./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_label19.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem04_label19.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 621b76d45e71b900ed4790a963135fd5d1534c3ea1a3881cac0c7af3a95c6bc9 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-13 22:50:54,039 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 22:50:54,090 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-13 22:50:54,095 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 22:50:54,096 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 22:50:54,122 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 22:50:54,123 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 22:50:54,123 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 22:50:54,123 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 22:50:54,125 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 22:50:54,125 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 22:50:54,125 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 22:50:54,125 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 22:50:54,125 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 22:50:54,126 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 22:50:54,126 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 22:50:54,126 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 22:50:54,126 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 22:50:54,126 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 22:50:54,126 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 22:50:54,127 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 22:50:54,130 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 22:50:54,130 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 22:50:54,130 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 22:50:54,130 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 22:50:54,130 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 22:50:54,130 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 22:50:54,131 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 22:50:54,131 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 22:50:54,131 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 22:50:54,131 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 22:50:54,131 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 22:50:54,131 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 22:50:54,131 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 22:50:54,132 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 22:50:54,132 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 22:50:54,132 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 22:50:54,132 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 22:50:54,132 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 22:50:54,132 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 22:50:54,132 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 22:50:54,133 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 22:50:54,133 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 621b76d45e71b900ed4790a963135fd5d1534c3ea1a3881cac0c7af3a95c6bc9 [2024-10-13 22:50:54,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 22:50:54,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 22:50:54,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 22:50:54,354 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 22:50:54,355 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 22:50:54,355 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem04_label19.c [2024-10-13 22:50:55,522 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 22:50:55,825 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 22:50:55,826 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem04_label19.c [2024-10-13 22:50:55,855 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaa8db4d6/4d8b5a3769114adc96caeaa8719247e1/FLAG6447bce9c [2024-10-13 22:50:56,075 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaa8db4d6/4d8b5a3769114adc96caeaa8719247e1 [2024-10-13 22:50:56,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 22:50:56,078 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 22:50:56,079 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 22:50:56,079 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 22:50:56,083 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 22:50:56,083 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:50:56" (1/1) ... [2024-10-13 22:50:56,084 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d096c74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:56, skipping insertion in model container [2024-10-13 22:50:56,084 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:50:56" (1/1) ... [2024-10-13 22:50:56,166 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 22:50:56,883 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_label19.c[176505,176518] [2024-10-13 22:50:56,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 22:50:56,910 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 22:50:57,220 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_label19.c[176505,176518] [2024-10-13 22:50:57,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 22:50:57,257 INFO L204 MainTranslator]: Completed translation [2024-10-13 22:50:57,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:57 WrapperNode [2024-10-13 22:50:57,257 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 22:50:57,258 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 22:50:57,258 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 22:50:57,258 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 22:50:57,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:57" (1/1) ... [2024-10-13 22:50:57,300 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:57" (1/1) ... [2024-10-13 22:50:57,418 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5576 [2024-10-13 22:50:57,419 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 22:50:57,420 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 22:50:57,420 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 22:50:57,420 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 22:50:57,428 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:57" (1/1) ... [2024-10-13 22:50:57,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:57" (1/1) ... [2024-10-13 22:50:57,494 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:57" (1/1) ... [2024-10-13 22:50:57,542 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]. [2024-10-13 22:50:57,542 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:57" (1/1) ... [2024-10-13 22:50:57,542 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:57" (1/1) ... [2024-10-13 22:50:57,615 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:57" (1/1) ... [2024-10-13 22:50:57,637 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:57" (1/1) ... [2024-10-13 22:50:57,648 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:57" (1/1) ... [2024-10-13 22:50:57,659 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:57" (1/1) ... [2024-10-13 22:50:57,676 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 22:50:57,677 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 22:50:57,677 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 22:50:57,678 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 22:50:57,679 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:57" (1/1) ... [2024-10-13 22:50:57,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 22:50:57,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 22:50:57,706 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) [2024-10-13 22:50:57,707 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 [2024-10-13 22:50:57,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 22:50:57,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 22:50:57,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 22:50:57,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 22:50:57,825 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 22:50:57,827 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 22:51:01,030 INFO L? ?]: Removed 768 outVars from TransFormulas that were not future-live. [2024-10-13 22:51:01,030 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 22:51:01,082 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 22:51:01,084 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 22:51:01,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:51:01 BoogieIcfgContainer [2024-10-13 22:51:01,085 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 22:51:01,086 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 22:51:01,086 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 22:51:01,088 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 22:51:01,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:50:56" (1/3) ... [2024-10-13 22:51:01,089 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5490f182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:51:01, skipping insertion in model container [2024-10-13 22:51:01,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:50:57" (2/3) ... [2024-10-13 22:51:01,089 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5490f182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:51:01, skipping insertion in model container [2024-10-13 22:51:01,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:51:01" (3/3) ... [2024-10-13 22:51:01,090 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem04_label19.c [2024-10-13 22:51:01,102 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 22:51:01,102 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 22:51:01,175 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 22:51:01,179 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;@63364f32, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 22:51:01,179 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 22:51:01,185 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) [2024-10-13 22:51:01,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 757 [2024-10-13 22:51:01,209 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:51:01,210 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] [2024-10-13 22:51:01,211 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:51:01,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:51:01,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1414999568, now seen corresponding path program 1 times [2024-10-13 22:51:01,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:51:01,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440003098] [2024-10-13 22:51:01,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:51:01,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:51:01,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:51:02,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 22:51:02,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:51:02,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440003098] [2024-10-13 22:51:02,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440003098] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 22:51:02,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 22:51:02,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 