./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c42bca5197a9d3789842b36ec154209e56c2a7008fcac4a7338bcb4050288a1 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 03:45:16,096 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 03:45:16,165 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 03:45:16,171 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 03:45:16,172 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 03:45:16,202 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 03:45:16,203 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 03:45:16,204 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 03:45:16,204 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 03:45:16,205 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 03:45:16,206 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 03:45:16,207 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 03:45:16,207 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 03:45:16,208 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 03:45:16,209 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 03:45:16,210 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 03:45:16,210 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 03:45:16,210 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 03:45:16,211 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 03:45:16,211 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 03:45:16,211 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 03:45:16,212 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 03:45:16,212 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 03:45:16,214 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 03:45:16,215 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 03:45:16,215 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 03:45:16,215 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 03:45:16,215 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 03:45:16,216 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 03:45:16,216 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 03:45:16,216 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 03:45:16,216 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 03:45:16,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:45:16,217 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 03:45:16,217 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 03:45:16,217 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 03:45:16,217 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 03:45:16,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 03:45:16,218 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 03:45:16,218 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 03:45:16,219 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 03:45:16,219 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 03:45:16,220 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c42bca5197a9d3789842b36ec154209e56c2a7008fcac4a7338bcb4050288a1 [2024-10-14 03:45:16,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 03:45:16,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 03:45:16,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 03:45:16,495 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 03:45:16,495 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 03:45:16,496 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-14 03:45:17,907 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 03:45:18,237 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 03:45:18,238 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-14 03:45:18,254 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0edf21ea7/39c1bb3bba3647dda1a0ce7e59e6d377/FLAGeeee5a770 [2024-10-14 03:45:18,489 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0edf21ea7/39c1bb3bba3647dda1a0ce7e59e6d377 [2024-10-14 03:45:18,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 03:45:18,506 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 03:45:18,508 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 03:45:18,508 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 03:45:18,515 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 03:45:18,517 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:45:18" (1/1) ... [2024-10-14 03:45:18,518 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49b6e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:18, skipping insertion in model container [2024-10-14 03:45:18,518 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:45:18" (1/1) ... [2024-10-14 03:45:18,595 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 03:45:19,028 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[24502,24515] [2024-10-14 03:45:19,165 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:45:19,193 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 03:45:19,415 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[24502,24515] [2024-10-14 03:45:19,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:45:19,531 INFO L204 MainTranslator]: Completed translation [2024-10-14 03:45:19,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:19 WrapperNode [2024-10-14 03:45:19,531 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 03:45:19,532 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 03:45:19,532 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 03:45:19,532 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 03:45:19,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:19" (1/1) ... [2024-10-14 03:45:19,575 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:19" (1/1) ... [2024-10-14 03:45:19,658 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2318 [2024-10-14 03:45:19,658 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 03:45:19,659 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 03:45:19,659 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 03:45:19,659 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 03:45:19,670 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:19" (1/1) ... [2024-10-14 03:45:19,671 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:19" (1/1) ... [2024-10-14 03:45:19,683 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:19" (1/1) ... [2024-10-14 03:45:19,718 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]. [2024-10-14 03:45:19,719 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:19" (1/1) ... [2024-10-14 03:45:19,719 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:19" (1/1) ... [2024-10-14 03:45:19,745 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:19" (1/1) ... [2024-10-14 03:45:19,758 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:19" (1/1) ... [2024-10-14 03:45:19,766 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:19" (1/1) ... [2024-10-14 03:45:19,775 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:19" (1/1) ... [2024-10-14 03:45:19,795 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 03:45:19,796 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 03:45:19,796 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 03:45:19,796 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 03:45:19,797 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:19" (1/1) ... [2024-10-14 03:45:19,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:45:19,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:45:19,837 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) [2024-10-14 03:45:19,844 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 [2024-10-14 03:45:19,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 03:45:19,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 03:45:19,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 03:45:19,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 03:45:20,064 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 03:45:20,066 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 03:45:21,818 INFO L? ?]: Removed 159 outVars from TransFormulas that were not future-live. [2024-10-14 03:45:21,819 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 03:45:21,894 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 03:45:21,894 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 03:45:21,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:45:21 BoogieIcfgContainer [2024-10-14 03:45:21,895 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 03:45:21,897 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 03:45:21,897 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 03:45:21,902 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 03:45:21,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:45:18" (1/3) ... [2024-10-14 03:45:21,903 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7697b42b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:45:21, skipping insertion in model container [2024-10-14 03:45:21,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:19" (2/3) ... [2024-10-14 03:45:21,903 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7697b42b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:45:21, skipping insertion in model container [2024-10-14 03:45:21,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:45:21" (3/3) ... [2024-10-14 03:45:21,906 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.2.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-14 03:45:21,922 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 03:45:21,923 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 03:45:22,010 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 03:45:22,019 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;@3ef98e73, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 03:45:22,019 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 03:45:22,029 INFO L276 IsEmpty]: Start isEmpty. Operand has 590 states, 588 states have (on average 1.7908163265306123) internal successors, (1053), 589 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:22,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-10-14 03:45:22,052 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:45:22,053 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:45:22,053 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:45:22,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:45:22,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1583194630, now seen corresponding path program 1 times [2024-10-14 03:45:22,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:45:22,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415910211] [2024-10-14 03:45:22,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:45:22,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:45:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:45:22,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:45:23,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:45:23,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415910211] [2024-10-14 