./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label12.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label12.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 d0b5df85e0a9ddd1f309535c1c84b5e9767d041ee38e1a69151fb90b019fbb4f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-23 21:05:17,621 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-23 21:05:17,685 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-23 21:05:17,691 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-23 21:05:17,693 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-23 21:05:17,717 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-23 21:05:17,717 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-23 21:05:17,718 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-23 21:05:17,718 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-23 21:05:17,718 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-23 21:05:17,718 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-23 21:05:17,719 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-23 21:05:17,719 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-23 21:05:17,720 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-23 21:05:17,722 INFO L153 SettingsManager]: * Use SBE=true [2024-10-23 21:05:17,722 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-23 21:05:17,722 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-23 21:05:17,722 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-23 21:05:17,723 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-23 21:05:17,723 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-23 21:05:17,723 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-23 21:05:17,726 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-23 21:05:17,726 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-23 21:05:17,726 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-23 21:05:17,727 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-23 21:05:17,727 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-23 21:05:17,727 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-23 21:05:17,727 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-23 21:05:17,727 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-23 21:05:17,728 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-23 21:05:17,728 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-23 21:05:17,728 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-23 21:05:17,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 21:05:17,728 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-23 21:05:17,728 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-23 21:05:17,728 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-23 21:05:17,728 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-23 21:05:17,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-23 21:05:17,729 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-23 21:05:17,729 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-23 21:05:17,729 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-23 21:05:17,729 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-23 21:05:17,730 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0b5df85e0a9ddd1f309535c1c84b5e9767d041ee38e1a69151fb90b019fbb4f [2024-10-23 21:05:17,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-23 21:05:17,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-23 21:05:17,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-23 21:05:17,978 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-23 21:05:17,978 INFO L274 PluginConnector]: CDTParser initialized [2024-10-23 21:05:17,979 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label12.c [2024-10-23 21:05:19,210 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-23 21:05:19,648 INFO L384 CDTParser]: Found 1 translation units. [2024-10-23 21:05:19,649 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label12.c [2024-10-23 21:05:19,675 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9918ff54b/36ead9b57c8747c186844d2bfb22de46/FLAG6bf783d12 [2024-10-23 21:05:19,820 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9918ff54b/36ead9b57c8747c186844d2bfb22de46 [2024-10-23 21:05:19,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-23 21:05:19,823 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-23 21:05:19,827 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-23 21:05:19,828 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-23 21:05:19,835 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-23 21:05:19,839 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:05:19" (1/1) ... [2024-10-23 21:05:19,843 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b55a090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:05:19, skipping insertion in model container [2024-10-23 21:05:19,843 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:05:19" (1/1) ... [2024-10-23 21:05:19,945 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-23 21:05:20,118 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label12.c[7173,7186] [2024-10-23 21:05:20,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 21:05:20,610 INFO L200 MainTranslator]: Completed pre-run [2024-10-23 21:05:20,628 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label12.c[7173,7186] [2024-10-23 21:05:20,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 21:05:20,939 INFO L204 MainTranslator]: Completed translation [2024-10-23 21:05:20,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:05:20 WrapperNode [2024-10-23 21:05:20,939 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-23 21:05:20,940 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-23 21:05:20,940 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-23 21:05:20,940 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-23 21:05:20,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:05:20" (1/1) ... [2024-10-23 21:05:20,980 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:05:20" (1/1) ... [2024-10-23 21:05:21,220 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4761 [2024-10-23 21:05:21,221 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-23 21:05:21,222 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-23 21:05:21,222 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-23 21:05:21,222 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-23 21:05:21,230 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:05:20" (1/1) ... [2024-10-23 21:05:21,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:05:20" (1/1) ... [2024-10-23 21:05:21,280 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:05:20" (1/1) ... [2024-10-23 21:05:21,461 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-23 21:05:21,461 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:05:20" (1/1) ... [2024-10-23 21:05:21,461 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:05:20" (1/1) ... [2024-10-23 21:05:21,583 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:05:20" (1/1) ... [2024-10-23 21:05:21,604 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:05:20" (1/1) ... [2024-10-23 21:05:21,642 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:05:20" (1/1) ... [2024-10-23 21:05:21,654 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:05:20" (1/1) ... [2024-10-23 21:05:21,685 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-23 21:05:21,686 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-23 21:05:21,686 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-23 21:05:21,687 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-23 21:05:21,687 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:05:20" (1/1) ... [2024-10-23 21:05:21,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 21:05:21,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:05:21,713 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-23 21:05:21,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-23 21:05:21,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-23 21:05:21,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-23 21:05:21,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-23 21:05:21,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-23 21:05:21,802 INFO L238 CfgBuilder]: Building ICFG [2024-10-23 21:05:21,804 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-23 21:05:24,882 INFO L? ?]: Removed 702 outVars from TransFormulas that were not future-live. [2024-10-23 21:05:24,882 INFO L287 CfgBuilder]: Performing block encoding [2024-10-23 21:05:24,929 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-23 21:05:24,930 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-23 21:05:24,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:05:24 BoogieIcfgContainer [2024-10-23 21:05:24,930 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-23 21:05:24,932 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-23 21:05:24,932 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-23 21:05:24,934 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-23 21:05:24,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:05:19" (1/3) ... [2024-10-23 21:05:24,935 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7df42798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:05:24, skipping insertion in model container [2024-10-23 21:05:24,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:05:20" (2/3) ... [2024-10-23 21:05:24,935 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7df42798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:05:24, skipping insertion in model container [2024-10-23 21:05:24,936 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:05:24" (3/3) ... [2024-10-23 21:05:24,936 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label12.c [2024-10-23 21:05:24,948 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-23 21:05:24,949 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-23 21:05:25,005 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-23 21:05:25,010 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;@148e7935, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-23 21:05:25,010 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-23 21:05:25,015 INFO L276 IsEmpty]: Start isEmpty. Operand has 756 states, 754 states have (on average 1.993368700265252) internal successors, (1503), 755 