22:51:02,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641508923] [2024-10-13 22:51:02,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 22:51:02,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 22:51:02,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:51:02,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 22:51:02,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 22:51:02,608 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 3 states, 3 states have (on average 252.0) internal successors, (756), 2 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:05,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:51:05,283 INFO L93 Difference]: Finished difference Result 2465 states and 4904 transitions. [2024-10-13 22:51:05,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 22:51:05,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 252.0) internal successors, (756), 2 states have internal predecessors, (756), 0 states have call successors, (0), 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 756 [2024-10-13 22:51:05,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:51:05,305 INFO L225 Difference]: With dead ends: 2465 [2024-10-13 22:51:05,305 INFO L226 Difference]: Without dead ends: 1639 [2024-10-13 22:51:05,310 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 [2024-10-13 22:51:05,313 INFO L432 NwaCegarLoop]: 466 mSDtfsCounter, 268 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2083 mSolverCounterSat, 1077 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 3160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1077 IncrementalHoareTripleChecker+Valid, 2083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-13 22:51:05,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 475 Invalid, 3160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1077 Valid, 2083 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-13 22:51:05,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2024-10-13 22:51:05,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1639. [2024-10-13 22:51:05,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1639 states, 1638 states have (on average 1.637973137973138) internal successors, (2683), 1638 states have internal predecessors, (2683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:05,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1639 states to 1639 states and 2683 transitions. [2024-10-13 22:51:05,406 INFO L78 Accepts]: Start accepts. Automaton has 1639 states and 2683 transitions. Word has length 756 [2024-10-13 22:51:05,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:51:05,408 INFO L471 AbstractCegarLoop]: Abstraction has 1639 states and 2683 transitions. [2024-10-13 22:51:05,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 252.0) internal successors, (756), 2 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:05,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1639 states and 2683 transitions. [2024-10-13 22:51:05,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 768 [2024-10-13 22:51:05,426 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:51:05,426 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-13 22:51:05,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 22:51:05,427 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:51:05,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:51:05,428 INFO L85 PathProgramCache]: Analyzing trace with hash -894033235, now seen corresponding path program 1 times [2024-10-13 22:51:05,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:51:05,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364538198] [2024-10-13 22:51:05,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:51:05,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:51:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:51:05,947 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 22:51:05,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:51:05,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364538198] [2024-10-13 22:51:05,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364538198] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 22:51:05,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 22:51:05,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 22:51:05,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562424926] [2024-10-13 22:51:05,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 22:51:05,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 22:51:05,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:51:05,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 22:51:05,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 22:51:05,953 INFO L87 Difference]: Start difference. First operand 1639 states and 2683 transitions. Second operand has 3 states, 3 states have (on average 255.66666666666666) internal successors, (767), 2 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:08,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:51:08,402 INFO L93 Difference]: Finished difference Result 4913 states and 8046 transitions. [2024-10-13 22:51:08,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 22:51:08,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 255.66666666666666) internal successors, (767), 2 states have internal predecessors, (767), 0 states have call successors, (0), 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 767 [2024-10-13 22:51:08,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:51:08,413 INFO L225 Difference]: With dead ends: 4913 [2024-10-13 22:51:08,413 INFO L226 Difference]: Without dead ends: 3275 [2024-10-13 22:51:08,416 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 [2024-10-13 22:51:08,417 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 836 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2896 mSolverCounterSat, 360 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 3256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 360 IncrementalHoareTripleChecker+Valid, 2896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-13 22:51:08,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 79 Invalid, 3256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [360 Valid, 2896 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-13 22:51:08,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3275 states. [2024-10-13 22:51:08,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3275 to 3275. [2024-10-13 22:51:08,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3275 states, 3274 states have (on average 1.6108735491753208) internal successors, (5274), 3274 states have internal predecessors, (5274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:08,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3275 states to 3275 states and 5274 transitions. [2024-10-13 22:51:08,483 INFO L78 Accepts]: Start accepts. Automaton has 3275 states and 5274 transitions. Word has length 767 [2024-10-13 22:51:08,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:51:08,484 INFO L471 AbstractCegarLoop]: Abstraction has 3275 states and 5274 transitions. [2024-10-13 22:51:08,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 255.66666666666666) internal successors, (767), 2 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:08,484 INFO L276 IsEmpty]: Start isEmpty. Operand 3275 states and 5274 transitions. [2024-10-13 22:51:08,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 772 [2024-10-13 22:51:08,497 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:51:08,498 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-10-13 22:51:08,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 22:51:08,499 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:51:08,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:51:08,501 INFO L85 PathProgramCache]: Analyzing trace with hash -2092593977, now seen corresponding path program 1 times [2024-10-13 22:51:08,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:51:08,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030143980] [2024-10-13 22:51:08,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:51:08,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:51:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:51:09,321 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-13 22:51:09,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:51:09,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030143980] [2024-10-13 22:51:09,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030143980] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 22:51:09,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 22:51:09,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 22:51:09,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382664127] [2024-10-13 22:51:09,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 22:51:09,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 22:51:09,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:51:09,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 22:51:09,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 22:51:09,326 INFO L87 Difference]: Start difference. First operand 3275 states and 5274 transitions. Second operand has 3 states, 3 states have (on average 253.66666666666666) internal successors, (761), 2 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:11,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:51:11,477 INFO L93 Difference]: Finished difference Result 9821 states and 15819 transitions. [2024-10-13 22:51:11,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 22:51:11,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 253.66666666666666) internal successors, (761), 2 states have internal predecessors, (761), 0 states have call successors, (0), 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 771 [2024-10-13 22:51:11,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:51:11,494 INFO L225 Difference]: With dead ends: 9821 [2024-10-13 22:51:11,494 INFO L226 Difference]: Without dead ends: 6547 [2024-10-13 22:51:11,498 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 [2024-10-13 22:51:11,498 INFO L432 NwaCegarLoop]: 439 mSDtfsCounter, 819 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2663 mSolverCounterSat, 518 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 3181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 518 IncrementalHoareTripleChecker+Valid, 2663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-13 22:51:11,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 447 Invalid, 3181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [518 Valid, 2663 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-13 22:51:11,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6547 states. [2024-10-13 22:51:11,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6547 to 6547. [2024-10-13 22:51:11,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6547 states, 6546 states have (on average 1.4457684081882065) internal successors, (9464), 6546 states have internal predecessors, (9464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:11,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6547 states to 6547 states and 9464 transitions. [2024-10-13 22:51:11,600 INFO L78 Accepts]: Start