:32:00,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:32:00,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 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 271 [2024-10-23 21:32:00,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:00,804 INFO L225 Difference]: With dead ends: 59099 [2024-10-23 21:32:00,804 INFO L226 Difference]: Without dead ends: 37212 [2024-10-23 21:32:00,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 543 GetRequests, 539 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-23 21:32:00,828 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 878 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 2290 mSolverCounterSat, 726 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 878 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 3016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 726 IncrementalHoareTripleChecker+Valid, 2290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:00,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [878 Valid, 155 Invalid, 3016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [726 Valid, 2290 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-23 21:32:00,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37212 states. [2024-10-23 21:32:01,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37212 to 35505. [2024-10-23 21:32:01,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35505 states, 35504 states have (on average 1.159108832807571) internal successors, (41153), 35504 states have internal predecessors, (41153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:01,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35505 states to 35505 states and 41153 transitions. [2024-10-23 21:32:01,429 INFO L78 Accepts]: Start accepts. Automaton has 35505 states and 41153 transitions. Word has length 271 [2024-10-23 21:32:01,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:01,429 INFO L471 AbstractCegarLoop]: Abstraction has 35505 states and 41153 transitions. [2024-10-23 21:32:01,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:01,430 INFO L276 IsEmpty]: Start isEmpty. Operand 35505 states and 41153 transitions. [2024-10-23 21:32:01,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2024-10-23 21:32:01,435 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:01,435 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:01,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-23 21:32:01,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-23 21:32:01,636 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:01,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:01,637 INFO L85 PathProgramCache]: Analyzing trace with hash -656748581, now seen corresponding path program 1 times [2024-10-23 21:32:01,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:01,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837317554] [2024-10-23 21:32:01,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:01,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:01,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:01,906 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-10-23 21:32:01,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:01,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837317554] [2024-10-23 21:32:01,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837317554] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:01,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:01,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:32:01,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687124851] [2024-10-23 21:32:01,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:01,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:32:01,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:01,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:32:01,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:32:01,909 INFO L87 Difference]: Start difference. First operand 35505 states and 41153 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:03,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:03,477 INFO L93 Difference]: Finished difference Result 78653 states and 91328 transitions. [2024-10-23 21:32:03,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:32:03,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 279 [2024-10-23 21:32:03,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:03,523 INFO L225 Difference]: With dead ends: 78653 [2024-10-23 21:32:03,523 INFO L226 Difference]: Without dead ends: 42722 [2024-10-23 21:32:03,553 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 [2024-10-23 21:32:03,553 INFO L432 NwaCegarLoop]: 782 mSDtfsCounter, 380 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:03,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 847 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-23 21:32:03,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42722 states. [2024-10-23 21:32:04,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42722 to 42722. [2024-10-23 21:32:04,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42722 states, 42721 states have (on average 1.117085274221109) internal successors, (47723), 42721 states have internal predecessors, (47723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:04,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42722 states to 42722 states and 47723 transitions. [2024-10-23 21:32:04,158 INFO L78 Accepts]: Start accepts. Automaton has 42722 states and 47723 transitions. Word has length 279 [2024-10-23 21:32:04,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:04,159 INFO L471 AbstractCegarLoop]: Abstraction has 42722 states and 47723 transitions. [2024-10-23 21:32:04,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:04,159 INFO L276 IsEmpty]: Start isEmpty. Operand 42722 states and 47723 transitions. [2024-10-23 21:32:04,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2024-10-23 21:32:04,166 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:04,167 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:04,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-23 21:32:04,167 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:04,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:04,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1666856642, now seen corresponding path program 1 times [2024-10-23 21:32:04,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:04,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382339278] [2024-10-23 21:32:04,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:04,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:04,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:04,810 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 371 proven. 73 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-10-23 21:32:04,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:04,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382339278] [2024-10-23 21:32:04,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382339278] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 21:32:04,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708232945] [2024-10-23 21:32:04,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:04,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:32:04,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:32:04,813 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-23 21:32:04,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-23 21:32:04,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:04,953 INFO L255 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-23 21:32:04,964 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 21:32:05,161 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 371 proven. 