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:25,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-23 21:05:25,021 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:05:25,022 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] [2024-10-23 21:05:25,022 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:05:25,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:05:25,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1152041429, now seen corresponding path program 1 times [2024-10-23 21:05:25,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:05:25,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786112468] [2024-10-23 21:05:25,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:05:25,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:05:25,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:05:25,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:05:25,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:05:25,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786112468] [2024-10-23 21:05:25,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786112468] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:05:25,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:05:25,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:05:25,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515236844] [2024-10-23 21:05:25,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:05:25,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-23 21:05:25,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:05:25,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-23 21:05:25,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 21:05:25,179 INFO L87 Difference]: Start difference. First operand has 756 states, 754 states have (on average 1.993368700265252) internal successors, (1503), 755 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:25,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:05:25,238 INFO L93 Difference]: Finished difference Result 1511 states and 3005 transitions. [2024-10-23 21:05:25,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-23 21:05:25,240 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-10-23 21:05:25,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:05:25,251 INFO L225 Difference]: With dead ends: 1511 [2024-10-23 21:05:25,251 INFO L226 Difference]: Without dead ends: 754 [2024-10-23 21:05:25,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 21:05:25,257 INFO L432 NwaCegarLoop]: 1438 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-23 21:05:25,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1438 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-23 21:05:25,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2024-10-23 21:05:25,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 754. [2024-10-23 21:05:25,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 753 states have (on average 1.9096945551128819) internal successors, (1438), 753 states have internal predecessors, (1438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:25,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1438 transitions. [2024-10-23 21:05:25,306 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1438 transitions. Word has length 57 [2024-10-23 21:05:25,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:05:25,306 INFO L471 AbstractCegarLoop]: Abstraction has 754 states and 1438 transitions. [2024-10-23 21:05:25,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:25,306 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1438 transitions. [2024-10-23 21:05:25,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-23 21:05:25,307 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:05:25,307 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] [2024-10-23 21:05:25,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-23 21:05:25,308 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:05:25,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:05:25,308 INFO L85 PathProgramCache]: Analyzing trace with hash -365892839, now seen corresponding path program 1 times [2024-10-23 21:05:25,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:05:25,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363277407] [2024-10-23 21:05:25,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:05:25,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:05:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:05:25,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:05:25,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:05:25,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363277407] [2024-10-23 21:05:25,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363277407] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:05:25,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:05:25,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:05:25,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289739889] [2024-10-23 21:05:25,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:05:25,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:05:25,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:05:25,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:05:25,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:05:25,559 INFO L87 Difference]: Start difference. First operand 754 states and 1438 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:30,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:05:30,909 INFO L93 Difference]: Finished difference Result 3009 states and 5747 transitions. [2024-10-23 21:05:30,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:05:30,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-10-23 21:05:30,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:05:30,921 INFO L225 Difference]: With dead ends: 3009 [2024-10-23 21:05:30,922 INFO L226 Difference]: Without dead ends: 2256 [2024-10-23 21:05:30,923 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 [2024-10-23 21:05:30,924 INFO L432 NwaCegarLoop]: 673 mSDtfsCounter, 2195 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5355 mSolverCounterSat, 1153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2195 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 6508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 5355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-10-23 21:05:30,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2195 Valid, 691 Invalid, 6508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1153 Valid, 5355 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-10-23 21:05:30,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2256 states. [2024-10-23 21:05:30,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2256 to 2256. [2024-10-23 21:05:30,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2256 states, 2255 states have (on average 1.5751662971175167) internal successors, (3552), 2255 states have internal predecessors, (3552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:30,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2256 states to 2256 states and 3552 transitions. [2024-10-23 21:05:30,978 INFO L78 Accepts]: Start accepts. Automaton has 2256 states and 3552 transitions. Word has length 57 [2024-10-23 21:05:30,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:05:30,979 INFO L471 AbstractCegarLoop]: Abstraction has 2256 states and 3552 transitions. [2024-10-23 21:05:30,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:30,979 INFO L276 IsEmpty]: Start isEmpty. Operand 2256 states and 3552 transitions. [2024-10-23 21:05:30,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-23 21:05:30,982 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:05:30,982 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:05:30,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-23 21:05:30,983 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:05:30,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:05:30,983 INFO L85 PathProgramCache]: Analyzing trace with hash 2138542314, now seen corresponding path program 1 times [2024-10-23 21:05:30,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:05:30,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566677553] [2024-10-23 21:05:30,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:05:30,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:05:31,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:05:31,332 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:05:31,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:05:31,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566677553] [2024-10-23 21:05:31,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566677553] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:05:31,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:05:31,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:05:31,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531151249] [2024-10-23 21:05:31,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:05:31,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:05:31,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:05:31,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:05:31,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:05:31,337 INFO L87 Difference]: Start difference. First operand 2256 states and 3552 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:34,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:05:34,621 INFO L93 Difference]: Finished difference Result 6052 states and 9916 transitions. [2024-10-23 21:05:34,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:05:34,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2024-10-23 21:05:34,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:05:34,634 INFO L225 Difference]: With dead ends: 6052 [2024-10-23 21:05:34,634 INFO L226 Difference]: Without dead ends: 3760 [2024-10-23 21:05:34,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:05:34,642 INFO L432 NwaCegarLoop]: 673 mSDtfsCounter, 705 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 3098 mSolverCounterSat, 728 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 3826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 728 IncrementalHoareTripleChecker+Valid, 3098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-10-23 21:05:34,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [705 Valid, 687 Invalid, 3826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [728 