accepts. Automaton has 6547 states and 9464 transitions. Word has length 771 [2024-10-13 22:51:11,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:51:11,600 INFO L471 AbstractCegarLoop]: Abstraction has 6547 states and 9464 transitions. [2024-10-13 22:51:11,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 253.66666666666666) internal successors, (761), 2 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:11,601 INFO L276 IsEmpty]: Start isEmpty. Operand 6547 states and 9464 transitions. [2024-10-13 22:51:11,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 797 [2024-10-13 22:51:11,616 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:51:11,617 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2024-10-13 22:51:11,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 22:51:11,617 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:51:11,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:51:11,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1811289873, now seen corresponding path program 1 times [2024-10-13 22:51:11,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:51:11,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490848263] [2024-10-13 22:51:11,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:51:11,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:51:11,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:51:12,263 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-13 22:51:12,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:51:12,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490848263] [2024-10-13 22:51:12,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490848263] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 22:51:12,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 22:51:12,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 22:51:12,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453661656] [2024-10-13 22:51:12,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 22:51:12,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 22:51:12,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:51:12,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 22:51:12,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 22:51:12,267 INFO L87 Difference]: Start difference. First operand 6547 states and 9464 transitions. Second operand has 3 states, 3 states have (on average 257.0) internal successors, (771), 2 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:14,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:51:14,249 INFO L93 Difference]: Finished difference Result 14729 states and 21518 transitions. [2024-10-13 22:51:14,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 22:51:14,250 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 257.0) internal successors, (771), 2 states have internal predecessors, (771), 0 states have call successors, (0), 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 796 [2024-10-13 22:51:14,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:51:14,271 INFO L225 Difference]: With dead ends: 14729 [2024-10-13 22:51:14,271 INFO L226 Difference]: Without dead ends: 8183 [2024-10-13 22:51:14,281 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 [2024-10-13 22:51:14,281 INFO L432 NwaCegarLoop]: 499 mSDtfsCounter, 815 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2783 mSolverCounterSat, 410 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 3193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 410 IncrementalHoareTripleChecker+Valid, 2783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-13 22:51:14,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [815 Valid, 506 Invalid, 3193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [410 Valid, 2783 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-13 22:51:14,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8183 states. [2024-10-13 22:51:14,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8183 to 8183. [2024-10-13 22:51:14,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8183 states, 8182 states have (on average 1.413957467611831) internal successors, (11569), 8182 states have internal predecessors, (11569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:14,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8183 states to 8183 states and 11569 transitions. [2024-10-13 22:51:14,414 INFO L78 Accepts]: Start accepts. Automaton has 8183 states and 11569 transitions. Word has length 796 [2024-10-13 22:51:14,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:51:14,415 INFO L471 AbstractCegarLoop]: Abstraction has 8183 states and 11569 transitions. [2024-10-13 22:51:14,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 257.0) internal successors, (771), 2 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:14,415 INFO L276 IsEmpty]: Start isEmpty. Operand 8183 states and 11569 transitions. [2024-10-13 22:51:14,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 804 [2024-10-13 22:51:14,427 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:51:14,428 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 22:51:14,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 22:51:14,428 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:51:14,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:51:14,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1724465891, now seen corresponding path program 1 times [2024-10-13 22:51:14,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:51:14,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386337739] [2024-10-13 22:51:14,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:51:14,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:51:14,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:51:14,710 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-13 22:51:14,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:51:14,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386337739] [2024-10-13 22:51:14,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386337739] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 22:51:14,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 22:51:14,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 22:51:14,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161911625] [2024-10-13 22:51:14,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 22:51:14,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 22:51:14,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:51:14,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 22:51:14,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 22:51:14,715 INFO L87 Difference]: Start difference. First operand 8183 states and 11569 transitions. Second operand has 3 states, 3 states have (on average 259.3333333333333) internal successors, (778), 2 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:16,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:51:16,797 INFO L93 Difference]: Finished difference Result 24545 states and 34704 transitions. [2024-10-13 22:51:16,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 22:51:16,798 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 259.3333333333333) internal successors, (778), 2 states have internal predecessors, (778), 0 states have call successors, (0), 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 803 [2024-10-13 22:51:16,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:51:16,825 INFO L225 Difference]: With dead ends: 24545 [2024-10-13 22:51:16,826 INFO L226 Difference]: Without dead ends: 16363 [2024-10-13 22:51:16,833 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 [2024-10-13 22:51:16,834 INFO L432 NwaCegarLoop]: 464 mSDtfsCounter, 1076 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2066 mSolverCounterSat, 1063 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 3129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1063 IncrementalHoareTripleChecker+Valid, 2066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-13 22:51:16,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1076 Valid, 471 Invalid, 3129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1063 Valid, 2066 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-13 22:51:16,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16363 states. [2024-10-13 22:51:16,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16363 to 16363. [2024-10-13 22:51:16,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16363 states, 16362 states have (on average 1.2893289328932893) internal successors, (21096), 16362 states have internal predecessors, (21096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:17,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16363 states to 16363 states and 21096 transitions. [2024-10-13 22:51:17,013 INFO L78 Accepts]: Start accepts. Automaton has 16363 states and 21096 transitions. Word has length 803 [2024-10-13 22:51:17,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:51:17,014 INFO L471 AbstractCegarLoop]: Abstraction has 16363 states and 21096 transitions. [2024-10-13 22:51:17,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 259.3333333333333) internal successors, (778), 2 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:17,014 INFO L276 IsEmpty]: Start isEmpty. Operand 16363 states and 21096 transitions. [2024-10-13 22:51:17,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 826 [2024-10-13 22:51:17,034 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:51:17,035 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-13 22:51:17,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 22:51:17,035 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:51:17,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:51:17,036 INFO L85 PathProgramCache]: Analyzing trace with hash -353258018, now seen corresponding path program 1 times [2024-10-13 22:51:17,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:51:17,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357539701] [2024-10-13 22:51:17,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:51:17,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:51:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:51:18,010 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 22:51:18,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:51:18,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357539701] [2024-10-13 22:51:18,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357539701] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 22:51:18,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 22:51:18,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 22:51:18,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426060886] [2024-10-13 22:51:18,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 22:51:18,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 22:51:18,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:51:18,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 22:51:18,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 22:51:18,017 INFO L87 Difference]: Start difference. First operand 16363 states and 21096 transitions. Second operand has 4 states, 4 states have (on average 206.25) internal successors, (825), 3 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) [2024-10-13 22:51:20,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:51:20,192 INFO L93 Difference]: Finished difference Result 33543 states and 43057 transitions. [2024-10-13 22:51:20,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 22:51:20,193 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 206.25) internal successors, (825), 3 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 825 [2024-10-13 22:51:20,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:51:20,219 INFO L225 Difference]: With dead ends: 33543 [2024-10-13 22:51:20,220 INFO L226 Difference]: Without dead ends: 17181 [2024-10-13 22:51:20,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 22:51:20,235 INFO L432 NwaCegarLoop]: 757 mSDtfsCounter, 959 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 3417 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 959 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 3458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 3417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-13 22:51:20,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [959 Valid, 1303 Invalid, 3458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 3417 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-13 22:51:20,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17181 states. [2024-10-13 22:51:20,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17181 to 17181. [2024-10-13 22:51:20,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17181 states, 17180 states have (on average 1.2759022118742724) internal successors, (21920), 17180 states have internal predecessors, (21920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:20,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17181 states to 17181 states and 21920 transitions. [2024-10-13 22:51:20,451 INFO L78 Accepts]: Start accepts. Automaton has 17181 states and 21920 transitions. Word has length 825 [2024-10-13 22:51:20,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:51:20,452 INFO L471 AbstractCegarLoop]: Abstraction has 17181 states and 21920 transitions. [2024-10-13 22:51:20,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 206.25) internal successors, (825), 3 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) [2024-10-13 22:51:20,452 INFO L276 IsEmpty]: Start isEmpty. Operand 17181 states and 21920 transitions. [2024-10-13 22:51:20,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 841 [2024-10-13 22:51:20,472 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:51:20,472 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 22:51:20,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 22:51:20,473 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:51:20,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:51:20,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1021599913, now seen corresponding path program 1 times [2024-10-13 22:51:20,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:51:20,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972947606] [2024-10-13 22:51:20,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:51:20,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:51:20,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:51:20,824 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 22:51:20,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:51:20,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972947606] [2024-10-13 22:51:20,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972947606] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 22:51:20,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 22:51:20,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 22:51:20,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965902276] [2024-10-13 22:51:20,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 22:51:20,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 22:51:20,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:51:20,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 22:51:20,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 22:51:20,828 INFO L87 Difference]: Start difference. First operand 17181 states and 21920 transitions. Second operand has 3 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:22,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:51:22,966 INFO L93 Difference]: Finished difference Result 33543 states and 43015 transitions. [2024-10-13 22:51:22,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 22:51:22,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 0 states have call successors, (0), 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 840 [2024-10-13 22:51:22,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:51:22,986 INFO L225 Difference]: With dead ends: 33543 [2024-10-13 22:51:22,986 INFO L226 Difference]: Without dead ends: 17181 [2024-10-13 22:51:22,998 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 [2024-10-13 22:51:22,998 INFO L432 NwaCegarLoop]: 1412 mSDtfsCounter, 799 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2376 mSolverCounterSat, 865 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 3241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 865 IncrementalHoareTripleChecker+Valid, 2376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-13 22:51:22,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 1420 Invalid, 3241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [865 Valid, 2376 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-13 22:51:23,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17181 states. [2024-10-13 22:51:23,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17181 to 17181. [2024-10-13 22:51:23,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17181 states, 17180 states have (on average 1.2356228172293364) internal successors, (21228), 17180 states have internal predecessors, (21228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:23,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17181 states to 17181 states and 21228 transitions. [2024-10-13 22:51:23,146 INFO L78 Accepts]: Start accepts. Automaton has 17181 states and 21228 transitions. Word has length 840 [2024-10-13 22:51:23,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:51:23,146 INFO L471 AbstractCegarLoop]: Abstraction has 17181 states and 21228 transitions. [2024-10-13 22:51:23,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:23,146 INFO L276 IsEmpty]: Start isEmpty. Operand 17181 states and 21228 transitions. [2024-10-13 22:51:23,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 849 [2024-10-13 22:51:23,166 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:51:23,166 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-13 22:51:23,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 22:51:23,167 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:51:23,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:51:23,168 INFO L85 PathProgramCache]: Analyzing trace with hash -292940306, now seen corresponding path program 1 times [2024-10-13 22:51:23,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:51:23,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129445281] [2024-10-13 22:51:23,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:51:23,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:51:23,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:51:23,622 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-13 22:51:23,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:51:23,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129445281] [2024-10-13 22:51:23,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129445281] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 22:51:23,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 22:51:23,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 22:51:23,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19938457] [2024-10-13 22:51:23,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 22:51:23,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 22:51:23,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:51:23,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 22:51:23,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 22:51:23,626 INFO L87 Difference]: Start difference. First operand 17181 states and 21228 transitions. Second operand has 3 states, 3 states have (on average 276.0) internal successors, (828), 2 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:25,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:51:25,826 INFO L93 Difference]: Finished difference Result 46631 states and 58015 transitions. [2024-10-13 22:51:25,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 22:51:25,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 276.0) internal successors, (828), 2 states have internal predecessors, (828), 0 states have call successors, (0), 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 848 [2024-10-13 22:51:25,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:51:25,863 INFO L225 Difference]: With dead ends: 46631 [2024-10-13 22:51:25,863 INFO L226 Difference]: Without dead ends: 30269 [2024-10-13 22:51:25,880 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 [2024-10-13 22:51:25,880 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 893 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2291 mSolverCounterSat, 1123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 3414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1123 IncrementalHoareTripleChecker+Valid, 2291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-13 22:51:25,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [893 Valid, 299 Invalid, 3414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1123 Valid, 2291 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-13 22:51:25,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30269 states. [2024-10-13 22:51:26,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30269 to 29451. [2024-10-13 22:51:26,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29451 states, 29450 states have (on average 1.2129032258064516) internal successors, (35720), 29450 states have internal predecessors, (35720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:26,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29451 states to 29451 states and 35720 transitions. [2024-10-13 22:51:26,154 INFO L78 Accepts]: Start accepts. Automaton has 29451 states and 35720 transitions. Word has length 848 [2024-10-13 22:51:26,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:51:26,154 INFO L471 AbstractCegarLoop]: Abstraction has 29451 states and 35720 transitions. [2024-10-13 22:51:26,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 276.0) internal successors, (828), 2 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:26,155 INFO L276 IsEmpty]: Start isEmpty. Operand 29451 states and 35720 transitions. [2024-10-13 22:51:26,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 893 [2024-10-13 22:51:26,173 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:51:26,174 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 22:51:26,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 22:51:26,174 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:51:26,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:51:26,175 INFO L85 PathProgramCache]: Analyzing trace with hash 2023565977, now seen corresponding path program 1 times [2024-10-13 22:51:26,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:51:26,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777228808] [2024-10-13 22:51:26,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:51:26,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:51:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:51:26,724 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-10-13 22:51:26,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:51:26,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777228808] [2024-10-13 22:51:26,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777228808] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 22:51:26,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 22:51:26,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 22:51:26,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699203869] [2024-10-13 22:51:26,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 22:51:26,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 22:51:26,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:51:26,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 22:51:26,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 22:51:26,726 INFO L87 Difference]: Start difference. First operand 29451 states and 35720 transitions. Second operand has 3 states, 3 states have (on average 253.0) internal successors, (759), 2 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:28,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:51:28,834 INFO L93 Difference]: Finished difference Result 81805 states and 100031 transitions. [2024-10-13 22:51:28,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 22:51:28,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 253.0) internal successors, (759), 2 states have internal predecessors, (759), 0 states have call successors, (0), 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 892 [2024-10-13 22:51:28,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:51:28,893 INFO L225 Difference]: With dead ends: 81805 [2024-10-13 22:51:28,893 INFO L226 Difference]: Without dead ends: 53173 [2024-10-13 22:51:28,914 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 [2024-10-13 22:51:28,915 INFO L432 NwaCegarLoop]: 496 mSDtfsCounter, 110 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 3012 mSolverCounterSat, 356 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 3368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 356 IncrementalHoareTripleChecker+Valid, 3012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-13 22:51:28,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 504 Invalid, 3368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [356 Valid, 3012 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-13 22:51:28,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53173 states. [2024-10-13 22:51:29,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53173 to 44993. [2024-10-13 22:51:29,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44993 states, 44992 states have (on average 1.2251066856330015) internal successors, (55120), 44992 states have internal predecessors, (55120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:29,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44993 states to 44993 states and 55120 transitions. [2024-10-13 22:51:29,301 INFO L78 Accepts]: Start accepts. Automaton has 44993 states and 55120 transitions. Word has length 892 [2024-10-13 22:51:29,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:51:29,302 INFO L471 AbstractCegarLoop]: Abstraction has 44993 states and 55120 transitions. [2024-10-13 22:51:29,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 253.0) internal successors, (759), 2 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:29,302 INFO L276 IsEmpty]: Start isEmpty. Operand 44993 states and 55120 transitions. [2024-10-13 22:51:29,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1039 [2024-10-13 22:51:29,335 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:51:29,336 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-13 22:51:29,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 22:51:29,336 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:51:29,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:51:29,337 INFO L85 PathProgramCache]: Analyzing trace with hash 181154202, now seen corresponding path program 1 times [2024-10-13 22:51:29,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:51:29,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000255312] [2024-10-13 22:51:29,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:51:29,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:51:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:51:29,914 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 469 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-10-13 22:51:29,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:51:29,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000255312] [2024-10-13 22:51:29,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000255312] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 22:51:29,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 22:51:29,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 22:51:29,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715044360] [2024-10-13 22:51:29,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 22:51:29,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 22:51:29,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:51:29,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 22:51:29,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 22:51:29,917 INFO L87 Difference]: Start difference. First operand 44993 states and 55120 transitions. Second operand has 3 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:32,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:51:32,041 INFO L93 Difference]: Finished difference Result 110435 states and 135253 transitions. [2024-10-13 22:51:32,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 22:51:32,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 0 states have call successors, (0), 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 1038 [2024-10-13 22:51:32,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:51:32,110 INFO L225 Difference]: With dead ends: 110435 [2024-10-13 22:51:32,111 INFO L226 Difference]: Without dead ends: 66261 [2024-10-13 22:51:32,136 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 [2024-10-13 22:51:32,137 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 775 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2842 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 3174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 2842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-13 22:51:32,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 320 Invalid, 3174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 2842 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-13 22:51:32,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66261 states. [2024-10-13 22:51:32,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66261 to 64625. [2024-10-13 22:51:32,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64625 states, 64624 states have (on average 1.2031288685318149) internal successors, (77751), 64624 states have internal predecessors, (77751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:32,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64625 states to 64625 states and 77751 transitions. [2024-10-13 22:51:32,802 INFO L78 Accepts]: Start accepts. Automaton has 64625 states and 77751 transitions. Word has length 1038 [2024-10-13 22:51:32,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:51:32,802 INFO L471 AbstractCegarLoop]: Abstraction has 64625 states and 77751 transitions. [2024-10-13 22:51:32,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:32,803 INFO L276 IsEmpty]: Start isEmpty. Operand 64625 states and 77751 transitions. [2024-10-13 22:51:32,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1165 [2024-10-13 22:51:32,855 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:51:32,856 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 22:51:32,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 22:51:32,856 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:51:32,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:51:32,856 INFO L85 PathProgramCache]: Analyzing trace with hash 2027513237, now seen corresponding path program 1 times [2024-10-13 22:51:32,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:51:32,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958198864] [2024-10-13 22:51:32,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:51:32,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:51:32,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:51:33,593 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 670 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2024-10-13 22:51:33,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:51:33,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958198864] [2024-10-13 22:51:33,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958198864] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 22:51:33,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 22:51:33,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 22:51:33,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925272111] [2024-10-13 22:51:33,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 22:51:33,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 22:51:33,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:51:33,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 22:51:33,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 22:51:33,597 INFO L87 Difference]: Start difference. First operand 64625 states and 77751 transitions. Second operand has 3 states, 3 states have (on average 351.0) internal successors, (1053), 3 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:36,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:51:36,195 INFO L93 Difference]: Finished difference Result 147245 states and 178142 transitions. [2024-10-13 22:51:36,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 22:51:36,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 351.0) internal successors, (1053), 3 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1164 [2024-10-13 22:51:36,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:51:36,274 INFO L225 Difference]: With dead ends: 147245 [2024-10-13 22:51:36,275 INFO L226 Difference]: Without dead ends: 83439 [2024-10-13 22:51:36,289 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 [2024-10-13 22:51:36,290 INFO L432 NwaCegarLoop]: 411 mSDtfsCounter, 829 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2265 mSolverCounterSat, 1008 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 3273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1008 IncrementalHoareTripleChecker+Valid, 2265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-13 22:51:36,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 418 Invalid, 3273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1008 Valid, 2265 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-13 22:51:36,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83439 states. [2024-10-13 22:51:37,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83439 to 83439. [2024-10-13 22:51:37,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83439 states, 83438 states have (on average 1.1876123588772503) internal successors, (99092), 83438 states have internal predecessors, (99092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:37,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83439 states to 83439 states and 99092 transitions. [2024-10-13 22:51:37,223 INFO L78 Accepts]: Start accepts. Automaton has 83439 states and 99092 transitions. Word has length 1164 [2024-10-13 22:51:37,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:51:37,224 INFO L471 AbstractCegarLoop]: Abstraction has 83439 states and 99092 transitions. [2024-10-13 22:51:37,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 351.0) internal successors, (1053), 3 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:37,224 INFO L276 IsEmpty]: Start isEmpty. Operand 83439 states and 99092 transitions. [2024-10-13 22:51:37,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1231 [2024-10-13 22:51:37,449 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:51:37,450 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-13 22:51:37,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 22:51:37,450 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:51:37,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:51:37,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1825419370, now seen corresponding path program 1 times [2024-10-13 22:51:37,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:51:37,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52612060] [2024-10-13 22:51:37,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:51:37,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:51:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:51:38,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1086 backedges. 673 proven. 0 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2024-10-13 22:51:38,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:51:38,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52612060] [2024-10-13 22:51:38,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52612060] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 22:51:38,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 22:51:38,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 22:51:38,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893295768] [2024-10-13 22:51:38,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 22:51:38,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 22:51:38,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:51:38,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 22:51:38,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 22:51:38,053 INFO L87 Difference]: Start difference. First operand 83439 states and 99092 transitions. Second operand has 3 states, 3 states have (on average 314.0) internal successors, (942), 2 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:40,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:51:40,488 INFO L93 Difference]: Finished difference Result 194689 states and 230981 transitions. [2024-10-13 22:51:40,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 22:51:40,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 314.0) internal successors, (942), 2 states have internal predecessors, (942), 0 states have call successors, (0), 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 1230 [2024-10-13 22:51:40,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:51:40,605 INFO L225 Difference]: With dead ends: 194689 [2024-10-13 22:51:40,605 INFO L226 Difference]: Without dead ends: 112069 [2024-10-13 22:51:40,616 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 [2024-10-13 22:51:40,617 INFO L432 NwaCegarLoop]: 314 mSDtfsCounter, 850 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2167 mSolverCounterSat, 985 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 3152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 985 IncrementalHoareTripleChecker+Valid, 2167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-13 22:51:40,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 321 Invalid, 3152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [985 Valid, 2167 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-13 22:51:40,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112069 states. [2024-10-13 22:51:41,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112069 to 112069. [2024-10-13 22:51:41,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112069 states, 112068 states have (on average 1.1262447799550273) internal successors, (126216), 112068 states have internal predecessors, (126216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:41,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112069 states to 112069 states and 126216 transitions. [2024-10-13 22:51:41,843 INFO L78 Accepts]: Start accepts. Automaton has 112069 states and 126216 transitions. Word has length 1230 [2024-10-13 22:51:41,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:51:41,843 INFO L471 AbstractCegarLoop]: Abstraction has 112069 states and 126216 transitions. [2024-10-13 22:51:41,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 314.0) internal successors, (942), 2 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:41,843 INFO L276 IsEmpty]: Start isEmpty. Operand 112069 states and 126216 transitions. [2024-10-13 22:51:41,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1335 [2024-10-13 22:51:41,903 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:51:41,903 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-13 22:51:41,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 22:51:41,903 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:51:41,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:51:41,904 INFO L85 PathProgramCache]: Analyzing trace with hash 294390435, now seen corresponding path program 1 times [2024-10-13 22:51:41,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:51:41,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821123973] [2024-10-13 22:51:41,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:51:41,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:51:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:51:43,023 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 646 proven. 0 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked. [2024-10-13 22:51:43,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:51:43,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821123973] [2024-10-13 22:51:43,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821123973] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 22:51:43,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 22:51:43,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 22:51:43,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138753394] [2024-10-13 22:51:43,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 22:51:43,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 22:51:43,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:51:43,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 22:51:43,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 22:51:43,026 INFO L87 Difference]: Start difference. First operand 112069 states and 126216 transitions. Second operand has 3 states, 3 states have (on average 333.6666666666667) internal successors, (1001), 3 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:45,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:51:45,422 INFO L93 Difference]: Finished difference Result 224137 states and 252449 transitions. [2024-10-13 22:51:45,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 22:51:45,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 333.6666666666667) internal successors, (1001), 3 states have internal predecessors, (1001), 0 states have call successors, (0), 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 [2024-10-13 22:51:45,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:51:45,534 INFO L225 Difference]: With dead ends: 224137 [2024-10-13 22:51:45,534 INFO L226 Difference]: Without dead ends: 112887 [2024-10-13 22:51:45,595 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 [2024-10-13 22:51:45,596 INFO L432 NwaCegarLoop]: 1383 mSDtfsCounter, 623 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2652 mSolverCounterSat, 483 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 1391 SdHoareTripleChecker+Invalid, 3135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 483 IncrementalHoareTripleChecker+Valid, 2652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-13 22:51:45,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 1391 Invalid, 3135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [483 Valid, 2652 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-13 22:51:45,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112887 states. [2024-10-13 22:51:46,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112887 to 112887. [2024-10-13 22:51:46,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112887 states, 112886 states have (on average 1.1006590719841256) internal successors, (124249), 112886 states have internal predecessors, (124249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:46,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112887 states to 112887 states and 124249 transitions. [2024-10-13 22:51:46,971 INFO L78 Accepts]: Start accepts. Automaton has 112887 states and 124249 transitions. Word has length 1334 [2024-10-13 22:51:46,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:51:46,971 INFO L471 AbstractCegarLoop]: Abstraction has 112887 states and 124249 transitions. [2024-10-13 22:51:46,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 333.6666666666667) internal successors, (1001), 3 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:46,971 INFO L276 IsEmpty]: Start isEmpty. Operand 112887 states and 124249 transitions. [2024-10-13 22:51:47,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1342 [2024-10-13 22:51:47,029 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:51:47,029 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-13 22:51:47,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 22:51:47,029 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:51:47,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:51:47,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1687087927, now seen corresponding path program 1 times [2024-10-13 22:51:47,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:51:47,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422349121] [2024-10-13 22:51:47,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:51:47,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:51:47,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:51:47,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1322 backedges. 