73 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-10-23 21:32:05,161 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-23 21:32:05,435 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 444 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-10-23 21:32:05,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [708232945] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-23 21:32:05,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-23 21:32:05,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 5 [2024-10-23 21:32:05,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298649654] [2024-10-23 21:32:05,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:05,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:32:05,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:05,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:32:05,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-23 21:32:05,438 INFO L87 Difference]: Start difference. First operand 42722 states and 47723 transitions. Second operand has 4 states, 4 states have (on average 57.75) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:07,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:07,996 INFO L93 Difference]: Finished difference Result 101642 states and 113663 transitions. [2024-10-23 21:32:07,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:32:07,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 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 345 [2024-10-23 21:32:07,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:08,064 INFO L225 Difference]: With dead ends: 101642 [2024-10-23 21:32:08,064 INFO L226 Difference]: Without dead ends: 58492 [2024-10-23 21:32:08,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 691 GetRequests, 687 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-23 21:32:08,097 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 879 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 2298 mSolverCounterSat, 574 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 2872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 574 IncrementalHoareTripleChecker+Valid, 2298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:08,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [879 Valid, 169 Invalid, 2872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [574 Valid, 2298 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-23 21:32:08,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58492 states. [2024-10-23 21:32:08,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58492 to 55939. [2024-10-23 21:32:08,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55939 states, 55938 states have (on average 1.121062605026994) internal successors, (62710), 55938 states have internal predecessors, (62710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:08,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55939 states to 55939 states and 62710 transitions. [2024-10-23 21:32:08,919 INFO L78 Accepts]: Start accepts. Automaton has 55939 states and 62710 transitions. Word has length 345 [2024-10-23 21:32:08,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:08,920 INFO L471 AbstractCegarLoop]: Abstraction has 55939 states and 62710 transitions. [2024-10-23 21:32:08,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:08,920 INFO L276 IsEmpty]: Start isEmpty. Operand 55939 states and 62710 transitions. [2024-10-23 21:32:08,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2024-10-23 21:32:08,934 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:08,934 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:08,952 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-23 21:32:09,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-23 21:32:09,139 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:09,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:09,140 INFO L85 PathProgramCache]: Analyzing trace with hash -252621212, now seen corresponding path program 1 times [2024-10-23 21:32:09,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:09,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897892008] [2024-10-23 21:32:09,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:09,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:09,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:09,825 INFO L134 CoverageAnalysis]: Checked inductivity of 673 backedges. 444 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2024-10-23 21:32:09,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:09,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897892008] [2024-10-23 21:32:09,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897892008] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:09,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:09,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:32:09,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629171176] [2024-10-23 21:32:09,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:09,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:32:09,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:09,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:32:09,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:32:09,830 INFO L87 Difference]: Start difference. First operand 55939 states and 62710 transitions. Second operand has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:11,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:11,438 INFO L93 Difference]: Finished difference Result 121240 states and 135986 transitions. [2024-10-23 21:32:11,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:32:11,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 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 442 [2024-10-23 21:32:11,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:11,508 INFO L225 Difference]: With dead ends: 121240 [2024-10-23 21:32:11,509 INFO L226 Difference]: Without dead ends: 64877 [2024-10-23 21:32:11,534 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 [2024-10-23 21:32:11,534 INFO L432 NwaCegarLoop]: 715 mSDtfsCounter, 339 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 1156 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 1156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:11,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 771 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 1156 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-23 21:32:11,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64877 states. [2024-10-23 21:32:12,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64877 to 53349. [2024-10-23 21:32:12,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53349 states, 53348 states have (on average 1.107689135487741) internal successors, (59093), 53348 states have internal predecessors, (59093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:12,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53349 states to 53349 states and 59093 transitions. [2024-10-23 21:32:12,459 INFO L78 Accepts]: Start accepts. Automaton has 53349 states and 59093 transitions. Word has length 442 [2024-10-23 21:32:12,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:12,460 INFO L471 AbstractCegarLoop]: Abstraction has 53349 states and 59093 transitions. [2024-10-23 21:32:12,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:12,460 INFO L276 IsEmpty]: Start isEmpty. Operand 53349 states and 59093 transitions. [2024-10-23 21:32:12,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2024-10-23 21:32:12,471 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:12,471 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:12,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-23 21:32:12,472 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:12,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:12,472 INFO L85 PathProgramCache]: Analyzing trace with hash -51080471, now seen corresponding path program 1 times [2024-10-23 21:32:12,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:12,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581897014] [2024-10-23 21:32:12,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:12,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:12,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:12,975 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 563 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-10-23 21:32:12,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:12,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581897014] [2024-10-23 21:32:12,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581897014] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:12,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:12,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:32:12,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576983988] [2024-10-23 21:32:12,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:12,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:32:12,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:12,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:32:12,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:32:12,978 INFO L87 Difference]: Start difference. First operand 53349 states and 59093 transitions. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:14,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:14,677 INFO L93 Difference]: Finished difference Result 119900 states and 132833 transitions. [2024-10-23 21:32:14,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:32:14,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 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 443 [2024-10-23 21:32:14,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:14,751 INFO L225 Difference]: With dead ends: 119900 [2024-10-23 21:32:14,751 INFO L226 Difference]: Without dead ends: 63989 [2024-10-23 21:32:14,915 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 [2024-10-23 21:32:14,915 INFO L432 NwaCegarLoop]: 618 mSDtfsCounter, 437 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 1508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 311 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:14,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 656 Invalid, 1508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [311 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-23 21:32:14,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63989 states. [2024-10-23 21:32:15,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63989 to 61850. [2024-10-23 21:32:15,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61850 states, 61849 states have (on average 1.0961211984025612) internal successors, (67794), 61849 states have internal predecessors, (67794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:15,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61850 states to 61850 states and 67794 transitions. [2024-10-23 21:32:15,644 INFO L78 Accepts]: Start accepts. Automaton has 61850 states and 67794 transitions. Word has length 443 [2024-10-23 21:32:15,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:15,644 INFO L471 AbstractCegarLoop]: Abstraction has 61850 states and 67794 transitions. [2024-10-23 21:32:15,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:15,644 INFO L276 IsEmpty]: Start isEmpty. Operand 61850 states and 67794 transitions. [2024-10-23 21:32:15,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2024-10-23 21:32:15,657 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:15,657 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:15,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-23 21:32:15,658 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:15,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:15,658 INFO L85 PathProgramCache]: Analyzing trace with hash -974654688, now seen corresponding path program 1 times [2024-10-23 21:32:15,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:15,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457684691] [2024-10-23 21:32:15,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:15,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:16,416 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 642 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-10-23 21:32:16,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:16,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457684691] [2024-10-23 21:32:16,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457684691] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:16,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:16,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-23 21:32:16,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916392069] [2024-10-23 21:32:16,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:16,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:32:16,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:16,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:32:16,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:32:16,419 INFO L87 Difference]: Start difference. First operand 61850 states and 67794 transitions. Second operand has 4 states, 4 states have (on average 100.5) internal successors, (402), 4 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:19,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:19,042 INFO L93 Difference]: Finished difference Result 145470 states and 159570 transitions. [2024-10-23 21:32:19,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:32:19,042 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 100.5) internal successors, (402), 4 states have internal predecessors, (402), 0 states have call successors, (0), 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 447 [2024-10-23 21:32:19,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:19,143 INFO L225 Difference]: With dead ends: 145470 [2024-10-23 21:32:19,143 INFO L226 Difference]: Without dead ends: 83621 [2024-10-23 21:32:19,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:32:19,188 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 827 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 2317 mSolverCounterSat, 463 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 2780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 463 IncrementalHoareTripleChecker+Valid, 2317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:19,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 204 Invalid, 2780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [463 Valid, 2317 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-23 21:32:19,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83621 states. [2024-10-23 21:32:20,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83621 to 78924. [2024-10-23 21:32:20,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78924 states, 78923 states have (on average 1.097968906402443) internal successors, (86655), 78923 states have internal predecessors, (86655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:20,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78924 states to 78924 states and 86655 transitions. [2024-10-23 21:32:20,252 INFO L78 Accepts]: Start accepts. Automaton has 78924 states and 86655 transitions. Word has length 447 [2024-10-23 21:32:20,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:20,253 INFO L471 AbstractCegarLoop]: Abstraction has 78924 states and 86655 transitions. [2024-10-23 21:32:20,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 100.5) internal successors, (402), 4 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:20,253 INFO L276 IsEmpty]: Start isEmpty. Operand 78924 states and 86655 transitions. [2024-10-23 21:32:20,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2024-10-23 21:32:20,261 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:20,261 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:20,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-23 21:32:20,261 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:20,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:20,262 INFO L85 PathProgramCache]: Analyzing trace with hash -801670834, now seen corresponding path program 1 times [2024-10-23 21:32:20,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:20,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970366149] [2024-10-23 21:32:20,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:20,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:20,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:20,835 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 602 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-10-23 21:32:20,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:20,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970366149] [2024-10-23 21:32:20,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970366149] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:20,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:20,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:32:20,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162831834] [2024-10-23 21:32:20,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:20,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:32:20,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:20,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:32:20,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:32:20,837 INFO L87 Difference]: Start difference. First operand 78924 states and 86655 transitions. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:22,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:22,706 INFO L93 Difference]: Finished difference Result 167640 states and 184226 transitions. [2024-10-23 21:32:22,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:32:22,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 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 466 [2024-10-23 21:32:22,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:22,800 INFO L225 Difference]: With dead ends: 167640 [2024-10-23 21:32:22,800 INFO L226 Difference]: Without dead ends: 88717 [2024-10-23 21:32:22,841 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 [2024-10-23 21:32:22,842 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 385 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1221 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 1221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:22,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 324 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 1221 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-23 21:32:22,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88717 states. [2024-10-23 21:32:24,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88717 to 88285. [2024-10-23 21:32:24,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88285 states, 88284 states have (on average 1.095340038965158) internal successors, (96701), 88284 states have internal predecessors, (96701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:24,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88285 states to 88285 states and 96701 transitions. [2024-10-23 21:32:24,357 INFO L78 Accepts]: Start accepts. Automaton has 88285 states and 96701 transitions. Word has length 466 [2024-10-23 21:32:24,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:24,358 INFO L471 AbstractCegarLoop]: Abstraction has 88285 states and 96701 transitions. [2024-10-23 21:32:24,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:24,358 INFO L276 IsEmpty]: Start isEmpty. Operand 88285 states and 96701 transitions. [2024-10-23 21:32:24,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2024-10-23 21:32:24,365 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:24,365 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:24,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-23 21:32:24,365 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:24,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:24,365 INFO L85 PathProgramCache]: Analyzing trace with hash -231922372, now seen corresponding path program 1 times [2024-10-23 21:32:24,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:24,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955297426] [2024-10-23 21:32:24,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:24,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:24,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:24,630 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2024-10-23 21:32:24,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:24,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955297426] [2024-10-23 21:32:24,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955297426] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:24,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:24,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:32:24,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804070715] [2024-10-23 21:32:24,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:24,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:32:24,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:24,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:32:24,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:32:24,632 INFO L87 Difference]: Start difference. First operand 88285 states and 96701 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:26,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:26,500 INFO L93 Difference]: Finished difference Result 190189 states and 208576 transitions. [2024-10-23 21:32:26,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:32:26,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 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 490 [2024-10-23 21:32:26,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:26,623 INFO L225 Difference]: With dead ends: 190189 [2024-10-23 21:32:26,623 INFO L226 Difference]: Without dead ends: 101905 [2024-10-23 21:32:26,676 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 [2024-10-23 21:32:26,676 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 474 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:26,677 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 262 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 1241 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-23 21:32:26,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101905 states. [2024-10-23 21:32:28,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101905 to 101448. [2024-10-23 21:32:28,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101448 states, 101447 states have (on average 1.0927972241663135) internal successors, (110861), 101447 states have internal predecessors, (110861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:28,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101448 states to 101448 states and 110861 transitions. [2024-10-23 21:32:28,228 INFO L78 Accepts]: Start accepts. Automaton has 101448 states and 110861 transitions. Word has length 490 [2024-10-23 21:32:28,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:28,229 INFO L471 AbstractCegarLoop]: Abstraction has 101448 states and 110861 transitions. [2024-10-23 21:32:28,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:28,229 INFO L276 IsEmpty]: Start isEmpty. Operand 101448 states and 110861 transitions. [2024-10-23 21:32:28,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2024-10-23 21:32:28,239 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:28,239 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:28,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-23 21:32:28,240 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:28,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:28,240 INFO L85 PathProgramCache]: Analyzing trace with hash 5549529, now seen corresponding path program 1 times [2024-10-23 21:32:28,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:28,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917959015] [2024-10-23 21:32:28,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:28,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:28,554 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-23 21:32:28,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:28,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917959015] [2024-10-23 21:32:28,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917959015] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:28,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:28,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:32:28,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666346537] [2024-10-23 21:32:28,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:28,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:32:28,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:28,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:32:28,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:32:28,557 INFO L87 Difference]: Start difference. First operand 101448 states and 110861 transitions. Second operand has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:30,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:30,634 INFO L93 Difference]: Finished difference Result 208446 states and 227580 transitions. [2024-10-23 21:32:30,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:32:30,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 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 493 [2024-10-23 21:32:30,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:30,765 INFO L225 Difference]: With dead ends: 208446 [2024-10-23 21:32:30,765 INFO L226 Difference]: Without dead ends: 105292 [2024-10-23 21:32:30,828 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 [2024-10-23 21:32:30,828 INFO L432 NwaCegarLoop]: 750 mSDtfsCounter, 401 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:30,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 804 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-23 21:32:30,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105292 states. [2024-10-23 21:32:32,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105292 to 102291. [2024-10-23 21:32:32,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102291 states, 102290 states have (on average 1.0912112620979568) internal successors, (111620), 102290 states have internal predecessors, (111620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:32,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102291 states to 102291 states and 111620 transitions. [2024-10-23 21:32:32,431 INFO L78 Accepts]: Start accepts. Automaton has 102291 states and 111620 transitions. Word has length 493 [2024-10-23 21:32:32,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:32,432 INFO L471 AbstractCegarLoop]: Abstraction has 102291 states and 111620 transitions. [2024-10-23 21:32:32,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:32,432 INFO L276 IsEmpty]: Start isEmpty. Operand 102291 states and 111620 transitions. [2024-10-23 21:32:32,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2024-10-23 21:32:32,445 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:32,445 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:32,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-23 21:32:32,446 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:32,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:32,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1829229037, now seen corresponding path program 1 times [2024-10-23 21:32:32,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:32,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915968529] [2024-10-23 21:32:32,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:32,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:33,262 INFO L134 CoverageAnalysis]: Checked inductivity of 798 backedges. 516 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2024-10-23 21:32:33,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:33,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915968529] [2024-10-23 21:32:33,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915968529] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:33,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:33,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-23 21:32:33,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176181130] [2024-10-23 21:32:33,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:33,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:32:33,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:33,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:32:33,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:32:33,266 INFO L87 Difference]: Start difference. First operand 102291 states and 111620 transitions. Second operand has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:36,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:36,542 INFO L93 Difference]: Finished difference Result 212666 states and 231694 transitions. [2024-10-23 21:32:36,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:32:36,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 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 531 [2024-10-23 21:32:36,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:36,663 INFO L225 Difference]: With dead ends: 212666 [2024-10-23 21:32:36,664 INFO L226 Difference]: Without dead ends: 110800 [2024-10-23 21:32:36,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:32:36,687 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 792 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 2830 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 3203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 2830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:36,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 378 Invalid, 3203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 2830 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-23 21:32:36,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110800 states. [2024-10-23 21:32:37,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110800 to 106120. [2024-10-23 21:32:37,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106120 states, 106119 states have (on average 1.0823980625524177) internal successors, (114863), 106119 states have internal predecessors, (114863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:37,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106120 states to 106120 states and 114863 transitions. [2024-10-23 21:32:37,971 INFO L78 Accepts]: Start accepts. Automaton has 106120 states and 114863 transitions. Word has length 531 [2024-10-23 21:32:37,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:37,971 INFO L471 AbstractCegarLoop]: Abstraction has 106120 states and 114863 transitions. [2024-10-23 21:32:37,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:37,972 INFO L276 IsEmpty]: Start isEmpty. Operand 106120 states and 114863 transitions. [2024-10-23 21:32:37,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2024-10-23 21:32:37,985 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:37,985 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:37,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-23 21:32:37,985 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:37,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:37,986 INFO L85 PathProgramCache]: Analyzing trace with hash 741137153, now seen corresponding path program 1 times [2024-10-23 21:32:37,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:37,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110593152] [2024-10-23 21:32:37,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:37,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:38,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:38,744 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-23 21:32:38,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:38,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110593152] [2024-10-23 21:32:38,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110593152] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:38,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:38,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:32:38,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492349344] [2024-10-23 21:32:38,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:38,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:32:38,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:38,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:32:38,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:32:38,746 INFO L87 Difference]: Start difference. First operand 106120 states and 114863 transitions. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:40,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:40,513 INFO L93 Difference]: Finished difference Result 219903 states and 237641 transitions. [2024-10-23 21:32:40,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:32:40,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 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 538 [2024-10-23 21:32:40,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:41,025 INFO L225 Difference]: With dead ends: 219903 [2024-10-23 21:32:41,025 INFO L226 Difference]: Without dead ends: 113773 [2024-10-23 21:32:41,089 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 [2024-10-23 21:32:41,090 INFO L432 NwaCegarLoop]: 623 mSDtfsCounter, 445 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1231 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 1447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 1231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:41,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 656 Invalid, 1447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 1231 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-23 21:32:41,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113773 states.