Valid, 3098 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-10-23 21:05:34,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3760 states. [2024-10-23 21:05:34,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3760 to 3758. [2024-10-23 21:05:34,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3758 states, 3757 states have (on average 1.3681128560021294) internal successors, (5140), 3757 states have internal predecessors, (5140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:34,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3758 states to 3758 states and 5140 transitions. [2024-10-23 21:05:34,720 INFO L78 Accepts]: Start accepts. Automaton has 3758 states and 5140 transitions. Word has length 128 [2024-10-23 21:05:34,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:05:34,722 INFO L471 AbstractCegarLoop]: Abstraction has 3758 states and 5140 transitions. [2024-10-23 21:05:34,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:34,723 INFO L276 IsEmpty]: Start isEmpty. Operand 3758 states and 5140 transitions. [2024-10-23 21:05:34,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-10-23 21:05:34,734 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:05:34,735 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:05:34,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-23 21:05:34,735 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:05:34,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:05:34,738 INFO L85 PathProgramCache]: Analyzing trace with hash -720191731, now seen corresponding path program 1 times [2024-10-23 21:05:34,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:05:34,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283583203] [2024-10-23 21:05:34,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:05:34,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:05:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:05:35,084 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-10-23 21:05:35,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:05:35,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283583203] [2024-10-23 21:05:35,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283583203] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:05:35,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:05:35,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:05:35,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072424392] [2024-10-23 21:05:35,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:05:35,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:05:35,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:05:35,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:05:35,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:05:35,086 INFO L87 Difference]: Start difference. First operand 3758 states and 5140 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 2 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:37,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:05:37,485 INFO L93 Difference]: Finished difference Result 9768 states and 13188 transitions. [2024-10-23 21:05:37,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:05:37,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 2 states have internal predecessors, (200), 0 states have call successors, (0), 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 267 [2024-10-23 21:05:37,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:05:37,499 INFO L225 Difference]: With dead ends: 9768 [2024-10-23 21:05:37,499 INFO L226 Difference]: Without dead ends: 6011 [2024-10-23 21:05:37,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:05:37,504 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 697 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1974 mSolverCounterSat, 798 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 2772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 798 IncrementalHoareTripleChecker+Valid, 1974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-23 21:05:37,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 425 Invalid, 2772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [798 Valid, 1974 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-23 21:05:37,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6011 states. [2024-10-23 21:05:37,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6011 to 6011. [2024-10-23 21:05:37,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6011 states, 6010 states have (on average 1.1750415973377704) internal successors, (7062), 6010 states have internal predecessors, (7062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:37,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6011 states to 6011 states and 7062 transitions. [2024-10-23 21:05:37,567 INFO L78 Accepts]: Start accepts. Automaton has 6011 states and 7062 transitions. Word has length 267 [2024-10-23 21:05:37,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:05:37,567 INFO L471 AbstractCegarLoop]: Abstraction has 6011 states and 7062 transitions. [2024-10-23 21:05:37,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 2 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:37,568 INFO L276 IsEmpty]: Start isEmpty. Operand 6011 states and 7062 transitions. [2024-10-23 21:05:37,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2024-10-23 21:05:37,570 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:05:37,570 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:05:37,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-23 21:05:37,570 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:05:37,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:05:37,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1039666680, now seen corresponding path program 1 times [2024-10-23 21:05:37,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:05:37,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820423467] [2024-10-23 21:05:37,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:05:37,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:05:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:05:37,834 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-23 21:05:37,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:05:37,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820423467] [2024-10-23 21:05:37,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820423467] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:05:37,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:05:37,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:05:37,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891410528] [2024-10-23 21:05:37,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:05:37,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:05:37,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:05:37,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:05:37,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:05:37,839 INFO L87 Difference]: Start difference. First operand 6011 states and 7062 transitions. Second operand has 4 states, 4 states have (on average 50.0) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:40,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:05:40,693 INFO L93 Difference]: Finished difference Result 13562 states and 16587 transitions. [2024-10-23 21:05:40,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:05:40,694 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 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 269 [2024-10-23 21:05:40,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:05:40,712 INFO L225 Difference]: With dead ends: 13562 [2024-10-23 21:05:40,713 INFO L226 Difference]: Without dead ends: 8266 [2024-10-23 21:05:40,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:05:40,720 INFO L432 NwaCegarLoop]: 309 mSDtfsCounter, 850 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 3409 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 3962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 3409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-23 21:05:40,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 323 Invalid, 3962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 3409 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-23 21:05:40,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8266 states. [2024-10-23 21:05:40,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8266 to 8264. [2024-10-23 21:05:40,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8264 states, 8263 states have (on average 1.165920367905119) internal successors, (9634), 8263 states have internal predecessors, (9634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:40,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8264 states to 8264 states and 9634 transitions. [2024-10-23 21:05:40,807 INFO L78 Accepts]: Start accepts. Automaton has 8264 states and 9634 transitions. Word has length 269 [2024-10-23 21:05:40,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:05:40,807 INFO L471 AbstractCegarLoop]: Abstraction has 8264 states and 9634 transitions. [2024-10-23 21:05:40,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:40,808 INFO L276 IsEmpty]: Start isEmpty. Operand 8264 states and 9634 transitions. [2024-10-23 21:05:40,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2024-10-23 21:05:40,811 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:05:40,811 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:05:40,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-23 21:05:40,812 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:05:40,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:05:40,812 INFO L85 PathProgramCache]: Analyzing trace with hash 975240308, now seen corresponding path program 1 times [2024-10-23 21:05:40,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:05:40,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466259204] [2024-10-23 21:05:40,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:05:40,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:05:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:05:41,293 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-10-23 21:05:41,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:05:41,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466259204] [2024-10-23 21:05:41,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466259204] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:05:41,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:05:41,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:05:41,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296698349] [2024-10-23 21:05:41,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:05:41,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:05:41,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:05:41,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:05:41,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:05:41,298 INFO L87 Difference]: Start difference. First operand 8264 states and 9634 transitions. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:43,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:05:43,890 INFO L93 Difference]: Finished difference Result 18029 states and 21665 transitions. [2024-10-23 21:05:43,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:05:43,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 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 346 [2024-10-23 21:05:43,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:05:43,933 INFO L225 Difference]: With dead ends: 18029 [2024-10-23 21:05:43,933 INFO L226 Difference]: Without dead ends: 10517 [2024-10-23 21:05:43,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:05:43,950 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 825 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2030 mSolverCounterSat, 989 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 3019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 989 IncrementalHoareTripleChecker+Valid, 2030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-23 21:05:43,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 137 Invalid, 3019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [989 Valid, 2030 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-23 21:05:43,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10517 states. [2024-10-23 21:05:44,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10517 to 10517. [2024-10-23 21:05:44,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10517 states, 10516 states have (on average 1.1934195511601369) internal successors, (12550), 10516 states have internal predecessors, (12550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:44,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10517 states to 10517 states and 12550 transitions. [2024-10-23 21:05:44,285 INFO L78 Accepts]: Start accepts. Automaton has 10517 states and 12550 transitions. Word has length 346 [2024-10-23 21:05:44,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:05:44,286 INFO L471 AbstractCegarLoop]: Abstraction has 10517 states and 12550 transitions. [2024-10-23 21:05:44,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:44,288 INFO L276 IsEmpty]: Start isEmpty. Operand 10517 states and 12550 transitions. [2024-10-23 21:05:44,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2024-10-23 21:05:44,292 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:05:44,292 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:05:44,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-23 21:05:44,293 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:05:44,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:05:44,293 INFO L85 PathProgramCache]: Analyzing trace with hash -2091351240, now seen corresponding path program 1 times [2024-10-23 21:05:44,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:05:44,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638332526] [2024-10-23 21:05:44,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:05:44,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:05:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:05:44,514 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 338 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-10-23 21:05:44,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:05:44,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638332526] [2024-10-23 21:05:44,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638332526] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:05:44,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:05:44,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:05:44,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751814940] [2024-10-23 21:05:44,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:05:44,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:05:44,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:05:44,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:05:44,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:05:44,516 INFO L87 Difference]: Start difference. First operand 10517 states and 12550 transitions. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:47,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:05:47,066 INFO L93 Difference]: Finished difference Result 22535 states and 27263 transitions. [2024-10-23 21:05:47,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:05:47,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 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 370 [2024-10-23 21:05:47,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:05:47,103 INFO L225 Difference]: With dead ends: 22535 [2024-10-23 21:05:47,104 INFO L226 Difference]: Without dead ends: 12770 [2024-10-23 21:05:47,112 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:05:47,115 INFO L432 NwaCegarLoop]: 1194 mSDtfsCounter, 680 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2239 mSolverCounterSat, 309 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 2548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 309 IncrementalHoareTripleChecker+Valid, 2239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-23 21:05:47,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 1201 Invalid, 2548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [309 Valid, 2239 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-23 21:05:47,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12770 states. [2024-10-23 21:05:47,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12770 to 12770. [2024-10-23 21:05:47,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12770 states, 12769 states have (on average 1.1820816038844075) internal successors, (15094), 12769 states have internal predecessors, (15094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:47,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12770 states to 12770 states and 15094 transitions. [2024-10-23 21:05:47,244 INFO L78 Accepts]: Start accepts. Automaton has 12770 states and 15094 transitions. Word has length 370 [2024-10-23 21:05:47,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:05:47,245 INFO L471 AbstractCegarLoop]: Abstraction has 12770 states and 15094 transitions. [2024-10-23 21:05:47,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:47,245 INFO L276 IsEmpty]: Start isEmpty. Operand 12770 states and 15094 transitions. [2024-10-23 21:05:47,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2024-10-23 21:05:47,251 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:05:47,251 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:05:47,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-23 21:05:47,330 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:05:47,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:05:47,333 INFO L85 PathProgramCache]: Analyzing trace with hash -32624525, now seen corresponding path program 1 times [2024-10-23 21:05:47,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:05:47,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987247289] [2024-10-23 21:05:47,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:05:47,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:05:47,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:05:47,545 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 364 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-10-23 21:05:47,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:05:47,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987247289] [2024-10-23 21:05:47,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987247289] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:05:47,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:05:47,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:05:47,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147435214] [2024-10-23 21:05:47,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:05:47,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:05:47,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:05:47,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:05:47,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:05:47,547 INFO L87 Difference]: Start difference. First operand 12770 states and 15094 transitions. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:50,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:05:50,315 INFO L93 Difference]: Finished difference Result 35302 states and 42252 transitions. [2024-10-23 21:05:50,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:05:50,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 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 384 [2024-10-23 21:05:50,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:05:50,349 INFO L225 Difference]: With dead ends: 35302 [2024-10-23 21:05:50,350 INFO L226 Difference]: Without dead ends: 23284 [2024-10-23 21:05:50,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:05:50,364 INFO L432 NwaCegarLoop]: 1256 mSDtfsCounter, 635 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2631 mSolverCounterSat, 391 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 3022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 391 IncrementalHoareTripleChecker+Valid, 2631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-23 21:05:50,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 1263 Invalid, 3022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [391 Valid, 2631 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-23 21:05:50,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23284 states. [2024-10-23 21:05:50,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23284 to 21031. [2024-10-23 21:05:50,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21031 states, 21030 states have (on average 1.1846885401806941) internal successors, (24914), 21030 states have internal predecessors, (24914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:50,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21031 states to 21031 states and 24914 transitions. [2024-10-23 21:05:50,570 INFO L78 Accepts]: Start accepts. Automaton has 21031 states and 24914 transitions. Word has length 384 [2024-10-23 21:05:50,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:05:50,571 INFO L471 AbstractCegarLoop]: Abstraction has 21031 states and 24914 transitions. [2024-10-23 21:05:50,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:50,571 INFO L276 IsEmpty]: Start isEmpty. Operand 21031 states and 24914 transitions. [2024-10-23 21:05:50,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2024-10-23 21:05:50,574 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:05:50,575 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:05:50,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-23 21:05:50,576 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:05:50,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:05:50,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1608319554, now seen corresponding path program 1 times [2024-10-23 21:05:50,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:05:50,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492426098] [2024-10-23 21:05:50,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:05:50,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:05:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:05:50,949 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 101 proven. 66 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-10-23 21:05:50,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:05:50,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492426098] [2024-10-23 21:05:50,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492426098] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 21:05:50,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69200011] [2024-10-23 21:05:50,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:05:50,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:05:50,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:05:50,952 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-23 21:05:50,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-23 21:05:51,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:05:51,185 INFO L255 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-23 21:05:51,196 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 21:05:51,316 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-10-23 21:05:51,316 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 21:05:51,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69200011] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:05:51,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-23 21:05:51,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-23 21:05:51,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557133436] [2024-10-23 21:05:51,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:05:51,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:05:51,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:05:51,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:05:51,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-23 21:05:51,322 INFO L87 Difference]: Start difference. First operand 21031 states and 24914 transitions. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:54,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:05:54,062 INFO L93 Difference]: Finished difference Result 57081 states and 68486 transitions. [2024-10-23 21:05:54,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:05:54,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 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 385 [2024-10-23 21:05:54,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:05:54,108 INFO L225 Difference]: With dead ends: 57081 [2024-10-23 21:05:54,108 INFO L226 Difference]: Without dead ends: 36802 [2024-10-23 21:05:54,129 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-23 21:05:54,130 INFO L432 NwaCegarLoop]: 1335 mSDtfsCounter, 716 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2173 mSolverCounterSat, 686 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 2859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 686 IncrementalHoareTripleChecker+Valid, 2173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-23 21:05:54,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [716 Valid, 1342 Invalid, 2859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [686 Valid, 2173 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-23 21:05:54,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36802 states. [2024-10-23 21:05:54,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36802 to 35300. [2024-10-23 21:05:54,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35300 states, 35299 states have (on average 1.1462930961217033) internal successors, (40463), 35299 states have internal predecessors, (40463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:54,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35300 states to 35300 states and 40463 transitions. [2024-10-23 21:05:54,439 INFO L78 Accepts]: Start accepts. Automaton has 35300 states and 40463 transitions. Word has length 385 [2024-10-23 21:05:54,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:05:54,439 INFO L471 AbstractCegarLoop]: Abstraction has 35300 states and 40463 transitions. [2024-10-23 21:05:54,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:05:54,440 INFO L276 IsEmpty]: Start isEmpty. Operand 35300 states and 40463 transitions. [2024-10-23 21:05:54,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2024-10-23 21:05:54,443 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:05:54,443 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:05:54,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-23 21:05:54,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:05:54,648 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:05:54,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:05:54,649 INFO L85 PathProgramCache]: Analyzing trace with hash -611309079, now seen corresponding path program 1 times [2024-10-23 21:05:54,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:05:54,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861615982] [2024-10-23 21:05:54,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:05:54,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:05:54,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:05:55,482 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 351 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:05:55,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:05:55,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861615982] [2024-10-23 21:05:55,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861615982] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 21:05:55,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533459343] [2024-10-23 21:05:55,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:05:55,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:05:55,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:05:55,484 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-23 21:05:55,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-23 21:05:55,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:05:55,596 INFO L255 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-23 21:05:55,602 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 21:05:56,122 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-10-23 21:05:56,123 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 21:05:56,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533459343] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:05:56,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-23 21:05:56,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-10-23 21:05:56,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898992532] [2024-10-23 21:05:56,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:05:56,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:05:56,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:05:56,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:05:56,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-23 21:05:56,125 INFO L87 Difference]: Start difference. First operand 35300 states and 40463 transitions. Second operand has 4 states, 4 states have (on average 51.25) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:06:00,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:06:00,620 INFO L93 Difference]: Finished difference Result 104396 states and 120840 transitions. [2024-10-23 21:06:00,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:06:00,621 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.25) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 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 388 [2024-10-23 21:06:00,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:06:00,699 INFO L225 Difference]: With dead ends: 104396 [2024-10-23 21:06:00,699 INFO L226 Difference]: Without dead ends: 69848 [2024-10-23 21:06:00,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-23 21:06:00,722 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 1849 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 4638 mSolverCounterSat, 617 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1849 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 5255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 617 IncrementalHoareTripleChecker+Valid, 4638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-10-23 21:06:00,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1849 Valid, 27 Invalid, 5255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [617 Valid, 4638 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-10-23 21:06:00,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69848 states. [2024-10-23 21:06:01,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69848 to 69846. [2024-10-23 21:06:01,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69846 states, 69845 states have (on average 1.1525807144391151) internal successors, (80502), 69845 states have internal predecessors, (80502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:06:01,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69846 states to 69846 states and 80502 transitions. [2024-10-23 21:06:01,445 INFO L78 Accepts]: Start accepts. Automaton has 69846 states and 80502 transitions. Word has length 388 [2024-10-23 21:06:01,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:06:01,447 INFO L471 AbstractCegarLoop]: Abstraction has 69846 states and 80502 transitions. [2024-10-23 21:06:01,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.25) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:06:01,447 INFO L276 IsEmpty]: Start isEmpty. Operand 69846 states and 80502 transitions. [2024-10-23 21:06:01,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2024-10-23 21:06:01,452 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:06:01,452 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:06:01,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-23 21:06:01,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-23 21:06:01,653 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:06:01,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:06:01,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1487480358, now seen corresponding path program 1 times [2024-10-23 21:06:01,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:06:01,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966479142] [2024-10-23 21:06:01,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:06:01,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:06:01,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:06:01,944 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 362 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-10-23 21:06:01,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:06:01,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966479142] [2024-10-23 21:06:01,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966479142] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:06:01,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:06:01,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:06:01,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108213550] [2024-10-23 21:06:01,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:06:01,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:06:01,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:06:01,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:06:01,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:06:01,950 INFO L87 Difference]: Start difference. First operand 69846 states and 80502 transitions. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:06:05,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:06:05,654 INFO L93 Difference]: Finished difference Result 138940 states and 160247 transitions. [2024-10-23 21:06:05,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:06:05,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 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 417 [2024-10-23 21:06:05,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:06:05,727 INFO L225 Difference]: With dead ends: 138940 [2024-10-23 21:06:05,728 INFO L226 Difference]: Without dead ends: 69846 [2024-10-23 21:06:05,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:06:05,749 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 774 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2167 mSolverCounterSat, 725 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 2892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 725 IncrementalHoareTripleChecker+Valid, 2167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-10-23 21:06:05,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 103 Invalid, 2892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [725 Valid, 2167 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-10-23 21:06:05,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69846 states. [2024-10-23 21:06:06,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69846 to 69846. [2024-10-23 21:06:06,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69846 states, 69845 states have (on average 1.1406686233803423) internal successors, (79670), 69845 states have internal predecessors, (79670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:06:06,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69846 states to 69846 states and 79670 transitions. [2024-10-23 21:06:06,586 INFO L78 Accepts]: Start accepts. Automaton has 69846 states and 79670 transitions. Word has length 417 [2024-10-23 21:06:06,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:06:06,587 INFO L471 AbstractCegarLoop]: Abstraction has 69846 states and 79670 transitions. [2024-10-23 21:06:06,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:06:06,587 INFO L276 IsEmpty]: Start isEmpty. Operand 69846 states and 79670 transitions. [2024-10-23 21:06:06,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2024-10-23 21:06:06,593 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:06:06,593 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:06:06,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-23 21:06:06,594 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:06:06,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:06:06,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1478419937, now seen corresponding path program 1 times [2024-10-23 21:06:06,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:06:06,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475652448] [2024-10-23 21:06:06,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:06:06,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:06:06,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:06:06,877 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 601 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-10-23 21:06:06,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:06:06,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475652448] [2024-10-23 21:06:06,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475652448] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:06:06,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:06:06,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:06:06,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084139786] [2024-10-23 21:06:06,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:06:06,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:06:06,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:06:06,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:06:06,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:06:06,879 INFO L87 Difference]: Start difference. First operand 69846 states and 79670 transitions. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:06:09,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:06:09,695 INFO L93 Difference]: Finished difference Result 141193 states and 160850 transitions. [2024-10-23 21:06:09,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:06:09,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 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 468 [2024-10-23 21:06:09,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:06:09,778 INFO L225 Difference]: With dead ends: 141193 [2024-10-23 21:06:09,779 INFO L226 Difference]: Without dead ends: 72099 [2024-10-23 21:06:09,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:06:09,810 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 721 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2243 mSolverCounterSat, 715 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 721 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 2958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 715 IncrementalHoareTripleChecker+Valid, 2243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-23 21:06:09,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [721 Valid, 120 Invalid, 2958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [715 Valid, 2243 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-23 21:06:09,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72099 states. [2024-10-23 21:06:10,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72099 to 69846. [2024-10-23 21:06:10,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69846 states, 69845 states have (on average 1.1310616364807788) internal successors, (78999), 69845 states have internal predecessors, (78999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:06:10,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69846 states to 69846 states and 78999 transitions. [2024-10-23 21:06:10,612 INFO L78 Accepts]: Start accepts. Automaton has 69846 states and 78999 transitions. Word has length 468 [2024-10-23 21:06:10,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:06:10,613 INFO L471 AbstractCegarLoop]: Abstraction has 69846 states and 78999 transitions. [2024-10-23 21:06:10,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:06:10,613 INFO L276 IsEmpty]: Start isEmpty. Operand 69846 states and 78999 transitions. [2024-10-23 21:06:10,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-10-23 21:06:10,622 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:06:10,622 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:06:10,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-23 21:06:10,622 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:06:10,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:06:10,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1200536195, now seen corresponding path program 1 times [2024-10-23 21:06:10,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:06:10,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528617398] [2024-10-23 21:06:10,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:06:10,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:06:10,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:06:11,060 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 499 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2024-10-23 21:06:11,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:06:11,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528617398] [2024-10-23 21:06:11,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528617398] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:06:11,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:06:11,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:06:11,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300128991] [2024-10-23 21:06:11,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:06:11,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:06:11,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:06:11,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:06:11,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:06:11,062 INFO L87 Difference]: Start difference. First operand 69846 states and 78999 transitions. Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:06:13,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:06:13,776 INFO L93 Difference]: Finished difference Result 172735 states and 196080 transitions. [2024-10-23 21:06:13,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:06:13,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 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 479 [2024-10-23 21:06:13,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:06:13,896 INFO L225 Difference]: With dead ends: 172735 [2024-10-23 21:06:13,896 INFO L226 Difference]: Without dead ends: 103641 [2024-10-23 21:06:13,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:06:13,932 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 669 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2478 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 2879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 2478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-23 21:06:13,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [669 Valid, 340 Invalid, 2879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 2478 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-23 21:06:13,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103641 states. [2024-10-23 21:06:15,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103641 to 101388. [2024-10-23 21:06:15,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101388 states, 101387 states have (on average 1.1290204858611064) internal successors, (114468), 101387 states have internal predecessors, (114468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:06:15,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101388 states to 101388 states and 114468 transitions. [2024-10-23 21:06:15,174 INFO L78 Accepts]: Start accepts. Automaton has 101388 states and 114468 transitions. Word has length 479 [2024-10-23 21:06:15,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:06:15,174 INFO L471 AbstractCegarLoop]: Abstraction has 101388 states and 114468 transitions. [2024-10-23 21:06:15,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:06:15,175 INFO L276 IsEmpty]: Start isEmpty. Operand 101388 states and 114468 transitions. [2024-10-23 21:06:15,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2024-10-23 21:06:15,182 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:06:15,182 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:06:15,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-23 21:06:15,182 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:06:15,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:06:15,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1455935259, now seen corresponding path program 1 times [2024-10-23 21:06:15,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:06:15,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588361721] [2024-10-23 21:06:15,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:06:15,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:06:15,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:06:15,638 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2024-10-23 21:06:15,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:06:15,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588361721] [2024-10-23 21:06:15,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588361721] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:06:15,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:06:15,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:06:15,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109841323] [2024-10-23 21:06:15,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:06:15,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:06:15,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:06:15,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:06:15,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:06:15,639 INFO L87 Difference]: Start difference. First operand 101388 states and 114468 transitions. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:06:18,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:06:18,628 INFO L93 Difference]: Finished difference Result 247084 states and 282135 transitions. [2024-10-23 21:06:18,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:06:18,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 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 492 [2024-10-23 21:06:18,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:06:18,869 INFO L225 Difference]: With dead ends: 247084 [2024-10-23 21:06:18,870 INFO L226 Difference]: Without dead ends: 146448 [2024-10-23 21:06:18,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:06:18,939 INFO L432 NwaCegarLoop]: 542 mSDtfsCounter, 729 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2321 mSolverCounterSat, 554 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 2875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 554 IncrementalHoareTripleChecker+Valid, 2321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-23 21:06:18,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 549 Invalid, 2875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [554 Valid, 2321 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-23 21:06:19,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146448 states. [2024-10-23 21:06:20,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146448 to 141191. [2024-10-23 21:06:20,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141191 states, 141190 states have (on average 1.1178837028118138) internal successors, (157834), 141190 states have internal predecessors, (157834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:06:20,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141191 states to 141191 states and 157834 transitions. [2024-10-23 21:06:20,679 INFO L78 Accepts]: Start accepts. Automaton has 141191 states and 157834 transitions. Word has length 492 [2024-10-23 21:06:20,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:06:20,679 INFO L471 AbstractCegarLoop]: Abstraction has 141191 states and 157834 transitions. [2024-10-23 21:06:20,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:06:20,679 INFO L276 IsEmpty]: Start isEmpty. Operand 141191 states and 157834 transitions. [2024-10-23 21:06:20,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2024-10-23 21:06:20,689 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:06:20,690 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:06:20,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-23 21:06:20,690 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:06:20,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:06:20,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1372630075, now seen corresponding path program 1 times [2024-10-23 21:06:20,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:06:20,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677848438] [2024-10-23 21:06:20,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:06:20,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:06:20,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:06:21,404 INFO L134 CoverageAnalysis]: Checked inductivity of 839 backedges. 223 proven. 0 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2024-10-23 21:06:21,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:06:21,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677848438] [2024-10-23 21:06:21,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677848438] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:06:21,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:06:21,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:06:21,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120501458] [2024-10-23 21:06:21,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:06:21,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:06:21,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:06:21,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:06:21,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:06:21,406 INFO L87 Difference]: Start difference. First operand 141191 states and 157834 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:06:25,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:06:25,324 INFO L93 Difference]: Finished difference Result 368746 states and 414002 transitions. [2024-10-23 21:06:25,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:06:25,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 531 [2024-10-23 21:06:25,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:06:25,639 INFO L225 Difference]: With dead ends: 368746 [2024-10-23 21:06:25,640 INFO L226 Difference]: Without dead ends: 228307 [2024-10-23 21:06:25,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:06:25,747 INFO L432 NwaCegarLoop]: 927 mSDtfsCounter, 765 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2280 mSolverCounterSat, 737 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 3017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 737 IncrementalHoareTripleChecker+Valid, 2280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-23 21:06:25,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 934 Invalid, 3017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [737 Valid, 2280 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-23 21:06:26,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228307 states. [2024-10-23 21:06:28,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228307 to 227556. [2024-10-23 21:06:28,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227556 states, 227555 states have (on average 1.1174705016369668) internal successors, (254286), 227555 states have internal predecessors, (254286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:06:28,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227556 states to 227556 states and 254286 transitions. [2024-10-23 21:06:28,971 INFO L78 Accepts]: Start accepts. Automaton has 227556 states and 254286 transitions. Word has length 531 [2024-10-23 21:06:28,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:06:28,971 INFO L471 AbstractCegarLoop]: Abstraction has 227556 states and 254286 transitions. [2024-10-23 21:06:28,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:06:28,971 INFO L276 IsEmpty]: Start isEmpty. Operand 227556 states and 254286 transitions. [2024-10-23 21:06:29,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 717 [2024-10-23 21:06:29,006 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:06:29,006 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:06:29,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-23 21:06:29,007 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:06:29,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:06:29,007 INFO L85 PathProgramCache]: Analyzing trace with hash 481207073, now seen corresponding path program 1 times [2024-10-23 21:06:29,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:06:29,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951971773] [2024-10-23 21:06:29,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:06:29,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:06:29,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:06:29,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1368 backedges. 896 proven. 180 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-10-23 21:06:29,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:06:29,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951971773] [2024-10-23 21:06:29,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951971773] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 21:06:29,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035871041] [2024-10-23 21:06:29,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:06:29,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:06:29,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:06:29,827 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-23 21:06:29,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-23 21:06:30,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:06:30,049 INFO L255 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-23 21:06:30,056 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 21:06:30,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1368 backedges. 279 proven. 0 refuted. 0 times theorem prover too weak. 1089 trivial. 0 not checked. [2024-10-23 21:06:30,133 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 21:06:30,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035871041] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:06:30,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-23 21:06:30,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 5 [2024-10-23 21:06:30,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647402372] [2024-10-23 21:06:30,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:06:30,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:06:30,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:06:30,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:06:30,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-23 21:06:30,136 INFO L87 Difference]: Start difference. First operand 227556 states and 254286 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) [2024-10-23 21:06:33,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:06:33,381 INFO L93 Difference]: Finished difference Result 433332 states and 485628 transitions. [2024-10-23 21:06:33,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:06:33,382 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 716 [2024-10-23 21:06:33,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:06:33,654 INFO L225 Difference]: With dead ends: 433332 [2024-10-23 21:06:33,654 INFO L226 Difference]: Without dead ends: 244829 [2024-10-23 21:06:33,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 720 GetRequests, 717 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-23 21:06:33,751 INFO L432 NwaCegarLoop]: 1107 mSDtfsCounter, 816 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2177 mSolverCounterSat, 410 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 2587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 410 IncrementalHoareTripleChecker+Valid, 2177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-23 21:06:33,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 1114 Invalid, 2587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [410 Valid, 2177 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-23 21:06:33,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244829 states. [2024-10-23 21:06:36,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244829 to 210283. [2024-10-23 21:06:36,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210283 states, 210282 states have (on average 1.1173138927725625) internal successors, (234951), 210282 states have internal predecessors, (234951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:06:37,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210283 states to 210283 states and 234951 transitions. [2024-10-23 21:06:37,510 INFO L78 Accepts]: Start accepts. Automaton has 210283 states and 234951 transitions. Word has length 716 [2024-10-23 21:06:37,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:06:37,510 INFO L471 AbstractCegarLoop]: Abstraction has 210283 states and 234951 transitions. [2024-10-23 21:06:37,511 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) [2024-10-23 21:06:37,511 INFO L276 IsEmpty]: Start isEmpty. Operand 210283 states and 234951 transitions. [2024-10-23 21:06:37,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1457 [2024-10-23 21:06:37,686 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:06:37,686 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:06:37,706 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-23 21:06:37,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:06:37,888 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:06:37,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:06:37,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1542064420, now seen corresponding path program 1 times [2024-10-23 21:06:37,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:06:37,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367315477] [2024-10-23 21:06:37,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:06:37,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:06:38,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:06:38,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1795 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 1515 trivial. 0 not checked. [2024-10-23 21:06:38,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:06:38,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367315477] [2024-10-23 21:06:38,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367315477] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:06:38,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:06:38,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:06:38,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442008312] [2024-10-23 21:06:38,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:06:38,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:06:38,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:06:38,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:06:38,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:06:38,938 INFO L87 Difference]: Start difference. First operand 210283 states and 234951 transitions. Second operand has 3 states, 3 states have (on average 247.33333333333334) internal successors, (742), 3 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:06:42,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:06:42,274 INFO L93 Difference]: Finished difference Result 422816 states and 472169 transitions. [2024-10-23 21:06:42,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:06:42,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 247.33333333333334) internal successors, (742), 3 states have internal predecessors, (742), 0 states have call successors, (0), 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 1456 [2024-10-23 21:06:42,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:06:42,277 INFO L225 Difference]: With dead ends: 422816 [2024-10-23 21:06:42,277 INFO L226 Difference]: Without dead ends: 0 [2024-10-23 21:06:42,392 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:06:42,392 INFO L432 NwaCegarLoop]: 1207 mSDtfsCounter, 724 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2422 mSolverCounterSat, 438 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 2860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 438 IncrementalHoareTripleChecker+Valid, 2422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-23 21:06:42,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 1213 Invalid, 2860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [438 Valid, 2422 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-23 21:06:42,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-23 21:06:42,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-23 21:06:42,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:06:42,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-23 21:06:42,394 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1456 [2024-10-23 21:06:42,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:06:42,394 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-23 21:06:42,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 247.33333333333334) internal successors, (742), 3 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:06:42,394 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-23 21:06:42,394 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-23 21:06:42,396 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-23 21:06:42,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-23 21:06:42,399 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:06:42,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-23 21:06:47,723 WARN L286 SmtUtils]: Spent 5.32s on a formula simplification. DAG size of input: 444 DAG size of output: 452 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or)