03:45:23,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415910211] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:45:23,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:45:23,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:45:23,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863964558] [2024-10-14 03:45:23,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:45:23,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:45:23,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:45:23,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:45:23,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:45:23,043 INFO L87 Difference]: Start difference. First operand has 590 states, 588 states have (on average 1.7908163265306123) internal successors, (1053), 589 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:23,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:45:23,331 INFO L93 Difference]: Finished difference Result 1080 states and 1913 transitions. [2024-10-14 03:45:23,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:45:23,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 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 237 [2024-10-14 03:45:23,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:45:23,361 INFO L225 Difference]: With dead ends: 1080 [2024-10-14 03:45:23,362 INFO L226 Difference]: Without dead ends: 900 [2024-10-14 03:45:23,367 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 [2024-10-14 03:45:23,372 INFO L432 NwaCegarLoop]: 1003 mSDtfsCounter, 592 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 1825 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:45:23,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 1825 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:45:23,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2024-10-14 03:45:23,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 898. [2024-10-14 03:45:23,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 897 states have (on average 1.5707915273132664) internal successors, (1409), 897 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:23,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1409 transitions. [2024-10-14 03:45:23,480 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1409 transitions. Word has length 237 [2024-10-14 03:45:23,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:45:23,481 INFO L471 AbstractCegarLoop]: Abstraction has 898 states and 1409 transitions. [2024-10-14 03:45:23,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:23,482 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1409 transitions. [2024-10-14 03:45:23,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-10-14 03:45:23,494 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:45:23,495 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:45:23,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 03:45:23,495 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:45:23,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:45:23,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1073961202, now seen corresponding path program 1 times [2024-10-14 03:45:23,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:45:23,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365873753] [2024-10-14 03:45:23,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:45:23,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:45:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:45:24,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:45:24,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:45:24,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365873753] [2024-10-14 03:45:24,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365873753] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:45:24,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:45:24,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:45:24,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766839039] [2024-10-14 03:45:24,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:45:24,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 03:45:24,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:45:24,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 03:45:24,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:45:24,614 INFO L87 Difference]: Start difference. First operand 898 states and 1409 transitions. Second operand has 4 states, 4 states have (on average 59.25) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:24,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:45:24,841 INFO L93 Difference]: Finished difference Result 3468 states and 5420 transitions. [2024-10-14 03:45:24,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 03:45:24,842 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.25) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 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 237 [2024-10-14 03:45:24,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:45:24,856 INFO L225 Difference]: With dead ends: 3468 [2024-10-14 03:45:24,856 INFO L226 Difference]: Without dead ends: 2616 [2024-10-14 03:45:24,863 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 [2024-10-14 03:45:24,864 INFO L432 NwaCegarLoop]: 1477 mSDtfsCounter, 1681 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1681 SdHoareTripleChecker+Valid, 3195 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:45:24,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1681 Valid, 3195 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:45:24,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2616 states. [2024-10-14 03:45:24,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2616 to 1760. [2024-10-14 03:45:24,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1760 states, 1759 states have (on average 1.5605457646389995) internal successors, (2745), 1759 states have internal predecessors, (2745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:24,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1760 states to 1760 states and 2745 transitions. [2024-10-14 03:45:24,924 INFO L78 Accepts]: Start accepts. Automaton has 1760 states and 2745 transitions. Word has length 237 [2024-10-14 03:45:24,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:45:24,926 INFO L471 AbstractCegarLoop]: Abstraction has 1760 states and 2745 transitions. [2024-10-14 03:45:24,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.25) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:24,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states and 2745 transitions. [2024-10-14 03:45:24,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-10-14 03:45:24,934 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:45:24,934 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:45:24,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 03:45:24,935 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:45:24,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:45:24,940 INFO L85 PathProgramCache]: Analyzing trace with hash -706549838, now seen corresponding path program 1 times [2024-10-14 03:45:24,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:45:24,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131197241] [2024-10-14 03:45:24,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:45:24,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:45:25,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:45:25,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:45:25,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:45:25,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131197241] [2024-10-14 03:45:25,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131197241] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:45:25,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:45:25,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:45:25,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521556620] [2024-10-14 03:45:25,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:45:25,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:45:25,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:45:25,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:45:25,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:45:25,179 INFO L87 Difference]: Start difference. First operand 1760 states and 2745 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:25,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:45:25,282 INFO L93 Difference]: Finished difference Result 5095 states and 7910 transitions. [2024-10-14 03:45:25,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:45:25,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 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 239 [2024-10-14 03:45:25,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:45:25,296 INFO L225 Difference]: With dead ends: 5095 [2024-10-14 03:45:25,297 INFO L226 Difference]: Without dead ends: 3459 [2024-10-14 03:45:25,300 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 [2024-10-14 03:45:25,301 INFO L432 NwaCegarLoop]: 1732 mSDtfsCounter, 790 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 2610 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:45:25,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 2610 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:45:25,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3459 states. [2024-10-14 03:45:25,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3459 to 3457. [2024-10-14 03:45:25,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3457 states, 3456 states have (on average 1.5512152777777777) internal successors, (5361), 3456 states have internal predecessors, (5361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:25,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3457 states to 3457 states and 5361 transitions. [2024-10-14 03:45:25,411 INFO L78 Accepts]: Start accepts. Automaton has 3457 states and 5361 transitions. Word has length 239 [2024-10-14 03:45:25,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:45:25,412 INFO L471 AbstractCegarLoop]: Abstraction has 3457 states and 5361 transitions. [2024-10-14 03:45:25,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:25,412 INFO L276 IsEmpty]: Start isEmpty. Operand 3457 states and 5361 transitions. [2024-10-14 03:45:25,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-10-14 03:45:25,418 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:45:25,419 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:45:25,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 03:45:25,419 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:45:25,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:45:25,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1372922487, now seen corresponding path program 1 times [2024-10-14 03:45:25,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:45:25,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22406410] [2024-10-14 03:45:25,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:45:25,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:45:25,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:45:25,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:45:25,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:45:25,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22406410] [2024-10-14 