1059 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2024-10-13 22:51:47,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:51:47,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422349121] [2024-10-13 22:51:47,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422349121] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 22:51:47,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 22:51:47,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 22:51:47,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695271292] [2024-10-13 22:51:47,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 22:51:47,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 22:51:47,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:51:47,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 22:51:47,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 22:51:47,969 INFO L87 Difference]: Start difference. First operand 112887 states and 124249 transitions. Second operand has 3 states, 3 states have (on average 383.6666666666667) internal successors, (1151), 3 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:50,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:51:50,408 INFO L93 Difference]: Finished difference Result 237225 states and 261803 transitions. [2024-10-13 22:51:50,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 22:51:50,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 383.6666666666667) internal successors, (1151), 3 states have internal predecessors, (1151), 0 states have call successors, (0), 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 1341 [2024-10-13 22:51:50,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:51:50,529 INFO L225 Difference]: With dead ends: 237225 [2024-10-13 22:51:50,529 INFO L226 Difference]: Without dead ends: 125157 [2024-10-13 22:51:50,585 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 [2024-10-13 22:51:50,585 INFO L432 NwaCegarLoop]: 1347 mSDtfsCounter, 801 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2094 mSolverCounterSat, 893 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 2987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 893 IncrementalHoareTripleChecker+Valid, 2094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-13 22:51:50,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 1354 Invalid, 2987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [893 Valid, 2094 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-13 22:51:50,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125157 states. [2024-10-13 22:51:51,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125157 to 122703. [2024-10-13 22:51:51,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122703 states, 122702 states have (on average 1.084195856628254) internal successors, (133033), 122702 states have internal predecessors, (133033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:51,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122703 states to 122703 states and 133033 transitions. [2024-10-13 22:51:51,891 INFO L78 Accepts]: Start accepts. Automaton has 122703 states and 133033 transitions. Word has length 1341 [2024-10-13 22:51:51,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:51:51,891 INFO L471 AbstractCegarLoop]: Abstraction has 122703 states and 133033 transitions. [2024-10-13 22:51:51,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 383.6666666666667) internal successors, (1151), 3 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:51,891 INFO L276 IsEmpty]: Start isEmpty. Operand 122703 states and 133033 transitions. [2024-10-13 22:51:52,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1478 [2024-10-13 22:51:52,216 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:51:52,217 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-13 22:51:52,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 22:51:52,217 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:51:52,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:51:52,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1620206121, now seen corresponding path program 1 times [2024-10-13 22:51:52,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:51:52,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148759347] [2024-10-13 22:51:52,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:51:52,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:51:52,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:51:53,112 INFO L134 CoverageAnalysis]: Checked inductivity of 2160 backedges. 1534 proven. 0 refuted. 0 times theorem prover too weak. 626 trivial. 0 not checked. [2024-10-13 22:51:53,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:51:53,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148759347] [2024-10-13 22:51:53,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148759347] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 22:51:53,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 22:51:53,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 22:51:53,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479222852] [2024-10-13 22:51:53,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 22:51:53,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 22:51:53,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:51:53,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 22:51:53,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 22:51:53,114 INFO L87 Difference]: Start difference. First operand 122703 states and 133033 transitions. Second operand has 3 states, 3 states have (on average 358.0) internal successors, (1074), 3 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:56,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:51:56,036 INFO L93 Difference]: Finished difference Result 260947 states and 283125 transitions. [2024-10-13 22:51:56,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 22:51:56,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 358.0) internal successors, (1074), 3 states have internal predecessors, (1074), 0 states have call successors, (0), 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 1477 [2024-10-13 22:51:56,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:51:56,187 INFO L225 Difference]: With dead ends: 260947 [2024-10-13 22:51:56,187 INFO L226 Difference]: Without dead ends: 139063 [2024-10-13 22:51:56,202 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 [2024-10-13 22:51:56,203 INFO L432 NwaCegarLoop]: 1269 mSDtfsCounter, 663 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2990 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 1277 SdHoareTripleChecker+Invalid, 3293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 2990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-13 22:51:56,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 1277 Invalid, 3293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 2990 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-13 22:51:56,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139063 states. [2024-10-13 22:51:57,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139063 to 134973. [2024-10-13 22:51:57,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134973 states, 134972 states have (on average 1.077638324985923) internal successors, (145451), 134972 states have internal predecessors, (145451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:57,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134973 states to 134973 states and 145451 transitions. [2024-10-13 22:51:57,723 INFO L78 Accepts]: Start accepts. Automaton has 134973 states and 145451 transitions. Word has length 1477 [2024-10-13 22:51:57,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:51:57,723 INFO L471 AbstractCegarLoop]: Abstraction has 134973 states and 145451 transitions. [2024-10-13 22:51:57,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 358.0) internal successors, (1074), 3 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:51:57,724 INFO L276 IsEmpty]: Start isEmpty. Operand 134973 states and 145451 transitions. [2024-10-13 22:51:57,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1658 [2024-10-13 22:51:57,824 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:51:57,825 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 22:51:57,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-13 22:51:57,825 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:51:57,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:51:57,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1693993108, now seen corresponding path program 1 times [2024-10-13 22:51:57,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:51:57,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473389976] [2024-10-13 22:51:57,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:51:57,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:51:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:51:59,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 713 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2024-10-13 22:51:59,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:51:59,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473389976] [2024-10-13 22:51:59,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473389976] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 22:51:59,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 22:51:59,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 22:51:59,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790384032] [2024-10-13 22:51:59,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 22:51:59,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 22:51:59,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:51:59,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 22:51:59,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 22:51:59,483 INFO L87 Difference]: Start difference. First operand 134973 states and 145451 transitions. Second operand has 4 states, 4 states have (on average 276.5) internal successors, (1106), 3 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:52:02,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:52:02,957 INFO L93 Difference]: Finished difference Result 269127 states and 290077 transitions. [2024-10-13 22:52:02,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 22:52:02,957 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 276.5) internal successors, (1106), 3 states have internal predecessors, (1106), 0 states have call successors, (0), 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 1657 [2024-10-13 22:52:02,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:52:03,098 INFO L225 Difference]: With dead ends: 269127 [2024-10-13 22:52:03,099 INFO L226 Difference]: Without dead ends: 134973 [2024-10-13 22:52:03,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 22:52:03,147 INFO L432 NwaCegarLoop]: 309 mSDtfsCounter, 1349 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 4863 mSolverCounterSat, 397 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1349 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 5260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 397 IncrementalHoareTripleChecker+Valid, 4863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-13 22:52:03,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1349 Valid, 324 Invalid, 5260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [397 Valid, 4863 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-13 22:52:03,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134973 states. [2024-10-13 22:52:04,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134973 to 134973. [2024-10-13 22:52:04,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134973 states, 134972 states have (on average 1.0679029724683637) internal successors, (144137), 134972 states have internal predecessors, (144137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:52:04,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134973 states to 134973 states and 144137 transitions. [2024-10-13 22:52:04,395 INFO L78 Accepts]: Start accepts. Automaton has 134973 states and 144137 transitions. Word has length 1657 [2024-10-13 22:52:04,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:52:04,395 INFO L471 AbstractCegarLoop]: Abstraction has 134973 states and 144137 transitions. [2024-10-13 22:52:04,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 276.5) internal successors, (1106), 3 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:52:04,396 INFO L276 IsEmpty]: Start isEmpty. Operand 134973 states and 144137 transitions. [2024-10-13 22:52:04,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1664 [2024-10-13 22:52:04,811 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:52:04,812 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 22:52:04,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-13 22:52:04,812 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:52:04,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:52:04,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1195106564, now seen corresponding path program 1 times [2024-10-13 22:52:04,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:52:04,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625313050] [2024-10-13 22:52:04,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:52:04,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:52:05,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:52:06,185 INFO L134 CoverageAnalysis]: Checked inductivity of 1295 backedges. 731 proven. 0 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked. [2024-10-13 22:52:06,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:52:06,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625313050] [2024-10-13 22:52:06,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625313050] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 22:52:06,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 22:52:06,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 22:52:06,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909823870] [2024-10-13 22:52:06,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 22:52:06,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 22:52:06,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:52:06,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 22:52:06,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 22:52:06,189 INFO L87 Difference]: Start difference. First operand 134973 states and 144137 transitions. Second operand has 3 states, 3 states have (on average 367.0) internal successors, (1101), 3 states have internal predecessors, (1101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:52:08,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:52:08,698 INFO L93 Difference]: Finished difference Result 265037 states and 282687 transitions. [2024-10-13 22:52:08,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 22:52:08,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 367.0) internal successors, (1101), 3 states have internal predecessors, (1101), 0 states have call successors, (0), 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 1663 [2024-10-13 22:52:08,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:52:08,831 INFO L225 Difference]: With dead ends: 265037 [2024-10-13 22:52:08,831 INFO L226 Difference]: Without dead ends: 126793 [2024-10-13 22:52:08,885 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 [2024-10-13 22:52:08,885 INFO L432 NwaCegarLoop]: 1485 mSDtfsCounter, 551 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1950 mSolverCounterSat, 727 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 1492 SdHoareTripleChecker+Invalid, 2677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 727 IncrementalHoareTripleChecker+Valid, 1950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-13 22:52:08,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 1492 Invalid, 2677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [727 Valid, 1950 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-13 22:52:08,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126793 states. [2024-10-13 22:52:09,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126793 to 122703. [2024-10-13 22:52:09,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122703 states, 122702 states have (on average 1.0628922103959186) internal successors, (130419), 122702 states have internal predecessors, (130419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:52:10,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122703 states to 122703 states and 130419 transitions. [2024-10-13 22:52:10,064 INFO L78 Accepts]: Start accepts. Automaton has 122703 states and 130419 transitions. Word has length 1663 [2024-10-13 22:52:10,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:52:10,064 INFO L471 AbstractCegarLoop]: Abstraction has 122703 states and 130419 transitions. [2024-10-13 22:52:10,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 367.0) internal successors, (1101), 3 states have internal predecessors, (1101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:52:10,064 INFO L276 IsEmpty]: Start isEmpty. Operand 122703 states and 130419 transitions. [2024-10-13 22:52:10,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1749 [2024-10-13 22:52:10,131 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:52:10,131 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-13 22:52:10,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-13 22:52:10,132 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:52:10,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:52:10,132 INFO L85 PathProgramCache]: Analyzing trace with hash 192524133, now seen corresponding path program 1 times [2024-10-13 22:52:10,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:52:10,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234633441] [2024-10-13 22:52:10,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:52:10,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:52:10,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:52:11,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1951 backedges. 1324 proven. 0 refuted. 0 times theorem prover too weak. 627 trivial. 0 not checked. [2024-10-13 22:52:11,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:52:11,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234633441] [2024-10-13 22:52:11,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234633441] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 22:52:11,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 22:52:11,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 22:52:11,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329279785] [2024-10-13 22:52:11,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 22:52:11,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 22:52:11,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:52:11,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 22:52:11,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 22:52:11,467 INFO L87 Difference]: Start difference. First operand 122703 states and 130419 transitions. Second operand has 3 states, 3 states have (on average 382.0) internal successors, (1146), 3 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:52:13,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:52:13,855 INFO L93 Difference]: Finished difference Result 245405 states and 260837 transitions. [2024-10-13 22:52:13,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 22:52:13,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 382.0) internal successors, (1146), 3 states have internal predecessors, (1146), 0 states have call successors, (0), 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 1748 [2024-10-13 22:52:13,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:52:14,009 INFO L225 Difference]: With dead ends: 245405 [2024-10-13 22:52:14,009 INFO L226 Difference]: Without dead ends: 123521 [2024-10-13 22:52:14,071 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 [2024-10-13 22:52:14,071 INFO L432 NwaCegarLoop]: 1347 mSDtfsCounter, 691 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2542 mSolverCounterSat, 476 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 3018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 476 IncrementalHoareTripleChecker+Valid, 2542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-13 22:52:14,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 1355 Invalid, 3018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [476 Valid, 2542 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-13 22:52:14,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123521 states. [2024-10-13 22:52:15,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123521 to 120249. [2024-10-13 22:52:15,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120249 states, 120248 states have (on average 1.0462045106779323) internal successors, (125804), 120248 states have internal predecessors, (125804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:52:15,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120249 states to 120249 states and 125804 transitions. [2024-10-13 22:52:15,526 INFO L78 Accepts]: Start accepts. Automaton has 120249 states and 125804 transitions. Word has length 1748 [2024-10-13 22:52:15,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:52:15,526 INFO L471 AbstractCegarLoop]: Abstraction has 120249 states and 125804 transitions. [2024-10-13 22:52:15,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 382.0) internal successors, (1146), 3 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 22:52:15,527 INFO L276 IsEmpty]: Start isEmpty. Operand 120249 states and 125804 transitions. [2024-10-13 22:52:15,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1783 [2024-10-13 22:52:15,591 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:52:15,592 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-13 22:52:15,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-13 22:52:15,592 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:52:15,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:52:15,593 INFO L85 PathProgramCache]: Analyzing trace with hash -780680798, now seen corresponding path program 1 times [2024-10-13 22:52:15,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:52:15,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768237595] [2024-10-13 22:52:15,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:52:15,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:52:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat