./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/Problem04_label28.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/Problem04_label28.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 6461bc710c8cd4e03b81a9250af5b6e8fd4423c40b90cbb92a2a9d089d091a2d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-23 20:26:33,548 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-23 20:26:33,601 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-23 20:26:33,605 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-23 20:26:33,606 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-23 20:26:33,627 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-23 20:26:33,628 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-23 20:26:33,628 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-23 20:26:33,629 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-23 20:26:33,632 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-23 20:26:33,632 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-23 20:26:33,632 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-23 20:26:33,632 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-23 20:26:33,632 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-23 20:26:33,633 INFO L153 SettingsManager]: * Use SBE=true [2024-10-23 20:26:33,633 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-23 20:26:33,633 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-23 20:26:33,633 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-23 20:26:33,633 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-23 20:26:33,633 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-23 20:26:33,633 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-23 20:26:33,635 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-23 20:26:33,635 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-23 20:26:33,635 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-23 20:26:33,636 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-23 20:26:33,636 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-23 20:26:33,636 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-23 20:26:33,636 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-23 20:26:33,636 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-23 20:26:33,637 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-23 20:26:33,637 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-23 20:26:33,637 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-23 20:26:33,638 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 20:26:33,638 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-23 20:26:33,638 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-23 20:26:33,638 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-23 20:26:33,638 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-23 20:26:33,638 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-23 20:26:33,638 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-23 20:26:33,639 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-23 20:26:33,639 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-23 20:26:33,639 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-23 20:26:33,639 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6461bc710c8cd4e03b81a9250af5b6e8fd4423c40b90cbb92a2a9d089d091a2d [2024-10-23 20:26:33,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-23 20:26:33,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-23 20:26:33,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-23 20:26:33,896 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-23 20:26:33,896 INFO L274 PluginConnector]: CDTParser initialized [2024-10-23 20:26:33,897 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem04_label28.c [2024-10-23 20:26:35,075 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-23 20:26:35,448 INFO L384 CDTParser]: Found 1 translation units. [2024-10-23 20:26:35,449 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem04_label28.c [2024-10-23 20:26:35,477 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cecf22de2/8f6f9577160647ddac71dd6be5a95acc/FLAGc661648af [2024-10-23 20:26:35,492 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cecf22de2/8f6f9577160647ddac71dd6be5a95acc [2024-10-23 20:26:35,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-23 20:26:35,495 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-23 20:26:35,497 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-23 20:26:35,498 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-23 20:26:35,502 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-23 20:26:35,502 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:26:35" (1/1) ... [2024-10-23 20:26:35,503 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1472c7a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:26:35, skipping insertion in model container [2024-10-23 20:26:35,503 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:26:35" (1/1) ... [2024-10-23 20:26:35,577 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-23 20:26:36,300 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/Problem04_label28.c[183461,183474] [2024-10-23 20:26:36,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 20:26:36,319 INFO L200 MainTranslator]: Completed pre-run [2024-10-23 20:26:36,643 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/Problem04_label28.c[183461,183474] [2024-10-23 20:26:36,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 20:26:36,670 INFO L204 MainTranslator]: Completed translation [2024-10-23 20:26:36,671 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:26:36 WrapperNode [2024-10-23 20:26:36,671 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-23 20:26:36,672 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-23 20:26:36,672 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-23 20:26:36,672 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-23 20:26:36,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:26:36" (1/1) ... [2024-10-23 20:26:36,710 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:26:36" (1/1) ... [2024-10-23 20:26:36,815 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5576 [2024-10-23 20:26:36,816 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-23 20:26:36,816 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-23 20:26:36,816 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-23 20:26:36,816 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-23 20:26:36,825 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:26:36" (1/1) ... [2024-10-23 20:26:36,825 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:26:36" (1/1) ... [2024-10-23 20:26:36,838 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:26:36" (1/1) ... [2024-10-23 20:26:36,889 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 20:26:36,890 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:26:36" (1/1) ... [2024-10-23 20:26:36,890 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:26:36" (1/1) ... [2024-10-23 20:26:37,009 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:26:36" (1/1) ... [2024-10-23 20:26:37,068 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:26:36" (1/1) ... [2024-10-23 20:26:37,079 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:26:36" (1/1) ... [2024-10-23 20:26:37,088 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:26:36" (1/1) ... [2024-10-23 20:26:37,102 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-23 20:26:37,103 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-23 20:26:37,103 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-23 20:26:37,103 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-23 20:26:37,104 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:26:36" (1/1) ... [2024-10-23 20:26:37,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 20:26:37,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 20:26:37,134 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 20:26:37,135 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 20:26:37,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-23 20:26:37,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-23 20:26:37,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-23 20:26:37,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-23 20:26:37,257 INFO L238 CfgBuilder]: Building ICFG [2024-10-23 20:26:37,263 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-23 20:26:40,391 INFO L? ?]: Removed 768 outVars from TransFormulas that were not future-live. [2024-10-23 20:26:40,391 INFO L287 CfgBuilder]: Performing block encoding [2024-10-23 20:26:40,450 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-23 20:26:40,450 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-23 20:26:40,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:26:40 BoogieIcfgContainer [2024-10-23 20:26:40,451 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-23 20:26:40,453 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-23 20:26:40,453 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-23 20:26:40,455 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-23 20:26:40,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:26:35" (1/3) ... [2024-10-23 20:26:40,456 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d91e888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:26:40, skipping insertion in model container [2024-10-23 20:26:40,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:26:36" (2/3) ... [2024-10-23 20:26:40,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d91e888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:26:40, skipping insertion in model container [2024-10-23 20:26:40,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:26:40" (3/3) ... [2024-10-23 20:26:40,458 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem04_label28.c [2024-10-23 20:26:40,470 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-23 20:26:40,470 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-23 20:26:40,539 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-23 20:26:40,545 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;@f2210a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-23 20:26:40,545 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-23 20:26:40,551 INFO L276 IsEmpty]: Start isEmpty. Operand has 823 states, 821 states have (on average 1.992691839220463) internal successors, (1636), 822 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states 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 20:26:40,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 808 [2024-10-23 20:26:40,592 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:26:40,594 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:26:40,595 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:26:40,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:26:40,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1284338326, now seen corresponding path program 1 times [2024-10-23 20:26:40,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:26:40,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7800209] [2024-10-23 20:26:40,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:26:40,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:26:40,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:26:41,474 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 20:26:41,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:26:41,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7800209] [2024-10-23 20:26:41,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7800209] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:26:41,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:26:41,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 20:26:41,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385479625] [2024-10-23 20:26:41,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:26:41,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-23 20:26:41,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:26:41,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-23 20:26:41,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 20:26:41,510 INFO L87 Difference]: Start difference. First operand has 823 states, 821 states have (on average 1.992691839220463) internal successors, (1636), 822 states have internal predecessors, (1636), 0 states have call successors, (0), 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 403.5) internal successors, (807), 2 states have internal predecessors, (807), 0 states have call successors, (0), 0 states 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 20:26:41,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:26:41,590 INFO L93 Difference]: Finished difference Result 1645 states and 3271 transitions. [2024-10-23 20:26:41,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-23 20:26:41,592 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 403.5) internal successors, (807), 2 states have internal predecessors, (807), 0 states have call successors, (0), 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 807 [2024-10-23 20:26:41,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:26:41,615 INFO L225 Difference]: With dead ends: 1645 [2024-10-23 20:26:41,615 INFO L226 Difference]: Without dead ends: 821 [2024-10-23 20:26:41,622 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 20:26:41,624 INFO L432 NwaCegarLoop]: 1571 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, 1571 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 20:26:41,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1571 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-23 20:26:41,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2024-10-23 20:26:41,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 821. [2024-10-23 20:26:41,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 820 states have (on average 1.9158536585365853) internal successors, (1571), 820 states have internal predecessors, (1571), 0 states have call successors, (0), 0 states 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 20:26:41,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1571 transitions. [2024-10-23 20:26:41,692 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1571 transitions. Word has length 807 [2024-10-23 20:26:41,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:26:41,693 INFO L471 AbstractCegarLoop]: Abstraction has 821 states and 1571 transitions. [2024-10-23 20:26:41,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 403.5) internal successors, (807), 2 states have internal predecessors, (807), 0 states have call successors, (0), 0 states 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 20:26:41,694 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1571 transitions. [2024-10-23 20:26:41,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 808 [2024-10-23 20:26:41,704 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:26:41,705 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:26:41,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-23 20:26:41,706 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:26:41,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:26:41,706 INFO L85 PathProgramCache]: Analyzing trace with hash -452794335, now seen corresponding path program 1 times [2024-10-23 20:26:41,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:26:41,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842096441] [2024-10-23 20:26:41,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:26:41,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:26:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:26:42,598 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 20:26:42,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:26:42,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842096441] [2024-10-23 20:26:42,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842096441] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:26:42,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:26:42,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 20:26:42,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291230969] [2024-10-23 20:26:42,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:26:42,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:26:42,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:26:42,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:26:42,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:26:42,605 INFO L87 Difference]: Start difference. First operand 821 states and 1571 transitions. Second operand has 3 states, 3 states have (on average 269.0) internal successors, (807), 2 states have internal predecessors, (807), 0 states have call successors, (0), 0 states 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 20:26:45,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:26:45,272 INFO L93 Difference]: Finished difference Result 2459 states and 4710 transitions. [2024-10-23 20:26:45,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:26:45,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 269.0) internal successors, (807), 2 states have internal predecessors, (807), 0 states have call successors, (0), 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 807 [2024-10-23 20:26:45,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:26:45,280 INFO L225 Difference]: With dead ends: 2459 [2024-10-23 20:26:45,280 INFO L226 Difference]: Without dead ends: 1639 [2024-10-23 20:26:45,281 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 20:26:45,282 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 84 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2370 mSolverCounterSat, 1298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 3668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1298 IncrementalHoareTripleChecker+Valid, 2370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-23 20:26:45,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 89 Invalid, 3668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1298 Valid, 2370 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-23 20:26:45,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2024-10-23 20:26:45,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1639. [2024-10-23 20:26:45,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1639 states, 1638 states have (on average 1.8724053724053724) internal successors, (3067), 1638 states have internal predecessors, (3067), 0 states have call successors, (0), 0 states 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 20:26:45,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1639 states to 1639 states and 3067 transitions. [2024-10-23 20:26:45,343 INFO L78 Accepts]: Start accepts. Automaton has 1639 states and 3067 transitions. Word has length 807 [2024-10-23 20:26:45,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:26:45,345 INFO L471 AbstractCegarLoop]: Abstraction has 1639 states and 3067 transitions. [2024-10-23 20:26:45,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 269.0) internal successors, (807), 2 states have internal predecessors, (807), 0 states have call successors, (0), 0 states 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 20:26:45,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1639 states and 3067 transitions. [2024-10-23 20:26:45,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 813 [2024-10-23 20:26:45,358 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:26:45,358 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:26:45,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-23 20:26:45,359 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:26:45,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:26:45,360 INFO L85 PathProgramCache]: Analyzing trace with hash 769286707, now seen corresponding path program 1 times [2024-10-23 20:26:45,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:26:45,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638371788] [2024-10-23 20:26:45,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:26:45,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:26:45,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:26:45,938 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 20:26:45,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:26:45,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638371788] [2024-10-23 20:26:45,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638371788] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:26:45,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:26:45,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 20:26:45,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518965060] [2024-10-23 20:26:45,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:26:45,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:26:45,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:26:45,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:26:45,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:26:45,945 INFO L87 Difference]: Start difference. First operand 1639 states and 3067 transitions. Second operand has 3 states, 3 states have (on average 270.6666666666667) internal successors, (812), 2 states have internal predecessors, (812), 0 states have call successors, (0), 0 states 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 20:26:48,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:26:48,477 INFO L93 Difference]: Finished difference Result 4913 states and 9198 transitions. [2024-10-23 20:26:48,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:26:48,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 270.6666666666667) internal successors, (812), 2 states have internal predecessors, (812), 0 states have call successors, (0), 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 812 [2024-10-23 20:26:48,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:26:48,488 INFO L225 Difference]: With dead ends: 4913 [2024-10-23 20:26:48,488 INFO L226 Difference]: Without dead ends: 3275 [2024-10-23 20:26:48,491 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 20:26:48,493 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 979 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2282 mSolverCounterSat, 1142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 3424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1142 IncrementalHoareTripleChecker+Valid, 2282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-23 20:26:48,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [979 Valid, 250 Invalid, 3424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1142 Valid, 2282 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-23 20:26:48,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3275 states. [2024-10-23 20:26:48,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3275 to 3275. [2024-10-23 20:26:48,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3275 states, 3274 states have (on average 1.7684789248625534) internal successors, (5790), 3274 states have internal predecessors, (5790), 0 states have call successors, (0), 0 states 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 20:26:48,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3275 states to 3275 states and 5790 transitions. [2024-10-23 20:26:48,544 INFO L78 Accepts]: Start accepts. Automaton has 3275 states and 5790 transitions. Word has length 812 [2024-10-23 20:26:48,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:26:48,544 INFO L471 AbstractCegarLoop]: Abstraction has 3275 states and 5790 transitions. [2024-10-23 20:26:48,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 270.6666666666667) internal successors, (812), 2 states have internal predecessors, (812), 0 states have call successors, (0), 0 states 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 20:26:48,546 INFO L276 IsEmpty]: Start isEmpty. Operand 3275 states and 5790 transitions. [2024-10-23 20:26:48,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 828 [2024-10-23 20:26:48,553 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:26:48,553 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:26:48,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-23 20:26:48,553 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:26:48,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:26:48,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1658161178, now seen corresponding path program 1 times [2024-10-23 20:26:48,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:26:48,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841375545] [2024-10-23 20:26:48,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:26:48,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:26:48,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:26:49,039 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-23 20:26:49,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:26:49,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841375545] [2024-10-23 20:26:49,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841375545] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:26:49,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:26:49,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 20:26:49,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388460687] [2024-10-23 20:26:49,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:26:49,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:26:49,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:26:49,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:26:49,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:26:49,043 INFO L87 Difference]: Start difference. First operand 3275 states and 5790 transitions. Second operand has 3 states, 3 states have (on average 274.6666666666667) internal successors, (824), 2 states have internal predecessors, (824), 0 states have call successors, (0), 0 states 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 20:26:51,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:26:51,148 INFO L93 Difference]: Finished difference Result 9821 states and 17367 transitions. [2024-10-23 20:26:51,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:26:51,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 274.6666666666667) internal successors, (824), 2 states have internal predecessors, (824), 0 states have call successors, (0), 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 827 [2024-10-23 20:26:51,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:26:51,164 INFO L225 Difference]: With dead ends: 9821 [2024-10-23 20:26:51,164 INFO L226 Difference]: Without dead ends: 6547 [2024-10-23 20:26:51,166 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 20:26:51,167 INFO L432 NwaCegarLoop]: 465 mSDtfsCounter, 1004 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2081 mSolverCounterSat, 1077 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 3158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1077 IncrementalHoareTripleChecker+Valid, 2081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-23 20:26:51,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1004 Valid, 473 Invalid, 3158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1077 Valid, 2081 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-23 20:26:51,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6547 states. [2024-10-23 20:26:51,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6547 to 6547. [2024-10-23 20:26:51,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6547 states, 6546 states have (on average 1.5282615337610754) internal successors, (10004), 6546 states have internal predecessors, (10004), 0 states have call successors, (0), 0 states 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 20:26:51,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6547 states to 6547 states and 10004 transitions. [2024-10-23 20:26:51,244 INFO L78 Accepts]: Start accepts. Automaton has 6547 states and 10004 transitions. Word has length 827 [2024-10-23 20:26:51,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:26:51,244 INFO L471 AbstractCegarLoop]: Abstraction has 6547 states and 10004 transitions. [2024-10-23 20:26:51,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 274.6666666666667) internal successors, (824), 2 states have internal predecessors, (824), 0 states have call successors, (0), 0 states 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 20:26:51,245 INFO L276 IsEmpty]: Start isEmpty. Operand 6547 states and 10004 transitions. [2024-10-23 20:26:51,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 873 [2024-10-23 20:26:51,255 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:26:51,255 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:26:51,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-23 20:26:51,256 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:26:51,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:26:51,256 INFO L85 PathProgramCache]: Analyzing trace with hash 414606964, now seen corresponding path program 1 times [2024-10-23 20:26:51,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:26:51,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469072451] [2024-10-23 20:26:51,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:26:51,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:26:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:26:51,596 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-10-23 20:26:51,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:26:51,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469072451] [2024-10-23 20:26:51,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469072451] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:26:51,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:26:51,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 20:26:51,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605971783] [2024-10-23 20:26:51,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:26:51,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:26:51,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:26:51,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:26:51,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:26:51,599 INFO L87 Difference]: Start difference. First operand 6547 states and 10004 transitions. Second operand has 3 states, 3 states have (on average 275.0) internal successors, (825), 2 states have internal predecessors, (825), 0 states have call successors, (0), 0 states 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 20:26:53,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:26:53,817 INFO L93 Difference]: Finished difference Result 19637 states and 30009 transitions. [2024-10-23 20:26:53,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:26:53,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 275.0) internal successors, (825), 2 states have internal predecessors, (825), 0 states have call successors, (0), 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 872 [2024-10-23 20:26:53,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:26:53,855 INFO L225 Difference]: With dead ends: 19637 [2024-10-23 20:26:53,855 INFO L226 Difference]: Without dead ends: 13091 [2024-10-23 20:26:53,865 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 20:26:53,866 INFO L432 NwaCegarLoop]: 489 mSDtfsCounter, 1056 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2068 mSolverCounterSat, 1063 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 3131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1063 IncrementalHoareTripleChecker+Valid, 2068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-23 20:26:53,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1056 Valid, 496 Invalid, 3131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1063 Valid, 2068 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-23 20:26:53,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13091 states. [2024-10-23 20:26:54,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13091 to 13091. [2024-10-23 20:26:54,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13091 states, 13090 states have (on average 1.3679144385026738) internal successors, (17906), 13090 states have internal predecessors, (17906), 0 states have call successors, (0), 0 states 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 20:26:54,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13091 states to 13091 states and 17906 transitions. [2024-10-23 20:26:54,063 INFO L78 Accepts]: Start accepts. Automaton has 13091 states and 17906 transitions. Word has length 872 [2024-10-23 20:26:54,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:26:54,063 INFO L471 AbstractCegarLoop]: Abstraction has 13091 states and 17906 transitions. [2024-10-23 20:26:54,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 275.0) internal successors, (825), 2 states have internal predecessors, (825), 0 states have call successors, (0), 0 states 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 20:26:54,066 INFO L276 IsEmpty]: Start isEmpty. Operand 13091 states and 17906 transitions. [2024-10-23 20:26:54,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 951 [2024-10-23 20:26:54,089 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:26:54,089 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, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:26:54,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-23 20:26:54,090 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:26:54,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:26:54,091 INFO L85 PathProgramCache]: Analyzing trace with hash 608320538, now seen corresponding path program 1 times [2024-10-23 20:26:54,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:26:54,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539595954] [2024-10-23 20:26:54,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:26:54,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:26:54,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:26:54,602 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-10-23 20:26:54,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:26:54,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539595954] [2024-10-23 20:26:54,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539595954] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:26:54,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:26:54,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 20:26:54,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239130109] [2024-10-23 20:26:54,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:26:54,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:26:54,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:26:54,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:26:54,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:26:54,606 INFO L87 Difference]: Start difference. First operand 13091 states and 17906 transitions. Second operand has 3 states, 3 states have (on average 285.0) internal successors, (855), 2 states have internal predecessors, (855), 0 states have call successors, (0), 0 states 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 20:26:56,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:26:56,821 INFO L93 Difference]: Finished difference Result 38451 states and 52603 transitions. [2024-10-23 20:26:56,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:26:56,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 285.0) internal successors, (855), 2 states have internal predecessors, (855), 0 states have call successors, (0), 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 950 [2024-10-23 20:26:56,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:26:56,867 INFO L225 Difference]: With dead ends: 38451 [2024-10-23 20:26:56,868 INFO L226 Difference]: Without dead ends: 25361 [2024-10-23 20:26:56,883 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 20:26:56,884 INFO L432 NwaCegarLoop]: 308 mSDtfsCounter, 987 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2166 mSolverCounterSat, 1166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 3332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1166 IncrementalHoareTripleChecker+Valid, 2166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-23 20:26:56,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [987 Valid, 315 Invalid, 3332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1166 Valid, 2166 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-23 20:26:56,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25361 states. [2024-10-23 20:26:57,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25361 to 24543. [2024-10-23 20:26:57,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24543 states, 24542 states have (on average 1.2910113275201696) internal successors, (31684), 24542 states have internal predecessors, (31684), 0 states have call successors, (0), 0 states 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 20:26:57,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24543 states to 24543 states and 31684 transitions. [2024-10-23 20:26:57,147 INFO L78 Accepts]: Start accepts. Automaton has 24543 states and 31684 transitions. Word has length 950 [2024-10-23 20:26:57,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:26:57,148 INFO L471 AbstractCegarLoop]: Abstraction has 24543 states and 31684 transitions. [2024-10-23 20:26:57,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 285.0) internal successors, (855), 2 states have internal predecessors, (855), 0 states have call successors, (0), 0 states 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 20:26:57,149 INFO L276 IsEmpty]: Start isEmpty. Operand 24543 states and 31684 transitions. [2024-10-23 20:26:57,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1038 [2024-10-23 20:26:57,242 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:26:57,242 INFO L215 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:26:57,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-23 20:26:57,243 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:26:57,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:26:57,244 INFO L85 PathProgramCache]: Analyzing trace with hash 773058829, now seen corresponding path program 1 times [2024-10-23 20:26:57,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:26:57,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129867660] [2024-10-23 20:26:57,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:26:57,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:26:57,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:26:57,607 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-23 20:26:57,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:26:57,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129867660] [2024-10-23 20:26:57,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129867660] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:26:57,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:26:57,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 20:26:57,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249434849] [2024-10-23 20:26:57,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:26:57,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:26:57,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:26:57,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:26:57,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:26:57,610 INFO L87 Difference]: Start difference. First operand 24543 states and 31684 transitions. Second operand has 3 states, 3 states have (on average 341.3333333333333) internal successors, (1024), 2 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states 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 20:26:59,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:26:59,748 INFO L93 Difference]: Finished difference Result 71171 states and 91779 transitions. [2024-10-23 20:26:59,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:26:59,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 341.3333333333333) internal successors, (1024), 2 states have internal predecessors, (1024), 0 states have call successors, (0), 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 1037 [2024-10-23 20:26:59,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:26:59,812 INFO L225 Difference]: With dead ends: 71171 [2024-10-23 20:26:59,812 INFO L226 Difference]: Without dead ends: 46629 [2024-10-23 20:26:59,838 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 20:26:59,840 INFO L432 NwaCegarLoop]: 311 mSDtfsCounter, 749 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2282 mSolverCounterSat, 1078 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 3360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1078 IncrementalHoareTripleChecker+Valid, 2282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-23 20:26:59,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [749 Valid, 319 Invalid, 3360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1078 Valid, 2282 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-23 20:26:59,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46629 states. [2024-10-23 20:27:00,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46629 to 44175. [2024-10-23 20:27:00,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44175 states, 44174 states have (on average 1.2598813781862634) internal successors, (55654), 44174 states have internal predecessors, (55654), 0 states have call successors, (0), 0 states 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 20:27:00,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44175 states to 44175 states and 55654 transitions. [2024-10-23 20:27:00,267 INFO L78 Accepts]: Start accepts. Automaton has 44175 states and 55654 transitions. Word has length 1037 [2024-10-23 20:27:00,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:27:00,268 INFO L471 AbstractCegarLoop]: Abstraction has 44175 states and 55654 transitions. [2024-10-23 20:27:00,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 341.3333333333333) internal successors, (1024), 2 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states 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 20:27:00,268 INFO L276 IsEmpty]: Start isEmpty. Operand 44175 states and 55654 transitions. [2024-10-23 20:27:00,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1124 [2024-10-23 20:27:00,305 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:27:00,306 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:27:00,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-23 20:27:00,307 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:27:00,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:27:00,307 INFO L85 PathProgramCache]: Analyzing trace with hash 125000318, now seen corresponding path program 1 times [2024-10-23 20:27:00,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:27:00,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814457671] [2024-10-23 20:27:00,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:27:00,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:27:00,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:27:00,966 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-10-23 20:27:00,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:27:00,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814457671] [2024-10-23 20:27:00,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814457671] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:27:00,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:27:00,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 20:27:00,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264288623] [2024-10-23 20:27:00,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:27:00,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:27:00,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:27:00,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:27:00,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:27:00,972 INFO L87 Difference]: Start difference. First operand 44175 states and 55654 transitions. Second operand has 3 states, 3 states have (on average 297.6666666666667) internal successors, (893), 3 states have internal predecessors, (893), 0 states have call successors, (0), 0 states 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 20:27:03,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:27:03,420 INFO L93 Difference]: Finished difference Result 109617 states and 137627 transitions. [2024-10-23 20:27:03,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:27:03,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 297.6666666666667) internal successors, (893), 3 states have internal predecessors, (893), 0 states have call successors, (0), 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 1123 [2024-10-23 20:27:03,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:27:03,497 INFO L225 Difference]: With dead ends: 109617 [2024-10-23 20:27:03,497 INFO L226 Difference]: Without dead ends: 65443 [2024-10-23 20:27:03,534 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:27:03,534 INFO L432 NwaCegarLoop]: 1454 mSDtfsCounter, 763 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2370 mSolverCounterSat, 823 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 3193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 823 IncrementalHoareTripleChecker+Valid, 2370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-23 20:27:03,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [763 Valid, 1462 Invalid, 3193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [823 Valid, 2370 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-23 20:27:03,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65443 states. [2024-10-23 20:27:04,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65443 to 63807. [2024-10-23 20:27:04,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63807 states, 63806 states have (on average 1.2420775475660597) internal successors, (79252), 63806 states have internal predecessors, (79252), 0 states have call successors, (0), 0 