03:45:25,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22406410] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:45:25,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:45:25,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:45:25,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108837229] [2024-10-14 03:45:25,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:45:25,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:45:25,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:45:25,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:45:25,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:45:25,569 INFO L87 Difference]: Start difference. First operand 3457 states and 5361 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:25,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:45:25,649 INFO L93 Difference]: Finished difference Result 10306 states and 15964 transitions. [2024-10-14 03:45:25,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:45:25,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 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 239 [2024-10-14 03:45:25,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:45:25,676 INFO L225 Difference]: With dead ends: 10306 [2024-10-14 03:45:25,676 INFO L226 Difference]: Without dead ends: 6886 [2024-10-14 03:45:25,683 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 [2024-10-14 03:45:25,685 INFO L432 NwaCegarLoop]: 1820 mSDtfsCounter, 908 mSDsluCounter, 908 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 2728 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:45:25,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [908 Valid, 2728 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:45:25,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6886 states. [2024-10-14 03:45:25,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6886 to 3476. [2024-10-14 03:45:25,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3476 states, 3475 states have (on average 1.5510791366906476) internal successors, (5390), 3475 states have internal predecessors, (5390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:25,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3476 states to 3476 states and 5390 transitions. [2024-10-14 03:45:25,792 INFO L78 Accepts]: Start accepts. Automaton has 3476 states and 5390 transitions. Word has length 239 [2024-10-14 03:45:25,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:45:25,792 INFO L471 AbstractCegarLoop]: Abstraction has 3476 states and 5390 transitions. [2024-10-14 03:45:25,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:25,793 INFO L276 IsEmpty]: Start isEmpty. Operand 3476 states and 5390 transitions. [2024-10-14 03:45:25,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-10-14 03:45:25,799 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:45:25,799 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:45:25,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 03:45:25,799 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:45:25,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:45:25,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1138250706, now seen corresponding path program 1 times [2024-10-14 03:45:25,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:45:25,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591138123] [2024-10-14 03:45:25,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:45:25,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:45:25,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:45:25,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:45:25,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:45:25,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591138123] [2024-10-14 03:45:25,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591138123] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:45:25,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:45:25,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:45:25,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040375589] [2024-10-14 03:45:25,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:45:25,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:45:25,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:45:25,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:45:25,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:45:25,971 INFO L87 Difference]: Start difference. First operand 3476 states and 5390 transitions. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:26,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:45:26,034 INFO L93 Difference]: Finished difference Result 6915 states and 10711 transitions. [2024-10-14 03:45:26,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:45:26,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 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 240 [2024-10-14 03:45:26,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:45:26,047 INFO L225 Difference]: With dead ends: 6915 [2024-10-14 03:45:26,047 INFO L226 Difference]: Without dead ends: 3494 [2024-10-14 03:45:26,053 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 [2024-10-14 03:45:26,054 INFO L432 NwaCegarLoop]: 930 mSDtfsCounter, 5 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1846 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:45:26,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1846 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:45:26,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3494 states. [2024-10-14 03:45:26,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3494 to 3494. [2024-10-14 03:45:26,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3494 states, 3493 states have (on average 1.5490981963927857) internal successors, (5411), 3493 states have internal predecessors, (5411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:26,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 5411 transitions. [2024-10-14 03:45:26,138 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 5411 transitions. Word has length 240 [2024-10-14 03:45:26,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:45:26,138 INFO L471 AbstractCegarLoop]: Abstraction has 3494 states and 5411 transitions. [2024-10-14 03:45:26,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:26,139 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 5411 transitions. [2024-10-14 03:45:26,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2024-10-14 03:45:26,145 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:45:26,145 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:45:26,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 03:45:26,145 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:45:26,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:45:26,146 INFO L85 PathProgramCache]: Analyzing trace with hash 893369293, now seen corresponding path program 1 times [2024-10-14 03:45:26,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:45:26,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842731687] [2024-10-14 03:45:26,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:45:26,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:45:26,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:45:26,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:45:26,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:45:26,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842731687] [2024-10-14 03:45:26,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842731687] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:45:26,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:45:26,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:45:26,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389924775] [2024-10-14 03:45:26,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:45:26,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:45:26,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:45:26,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:45:26,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:45:26,368 INFO L87 Difference]: Start difference. First operand 3494 states and 5411 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:26,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:45:26,494 INFO L93 Difference]: Finished difference Result 10025 states and 15453 transitions. [2024-10-14 03:45:26,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:45:26,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 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 241 [2024-10-14 03:45:26,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:45:26,520 INFO L225 Difference]: With dead ends: 10025 [2024-10-14 03:45:26,521 INFO L226 Difference]: Without dead ends: 6771 [2024-10-14 03:45:26,527 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 [2024-10-14 03:45:26,529 INFO L432 NwaCegarLoop]: 1792 mSDtfsCounter, 783 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 2670 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:45:26,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 2670 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:45:26,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6771 states. [2024-10-14 03:45:26,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6771 to 6769. [2024-10-14 03:45:26,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6769 states, 6768 states have (on average 1.5372340425531914) internal successors, (10404), 6768 states have internal predecessors, (10404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:26,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6769 states to 6769 states and 10404 transitions. [2024-10-14 03:45:26,694 INFO L78 Accepts]: Start accepts. Automaton has 6769 states and 10404 transitions. Word has length 241 [2024-10-14 03:45:26,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:45:26,695 INFO L471 AbstractCegarLoop]: Abstraction has 6769 states and 10404 transitions. [2024-10-14 03:45:26,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:26,699 INFO L276 IsEmpty]: Start isEmpty. Operand 6769 states and 10404 transitions. [2024-10-14 03:45:26,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2024-10-14 03:45:26,710 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:45:26,711 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:45:26,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 03:45:26,711 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:45:26,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:45:26,712 INFO L85 PathProgramCache]: Analyzing trace with hash 540458986, now seen corresponding path program 1 times [2024-10-14 03:45:26,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:45:26,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629836804] [2024-10-14 03:45:26,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:45:26,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:45:26,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:45:27,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:45:27,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:45:27,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629836804] [2024-10-14 03:45:27,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629836804] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:45:27,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:45:27,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:45:27,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147054452] [2024-10-14 03:45:27,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:45:27,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 03:45:27,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:45:27,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 03:45:27,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:45:27,644 INFO L87 Difference]: Start difference. First operand 6769 states and 10404 transitions. Second operand has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:27,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:45:27,774 INFO L93 Difference]: Finished difference Result 19376 states and 29579 transitions. [2024-10-14 03:45:27,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 03:45:27,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 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 241 [2024-10-14 03:45:27,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:45:27,808 INFO L225 Difference]: With dead ends: 19376 [2024-10-14 03:45:27,809 INFO L226 Difference]: Without dead ends: 13142 [2024-10-14 03:45:27,823 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 [2024-10-14 03:45:27,824 INFO L432 NwaCegarLoop]: 1467 mSDtfsCounter, 877 mSDsluCounter, 2376 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 3843 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:45:27,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 3843 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:45:27,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13142 states. [2024-10-14 03:45:28,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13142 to 7004. [2024-10-14 03:45:28,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7004 states, 7003 states have (on average 1.5411966300157076) internal successors, (10793), 7003 states have internal predecessors, (10793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:28,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7004 states to 7004 states and 10793 transitions. [2024-10-14 03:45:28,056 INFO L78 Accepts]: Start accepts. Automaton has 7004 states and 10793 transitions. Word has length 241 [2024-10-14 03:45:28,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:45:28,057 INFO L471 AbstractCegarLoop]: Abstraction has 7004 states and 10793 transitions. [2024-10-14 03:45:28,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:28,057 INFO L276 IsEmpty]: Start isEmpty. Operand 7004 states and 10793 transitions. [2024-10-14 03:45:28,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2024-10-14 03:45:28,069 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:45:28,070 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:45:28,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 03:45:28,070 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:45:28,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:45:28,071 INFO L85 PathProgramCache]: Analyzing trace with hash -148560053, now seen corresponding path program 1 times [2024-10-14 03:45:28,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:45:28,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738849774] [2024-10-14 03:45:28,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:45:28,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:45:28,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:45:28,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:45:28,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:45:28,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738849774] [2024-10-14 03:45:28,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738849774] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:45:28,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:45:28,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:45:28,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121076518] [2024-10-14 03:45:28,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:45:28,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:45:28,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:45:28,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:45:28,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:45:28,252 INFO L87 Difference]: Start difference. First operand 7004 states and 10793 transitions. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:28,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:45:28,368 INFO L93 Difference]: Finished difference Result 19452 states and 29658 transitions. [2024-10-14 03:45:28,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:45:28,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2024-10-14 03:45:28,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:45:28,399 INFO L225 Difference]: With dead ends: 19452 [2024-10-14 03:45:28,399 INFO L226 Difference]: Without dead ends: 13246 [2024-10-14 03:45:28,412 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 [2024-10-14 03:45:28,413 INFO L432 NwaCegarLoop]: 1688 mSDtfsCounter, 776 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 2595 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:45:28,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 2595 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:45:28,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13246 states. [2024-10-14 03:45:28,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13246 to 7108. [2024-10-14 03:45:28,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7108 states, 7107 states have (on average 1.5387645982833826) internal successors, (10936), 7107 states have internal predecessors, (10936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:28,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7108 states to 7108 states and 10936 transitions. [2024-10-14 03:45:28,625 INFO L78 Accepts]: Start accepts. Automaton has 7108 states and 10936 transitions. Word has length 243 [2024-10-14 03:45:28,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:45:28,625 INFO L471 AbstractCegarLoop]: Abstraction has 7108 states and 10936 transitions. [2024-10-14 03:45:28,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:28,626 INFO L276 IsEmpty]: Start isEmpty. Operand 7108 states and 10936 transitions. [2024-10-14 03:45:28,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2024-10-14 03:45:28,636 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:45:28,637 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:45:28,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 03:45:28,637 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:45:28,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:45:28,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1666122010, now seen corresponding path program 1 times [2024-10-14 03:45:28,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:45:28,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261905719] [2024-10-14 03:45:28,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:45:28,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:45:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:45:28,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:45:28,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:45:28,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261905719] [2024-10-14 03:45:28,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261905719] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:45:28,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:45:28,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:45:28,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026039673] [2024-10-14 03:45:28,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:45:28,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:45:28,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:45:28,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:45:28,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:45:28,765 INFO L87 Difference]: Start difference. First operand 7108 states and 10936 transitions. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:28,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:45:28,890 INFO L93 Difference]: Finished difference Result 13446 states and 20531 transitions. [2024-10-14 03:45:28,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:45:28,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 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 244 [2024-10-14 03:45:28,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:45:28,903 INFO L225 Difference]: With dead ends: 13446 [2024-10-14 03:45:28,903 INFO L226 Difference]: Without dead ends: 7233 [2024-10-14 03:45:28,911 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 [2024-10-14 03:45:28,911 INFO L432 NwaCegarLoop]: 930 mSDtfsCounter, 5 mSDsluCounter, 915 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1845 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:45:28,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1845 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:45:28,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7233 states. [2024-10-14 03:45:29,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7233 to 7233. [2024-10-14 03:45:29,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7233 states, 7232 states have (on average 1.5323561946902655) internal successors, (11082), 7232 states have internal predecessors, (11082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:29,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7233 states to 7233 states and 11082 transitions. [2024-10-14 03:45:29,034 INFO L78 Accepts]: Start accepts. Automaton has 7233 states and 11082 transitions. Word has length 244 [2024-10-14 03:45:29,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:45:29,034 INFO L471 AbstractCegarLoop]: Abstraction has 7233 states and 11082 transitions. [2024-10-14 03:45:29,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:29,035 INFO L276 IsEmpty]: Start isEmpty. Operand 7233 states and 11082 transitions. [2024-10-14 03:45:29,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2024-10-14 03:45:29,045 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:45:29,046 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:45:29,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 03:45:29,046 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:45:29,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:45:29,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1329146434, now seen corresponding path program 1 times [2024-10-14 03:45:29,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:45:29,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252693492] [2024-10-14 03:45:29,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:45:29,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:45:29,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:45:29,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:45:29,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:45:29,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252693492] [2024-10-14 03:45:29,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252693492] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:45:29,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:45:29,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:45:29,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490328255] [2024-10-14 03:45:29,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:45:29,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:45:29,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:45:29,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:45:29,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:45:29,755 INFO L87 Difference]: Start difference. First operand 7233 states and 11082 transitions. Second operand has 5 states, 5 states have (on average 49.0) internal successors, (245), 4 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:30,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:45:30,096 INFO L93 Difference]: Finished difference Result 34945 states and 53388 transitions. [2024-10-14 03:45:30,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:45:30,098 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 49.0) internal successors, (245), 4 states have internal predecessors, (245), 0 states have call successors, (0), 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 245 [2024-10-14 03:45:30,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:45:30,161 INFO L225 Difference]: With dead ends: 34945 [2024-10-14 03:45:30,161 INFO L226 Difference]: Without dead ends: 27779 [2024-10-14 03:45:30,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:45:30,185 INFO L432 NwaCegarLoop]: 1959 mSDtfsCounter, 3065 mSDsluCounter, 3448 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3065 SdHoareTripleChecker+Valid, 5407 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:45:30,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3065 Valid, 5407 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:45:30,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27779 states. [2024-10-14 03:45:30,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27779 to 13942. [2024-10-14 03:45:30,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13942 states, 13941 states have (on average 1.5178251201492001) internal successors, (21160), 13941 states have internal predecessors, (21160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:30,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13942 states to 13942 states and 21160 transitions. [2024-10-14 03:45:30,669 INFO L78 Accepts]: Start accepts. Automaton has 13942 states and 21160 transitions. Word has length 245 [2024-10-14 03:45:30,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:45:30,670 INFO L471 AbstractCegarLoop]: Abstraction has 13942 states and 21160 transitions. [2024-10-14 03:45:30,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 49.0) internal successors, (245), 4 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:30,670 INFO L276 IsEmpty]: Start isEmpty. Operand 13942 states and 21160 transitions. [2024-10-14 03:45:30,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-10-14 03:45:30,689 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:45:30,689 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:45:30,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 03:45:30,689 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:45:30,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:45:30,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1225631628, now seen corresponding path program 1 times [2024-10-14 03:45:30,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:45:30,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028206891] [2024-10-14 03:45:30,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:45:30,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:45:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:45:31,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:45:31,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:45:31,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028206891] [2024-10-14 03:45:31,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028206891] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:45:31,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:45:31,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:45:31,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607105064] [2024-10-14 03:45:31,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:45:31,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 03:45:31,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:45:31,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 03:45:31,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:45:31,439 INFO L87 Difference]: Start difference. First operand 13942 states and 21160 transitions. Second operand has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:31,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:45:31,590 INFO L93 Difference]: Finished difference Result 39961 states and 60420 transitions. [2024-10-14 03:45:31,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 03:45:31,590 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 247 [2024-10-14 03:45:31,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:45:31,646 INFO L225 Difference]: With dead ends: 39961 [2024-10-14 03:45:31,647 INFO L226 Difference]: Without dead ends: 27301 [2024-10-14 03:45:31,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:45:31,668 INFO L432 NwaCegarLoop]: 1808 mSDtfsCounter, 866 mSDsluCounter, 2717 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 4525 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:45:31,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 4525 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:45:31,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27301 states. [2024-10-14 03:45:31,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27301 to 14711. [2024-10-14 03:45:32,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14711 states, 14710 states have (on average 1.527668252889191) internal successors, (22472), 14710 states have internal predecessors, (22472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:32,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14711 states to 14711 states and 22472 transitions. [2024-10-14 03:45:32,049 INFO L78 Accepts]: Start accepts. Automaton has 14711 states and 22472 transitions. Word has length 247 [2024-10-14 03:45:32,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:45:32,050 INFO L471 AbstractCegarLoop]: Abstraction has 14711 states and 22472 transitions. [2024-10-14 03:45:32,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:32,050 INFO L276 IsEmpty]: Start isEmpty. Operand 14711 states and 22472 transitions. [2024-10-14 03:45:32,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-10-14 03:45:32,071 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:45:32,072 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:45:32,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 03:45:32,072 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:45:32,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:45:32,073 INFO L85 PathProgramCache]: Analyzing trace with hash -15613014, now seen corresponding path program 1 times [2024-10-14 03:45:32,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:45:32,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998291344] [2024-10-14 03:45:32,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:45:32,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:45:32,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:45:32,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:45:32,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:45:32,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998291344] [2024-10-14 03:45:32,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998291344] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:45:32,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:45:32,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:45:32,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456060117] [2024-10-14 03:45:32,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:45:32,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:45:32,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:45:32,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:45:32,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:45:32,299 INFO L87 Difference]: Start difference. First operand 14711 states and 22472 transitions. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:32,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:45:32,486 INFO L93 Difference]: Finished difference Result 41461 states and 62878 transitions. [2024-10-14 03:45:32,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:45:32,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 247 [2024-10-14 03:45:32,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:45:32,554 INFO L225 Difference]: With dead ends: 41461 [2024-10-14 03:45:32,554 INFO L226 Difference]: Without dead ends: 28211 [2024-10-14 03:45:32,579 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 [2024-10-14 03:45:32,579 INFO L432 NwaCegarLoop]: 1778 mSDtfsCounter, 766 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 2656 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:45:32,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 2656 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:45:32,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28211 states. [2024-10-14 03:45:33,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28211 to 28209. [2024-10-14 03:45:33,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28209 states, 28208 states have (on average 1.513116846284742) internal successors, (42682), 28208 states have internal predecessors, (42682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:33,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28209 states to 28209 states and 42682 transitions. [2024-10-14 03:45:33,310 INFO L78 Accepts]: Start accepts. Automaton has 28209 states and 42682 transitions. Word has length 247 [2024-10-14 03:45:33,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:45:33,436 INFO L471 AbstractCegarLoop]: Abstraction has 28209 states and 42682 transitions. [2024-10-14 03:45:33,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:33,437 INFO L276 IsEmpty]: Start isEmpty. Operand 28209 states and 42682 transitions. [2024-10-14 03:45:33,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-10-14 03:45:33,486 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:45:33,487 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:45:33,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 03:45:33,487 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:45:33,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:45:33,488 INFO L85 PathProgramCache]: Analyzing trace with hash -120996956, now seen corresponding path program 1 times [2024-10-14 03:45:33,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:45:33,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075142817] [2024-10-14 03:45:33,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:45:33,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:45:33,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:45:33,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:45:33,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:45:33,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075142817] [2024-10-14 03:45:33,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075142817] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:45:33,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:45:33,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:45:33,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889173382] [2024-10-14 03:45:33,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:45:33,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:45:33,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:45:33,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:45:33,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:45:33,689 INFO L87 Difference]: Start difference. First operand 28209 states and 42682 transitions. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:33,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:45:33,997 INFO L93 Difference]: Finished difference Result 77491 states and 116005 transitions. [2024-10-14 03:45:33,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:45:33,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 247 [2024-10-14 03:45:33,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:45:34,127 INFO L225 Difference]: With dead ends: 77491 [2024-10-14 03:45:34,127 INFO L226 Difference]: Without dead ends: 53193 [2024-10-14 03:45:34,170 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 [2024-10-14 03:45:34,171 INFO L432 NwaCegarLoop]: 1770 mSDtfsCounter, 778 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 2648 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:45:34,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 2648 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:45:34,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53193 states. [2024-10-14 03:45:35,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53193 to 53191. [2024-10-14 03:45:35,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53191 states, 53190 states have (on average 1.4924797894341042) internal successors, (79385), 53190 states have internal predecessors, (79385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:35,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53191 states to 53191 states and 79385 transitions. [2024-10-14 03:45:35,762 INFO L78 Accepts]: Start accepts. Automaton has 53191 states and 79385 transitions. Word has length 247 [2024-10-14 03:45:35,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:45:35,763 INFO L471 AbstractCegarLoop]: Abstraction has 53191 states and 79385 transitions. [2024-10-14 03:45:35,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:35,763 INFO L276 IsEmpty]: Start isEmpty. Operand 53191 states and 79385 transitions. [2024-10-14 03:45:35,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-10-14 03:45:35,856 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:45:35,856 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:45:35,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 03:45:35,857 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:45:35,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:45:35,858 INFO L85 PathProgramCache]: Analyzing trace with hash 492786834, now seen corresponding path program 1 times [2024-10-14 03:45:35,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:45:35,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340584625] [2024-10-14 03:45:35,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:45:35,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:45:35,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:45:36,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:45:36,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:45:36,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340584625] [2024-10-14 03:45:36,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340584625] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:45:36,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:45:36,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:45:36,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075953643] [2024-10-14 03:45:36,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:45:36,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 03:45:36,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:45:36,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 03:45:36,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:45:36,660 INFO L87 Difference]: Start difference. First operand 53191 states and 79385 transitions. Second operand has 4 states, 4 states have (on average 62.25) internal successors, (249), 4 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:37,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:45:37,000 INFO L93 Difference]: Finished difference Result 93128 states and 138474 transitions. [2024-10-14 03:45:37,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 03:45:37,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 4 states have internal predecessors, (249), 0 states have call successors, (0), 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 249 [2024-10-14 03:45:37,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:45:37,135 INFO L225 Difference]: With dead ends: 93128 [2024-10-14 03:45:37,135 INFO L226 Difference]: Without dead ends: 45646 [2024-10-14 03:45:37,361 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 [2024-10-14 03:45:37,362 INFO L432 NwaCegarLoop]: 1044 mSDtfsCounter, 85 mSDsluCounter, 1958 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 3002 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:45:37,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 3002 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:45:37,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45646 states. [2024-10-14 03:45:37,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45646 to 45038. [2024-10-14 03:45:38,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45038 states, 45037 states have (on average 1.4923285298754358) internal successors, (67210), 45037 states have internal predecessors, (67210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:38,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45038 states to 45038 states and 67210 transitions. [2024-10-14 03:45:38,098 INFO L78 Accepts]: Start accepts. Automaton has 45038 states and 67210 transitions. Word has length 249 [2024-10-14 03:45:38,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:45:38,098 INFO L471 AbstractCegarLoop]: Abstraction has 45038 states and 67210 transitions. [2024-10-14 03:45:38,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 4 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:38,098 INFO L276 IsEmpty]: Start isEmpty. Operand 45038 states and 67210 transitions. [2024-10-14 03:45:38,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-10-14 03:45:38,138 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:45:38,139 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:45:38,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 03:45:38,139 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:45:38,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:45:38,140 INFO L85 PathProgramCache]: Analyzing trace with hash -731371240, now seen corresponding path program 1 times [2024-10-14 03:45:38,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:45:38,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593646683] [2024-10-14 03:45:38,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:45:38,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:45:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:45:38,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:45:38,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:45:38,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593646683] [2024-10-14 03:45:38,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593646683] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:45:38,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:45:38,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:45:38,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849080947] [2024-10-14 03:45:38,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:45:38,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:45:38,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:45:38,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:45:38,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:45:38,520 INFO L87 Difference]: Start difference. First operand 45038 states and 67210 transitions. Second operand has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:39,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:45:39,244 INFO L93 Difference]: Finished difference Result 107731 states and 160833 transitions. [2024-10-14 03:45:39,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:45:39,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 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 253 [2024-10-14 03:45:39,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:45:39,343 INFO L225 Difference]: With dead ends: 107731 [2024-10-14 03:45:39,343 INFO L226 Difference]: Without dead ends: 76147 [2024-10-14 03:45:39,394 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 [2024-10-14 03:45:39,395 INFO L432 NwaCegarLoop]: 804 mSDtfsCounter, 515 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 03:45:39,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 1515 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 03:45:39,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76147 states. [2024-10-14 03:45:40,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76147 to 76145. [2024-10-14 03:45:40,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76145 states, 76144 states have (on average 1.4852122294599706) internal successors, (113090), 76144 states have internal predecessors, (113090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:40,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76145 states to 76145 states and 113090 transitions. [2024-10-14 03:45:40,793 INFO L78 Accepts]: Start accepts. Automaton has 76145 states and 113090 transitions. Word has length 253 [2024-10-14 03:45:40,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:45:40,793 INFO L471 AbstractCegarLoop]: Abstraction has 76145 states and 113090 transitions. [2024-10-14 03:45:40,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:40,793 INFO L276 IsEmpty]: Start isEmpty. Operand 76145 states and 113090 transitions. [2024-10-14 03:45:40,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-10-14 03:45:40,858 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:45:40,858 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:45:40,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 03:45:40,858 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:45:40,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:45:40,859 INFO L85 PathProgramCache]: Analyzing trace with hash -879897837, now seen corresponding path program 1 times [2024-10-14 03:45:40,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:45:40,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133704431] [2024-10-14 03:45:40,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:45:40,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:45:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:45:41,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:45:41,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:45:41,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133704431] [2024-10-14 03:45:41,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133704431] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:45:41,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:45:41,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:45:41,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938273141] [2024-10-14 03:45:41,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:45:41,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 03:45:41,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:45:41,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 03:45:41,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:45:41,773 INFO L87 Difference]: Start difference. First operand 76145 states and 113090 transitions. Second operand has 4 states, 4 states have (on average 63.25) internal successors, (253), 4 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:42,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:45:42,346 INFO L93 Difference]: Finished difference Result 139595 states and 206648 transitions. [2024-10-14 03:45:42,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 03:45:42,347 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 63.25) internal successors, (253), 4 states have internal predecessors, (253), 0 states have call successors, (0), 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 253 [2024-10-14 03:45:42,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:45:42,420 INFO L225 Difference]: With dead ends: 139595 [2024-10-14 03:45:42,420 INFO L226 Difference]: Without dead ends: 68201 [2024-10-14 03:45:42,435 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 [2024-10-14 03:45:42,436 INFO L432 NwaCegarLoop]: 1053 mSDtfsCounter, 97 mSDsluCounter, 1965 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 3018 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:45:42,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 3018 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:45:42,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68201 states. [2024-10-14 03:45:43,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68201 to 67907. [2024-10-14 03:45:43,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67907 states, 67906 states have (on average 1.4849497835242835) internal successors, (100837), 67906 states have internal predecessors, (100837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:43,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67907 states to 67907 states and 100837 transitions. [2024-10-14 03:45:43,443 INFO L78 Accepts]: Start accepts. Automaton has 67907 states and 100837 transitions. Word has length 253 [2024-10-14 03:45:43,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:45:43,443 INFO L471 AbstractCegarLoop]: Abstraction has 67907 states and 100837 transitions. [2024-10-14 03:45:43,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.25) internal successors, (253), 4 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:43,444 INFO L276 IsEmpty]: Start isEmpty. Operand 67907 states and 100837 transitions. [2024-10-14 03:45:43,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-10-14 03:45:43,497 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:45:43,498 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:45:43,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 03:45:43,498 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:45:43,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:45:43,499 INFO L85 PathProgramCache]: Analyzing trace with hash -471170134, now seen corresponding path program 1 times [2024-10-14 03:45:43,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:45:43,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172997501] [2024-10-14 03:45:43,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:45:43,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:45:43,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:45:45,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:45:45,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:45:45,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172997501] [2024-10-14 03:45:45,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172997501] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:45:45,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:45:45,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-14 03:45:45,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56160176] [2024-10-14 03:45:45,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:45:45,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 03:45:45,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:45:45,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 03:45:45,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2024-10-14 03:45:45,544 INFO L87 Difference]: Start difference. First operand 67907 states and 100837 transitions. Second operand has 16 states, 16 states have (on average 15.8125) internal successors, (253), 15 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:47,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:45:47,754 INFO L93 Difference]: Finished difference Result 120315 states and 180902 transitions. [2024-10-14 03:45:47,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-14 03:45:47,754 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.8125) internal successors, (253), 15 states have internal predecessors, (253), 0 states have call successors, (0), 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 253 [2024-10-14 03:45:47,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:45:47,897 INFO L225 Difference]: With dead ends: 120315 [2024-10-14 03:45:47,897 INFO L226 Difference]: Without dead ends: 104177 [2024-10-14 03:45:47,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=243, Invalid=813, Unknown=0, NotChecked=0, Total=1056 [2024-10-14 03:45:47,939 INFO L432 NwaCegarLoop]: 1200 mSDtfsCounter, 7157 mSDsluCounter, 12082 mSDsCounter, 0 mSdLazyCounter, 1839 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7157 SdHoareTripleChecker+Valid, 13282 SdHoareTripleChecker+Invalid, 1926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-14 03:45:47,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7157 Valid, 13282 Invalid, 1926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1839 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-14 03:45:48,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104177 states. [2024-10-14 03:45:48,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104177 to 74051. [2024-10-14 03:45:48,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74051 states, 74050 states have (on average 1.4743146522619852) internal successors, (109173), 74050 states have internal predecessors, (109173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:49,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74051 states to 74051 states and 109173 transitions. [2024-10-14 03:45:49,464 INFO L78 Accepts]: Start accepts. Automaton has 74051 states and 109173 transitions. Word has length 253 [2024-10-14 03:45:49,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:45:49,465 INFO L471 AbstractCegarLoop]: Abstraction has 74051 states and 109173 transitions. [2024-10-14 03:45:49,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.8125) internal successors, (253), 15 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:49,466 INFO L276 IsEmpty]: Start isEmpty. Operand 74051 states and 109173 transitions. [2024-10-14 03:45:49,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-10-14 03:45:49,557 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:45:49,558 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:45:49,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 03:45:49,558 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:45:49,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:45:49,559 INFO L85 PathProgramCache]: Analyzing trace with hash 731003256, now seen corresponding path program 1 times [2024-10-14 03:45:49,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:45:49,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521660270] [2024-10-14 03:45:49,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:45:49,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:45:49,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:45:50,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:45:50,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:45:50,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521660270] [2024-10-14 03:45:50,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521660270] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:45:50,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:45:50,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:45:50,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144199196] [2024-10-14 03:45:50,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:45:50,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 03:45:50,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:45:50,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 03:45:50,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:45:50,271 INFO L87 Difference]: Start difference. First operand 74051 states and 109173 transitions. Second operand has 4 states, 4 states have (on average 63.25) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:51,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:45:51,438 INFO L93 Difference]: Finished difference Result 210876 states and 310518 transitions. [2024-10-14 03:45:51,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:45:51,439 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 63.25) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 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 253 [2024-10-14 03:45:51,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:45:51,667 INFO L225 Difference]: With dead ends: 210876 [2024-10-14 03:45:51,667 INFO L226 Difference]: Without dead ends: 137038 [2024-10-14 03:45:51,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:45:51,705 INFO L432 NwaCegarLoop]: 1476 mSDtfsCounter, 805 mSDsluCounter, 2299 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 3775 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:45:51,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 3775 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:45:51,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137038 states. [2024-10-14 03:45:53,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137038 to 137036. [2024-10-14 03:45:53,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137036 states, 137035 states have (on average 1.4625241726566205) internal successors, (200417), 137035 states have internal predecessors, (200417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:54,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137036 states to 137036 states and 200417 transitions. [2024-10-14 03:45:54,139 INFO L78 Accepts]: Start accepts. Automaton has 137036 states and 200417 transitions. Word has length 253 [2024-10-14 03:45:54,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:45:54,140 INFO L471 AbstractCegarLoop]: Abstraction has 137036 states and 200417 transitions. [2024-10-14 03:45:54,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.25) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:54,140 INFO L276 IsEmpty]: Start isEmpty. Operand 137036 states and 200417 transitions. [2024-10-14 03:45:54,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-10-14 03:45:54,232 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:45:54,232 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:45:54,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 03:45:54,233 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:45:54,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:45:54,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1341260466, now seen corresponding path program 1 times [2024-10-14 03:45:54,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:45:54,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040367465] [2024-10-14 03:45:54,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:45:54,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:45:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:45:54,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:45:54,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:45:54,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040367465] [2024-10-14 03:45:54,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040367465] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:45:54,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:45:54,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:45:54,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438987708] [2024-10-14 03:45:54,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:45:54,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:45:54,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:45:54,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:45:54,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:45:54,389 INFO L87 Difference]: Start difference. First operand 137036 states and 200417 transitions. Second operand has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:45:56,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:45:56,431 INFO L93 Difference]: Finished difference Result 400437 states and 583846 transitions. [2024-10-14 03:45:56,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:45:56,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 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 255 [2024-10-14 03:45:56,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:45:56,823 INFO L225 Difference]: With dead ends: 400437 [2024-10-14 03:45:56,823 INFO L226 Difference]: Without dead ends: 267820 [2024-10-14 03:45:56,912 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 [2024-10-14 03:45:56,914 INFO L432 NwaCegarLoop]: 1738 mSDtfsCounter, 765 mSDsluCounter, 874 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 2612 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:45:56,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 2612 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:45:57,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267820 states. [2024-10-14 03:46:00,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267820 to 267755. [2024-10-14 03:46:00,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267755 states, 267754 states have (on average 1.450095983626762) internal successors, (388269), 267754 states have internal predecessors, (388269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:46:01,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267755 states to 267755 states and 388269 transitions. [2024-10-14 03:46:01,087 INFO L78 Accepts]: Start accepts. Automaton has 267755 states and 388269 transitions. Word has length 255 [2024-10-14 03:46:01,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:46:01,087 INFO L471 AbstractCegarLoop]: Abstraction has 267755 states and 388269 transitions. [2024-10-14 03:46:01,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:46:01,087 INFO L276 IsEmpty]: Start isEmpty. Operand 267755 states and 388269 transitions. [2024-10-14 03:46:02,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-10-14 03:46:02,247 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:46:02,247 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:46:02,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 03:46:02,247 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:46:02,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:46:02,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1439779248, now seen corresponding path program 1 times [2024-10-14 03:46:02,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:46:02,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481377619] [2024-10-14 03:46:02,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:46:02,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:46:02,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:46:02,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:46:02,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:46:02,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481377619] [2024-10-14 03:46:02,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481377619] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:46:02,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:46:02,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:46:02,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918933571] [2024-10-14 03:46:02,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:46:02,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:46:02,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:46:02,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:46:02,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:46:02,542 INFO L87 Difference]: Start difference. First operand 267755 states and 388269 transitions. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:46:05,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:46:05,032 INFO L93 Difference]: Finished difference Result 531267 states and 767051 transitions. [2024-10-14 03:46:05,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:46:05,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 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 256 [2024-10-14 03:46:05,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:46:05,609 INFO L225 Difference]: With dead ends: 531267 [2024-10-14 03:46:05,609 INFO L226 Difference]: Without dead ends: 356715 [2024-10-14 03:46:05,769 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 [2024-10-14 03:46:05,770 INFO L432 NwaCegarLoop]: 1439 mSDtfsCounter, 875 mSDsluCounter, 910 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 2349 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:46:05,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [875 Valid, 2349 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:46:05,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356715 states. [2024-10-14 03:46:09,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356715 to 267755. [2024-10-14 03:46:10,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267755 states, 267754 states have (on average 1.4500735749979459) internal successors, (388263), 267754 states have internal predecessors, (388263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:46:10,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267755 states to 267755 states and 388263 transitions. [2024-10-14 03:46:10,568 INFO L78 Accepts]: Start accepts. Automaton has 267755 states and 388263 transitions. Word has length 256 [2024-10-14 03:46:10,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:46:10,568 INFO L471 AbstractCegarLoop]: Abstraction has 267755 states and 388263 transitions. [2024-10-14 03:46:10,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:46:10,569 INFO L276 IsEmpty]: Start isEmpty. Operand 267755 states and 388263 transitions. [2024-10-14 03:46:11,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2024-10-14 03:46:11,744 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:46:11,744 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:46:11,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 03:46:11,745 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:46:11,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:46:11,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1385441459, now seen corresponding path program 1 times [2024-10-14 03:46:11,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:46:11,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22622559] [2024-10-14 03:46:11,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:46:11,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:46:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:46:12,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:46:12,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:46:12,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22622559] [2024-10-14 03:46:12,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22622559] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:46:12,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:46:12,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:46:12,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142050776] [2024-10-14 03:46:12,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:46:12,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:46:12,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:46:12,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:46:12,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:46:12,123 INFO L87 Difference]: Start difference. First operand 267755 states and 388263 transitions. Second operand has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)