states 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 20:27:04,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63807 states to 63807 states and 79252 transitions. [2024-10-23 20:27:04,224 INFO L78 Accepts]: Start accepts. Automaton has 63807 states and 79252 transitions. Word has length 1123 [2024-10-23 20:27:04,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:27:04,224 INFO L471 AbstractCegarLoop]: Abstraction has 63807 states and 79252 transitions. [2024-10-23 20:27:04,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 297.6666666666667) internal successors, (893), 3 states have internal predecessors, (893), 0 states have call successors, (0), 0 states 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 20:27:04,225 INFO L276 IsEmpty]: Start isEmpty. Operand 63807 states and 79252 transitions. [2024-10-23 20:27:04,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1161 [2024-10-23 20:27:04,264 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:27:04,265 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:27:04,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-23 20:27:04,265 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:27:04,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:27:04,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1857300331, now seen corresponding path program 1 times [2024-10-23 20:27:04,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:27:04,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864662061] [2024-10-23 20:27:04,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:27:04,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:27:04,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:27:05,202 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 343 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-10-23 20:27:05,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:27:05,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864662061] [2024-10-23 20:27:05,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864662061] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:27:05,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:27:05,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 20:27:05,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233017921] [2024-10-23 20:27:05,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:27:05,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:27:05,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:27:05,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:27:05,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:27:05,206 INFO L87 Difference]: Start difference. First operand 63807 states and 79252 transitions. Second operand has 3 states, 3 states have (on average 310.0) internal successors, (930), 2 states have internal predecessors, (930), 0 states have call successors, (0), 0 states 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 20:27:07,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:27:07,335 INFO L93 Difference]: Finished difference Result 131703 states and 162881 transitions. [2024-10-23 20:27:07,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:27:07,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 310.0) internal successors, (930), 2 states have internal predecessors, (930), 0 states have call successors, (0), 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 1160 [2024-10-23 20:27:07,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:27:07,413 INFO L225 Difference]: With dead ends: 131703 [2024-10-23 20:27:07,413 INFO L226 Difference]: Without dead ends: 67897 [2024-10-23 20:27:07,447 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 20:27:07,450 INFO L432 NwaCegarLoop]: 587 mSDtfsCounter, 709 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2186 mSolverCounterSat, 749 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 2935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 749 IncrementalHoareTripleChecker+Valid, 2186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-23 20:27:07,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 595 Invalid, 2935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [749 Valid, 2186 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-23 20:27:07,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67897 states. [2024-10-23 20:27:07,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67897 to 67897. [2024-10-23 20:27:07,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67897 states, 67896 states have (on average 1.2249322493224932) internal successors, (83168), 67896 states have internal predecessors, (83168), 0 states have call successors, (0), 0 states 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 20:27:08,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67897 states to 67897 states and 83168 transitions. [2024-10-23 20:27:08,289 INFO L78 Accepts]: Start accepts. Automaton has 67897 states and 83168 transitions. Word has length 1160 [2024-10-23 20:27:08,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:27:08,290 INFO L471 AbstractCegarLoop]: Abstraction has 67897 states and 83168 transitions. [2024-10-23 20:27:08,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 310.0) internal successors, (930), 2 states have internal predecessors, (930), 0 states have call successors, (0), 0 states 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 20:27:08,290 INFO L276 IsEmpty]: Start isEmpty. Operand 67897 states and 83168 transitions. [2024-10-23 20:27:08,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1176 [2024-10-23 20:27:08,351 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:27:08,352 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:27:08,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-23 20:27:08,352 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:27:08,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:27:08,353 INFO L85 PathProgramCache]: Analyzing trace with hash 113972732, now seen corresponding path program 1 times [2024-10-23 20:27:08,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:27:08,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907922261] [2024-10-23 20:27:08,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:27:08,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:27:08,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:27:09,186 INFO L134 CoverageAnalysis]: Checked inductivity of 738 backedges. 596 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-10-23 20:27:09,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:27:09,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907922261] [2024-10-23 20:27:09,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907922261] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:27:09,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:27:09,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 20:27:09,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123539038] [2024-10-23 20:27:09,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:27:09,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:27:09,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:27:09,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:27:09,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:27:09,189 INFO L87 Difference]: Start difference. First operand 67897 states and 83168 transitions. Second operand has 3 states, 3 states have (on average 345.0) internal successors, (1035), 3 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states 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 20:27:11,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:27:11,433 INFO L93 Difference]: Finished difference Result 158697 states and 194024 transitions. [2024-10-23 20:27:11,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:27:11,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 345.0) internal successors, (1035), 3 states have internal predecessors, (1035), 0 states have call successors, (0), 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 1175 [2024-10-23 20:27:11,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:27:11,530 INFO L225 Difference]: With dead ends: 158697 [2024-10-23 20:27:11,530 INFO L226 Difference]: Without dead ends: 90801 [2024-10-23 20:27:11,574 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 20:27:11,575 INFO L432 NwaCegarLoop]: 1425 mSDtfsCounter, 801 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2104 mSolverCounterSat, 898 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 1433 SdHoareTripleChecker+Invalid, 3002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 898 IncrementalHoareTripleChecker+Valid, 2104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-23 20:27:11,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 1433 Invalid, 3002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [898 Valid, 2104 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-23 20:27:11,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90801 states. [2024-10-23 20:27:12,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90801 to 85075. [2024-10-23 20:27:12,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85075 states, 85074 states have (on average 1.200025859839669) internal successors, (102091), 85074 states have internal predecessors, (102091), 0 states have call successors, (0), 0 states 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 20:27:12,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85075 states to 85075 states and 102091 transitions. [2024-10-23 20:27:12,684 INFO L78 Accepts]: Start accepts. Automaton has 85075 states and 102091 transitions. Word has length 1175 [2024-10-23 20:27:12,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:27:12,684 INFO L471 AbstractCegarLoop]: Abstraction has 85075 states and 102091 transitions. [2024-10-23 20:27:12,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 345.0) internal successors, (1035), 3 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states 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 20:27:12,684 INFO L276 IsEmpty]: Start isEmpty. Operand 85075 states and 102091 transitions. [2024-10-23 20:27:12,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1236 [2024-10-23 20:27:12,753 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:27:12,753 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:27:12,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-23 20:27:12,754 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:27:12,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:27:12,754 INFO L85 PathProgramCache]: Analyzing trace with hash 234993872, now seen corresponding path program 1 times [2024-10-23 20:27:12,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:27:12,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532532923] [2024-10-23 20:27:12,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:27:12,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:27:13,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:27:14,287 INFO L134 CoverageAnalysis]: Checked inductivity of 940 backedges. 585 proven. 0 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2024-10-23 20:27:14,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:27:14,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532532923] [2024-10-23 20:27:14,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532532923] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:27:14,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:27:14,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 20:27:14,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889771725] [2024-10-23 20:27:14,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:27:14,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:27:14,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:27:14,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:27:14,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:27:14,290 INFO L87 Difference]: Start difference. First operand 85075 states and 102091 transitions. Second operand has 3 states, 3 states have (on average 334.0) internal successors, (1002), 3 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states 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 20:27:16,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:27:16,340 INFO L93 Difference]: Finished difference Result 170967 states and 205017 transitions. [2024-10-23 20:27:16,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:27:16,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 334.0) internal successors, (1002), 3 states have internal predecessors, (1002), 0 states have call successors, (0), 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 1235 [2024-10-23 20:27:16,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:27:16,435 INFO L225 Difference]: With dead ends: 170967 [2024-10-23 20:27:16,436 INFO L226 Difference]: Without dead ends: 85893 [2024-10-23 20:27:16,451 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 20:27:16,451 INFO L432 NwaCegarLoop]: 1575 mSDtfsCounter, 773 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1927 mSolverCounterSat, 543 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 1583 SdHoareTripleChecker+Invalid, 2470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 543 IncrementalHoareTripleChecker+Valid, 1927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-23 20:27:16,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 1583 Invalid, 2470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [543 Valid, 1927 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-23 20:27:16,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85893 states. [2024-10-23 20:27:17,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85893 to 85075. [2024-10-23 20:27:17,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85075 states, 85074 states have (on average 1.1990384841432165) internal successors, (102007), 85074 states have internal predecessors, (102007), 0 states have call successors, (0), 0 states 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 20:27:17,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85075 states to 85075 states and 102007 transitions. [2024-10-23 20:27:17,386 INFO L78 Accepts]: Start accepts. Automaton has 85075 states and 102007 transitions. Word has length 1235 [2024-10-23 20:27:17,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:27:17,387 INFO L471 AbstractCegarLoop]: Abstraction has 85075 states and 102007 transitions. [2024-10-23 20:27:17,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 334.0) internal successors, (1002), 3 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states 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 20:27:17,387 INFO L276 IsEmpty]: Start isEmpty. Operand 85075 states and 102007 transitions. [2024-10-23 20:27:17,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1335 [2024-10-23 20:27:17,461 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:27:17,461 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:27:17,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-23 20:27:17,462 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:27:17,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:27:17,462 INFO L85 PathProgramCache]: Analyzing trace with hash 820782864, now seen corresponding path program 1 times [2024-10-23 20:27:17,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:27:17,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390243913] [2024-10-23 20:27:17,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:27:17,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:27:17,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:27:18,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1466 backedges. 974 proven. 0 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2024-10-23 20:27:18,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:27:18,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390243913] [2024-10-23 20:27:18,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390243913] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:27:18,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:27:18,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 20:27:18,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540942044] [2024-10-23 20:27:18,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:27:18,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:27:18,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:27:18,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:27:18,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:27:18,716 INFO L87 Difference]: Start difference. First operand 85075 states and 102007 transitions. Second operand has 3 states, 3 states have (on average 326.6666666666667) internal successors, (980), 3 states have internal predecessors, (980), 0 states have call successors, (0), 0 states 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 20:27:20,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:27:20,757 INFO L93 Difference]: Finished difference Result 171785 states and 205697 transitions. [2024-10-23 20:27:20,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:27:20,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 326.6666666666667) internal successors, (980), 3 states have internal predecessors, (980), 0 states have call successors, (0), 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 1334 [2024-10-23 20:27:20,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:27:20,854 INFO L225 Difference]: With dead ends: 171785 [2024-10-23 20:27:20,855 INFO L226 Difference]: Without dead ends: 86711 [2024-10-23 20:27:20,891 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 20:27:20,892 INFO L432 NwaCegarLoop]: 647 mSDtfsCounter, 813 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2020 mSolverCounterSat, 601 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 2621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 601 IncrementalHoareTripleChecker+Valid, 2020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-23 20:27:20,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 655 Invalid, 2621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [601 Valid, 2020 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-23 20:27:20,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86711 states. [2024-10-23 20:27:21,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86711 to 85893. [2024-10-23 20:27:21,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85893 states, 85892 states have (on average 1.1935104549899875) internal successors, (102513), 85892 states have internal predecessors, (102513), 0 states have call successors, (0), 0 states 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 20:27:21,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85893 states to 85893 states and 102513 transitions. [2024-10-23 20:27:21,871 INFO L78 Accepts]: Start accepts. Automaton has 85893 states and 102513 transitions. Word has length 1334 [2024-10-23 20:27:21,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:27:21,871 INFO L471 AbstractCegarLoop]: Abstraction has 85893 states and 102513 transitions. [2024-10-23 20:27:21,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 326.6666666666667) internal successors, (980), 3 states have internal predecessors, (980), 0 states have call successors, (0), 0 states 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 20:27:21,872 INFO L276 IsEmpty]: Start isEmpty. Operand 85893 states and 102513 transitions. [2024-10-23 20:27:21,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1392 [2024-10-23 20:27:21,951 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:27:21,952 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:27:21,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-23 20:27:21,952 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:27:21,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:27:21,953 INFO L85 PathProgramCache]: Analyzing trace with hash 199687233, now seen corresponding path program 1 times [2024-10-23 20:27:21,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:27:21,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471326999] [2024-10-23 20:27:21,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:27:21,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:27:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:27:23,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1037 backedges. 818 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2024-10-23 20:27:23,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:27:23,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471326999] [2024-10-23 20:27:23,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471326999] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:27:23,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:27:23,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 20:27:23,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269635148] [2024-10-23 20:27:23,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:27:23,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:27:23,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:27:23,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:27:23,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:27:23,044 INFO L87 Difference]: Start difference. First operand 85893 states and 102513 transitions. Second operand has 3 states, 3 states have (on average 391.3333333333333) internal successors, (1174), 3 states have internal predecessors, (1174), 0 states have call successors, (0), 0 states 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 20:27:25,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:27:25,324 INFO L93 Difference]: Finished difference Result 188963 states and 226339 transitions. [2024-10-23 20:27:25,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:27:25,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 391.3333333333333) internal successors, (1174), 3 states have internal predecessors, (1174), 0 states have call successors, (0), 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 1391 [2024-10-23 20:27:25,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:27:25,431 INFO L225 Difference]: With dead ends: 188963 [2024-10-23 20:27:25,432 INFO L226 Difference]: Without dead ends: 103071 [2024-10-23 20:27:25,473 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 20:27:25,473 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 935 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2250 mSolverCounterSat, 1020 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 3270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1020 IncrementalHoareTripleChecker+Valid, 2250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-23 20:27:25,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 310 Invalid, 3270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1020 Valid, 2250 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-23 20:27:25,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103071 states. [2024-10-23 20:27:26,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103071 to 103071. [2024-10-23 20:27:26,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103071 states, 103070 states have (on average 1.1708256524691958) internal successors, (120677), 103070 states have internal predecessors, (120677), 0 states have call successors, (0), 0 states 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 20:27:26,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103071 states to 103071 states and 120677 transitions. [2024-10-23 20:27:26,747 INFO L78 Accepts]: Start accepts. Automaton has 103071 states and 120677 transitions. Word has length 1391 [2024-10-23 20:27:26,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:27:26,748 INFO L471 AbstractCegarLoop]: Abstraction has 103071 states and 120677 transitions. [2024-10-23 20:27:26,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 391.3333333333333) internal successors, (1174), 3 states have internal predecessors, (1174), 0 states have call successors, (0), 0 states 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 20:27:26,748 INFO L276 IsEmpty]: Start isEmpty. Operand 103071 states and 120677 transitions. [2024-10-23 20:27:26,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1413 [2024-10-23 20:27:26,837 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:27:26,837 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:27:26,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-23 20:27:26,838 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:27:26,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:27:26,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1750262278, now seen corresponding path program 1 times [2024-10-23 20:27:26,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:27:26,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730227897] [2024-10-23 20:27:26,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:27:26,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:27:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:27:28,230 INFO L134 CoverageAnalysis]: Checked inductivity of 1223 backedges. 600 proven. 0 refuted. 0 times theorem prover too weak. 623 trivial. 0 not checked. [2024-10-23 20:27:28,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:27:28,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730227897] [2024-10-23 20:27:28,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730227897] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:27:28,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:27:28,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 20:27:28,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044637230] [2024-10-23 20:27:28,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:27:28,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:27:28,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:27:28,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:27:28,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:27:28,233 INFO L87 Difference]: Start difference. First operand 103071 states and 120677 transitions. Second operand has 3 states, 3 states have (on average 345.3333333333333) internal successors, (1036), 2 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states 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 20:27:30,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:27:30,471 INFO L93 Difference]: Finished difference Result 209413 states and 244769 transitions. [2024-10-23 20:27:30,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:27:30,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 345.3333333333333) internal successors, (1036), 2 states have internal predecessors, (1036), 0 states have call successors, (0), 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 1412 [2024-10-23 20:27:30,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:27:30,592 INFO L225 Difference]: With dead ends: 209413 [2024-10-23 20:27:30,592 INFO L226 Difference]: Without dead ends: 106343 [2024-10-23 20:27:30,656 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 20:27:30,656 INFO L432 NwaCegarLoop]: 575 mSDtfsCounter, 616 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2193 mSolverCounterSat, 803 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 2996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 803 IncrementalHoareTripleChecker+Valid, 2193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-23 20:27:30,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 583 Invalid, 2996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [803 Valid, 2193 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-23 20:27:30,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106343 states. [2024-10-23 20:27:31,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106343 to 103889. [2024-10-23 20:27:31,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103889 states, 103888 states have (on average 1.1620880178653934) internal successors, (120727), 103888 states have internal predecessors, (120727), 0 states have call successors, (0), 0 states 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 20:27:31,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103889 states to 103889 states and 120727 transitions. [2024-10-23 20:27:31,922 INFO L78 Accepts]: Start accepts. Automaton has 103889 states and 120727 transitions. Word has length 1412 [2024-10-23 20:27:31,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:27:31,922 INFO L471 AbstractCegarLoop]: Abstraction has 103889 states and 120727 transitions. [2024-10-23 20:27:31,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 345.3333333333333) internal successors, (1036), 2 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states 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 20:27:31,922 INFO L276 IsEmpty]: Start isEmpty. Operand 103889 states and 120727 transitions. [2024-10-23 20:27:32,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1435 [2024-10-23 20:27:32,008 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:27:32,009 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:27:32,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-23 20:27:32,009 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:27:32,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:27:32,010 INFO L85 PathProgramCache]: Analyzing trace with hash -355123507, now seen corresponding path program 1 times [2024-10-23 20:27:32,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:27:32,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267140230] [2024-10-23 20:27:32,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:27:32,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:27:32,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:27:33,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 1036 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2024-10-23 20:27:33,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:27:33,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267140230] [2024-10-23 20:27:33,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267140230] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:27:33,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:27:33,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 20:27:33,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480948934] [2024-10-23 20:27:33,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:27:33,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:27:33,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:27:33,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:27:33,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:27:33,235 INFO L87 Difference]: Start difference. First operand 103889 states and 120727 transitions. Second operand has 3 states, 3 states have (on average 380.3333333333333) internal successors, (1141), 3 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states 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 20:27:35,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:27:35,537 INFO L93 Difference]: Finished difference Result 207777 states and 241453 transitions. [2024-10-23 20:27:35,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:27:35,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 380.3333333333333) internal successors, (1141), 3 states have internal predecessors, (1141), 0 states have call successors, (0), 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 1434 [2024-10-23 20:27:35,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:27:35,643 INFO L225 Difference]: With dead ends: 207777 [2024-10-23 20:27:35,643 INFO L226 Difference]: Without dead ends: 103889 [2024-10-23 20:27:35,663 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 20:27:35,663 INFO L432 NwaCegarLoop]: 1360 mSDtfsCounter, 742 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2629 mSolverCounterSat, 502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 1368 SdHoareTripleChecker+Invalid, 3131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 2629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-23 20:27:35,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 1368 Invalid, 3131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 2629 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-23 20:27:35,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103889 states. [2024-10-23 20:27:36,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103889 to 103889. [2024-10-23 20:27:36,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103889 states, 103888 states have (on average 1.128609656553211) internal successors, (117249), 103888 states have internal predecessors, (117249), 0 states have call successors, (0), 0 states 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 20:27:36,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103889 states to 103889 states and 117249 transitions. [2024-10-23 20:27:36,790 INFO L78 Accepts]: Start accepts. Automaton has 103889 states and 117249 transitions. Word has length 1434 [2024-10-23 20:27:36,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:27:36,790 INFO L471 AbstractCegarLoop]: Abstraction has 103889 states and 117249 transitions. [2024-10-23 20:27:36,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 380.3333333333333) internal successors, (1141), 3 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states 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 20:27:36,791 INFO L276 IsEmpty]: Start isEmpty. Operand 103889 states and 117249 transitions. [2024-10-23 20:27:36,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1555 [2024-10-23 20:27:36,889 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:27:36,889 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-23 20:27:36,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-23 20:27:36,889 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:27:36,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:27:36,890 INFO L85 PathProgramCache]: Analyzing trace with hash -59533178, now seen corresponding path program 1 times [2024-10-23 20:27:36,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:27:36,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693499902] [2024-10-23 20:27:36,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:27:36,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:27:37,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:27:40,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 561 proven. 450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 20:27:40,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:27:40,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693499902] [2024-10-23 20:27:40,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693499902] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 20:27:40,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382348211] [2024-10-23 20:27:40,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:27:40,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 20:27:40,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 20:27:40,313 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 20:27:40,314 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 20:27:40,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:27:40,671 INFO L255 TraceCheckSpWp]: Trace formula consists of 1759 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-23 20:27:40,698 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 20:27:42,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1011 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1011 trivial. 0 not checked. [2024-10-23 20:27:42,085 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 20:27:42,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [382348211] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:27:42,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-23 20:27:42,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2024-10-23 20:27:42,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485120836] [2024-10-23 20:27:42,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:27:42,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:27:42,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:27:42,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:27:42,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-23 20:27:42,088 INFO L87 Difference]: Start difference. First operand 103889 states and 117249 transitions. Second operand has 3 states, 3 states have (on average 271.0) internal successors, (813), 2 states have internal predecessors, (813), 0 states have call successors, (0), 0 states 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 20:27:44,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:27:44,236 INFO L93 Difference]: Finished difference Result 233951 states and 263282 transitions. [2024-10-23 20:27:44,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:27:44,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 271.0) internal successors, (813), 2 states have internal predecessors, (813), 0 states have call successors, (0), 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 1554 [2024-10-23 20:27:44,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:27:44,238 INFO L225 Difference]: With dead ends: 233951 [2024-10-23 20:27:44,238 INFO L226 Difference]: Without dead ends: 0 [2024-10-23 20:27:44,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1559 GetRequests, 1553 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-23 20:27:44,313 INFO L432 NwaCegarLoop]: 315 mSDtfsCounter, 86 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2879 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 3183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 2879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-23 20:27:44,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 322 Invalid, 3183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [304 Valid, 2879 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-23 20:27:44,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-23 20:27:44,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-23 20:27:44,314 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 20:27:44,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-23 20:27:44,314 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1554 [2024-10-23 20:27:44,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:27:44,314 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-23 20:27:44,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.0) internal successors, (813), 2 states have internal predecessors, (813), 0 states have call successors, (0), 0 states 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 20:27:44,315 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-23 20:27:44,315 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-23 20:27:44,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-23 20:27:44,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-23 20:27:44,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-23 20:27:44,520 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:27:44,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-23 20:27:47,347 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-23 20:27:47,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:27:47 BoogieIcfgContainer [2024-10-23 20:27:47,367 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-23 20:27:47,367 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-23 20:27:47,368 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-23 20:27:47,368 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-23 20:27:47,368 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:26:40" (3/4) ... [2024-10-23 20:27:47,369 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-23 20:27:47,414 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-10-23 20:27:47,419 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-23 20:27:47,423 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-23 20:27:47,429 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-23 20:27:47,740 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-23 20:27:47,741 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-23 20:27:47,741 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-23 20:27:47,742 INFO L158 Benchmark]: Toolchain (without parser) took 72246.76ms. Allocated memory was 172.0MB in the beginning and 11.9GB in the end (delta: 11.7GB). Free memory was 121.5MB in the beginning and 6.7GB in the end (delta: -6.6GB). Peak memory consumption was 5.1GB. Max. memory is 16.1GB. [2024-10-23 20:27:47,742 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 117.4MB. Free memory is still 89.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-23 20:27:47,743 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1173.69ms. Allocated memory is still 172.0MB. Free memory was 121.5MB in the beginning and 101.6MB in the end (delta: 19.9MB). Peak memory consumption was 110.1MB. Max. memory is 16.1GB. [2024-10-23 20:27:47,743 INFO L158 Benchmark]: Boogie Procedure Inliner took 144.24ms. Allocated memory is still 172.0MB. Free memory was 101.6MB in the beginning and 62.9MB in the end (delta: 38.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-10-23 20:27:47,744 INFO L158 Benchmark]: Boogie Preprocessor took 285.66ms. Allocated memory was 172.0MB in the beginning and 239.1MB in the end (delta: 67.1MB). Free memory was 62.9MB in the beginning and 144.7MB in the end (delta: -81.9MB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. [2024-10-23 20:27:47,744 INFO L158 Benchmark]: RCFGBuilder took 3348.29ms. Allocated memory was 239.1MB in the beginning and 503.3MB in the end (delta: 264.2MB). Free memory was 144.7MB in the beginning and 300.6MB in the end (delta: -155.8MB). Peak memory consumption was 182.5MB. Max. memory is 16.1GB. [2024-10-23 20:27:47,744 INFO L158 Benchmark]: TraceAbstraction took 66914.18ms. Allocated memory was 503.3MB in the beginning and 11.9GB in the end (delta: 11.4GB). Free memory was 299.5MB in the beginning and 6.8GB in the end (delta: -6.5GB). Peak memory consumption was 4.9GB. Max. memory is 16.1GB. [2024-10-23 20:27:47,745 INFO L158 Benchmark]: Witness Printer took 374.00ms. Allocated memory is still 11.9GB. Free memory was 6.8GB in the beginning and 6.7GB in the end (delta: 78.6MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. [2024-10-23 20:27:47,748 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 117.4MB. Free memory is still 89.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1173.69ms. Allocated memory is still 172.0MB. Free memory was 121.5MB in the beginning and 101.6MB in the end (delta: 19.9MB). Peak memory consumption was 110.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 144.24ms. Allocated memory is still 172.0MB. Free memory was 101.6MB in the beginning and 62.9MB in the end (delta: 38.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 285.66ms. Allocated memory was 172.0MB in the beginning and 239.1MB in the end (delta: 67.1MB). Free memory was 62.9MB in the beginning and 144.7MB in the end (delta: -81.9MB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3348.29ms. Allocated memory was 239.1MB in the beginning and 503.3MB in the end (delta: 264.2MB). Free memory was 144.7MB in the beginning and 300.6MB in the end (delta: -155.8MB). Peak memory consumption was 182.5MB. Max. memory is 16.1GB. * TraceAbstraction took 66914.18ms. Allocated memory was 503.3MB in the beginning and 11.9GB in the end (delta: 11.4GB). Free memory was 299.5MB in the beginning and 6.8GB in the end (delta: -6.5GB). Peak memory consumption was 4.9GB. Max. memory is 16.1GB. * Witness Printer took 374.00ms. Allocated memory is still 11.9GB. Free memory was 6.8GB in the beginning and 6.7GB in the end (delta: 78.6MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 4791]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 823 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 64.0s, OverallIterations: 16, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.8s, AutomataDifference: 35.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11097 SdHoareTripleChecker+Valid, 29.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11097 mSDsluCounter, 11824 SdHoareTripleChecker+Invalid, 24.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 115 mSDsCounter, 13067 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33809 IncrementalHoareTripleChecker+Invalid, 46876 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13067 mSolverCounterUnsat, 11709 mSDtfsCounter, 33809 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1595 GetRequests, 1575 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103889occurred in iteration=14, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 9.3s AutomataMinimizationTime, 16 MinimizatonAttempts, 14724 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 14.1s InterpolantComputationTime, 19484 NumberOfCodeBlocks, 19484 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 19467 ConstructedInterpolants, 0 QuantifiedInterpolants, 55995 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1759 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 17 InterpolantComputations, 16 PerfectInterpolantSequences, 10219/10669 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 4826]: Loop Invariant Derived loop invariant: ((((((((((((((((a14 <= 19) && (a28 <= 15)) || (((a14 <= 19) && (17 <= a4)) && (a3 == 1))) || ((a14 == 20) && (a28 <= 15))) || (a14 == 18)) || (((a14 == 20) && (a4 <= 17)) && (a26 <= 18))) || (((a14 <= 19) && (a28 <= 16)) && (a7 == 1))) || (((a14 <= 19) && (a7 == 1)) && (a26 <= 18))) || ((a14 == 20) && (a3 == 1))) || (((a14 == 20) && (a4 <= 17)) && (a7 == 1))) || (((a14 <= 19) && (a3 == 1)) && (a7 == 1))) || (((((a26 <= 17) && (a3 == 1)) && (a7 == 1)) && (a28 <= 15)) && (a4 == 17))) || (((a4 <= 17) && (a14 <= 19)) && (a26 <= 18))) || (((a14 == 20) && (17 <= a4)) && (a28 <= 16))) || (((a14 <= 19) && (a28 <= 16)) && (a26 <= 18))) || ((a14 <= 19) && (a4 == 17))) RESULT: Ultimate proved your program to be correct! [2024-10-23 20:27:47,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE